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Governmental & Military >> Aviation Abbreviations

Look through 4999 acronyms and abbreviations related to Aviation:

• XCVR — Transceiver
• DEP PROC — Departure Procedure
• GTEE — Guarantee
• XMIT — Transmit
• OPS — Operations
• ACAS — Aircraft Collision Avoidance System
• LAN — Local Area Network
• NOTAMR — Notam Replacing another Notam
• N/A — Not Applicable
• LTHH — Liner Terms Hook/Hook (shipping)
• AVSEC — Aviation Security
• ADVON — Advanced Echelon
• RAIL — Runway Alignment Indicator Lights
• BTWN — Between
• D.O.T — Department of Transport
• ETA — Estimated Time of Arrival
• OPR — Office of Primary Responsibility
• MOLCHOPT — More or Less Charterers Option
• XBAR — Crossbar
• DLOSP — Dropping Last Outwards Sea Pilot
• T-VASIS T — Visual Approach Slope Indicator System
• DCE — Data Circuit-terminating Equipment
• IROI — Instantaneous Return on Investment
• OEM — Original Equipment Manufacturer (usually in reference to car parts)
• ABT — About
• FLSA — Fair Labor Standards Act
• ROM — Read-Only Memory
• FTP — File Transfer Protocol
• ANSI — American National Standards Institute, Inc.
• LASER — Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
• MSG — Message
• LRU — Line Replaceable Unit
• IT — Information Technology
• MIN/MAX — Minimum/Maximum
• ARINC 604 — Guidance For Design And Use Of built-In Test Equipment
• BSS 1/1 — Basis 1 Port to 1 Port
• A-VDGS — Advanced-Visual Docking Guidance System
• ICD — Interface Control Document
• ACCUM — Accumulate
• IQ — Intelligence Quotient
• DFAX — Digital Facsimile
• EPA — Environmental Protection Agency (US)
• C102 (TSO) — Helicopter Radar Approach, Issued 04/02/84
• TBA — To Be Advised
• CPU — Central Processing Unit
• FTE — Full Time Equivalent
• C/N0 — Carrier-to-Noise-Density Ratio
• DODAR — Diagnosis, Options, Decision, Assessment and Revision
• FIFO — First In, First Out
• IP — Internet Protocol

• B-RNAV — Basic Area Navigation
• IRL — Republic Of Ireland
• PDF — Portable Document Format (created by Adobe Acrobat)
• NOTAMC — Notam Cancelling another Notam
• DWAT — Deadweight
• A SMGCS — Advanced Surface Movement Guidance and Control Systems
• ANOVA — Analysis of Variance (statistics)
• A-VASIS — Advanced Visual Approach Slope Indicator System
• FDEDANRSAOCLONL — Freight Deemed Earned, Discountless And Non-Returnable Ship And Or Cargo Lost Or Not Lost
• A — Ampere
• R B — Range and Bearing line
• MAN — Metropolitan Area Network
• ARINC 422 — Guidance For Modification Status Indicators & Avionics Service Bulletins
• PPE — Personal Protective Equipment
• GUI — Graphical User Interface (goo-ey)
• QC — Quality Control
• BA FAIR — Braking action Fair
• Q.23 — Signalling system for PABX
• MOU — Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
• R&D — Research & Development
• X-BAND — The frequency range between 8000 and 12500 MHz
• FAQ — Frequently Asked Questions (sometimes Pronounced Fak)
• JP — Japan
• I AND Q CHANNELS — In-phase and Quadrature channels
• A/D CONVERTER — Analogue-to Digital Converter
• CRT — Cathode Ray Tube (type of TV)
• MTBF — Mean Time Before Failure
• POS REF — Position Reference
• BA NIL — Braking Action Nil
• WX — Weather
• X-WIND — Cross Wind
• D-GPS — Differential Global Positioning System
• RF — Radio Frequency
• EDI — Electronic Data Interchange
• Q PROCEDURE — Procedure to identify replacement flight plans
• EMARSSH — Europe, Middle East, Asia Route Structure of the Himalayas
• JAA AMC — JAA Acceptable Means of Compliance
• CAA SI — Civil Aviation Authority of Solomon Islands
• S-SUP — Sector Supervisor
• XGEO — Cancel GEO
• R-CHANNEL — Random Access Channel
• ERDF — European Regional Development Fund
• BA POOR — Braking Action Poor
• HALS / DTOP — High Approach Landing System / Displaced Threshold Operations
• W/STEP — With Step Change in Altitude
• P,R,D AREA — Prohibited, Restricted, or Danger Area
• XECM — Cancel Executive Controller Message
• EXTRAP — Extrapolate
• O&M — Operation and Maintenance
• XLTR — Translater

• KAEPA — Kuwait Aircraft Engineers and Pilots Association
• WAYPOINT — Position in space usually on aircraft's flight plan
• PACOTS — Pacific Organised Track System
• D-OTIS — Data Link Operational Terminal Information Service
• DEC — Digital Equipment Corporation
• IFPRU — IFPS Responsible Unit
• D-ATSU — A Downstream Air Traffic Services Unit
• OJT — On the Job Training
• DA/H — decision altitude/height
• M:M — Many-to-Many Relationship
• W/MOD — With Modification of Vertical Profile
• NPV — Net Present Value {economics}
• MOA — Memorandum Of Agreement
• OBTEX — Offboard Targeting Experiments
• IRR — Internal Rate of Return
• LTIOV — Latest Time Information of Value
• B/CRS — Back Course
• T-ATSU — Transferring ATS Unit
• TBD — To Be Determined
• FAASTEAM — FAA Safety Team
• GIS — Geographic Information System
• F&CM — Flow And Capacity Management
• SMEQ — Subjective Mental Effort Questionnaire
• D-TO NL — Derated Takeoff Engine Fan Speed
• R,E&D — Research, Engineering and Development
• SMTP — Simple Mail Transfer Protocol
• EU — European Union (1994; formerly referred to as the EEC or EC)
• LOI — Letter Of Intent
• XCOORD — Cancel Co-ordination
• HIRL — High Intensity Runway Lights
• FY — Fiscal Year
• EEO — Equal Employment Opportunity
• CTRL — Control
• CAA NZ — Civil Aviation Authority of New Zealand
• M-ADS — Modified Automatic Dependent Surveillance
• ARPA — Advanced Research Projects Agency (made early internet)
• T-CHANNEL — Time Division Multiple-Access Channel
• FANOMOS — Flight track and Aircraft NOise Monitoring System
• CAA PNG — Civil Aviation Authority of Papua New Guinea
• XASM — Cancel Assume
• FYI — For Your Information
• R-ATSU — The Receiving Air Traffic Services Unit
• GPS — Global Positioning System (ex-NAVSTAR)
• COD — Cash On Delivery
• DOD — United States Department of Defense
• SOW — Statement Of Work
• VAT — Value Added Tax
• CV — Curriculum Vitae
• ARINC 424 — Navigation System Data Base
• I(FD) — MTI Improvement Factor

• ACK — Acknowledge (telecommunications; Cf. NAK)
• NAAPE — National Association of Aircraft Pilots and Engineers
• WWW — World Wide Web
• VAFORIT — VAFOR Implementation
• SOP — Standard Operational Procedure
• RAARR — Radar Arrival
• IBM — International Business Machines Corporation
• DZ — Algeria
• V/TRK — Vertical Track
• JAAC/JAA CE — JAA Committee
• BAHAMAS ALPA — Bahamas Airline Pilots Association
• MLS — Microwave Landing System
• DAARWIN — Distributed ATM Architecture based on
• XCONF — Delete CONFlict
• XOFF/PDR — Cancel Off Predetermined Route
• EGATS — Eurocontrol Guild of Air Traffic Services
• ADP — Automated Data Processing
• PDA — Personal Digital Assistant
• O-QAR — Optical Quick Access Recorder
• C/S/S/N — Capacity/Safety/Security/Noise
• EAMG SSG — EAMG Systems Sub-Group
• XMITR — Transmitter
• SAAFEA — South African Airways Flight Engineers Association
• CIP — Carriage and Insurance Paid to
• GALPA — Ghanaian Air Line Pilots Association
• P.ACCS — Pairs of ACCs
• PCB — printed circuit board
• XNSSR — Exit NSSR
• CAP — Civil Air Patrol
• XFRQ — Cancel FreQuency message
• P.T.T — Push-to-Talk
• ESA — European Space Agency
• M/ASI — Mach/Airspeed Indicator
• IA-5 — International Alphabet Number 5
• LABSW — LABS Switch System
• I/AFSS — International AFSS
• LOV — List Of Values
• PALLAS — Phased Automation of the Hellenic ATC System
• LABSC — LABS GS-200 Computer
• IA/CC — Indirect Access/Common Control
• BAREBOAT CHTR. — Bareboat Charter
• AHRS — Attitude Heading Reference System
• XBRIGHT — Cancel highlighting
• EAD SGR — EAD Sub-Group
• XIFL — Cancel Intermediate Flight Level
• HADAMARD — Multi-radar processing written in ADA
• DAMFORDET — Damages for Detention
• LABSR — LABS Remote Equipment
• AAF-1 — Director of Airway Facilities
• VBFNG(LO) — Low speed CAS at N g's to buffet onset

• DOT — Department of Transport
• VBF(LO) — Flaps up minimum buffet speed at current maneuver load factor minus altitude dependent variable
• PAQ — Position Analysis Questionnaire
• P… — Prohibited Area
• XFDM — Cancel FDM
• AAGDI — Automated Air Ground Data Interchange
• VBFNG(HI) — High speed CAS at N g's to buffet onset
• EANPG — Regional European Air Navigation Planning Group
• ARINC 610 — Guidance For Design and Integration of Aircraft Avionics Equipment In Simulators, Supplement 1
• DE — Germany
• HALPA — Hellenic Air Line Pilots Association
• ISDN — Integrated Services Digital Network
• DSS — Decision Support System
• XHOLD — Cancel Hold
• ATA — Area Transportation Authority
• AOG — Aircraft On Ground
• HBARO — Barometric Altitude
• EXW — Ex Works
• NBFR — Not Before
• JAAB/JAA-B — Joint Boards
• C87A — Low Range Radar Altimeters, Issued 01/01
• HAWOP — Helicopter All-Weather Operations Study Group
• KARLDAP — Karlsruhe Automatic Data Processing and Display System
• 2H — Second Half
• CIO — Chief Information Officer
• JALPA — Jamaica Air Line Pilots Association
• FAACIS — FAA Communications Information System
• AFDK — After Dark
• JAARC — JAA Research Committee
• DARP(S) — Dynamic Airborne Route Planning (System)
• KG — Kilogram
• XEXPLT — Cancel Extrapolation
• PALPU — Pancyprian Airline Pilots Union
• C91A — Emergency Locator Transmitter, Issued 04/85
• ERP — Emergency Response Plan
• DRAM — Dynamic Random Access Memory (dee-ram) (computing)
• EAPTU — Air Line Pilots Trade Union
• WAN — Wide Area Network
• AGL — Above Ground Level
• LOB — Line Of Business
• LOA — Letter Of Agreement
• CTR — Center
• DATALINK — Digitized Information Transfer (air/ground)
• LED — law enforcement desk; light emitting diode
• CBT — Computer Based Training
• FAS — Free Alongside Ship
• RNG — Range
• ELBA — Emergency Location Beacon-Aircraft
• CFR — Code of Federal Regulations
• FACUTL — Facility Utilization System

• NADSW — NADIN Switches
• QTY — Quantity
• GNP — gross national product (economics)
• DABRK — Daybreak
• CFE — Customer-Furnished Equipment
• QOS — Quality of Service
• FAA — Federal Aviation Administration
• IMF — International Monetary Fund
• CDC — Computer Display Channel
• EADCOS — EAD Co-ordination Group
• SAR — Search And Rescue
• CONUS — Continental United States (48 Contiguous States and DC)
• ATC — Air traffic control
• ICAO — International Civil Aviation Organization
• FAR — Federal Acquisition Regulation
• PALS — Precision Approach Lighting System
• SAN — Storage Area Network
• IDP — Individual Development Plan
• IANSSC — IANS Steering Committee
• CM — Centimeter
• EU-OPS — EASA Operations Regulations
• ACFT — Aircraft
• HDLTSBENDS — Half Despatch Lay Time Saved Both Ends
• DOS — Disk Operating System
• QMS — Quality Management System
• MTTR — Mean Time To Repair
• SQL — Structured Query Language
• DDU — Delivery Duty Unpaid
• MHZ — Megahertz (Megacycles Per Second)
• CUG — Closed User Group
• ITU — International Telecommunication Union
• NTSB — US National Transportation Safety Board
• PRE-OJT — Pre-On-the-Job Training
• OMB — Office of Management and Budget (U.S.)
• ASM — Available Seat Mile
• ATA — Actual Time of Arrival
• HZ — cycles per second (hertz)
• LVL — Level
• FDP/RDP — Flight Data Processing/Radar Data Processing
• B/L — Bill of Lading
• AAL — Above Aerodrome Level
• NATO — North Atlantic Treaty Organisation
• PRI — Primary Rate Interface (ISDN)
• ALT — Alternate
• CHOPT — Charterers Option
• ATHWARTSHIPS — At right angles to the centreline of the ship
• ATCRBS — Air Traffic Control Radar Beacon System
• LADGPS — Local Area Differential Global Positioning System
• MSL — Mean Sea Level
• Q&A — Question & Answer

• IATA — International Air Transport Association
• VHF — Very High Frequency
• ADC — Air Data Computer
• KE — Kenya
• PM — Preventive Maintenance
• LNG — Liquefied Natural Gas
• FOB — Free On Board
• APR — April River Airport, April River, Papua New Guinea
• FOIA — Freedom of Information Act
• FLT — Full Liner Terms
• BPS — bits per second
• GSA — U.S. General Services Administration
• INFO — Information
• IWL — Institute Warranty Limits
• BVR — Beyond Visual Range
• HQ — Headquarters (HDQ Preferred)
• CISO — Chief Information Security Officer
• BAF — Belgian Air Force
• IAEA — International Atomic Energy Agency
• GMT — Greenwich Mean Time (Zulu)
• EXPLT — Extrapolate
• K — Kilo-
• OUTB — Outbound
• TTG — Time-To-Go
• W — Watt
• RCR — Runway Condition Reading
• COOP — Continuity of Operations
• HAZMAT — Hazardous Material
• MIPS — Millions of Instructions Per Second
• CQD — Customary Quick Despatch
• EBCDIC — Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
• VCRI — Verification Cross Reference Index
• ARINC 753 — HF Data Link System
• FCC — Federal Communications Commission (US)
• PSTN — Public Switched Telephone Network
• DML — Data Manipulation Language
• AMSL — Above Mean Sea Level
• TSTMS — Thunderstorms
• AT&T — American Telephone and Telegraph (U.S. company, also known as "Ma Bell")
• UA — Ukraine
• EEG — Electro-EncephaloGram
• FDD — Freight Demurrage Deadfreight
• DDE — Dynamic Data Exchange (in software parlance)
• CEP — Circular Error Probable
• APU — Auxiliary Power Unit
• ETS — Estimated Time of Sailing
• POS INIT — Position Initialization
• BOD — Beneficial Occupancy Date
• UN — United Narions
• COGSA — U.S. Carriage of Goods by Sea Act

• UHF — Ultra High Frequency (300-3000 MHz; 1m-10cm)
• AED — Automated external defibrillator
• AGW — All Going Well
• NOAA — National Oceanic and Atmospheric Administration (US)
• BCR — Benefit/Cost Ratio
• CPT — Carriage Paid To
• DEBRIEF — Debriefing
• IM — Information Management
• OPM — Office of Personnel Management
• CAA — Civil Aviation Authority
• CNEE — Consignee
• AC — Air Canada
• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• LOI — Letter of Indemnity
• LF — Low Frequency
• CAF — Currency Adjustment Factor
• CZ — Czech Republic
• KW — Kilowatt (one thousand watts) (measurement)
• CASE — computer-automated software engineering
• LSD — Lashed Secured Dunnaged
• RISC — Reduced Instruction Set Computer
• KBS — Knowledge-Based System
• BRI — Basic Rate Interface
• GE — Georgia
• 16PF — Sixteen Personality Factor Questionnaire
• AFCS — Automatic Flight Control System
• ACMS — Aircraft Condition Monitoring System
• MTTF — Mean Time To Failure
• COS — Chief of Staff
• IR — Islamic Republic of Iran
• ALSTG — Altimeter Setting
• SALS — Short Approach Lighting System
• I/O — Input/Output
• AF — Air Force
• D-ATIS — Digital - Automatic Terminal Information Service
• CIF — Cost, Insurance, Freight
• EIS — Environmental Impact Statement (US)
• ETC — Estimated Time of Completion
• TCP — Transmission Control Protocol
• LOCID — Location Identifier
• MIL — Military
• EG — Egypt
• TC/OC — Technical Control and Operational Control
• CAT — Category (e.g. CAT-5 cable)
• TTL — Transistor-Transistor Logic
• IFB — Invitation For Bid
• 1 PPS — One Pulse Per Second
• EXTRM — Extreme
• ACPT — Accept
• S — South

• DBMS — Data Base Management System
• MBO — Management by Objective
• ALT — Altitude
• AOR — Area of Responsibility. The assigned area to any given unit.
• MIN — Minimum
• ALSF-2 — High Intensity Approach Lighting Systerm with Sequenced Flashing Lights.
• ATDNSHINC — Any Time Day/Night Sundays and Holidays Included
• GPO — Government Printing Office
• DR — Disaster Recovery
• PVC — Permanent Virtual Circuit (ATM)
• COTR — Contracting Officer Technical Representative
• SVC — Service
• FIM — Fault Isolation Manual
• KHZ — kilohertz (1000 cycles per second)
• WT — Weight
• SAE — Society of Automotive Engineers
• L/C — Letter of Credit
• GEN — General Motors
• MAX — Maximum
• NM — Nautical Mile
• CU — Control Unit
• PBX — Private Branch eXchange (company phone system)
• HUMS — Health and usage monitoring systems
• ADSY — Administrative Equipment Systems
• SMS — Safety Management Systems
• ETD — Estimated Time of Departure
• RSPL — Recommended Spare Parts List
• NEG — NEGative
• COTS — Commercial Off the Shelf Software
• MAINT — Maintenance
• BW — Bandwidth
• DVOF — Digital Vertical Obstruction File
• ARINC 743 — Airborne Global Positioning System Receiver
• DHDATSBE — Despatch Half Demurrage on All Time Saved Both Ends
• IFTO — International Federation of Tour Operators
• DME — Distance Measuring Equipment
• CM — Configuration Management
• PER SE — By Itself
• PDN — Public Data Network
• COA — Contract Of Affreightment
• TX / RX — Transmitter / Receiver
• DK — Deck
• NOTAMN — New Notam
• TV — Television
• UPU — Universal Postal Union
• AO — Authorizing Official
• PRN CODE — Pseudo Random Noise Code
• USAF — United States Air Force
• CGL — Circling Guidance Light
• LEO — Low Earth Orbit (satellite communications)

• ADDENDUM — Additional chartering terms at the end of a charter party
• DMA — direct memory access (computer term)
• RVR — Runway Visual Range
• CW — Continuous Wave
• IR — Iran Air
• CMO — Certificate Management Office
• PDPR — Per Day Pro Rata
• RMS — root mean square (preferred over "RMS")
• APAPI — Abbreviated Precision Approach Path Indicator
• DDP — Delivered Duty Paid
• RESA — Runway End Safety Area
• HU — Hungary
• CFR — Cost and Freight
• EPR — Engine Pressure Ratio
• DES — Delivered Ex Ship
• CAVU — Ceiling And Visibility Unlimited
• AE — Application Entity
• CG — Center of Gravity (DXS)
• ACD — Automatic Call Distributor
• RLLS — Runway Lead-In Light System
• OO — SkyWest Airlines
• ITIL — Information Technology Infrastructure Library
• IS — Iceland
• SNR — Signal-to-Noise Ratio
• RFQ — Request For Quote
• BELOW — Beneath the deck
• EMP — Electromagnetic Pulse
• ASR — Airport Surveillance Radar
• LEC — Local Exchange Carrier
• BY — Belarus
• ELINT — Electronic Intelligence Satellite
• EMS — Environmental Management Systems
• CPIC — Capital Planning and Investment Control
• CAT — Computer Aided Testing
• DEC — December
• AVG — Average Voltage Gain
• EFTA — European Free Trade Association (Geneva)
• SWIM — System Wide Information Management
• MK — Republic of Macedonia
• ENG — Engine
• MODEM — Modulator-Demodulator
• DRP — Disaster Recovery Plan
• MCE — Management Centre Europe
• APS — Arrival Pilot Station
• EXER — Exercise
• OSI — Open Systems Interconnection (iso Standard)
• LIDO — Lufthansa Integrated Dispatch Operation
• ARINC 542 — Airborne Oscillograph Flight Data Recorder
• MBPS — Megabits per second
• N — North

• EPROM — Erasable Programmable Read-Only Memory
• ARINC 419 — Digital Data System Compendium
• NOR — Notice of Readiness
• DIST — Distance
• LAT — Latitude
• NRL — Naval Research Laboratory
• FD — Flight Director
• ADS-C — Automatic Dependent Surveillance-Contract
• P&I — Protection and Indemnity insurance
• WAC — World Aeronautical Chart
• CCSD — command communications service designator; control communications service designator
• FAC — Facilities
• AVMED — Aviation Medicine
• CONOPS — Concept of Operations
• DOLSP — Dropping Off Last Sea Pilot
• ARINC 561 — Air Transport Inertial Navigation System - INS
• AFA — Association of Flight Attendants
• COBT — Calculated Off Block Time
• CRF — Central Repair Facility
• HUM RES — Human Resources
• LDAP — Lightweight Directory Access Protocol (pronounced Ell-dap)
• XFR — Transfer
• RCM — Requirements Correlation Matrix
• C — Centigrade
• FT — Feet
• 2D — Two-Dimensional
• RTE — Route
• CKD — Completely Knocked Down
• ARINC 429 — Mark 33 Digital Information Transfer System
• AIRNAV — Airports and Navigation Aids Database System
• DAFIF — Digital Aeronautical Flight Information File
• EGA — Enhanced Graphics Adapter
• OPI — Office of Primary Interest
• DEQ — Delivered Ex Quay (shipping)
• BAF — Bunker Adjustment Factor
• CDB — Corporate Database
• CRS — Course
• HWCI — Hardware Configuration Item
• POS — Position
• SCADA — Supervisory Control And Data Aquisition
• AA — Always Afloat
• QUIS — Questionnaire for User Interface Satisfaction
• PABX — private automatic branch exchange (telephone)
• MRC — Monthly Recurring Charge
• WO — Without
• FAR — Federal Aviation Regulation
• ETO — Estimated Time Over
• PCT — Percent
• EW — Eurowings
• CLR — Clear

• IFF — Identification Friend or Foe (radar)
• EAS — Equivalent Airspeed
• FD — Free Discharge
• SNGL — Single
• E — East
• CDL — Configuration Deviation List
• MSA — Minimum Safe Altitude
• MMU — Memory Management Unit
• ETE — Estimated Time En Route
• AFSPS — Arrival First Sea Pilot Station
• DPI — Dots per inch.
• EST — Estimated Starting Time
• AOM — Aircraft Operating Manual
• RMNDR — Reminder
• RDP — Radar Data Processing
• KM — Kilometer (1,000 meters)
• DRAUGHT — Depth to which a ship is immersed in water
• CAT X — Category x Precision Approach
• FAA — Federal Aviation Authority
• PCM — Pulse-Code Modulation
• ARINC 743A — GPS/GLONASS Sensor
• HF — High Frequency
• EFQM — European Foundation for Quality Management's
• CI — China Airlines - Taiwan
• AFB — Air Force Base (USAF)
• EBU — Engine Build Unit
• NPRM — Notice Of Proposed Rule Making
• CN — Change Notice
• ARINC 408A — Air Transport Indicator Cases And Mounting
• L — Left
• TK — Turkish Airlines
• BM — Beam
• CY — Cyprus Airways Ltd
• FO — For Orders
• TOT — Total
• STTR — Small Business Technology Transfer
• LUX — Findel International Airport, Luxembourg-Findel, Luxembourg
• FOUO — For Official Use Only
• BDI — Both Dates Inclusive
• CMC — Central Maintenance Computer
• AT&T CSA — At&t Customer Support Associate
• SEQ — Sequence
• GSE — Ground Support Equipment
• CRM — Crew Resource Management
• ANS — Answer
• GHZ — Gigahertz
• AAIM — Aircraft Autonomous Integrity Monitoring
• NESDIS — National Environmental Satellite, Data, and Information Service
• FMC — Federal Maritime Commission's
• DOS — United States Department of State

• DFDAU — Digital Flight Data Acquisition Unit
• RCU — Remote Control Unit
• PMP — Project Management Plan
• AAAA — Always Accessible Always Afloat
• WG — Working Group
• BIT(E) — Built-ln-Test (Equipment)
• HDLC — High-Level Data Link Control
• AIXM — Aeronautical Information Exchange Model
• IPT — Integrated Product Team
• ADZY — Advisory
• A/C — Aircraft
• ITSM — Information Technology Service Management
• RMS ERROR — Root Mean Square error.
• CDU — Control Display Unit
• ADDS — Aviation Digital Data Service
• SRV — Server
• MSDA — Material Safety Data Sheet
• NTE — Not-To-Exceed
• ATFM — air traffic flow management
• LY — El Al Israel Airlines
• EVM — Earned Value Management
• CPD — Continuous Professional Development
• PRF — Pulse Repetition Frequency
• JCN — Job Control Number
• ADF — Automatic Direction Finder
• DHDWTSBE — Despatch Half Demurrage on Working Time Saved Both Ends
• PAR — Precision Approach Radar
• ARINC 747 — Flight Data Recorder
• DEA — Drug Enforcement Agency
• LOA — Length Overall
• BL — Bale
• LF — Load Factor
• NEPA — National Energy Policy Act of 1992
• OU — Croatia Airlines
• FDOD — CFMU – Flight Data Operations Division
• RSVN — Reservation
• NOV — November
• RNP5 — Required Navigation Performance 5
• CX — Cathay Pacific Airways
• AOCS — Attitude and Orbit Control System
• FRS — Functional Requirements Specifications
• DTED — Digital Terrain Elevation Data (dee-ted)
• ITMRA — Information Technology Management Reform Act (Part of the Clinger-Cohen Act)
• PQP — Project Quality Plan
• ACARS — Aircraft Communications Addressing and Reporting System
• NW — Northwest Airlines
• DDD — Detailed Design Document
• ITF — International Transport Workers' Federation
• HDOP — Horizontal Dilution of Precision
• ATMAC — Air Traffic Management Advisory Committee

• RAIM — Receiver Autonomous Integrity Monitoring
• R — Right
• BOC — Bell Operating Company
• FOT — Free On Truck
• AF — Air France
• MAN — Manual
• PKI — Public Key Infrastructure (cryptography)
• MIRL — Medium Intensity Runway Lights
• ARINC 597 — Aircraft Communications Addressing And Reporting System
• EHF — Extremely High Frequency
• MIT — Massachusetts Institute of Technology (U.S.)
• CW — Clockwise
• NAAQS — National Ambient Air Quality Standards (US)
• IF — Intermediate Frequency
• YD — Yaw Damper
• ERP — Effective Radiated Power
• ISA — International Standard Atmosphere
• ADC — Air Defense Command
• TEMP — Temperature
• AY — Finnair, Oyj - Finland
• MTBCF — Mean Time Between Critical Failures
• LIDAR — Lander Light Detection and Ranging
• HMI — Human Machine Interface
• DHS — Department of Human Services
• IRU — Inertial Reference Unit
• AOM — Aircraft Operations Manual
• ARINC 575 — Mark 3 Subsonic Air Data System
• CONS — consumption
• NACA — National Advisory Committee for Aeronautics
• OTFO — Operations Technical Field Office
• ACT — Active
• REQ — Request
• FOD — Foreign Object Damage
• GFE — Government-Furnished Equipment
• ADCCP — Advanced Data Communications Control Procedures
• ANG — Air National Guard
• TBO — Time Between Overhaul
• CGL — Circling Guidance Lights
• FOFFER — Firm Offer
• ARINC 573 — Aircraft Integrated Data System Mark
• EFMS — Experimental Flight Management System
• FLT — Flight
• AUTOCAD — Automatic Computer Aided Design
• JAN — January
• ASD — Aircraft Situation Display
• AEA — Association of European Airlines
• CAVOK — Ceiling And Visibility OK (Kav-okay)
• LT — Liner Terms
• CW — Carrier Wave
• ATD — Actual Time of Departure

• WOCL — Window of Circadian Low
• TOR — terms of reference (ICAO/FAA)
• CVR — Cockpit Voice Recorder
• OVERBOARD — Over the side or out of the ship
• KE — Korean Airlines
• NFPA — National Fire Protection Association
• RDF — Radio Direction Finder
• TGT — Target
• NASA — National Aeronautics and Space Administration (US)
• AHL — Australian Hold Ladders
• AUG — August
• DOP — Dropping Outward Pilot
• NCS — National Communications System
• VSCF — Variable-Speed Constant Frequency
• DID — direct inward dial
• WO — World Airways, Inc
• A/D — Analog-to-Digital
• IMA — Integrated Modular Avionics
• IFOR — Implementation Force
• W — West
• RNP — Required Navigation Performance
• AEW — Airborne Early Warning
• TDMA — Time Division Multiple Access
• AVAIL — Available
• FSRM — Facility Security Risk Management
• RDIF — Radar Data Interchange Format
• AWB — Air Waybill
• 3D — Three Dimensional
• F — Degrees Fahrenheit
• EIB — European Investment Bank
• ARINC 603 — Airborne Computer Data Loader
• NAVDB — Navigation Data Base
• IN.HG. — inches of mercury
• FEC — Forward Error Correction
• BRK — Break
• ADIRS — Air Data Inertial Reference System
• WPM — speech--words per minute
• AIP — Aeronautical Information Publication
• A02 — Automated Observation With Precipitation Discriminator
• GPRA — Government Performance and Results Act
• DH — Decision Height
• PAPI — Precision Approach Path Indicator (aviation)
• GW — Gross Weight
• NRT — Net Restricted Tonnage
• ACN — Aircraft Classification Number
• EASA — European Aviation Safety Agency
• BR — Eva Airways Corporation
• FCL — Full Container Load
• CPD — Charterers Pay Dues
• CCU — Central Control Unit

• A&E — Architecture and Engineering
• TTY — Teletype Telex Machine
• VAN — Value Added Network
• KBPS — kilobits per second
• ILO — International Labour Organisation
• NOTAM — Notice to Airmen
• CCITT — Comite Consultatif International de Telegraphique et Telephonique (International Telegraph and Telephone Consultative Committee) [now ITU-T]
• LH — Lufthansa German Airlines
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• CEQ — Council on Environmental Quality (U.S.)
• DNRCAOSLONL — Discountless and Non-Returnable Cargo and/or Ship Lost or Not Lost
• ELT — Emergency Locator Transmitter
• MCW — Modulated Continuous Wave
• A/A — Air-to-Air
• CPDLC — Controller Pilot Data Link Communications
• OGC — Open Geospatial Consortium
• TLV — Type-Length-Value
• VSWR — Voltage Standing Wave Ratio
• BWAD — Brackish Water Arrival Draft
• OCT — October
• BOB — Bunker On Board
• ABV — Above
• LZ — Balkan Bulgarian Airlines
• DGNSS — Differential Global Navigation Satellite System
• FREE EXINS — Free of any Extra Insurance
• BRG — Bearing
• BOFFER — Best Offer
• DDS — Digital Data Service
• FACF — Final Approach Course Fix
• FRB — Failure Review Board
• XEU — European Currency Unit
• CPS — characters per second
• ALQDS — All Quadrants
• ARINC 557 — Airborne Voice Recorder
• BL — Blowing (METAR descriptor)
• MDA — Minimum Descent Altitude
• IDS — Intrusion Detection System
• CDI — Course Deviation Indicator
• SN — Brussels Airlines
• MAG — Magnetic
• MDT — Mean Down Time
• NAS — National Airspace System
• AD — airworthiness directives (FAA)
• SHF — Super High Frequency
• HIRO — High Intensity Runway Operation
• DDM — Difference in Depth of Modulation
• MAA — Maximum Authorized Altitude
• ARINC — Aeronautical Radio Incorporated
• ASTERIX — All-purpose Structured Eurocontrol Radar Information Exchange
• FZRA — Freezing Rain (METAR Code)

• EET — Estimated Elapsed Time
• FADEC — Full Authority Digital Engine Control
• FANS — Future Air Navigation System
• SBIR — Small Business Innovation Research
• PHA — Preliminary Hazard Analysis
• EADI — Electronic Attitude Director Indicator
• ECAM — Electronic Centralized Aircraft Monitor
• SDLC — Software development life cycle
• RTOS — Real-Time Operating System
• BROB — Bunkers Remaining on Board
• PPI — Plan Position Indicator
• T — Time
• QPSK — aeronautical quadrature phase shift keying
• OK — Czech Airlines
• V — Volt (measurement)
• MEL — Minimum Equipment List
• EXEC — Execute
• 1 :1 — One-to-one relationship
• GDOP — Geometric Dilution Of Precision
• ARINC 542A — Digital Flight Data Recorder
• AUTOVON — Automatic Voice Network
• Z — Zulu (Greenwich mean time)
• FP — Flight Plan
• BOW — The forward part of a ship
• AFS — Aeronautical Fixed Service
• ARINC 740 — Multiple-Input Cockpit Printer
• SU — Aeroflot Russian Airlines
• MOLOO — More or Less Owners Option
• LLWAS — Low Level Wind Shear Alert System
• UL — Uplink
• AWACS — Airborne Warning And Control System
• DCA — Defensive Counter Air
• BADA — Base of Aircraft Data ; Aircraft performance Data
• CHTRS — Charterers
• DR — Dead Reckoning
• FEIS — Final Environmental impact statement (US)
• FONSI — Finding of no significant impact. See Environmental impact statement (US)
• ARINC 421 — Guidance For Standard Subdivision of ATA Spec 100 Numbering System for Avionics
• MECO — Main Engine Cutoff
• ADCOM — Address Commission
• ID — IDentifier
• OT&E — Operational Test and Evaluation
• CIRM — International Radio Maritime Committee
• RSYD — Release Subject to Your Discretion
• SID — Standard Instrument Departure
• DEM — German mark
• DAF — Deliver At Frontier
• CVSM — Conventional Vertical Separation Minimum
• FZFG — Freezing Fog
• PII — Personally Identifiable Information

• SP — Space
• ARO — Air Traffic Services Reporting Office
• SEP — September
• DOI — United States Department of Interior
• PERF — Performance
• PRKG — Parking
• SSALS — Simplified Short Approach Lighting Systerm
• AVOL — aerodrome visibility operational level
• ARINC 566 — Airborne VHF Communications Transceiver And Mark 1 VHF SATCOM System
• CLD — Cloud
• FEP — Front End Processor
• ISMLS — Interim Standard Microwave Landing System
• A&P — Airframe & Powerplant
• DEIS — Draft Environmental Impact Statement (US)
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• AFSS — Automated Flight Service Station
• HGT — Height
• ARINC 572 — Mark 2 Air Traffic Control Transponder
• FQR — Formal Qualification Review
• SH — Showers
• ARINC 601 — Control/Display Interfaces
• FRT — Freight
• C — Close
• DCE — Data Communication Equipment
• AOB — Air Order of Battle
• HIRTA — High Intensity Radio Transmission Area
• HUD — Head-Up Display
• DIR — Directory
• ALSF2 — ALS with Sequenced Flashers II
• EDF — Electricité de France
• AD — Aerodrome
• SARPS — Standards and Recommended Practices
• AFFSC (E) — Air Forces Flight Safety Committee (Europe)
• MDO — Marine Diesel Oil
• CAASA — Commercial Aviation Association of Southern Africa
• TYPH — Typhoon
• SAW — Surface Acoustic Wave
• SS 30 — 30 Minutes after Sunset
• INS — Inertial Navigation System
• CBI — Computer Based Instruction
• CDRL — Contracts Data Requirements List
• NAS — National Aircraft Standard
• ALP — Airport Layout Plan
• LW — Low Water
• ARTCC — Air Route Traffic Control Center
• RM — Risk Management
• FL — Flight Level
• W — White
• GOES — Geostationary Operational Environmental Satellite
• CUST — Customs

• GML — Geography Markup Language
• ACCT — Accounting Records
• AC — Altocumulus
• PFD — Primary Flight Display
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• AIDC — Air traffic control Inter-Facility Ground Data Communications
• ARINC 571 — Inertial Reference System
• NPS — Navigation Performance Scales
• CTA/FIR — Control Area/Flight Information Region
• MTTRP — Mean Time to repair product
• A/C — Aircraft Commander
• CSD — Constant Speed Drive
• AOC — Airline Operation Control
• DA — Disbursement Account
• HIWAS — Hazardous Inflight Weather Advisory Service
• NI — Network Interface
• WP — Work Package
• GS — Ground Speed
• FZDZ — Freezing Drizzle
• ODALS — Omnidirectional Approach Lighting Systems
• DBS — Direct Broadcast Satellite
• FIS — Flight Information Service
• HMI — Hazardously Misleading Information
• VMC — visual meteorological conditions
• EIA — Extended Interaction Amplifier
• DETRESFA — distress phase (lCAO)
• ULR — Ultra Long Range
• FLAS — Flight Level Allocation Scheme
• ANSP — Air Navigation Service Provider
• BENDS — Both Ends (shipping)
• LOFT — Line-Oriented Flight Training
• MLW — Maximum Landing Weight
• PA — Pan American Airways
• AP — Airport
• ARINC 750 — VHF Data Radio
• SV — Space Vehicle
• ADIZ — Air Defense Identification Zone
• ALERFA — alert phase
• ACM — Airspace Control Measures
• HVAC — Heating, Ventilating, And Air Conditioning
• NAABSA — Not Always Afloat But Safely Aground
• CD — Candela
• AIRPROX — The code word used in air traffic incident report to designate aircraft proximity
• CFAR — Constant False Alarm Rate
• ARINC 591 — Quick Access Recorder For Aids System
• ECAC — European Civil Aviation Conference
• FF — Fuel Flow
• AACO — Arab Air Carriers Organisation
• GA — General Aviation
• EPCU — Electrical Power Control Unit

• IPV6 — Internet Protocol Version 6
• MRA — Minimum Reception Altitude
• LGTD — Lighted
• SAC — Strategic Air Command
• ATE — Automatic Test Engineer
• CAP — Combat Air Patrol
• POL STAT — Policy Statement
• RFC — Request For Change
• A/P — Autopilot
• CAT — Clear Air Turbulence
• RNP-10 — Required Navigation Performance
• FSS — Flight Service Station
• GCA — Ground-controlled approach
• B — Blue
• COACP — Contract Of Affreightment Charter Party
• VMIN — Basic Clean Aircraft Minimum CAS
• AVBL — available
• TCU — Towering Cumulus
• AQP — Advanced Qualification Program
• ATLA — Air Transport Licensing Authority
• ND — Navigation Display
• VGND — Ground Velocity
• 8.33 STATE — A State initially implementing 8.33 kHz channel spacing
• SSEC — Static Source Error Correction
• TAS — True Airspeed
• PROC — Procedure
• NORDO — No-Radio
• FLTCK — Flight Check
• HO — Hold Over
• RPV — Remotely Piloted Vehicle
• NRZ — Non-Return-To-Zero
• ADV — Advise
• DNIC — Data Network Identification Code
• HEX — Hexadecimal (base 16)
• 4D FMS — 4D Flight Management System
• FIOS — Free In/Out Stowed
• ATCSCC — Air Traffic Control System Command Center
• EEI — Essential Elements of Information
• BT — berth terms
• FMC — Flight Management Computer
• ILS — Instituteument Landing System
• VSBY — Visibility
• IG — Inspector General (HHS)
• OL — Operating Location
• THR — Thrust
• HZ — Haze (METAR Code)
• JPDA — Joint Probabilistic Data Association
• JD TF — Job Description Task Force
• ARINC 559A — Mark 2 Airborne HF SSB/AM System
• SITA — Société Internationale de Télécommunications Aéronautiques

• BCA — Benefit/Cost Analysis
• LGT — Light
• 5LNC — Five Letter Name Code
• CROB — Cargo Remaining on Board
• MMEL — Master Minimum Equipment List
• IMC — Instrument Meteorological Conditions
• TCA — Terminal Control Area
• ARINC 757 — Cockpit Voice Recorder
• OWS — Owners
• IISLS — Improved Interrogation Side Lobe Suppression
• ATUTC — Actual Times Used to Count
• FFA — Functional Failure Analysis
• ARINC 606 — Guidance For Electrostatic Sensitive Device Utilisation & Protection, Sup. 1
• ACU — Antenna Control Unit
• GBAS — Ground Based Augmentation System
• BA — Braking Action
• FOQ — Free On Quay
• NASTEP — National Airspace System Technical Evaluation Program
• CCIR — International Radio Consultative Committee (French Acronym)
• FYG — For Your Guidance
• SIP — State Implementation Plan
• NTZ — No Transgression Zone
• FRA — Federal Railroad Administration
• CDT — Command Delivery Time
• IRS — Inertial Reference System
• FST — First
• ILSP — Integrated Logistics Support Plan/Program
• CAB — Civil Aeronautics Board
• CART — Classification And Regression Tree (method In Statistical Analysis)
• ATC-HMI — Air Traffic Control Human Machine Interface
• ARTS — Automated Radar Terminal System
• FPL — Full Performance Level
• SSR — Software Specification Review
• CTR — Container Fitted
• CR — Current Rate
• ACI — Airports Council International
• TDD — Time Division Duplex
• DEG — Degree
• GS — Glide Slope
• J2EE — Java 2 Enterprise Edition
• MVFR — Marginal Visual Flight Rules
• MCT — Maximum Continuous Thrust
• AITS — Automated Inventory Tracking System
• CARSR — Common Air Route Surveillance Radar
• LT — Long Ton
• CFDS — Centralised Fault Display System
• NCAR — National Center for Atmospheric Research (US)
• 1 :M — One-to-Many relationship
• LIM — Limit
• ARINC 744 — Full Format Printer

• VDF — Very high frequency Direction Finding station
• ADZD — Advised
• COTP — Connection-Oriented Transport Protocol
• PF — Pilot Flying
• UT — Universal Time
• RIB — Routing Information Base
• CDM — Collaborative Decision Making
• EQPT — Equipment
• FIW — Free in wagon
• DA — Decision Altitude
• ALS — approach lighting system
• OP — Operational
• ARINC 596 — Mark 2 Airborne SELCAL System
• NSAP — Network Service Access Point
• DEM — Demurrage
• WGS 84 — World Geodetic System 1984
• NAT NAM — North Atlantic / North America
• NPR — National Performance Review (office)
• ARAG — Amsterdam Rotterdam Antwerp Gent Range
• LATA — Local Access and Transport Area
• PAMPLAY — PAM rePLAY system
• ALTRV — Altitude Reservation
• LSA — Lysergic Acid Amide
• EXTD — Extend
• SVID — System V Interface Definition
• IFR — Instrument Flight Rules
• CNL — Cancel
• VCCS — Voice Communication and Control System
• CRZ — Cruise
• VCO — Voltage Controlled Oscillator (Oscillation)
• NSSL — National Severe Storms Laboratory
• HDG — Heading
• MOD — Modified
• LRNS — Long-Range Navigation System
• ASI — Air Speed Indicator
• MSSR — Monopulse Secondary Surveillance Radar
• ASDE-X — Airport Surface Detection Equipment - X (frequency) band
• AOV — Air Traffic Safety Oversight Service
• ARPA — Advanced Research Project Agency's
• V — Velocity
• GRT — Gross Registered Tonnage/Tons
• ARINC 579 — Airborne VOR Receiver
• JUL — July
• HG — Mercury (Latin Hydrargyrum)
• DPSK — Differential Phase Shift Keying
• SSR MODE S — Selective Address SSR
• CDTI — Cockpit display of traffic information
• PFN — Pulse-Forming-Network
• TBS — To Be Supplied(by government)
• AMA — Area Minimum Altitude

• BSC — Binary Synchronous Communication
• ANA — All Nippon Airways
• QUAD — Quadrant
• SGS 85 — Sovietic Geodetic System
• AMT — Aviation Maintenance Technician
• ANTHAM — Antwerp-Hamburg Range
• AT — Air Traffic
• BASE AM — Base Arrival Manager
• AUSEP — Australian RNAV Separation Standards
• RMP — Radio Management Panel
• ACNZ — Airways Corporation of New Zealand Ltd
• HOV — High Occupancy Vehicle
• MM — Middle Marker
• SUA — Special-Use Airspace
• ARINC 404A — Air Transport Equipment Cases And Racking
• EST — Estimated Ship Time
• DBE — Disadvantaged Business Enterprise
• MTBR — Mean Time Between Replacement
• PJMM — Project Management Methodology
• OO — Owners Option
• LCN — Load Classification Number
• SLEP — Service Life Extension Program
• FIR — Flight Information Region
• ASYNC — Asynchronous
• ACCID — Notification of an aircraft accident
• AFCAC — African Civil Aviation Commission
• TCAS — Traffic Collision Avoidance System
• NEC — National Electric Code
• WTSPT — Waterspout
• HAT — Height Above Touchdown
• HALO — High Altitude, Low Opening (skydiving term)
• PSN — Packet Switched Network
• CDT — Controlled Departure Time
• JAN — January
• MNM — Minimum
• BKN — Broken Sky (METAR Code)
• LTOG — Long Term Objectives Groups
• LORAN — Long-Range Aid to Navigation
• CST — Centistoke
• DEA — Data Exchange Agreement
• RAD — Radio
• CAS — Calibrated Air Speed
• FSK — Frequency Shift Keying
• FA — Final Approach
• JMCT — Job Management Consultative Team [job analysis]
• PREV — Previous
• ATZ — Aerodrome Traffic Zone
• NOSIG — No Significant Change
• ELVENT — Electric Ventilation
• ADF — Automatic Direction Finding

• VTS — Vessel Traffic Service
• BYD — Beyond
• EFIS — Electronic Flight Information System
• RTLS — Return To Launch Site
• ODS — Operational Data Store (knowledge management)
• ALT HOLD — Altitude Hold Mode
• AIRAC — Aeronautical Information Regulation and Control
• MCA — Minimum Crossing Altitude
• ALSF — Approach Lighting System With Sequenced Flashing Lights
• AT — Air Transport
• FOQA — Flight Operations Quality Assurance Programs
• PUP — Principal User Processor (NEXRAD)
• NR. — Number
• GCU — Generator Control Unit
• RAPPI — Random Access Plan-Position Indicator
• FMGC — Flight Management Guidance Computer
• ATSAP — Air Traffic Safety Action Program
• ADVCTN — Advection
• IU — If Used
• LIFR — Low Instrument Flight Rules
• SUP — Supervisor
• SUMI — Software Usability Measurement Inventory
• DITCO — Defense Information Technology Contracting Office (formerly DECCO)
• TMU — Traffic Management Unit
• AACO — Arab Air Carriers Organization
• TSU — Technical Support Unit
• CNCL — Cancel
• DEL — Delete
• GUI — Graphic-User Interface
• IF — Intermediate Fix
• LDI — Landing Direction Indicator
• FHA — Functional Hazard Analysis
• AFIL — Air Filed Flight Plan
• HSI — Horizontal Situation Indicator
• ALSF1 — ALS with Sequenced Flashers I
• COV — Cover
• TMA — Traffic Management Advisor
• AAA — Amended meteorological message
• FREQ — Frequency
• FDR — Flight Data Recorder
• CAS — Close Air Support
• CMIP — Common Management Information Protocol (ATM)
• AKARD — Available Knowledge And required system Research and Development
• WHO — World Health Organisation
• WINDR — Wind Direction
• A/S — Alongside
• ARINC 745 — Automatic Dependent Surveillance, Supplement 1
• ARINC 306 — Guidance For Designers Of Aircraft-Electronic Installations
• LVL CHG — Level Change
• NIMA — National Imagery and Mapping Agency (became National Geospatial-Intelligence Agency|NGA)

• FPM — Feet Per Minute
• AILS — Automatic Instrument Landing System
• ATSU — Air Traffic Services Unit
• ACH — Air traffic control Flight Plan Change
• ADA — Advisory Area
• AODR — Authorizing Official Designated Representative
• FEW — Few
• NP — Propeller speed
• PIREP — Pilot (weather) Report
• BIM — Building Information Model
• JAR-OPS — Joint Airworthiness Requirements Operations
• ADVY — Advisory
• M — Manual
• SSR — secondary surveillance radar (ICAO/FAA)
• VASIS — Visual Approach Slope Indicator System
• ABAS — Aircraft-based Augmentation System
• AAOSA — Always Afloat or Safe Aground
• LAAS — Local Area Augmentation System
• ARINC 566A — Mark 3 VHF Communications Transceiver
• ADREP — Aircraft Accident/Incident Data Reporting System
• IAO — In And Out
• CON — Continuous
• FRG — Federal Republic of Germany's
• DES — Descend
• CIE — International Commission on Illumination
• CATX — Categorical Exclusion
• RWY — Runway
• FTI — FAA Telecommunications Infrastructure
• SSR MODE S WG — Secondary Surveillance Radar Mode Selective WG
• SARSAT — Search and Rescue Satellite
• MPO — Metropolitan Planning Organization
• MCP — Mode Control Panel
• SATCAS — Selenia Air Traffic Control Automated System
• APRT — Airport
• CPS — Central Processing System
• STAR — Standard Terminal Arrival Route
• LON — Longitude
• ARINC 609 — Design Guidance For Aircraft Electrical Power Systems
• CLC — Course Line Computer
• RSLS — Receiver Side Lobe Suppression
• JTSO — Joint Technical Standard Order
• CFI — Certified Flight Instructor
• ACAIS — Air Carrier Activity Information System
• ARR — Arrive
• C&A — Certification and Accreditation
• DL — Downlink Message
• FEB — February
• DIP — Drop and Insert Point
• HX — No Specific working hours
• TM — Traffic Management

• TBN — To Be Notified
• DEP — Depart
• LDG — Landing (aviation)
• C/N — Carrier-To-Noise Ratio
• ACSE — Application Control Service Element
• DP — Dewpoint Temperatue
• APA — Allied Pilots Association
• IFPZ — IFPS Zone
• TURB — Turbulence
• ATO — Air Traffic Organization
• FR — From
• ICASM — International Congress of Aviation and Space Medicine
• LRU — Line Replacement Unit
• FILO — Free In/Liner Out
• AAS — advanced automation system (FAA)
• PFI — Private Finance Initiative
• V&V — Validation & Verification
• JUN — June
• NMC — National Meteorological Center (US)
• DIA — Denver International Airport
• BBB — Before Breaking Bulk
• ALPAP — Air Line Pilots Association of the Philippines
• ANC — Air Navigation Commission
• GDP — Ground Delay Program
• FSM — Flight Schedule Monitor
• RESMA — Requirements for Emergency and Safety Airborne Equipment
• ACAMS — Aircraft Condition Analysis and Management System
• DET — Detention
• TDOP — Time Dilution of Precision
• CPE — Customer Premise Equipment
• NL — Engine Revolutions per Minute
• RATCC — Radar Air Traffic Control Center
• SSB — Single Side Band
• RSTD — Restricted
• TIAS — True Indicated Airspeed
• DEM — Digital Elevation Model
• AEFMP — Algeria, Spain, France, Maroc, Portugal Project
• ATIS-B — Automatic Terminal Information Service - Broadcast
• ACCS — Air Command and Control System
• RNAV — Random Navigation Area Navigation
• OCC — Operations control center
• MOCA — Minimum Obstruction Clearance Altitude
• DLP — Data Link Processor
• ARINC 574 — Passenger Announcement, Entertainment & Service Multiplex System
• PROF — Profile
• CAEM — Commission for Aeronautical Meteorology (WMO)
• AZM — Azimuth
• IMDG — International Maritime Dangerous Goods
• ATMAS — Air Traffic Management Automated System
• MNS — Mission Needs Statement

• IRM — information resource management
• ASMA — Aerospace Medical Association
• SSAP — Source Service Access Point
• TODAH — Take Off distance available, helicopter
• DZ — Drizzle
• NDI — Nondestructive Inspection
• LHR — London Heathrow Airport, London, United Kingdom
• AGHME — Aircraft Geometric Height Measurement Element
• UTC — Universal Time Coordinate
• DTM — Digital Terrain Model
• CD-ROM — Compact Disk - Read Only Memory
• AFISO — Aerodrome Flight Information Service Officer
• MOC — Memorandum Of Cooperation
• EV — every
• MT — Mertic Tonne
• IOT&E — Independent Operational Test and Evaluation
• AAIB — Air Accident Investigation Branch
• FIOST — Free In/Out and Trimmed
• AST — FAA Office of Commercial Space Transportation
• TROP — Tropopause
• FCA — Free Carrier Alongside
• OBO — Ore/Bulk/Oil vessel
• DETR — Department of the Environment, Transport and the Regions
• CIP — Capital Investment Plan
• MN — Magnetic North
• ADS-R — Automatic Dependent Surveillance-Report
• AMSS — Aeronautical Mobile Satellite Service
• DES — Descent
• ECMT — European Conference of Ministers of Transport
• WMSCR — Weather Message Switching Center Replacement
• RDSIM — Runway Delay Simulation Model
• PRORES — Problem Resolution
• RUC — Rapid Update Cycle
• MTD — Moving Target Detection
• EGPWS — Enhanced Ground-Proximity Warning System
• ATIS — Automatic Terminal Information Service
• ATS — Air Traffic Services
• AOC — Aerodrome Obstacle Chart
• CRAM — Conditional Route Availability Message
• AARA — Amsterdam-Antwerp-Rotterdam Area
• AAP — Advanced Automation Program
• ADZ — Advise
• ASN — Advance Shipment Notice
• FDPS — Flight Data Processing System
• FIOT — Free In/Out and Trimmed
• STA — Scheduled Time of Arrival
• AP — Autopilot
• PTUL — Pilots Trade Union of Latvia
• AACC — Airport Associations Co-ordinating Council
• COB — Closing of Business

• SMGC — Surface Movement Guidance and Control
• CEC — Commission of the European Communities ;
• ASPH — Asphalt
• I — Italy
• ARINC 600 — Air Transport Avionics Equipment Interfaces
• ALCE — Airlift Control Element
• ADS-B — Automatic Dependent Surveillance-Broadcast
• BS — Bootstrap Service
• OAT — Outside Air Temperature
• AOR-E — Atlantic Ocean Region East
• ATLC — Atlantic
• BSS — Basis
• ADS — automatic dependent surveillance
• MOTNE — Meteorological Operational Telecommunication Network in Europe
• SGI — Silicon Graphics Incorporated
• DOC — Document
• LOM — Compass Locator at the Outer Marker
• ARINC 578 — Airborne ILS Receiver
• ARSR — Air Route Surveillance Radar
• SNPA — Subnetwork Point of Attachment
• PROM — Programmable Read Only Memory (chip)
• FRZN — Frozen
• CASA — Civil Aviation Safety Authority
• WAAS — Wide Area Augmentation System
• IMG — Immigration
• BUECE — Back-up Emergency Communications Equipment
• VASI — Visual Approach Slope Indicator
• ARINC 608 — Standard Modular Avionics Repair And Test System
• TOP — Cloud Top
• GNSS — Global Navigation Satellite System
• FIO — Free In/Out
• DBRITE — Digital Bright Radar Indicator Tower Equipment
• CRDA — Converging Runway Display Aid
• QAR — Quick Access Recorder
• RDPS — Radar Data Processing System
• UIR — Upper Information Region
• AOPA — Aircraft Owners and Pilots Association
• PMS — Performance Management System
• CNDN — Canadian
• ACAS — Airborne Collision Avoidance System
• AIMS — Airplane Information Management System
• MTI — Moving Target Indicator
• ELBA — Emergency Locator Beacon Aircraft
• UAB — Until Advised By
• DESP — Despatch
• APM — approach path monitor
• ATAG — Air Transport Action Group
• ATCO — Air Taxi Commercial Operator
• FSDO — Flight Standards District Office
• OCA — Oceanic Control Area

• CRM — Cockpit Resource Management
• BI — Both inclusive
• AWOG — All Weather Operations Group
• DRFT — Drift
• ACF — Area Control Facility
• ETVCT — En Route Training Voice Communication Tool
• ITWS — Integrated Terminal Weather System
• AIRS — Advanced Infrared Sounder
• LO — Low
• ATCRB — Air Traffic Control Radar Beacon
• SDR — Service Difficulty Report
• ECS — Environmental Control System (Subsystem)
• ADLY — Arrival Delay
• MLDT — Mean Logistic Down Time
• RTCA — Radio Technical Commission for Aeronautics
• FAP — Final Approach Point
• HDD — Head Down Display
• JURG — Joint Users Requirements Group
• AFDS — Autopilot Flight Director System
• AFL — Actual Flight Level
• AVI — Audio/Video Interleaved Format
• DALR — Digital Audio Legal Recorder
• UAT — Universal Access Transceiver
• FIXM — Flight Information Exchange Model
• DAPS — Days all Purposes
• IMPR — Improve
• AOC — Aircraft Operations Centre
• BN — Booking Note
• STOL — Short Takeoff And Landing
• PASTUS — Past Us
• FRQ — Frequent
• SESAR — Single European Sky ATM Research
• DIS — Distance
• SM — Statute Mile
• SOPA — Standard Operating Procedure Amplified
• PHINOM — Nominal Bank Angle
• TMC — Thrust Management Computer
• AS — Altostratus
• HW — High Water
• AECB — Atomic Energy Control Board
• SDIS — Switched Digital Integrated Service
• QTG — Qualification Test Guide
• PABX — Private Automated Branch EXchange (company Phone System)
• FBO — Fixed-Based Operator
• MUD — Mud Log
• TDWR — Terminal Doppler Weather Radar
• HAPI — Helicopter Approach Path Indicator
• BSU — Beam Steering Unit
• CAAC — Civil Aviation Administration of China
• LASKA — Learning And Skills Acquisition

• DTS — Dedicated Transmission Service
• ALRS — Alerting Service
• WFTU — World Federation of Trade Unions
• XTRK — Cross Track Error
• STAB — Stabilizer
• ATFMS — Air Traffic Flow Management System
• FCC — Flight Control Computer
• LCTD — Located
• ASLAR — Aircraft Surge Launch And Recovery
• TWIP — Terminal Weather Information for Pilots
• FIT — Free In Trimmed
• BRL — Building Restriction Line
• 4D — Four-Dimensional
• AWOS — Automated Weather Observing System
• CRAF — Civil Reserve Air Fleet
• ARINC 413A — Guidance For Aircraft Power Utilisation And Transient Protection
• XAP — Crossing Alternate Proposal Message
• F&E — Facilities and Equipment
• STWL — Stopway Lights
• EFAS — En Route Flight Advisory Service
• CRN — Crane
• FDIO — Flight Data Input/Output
• ARINC 605 — Users Guide For ARINC 616 Avionics Subset Of ATLAS Language
• AFIZ — Aerodrome Flight information Zone
• TCP / IP — Transmission Control Protocol / Internet Protocol
• SGL — Signal
• KCAS — Knots Calibrated Airspeed
• 8.33 CP — 8.33 Contact Person
• AAIB — Air Accidents Investigation Branch
• SVCBL — Serviceable
• COP — Custom of Port
• BRA — Bearing, Range and Altitude
• A/I — Accident/Incident
• DEST — Destination
• M. — meter
• CEW — Civil Engineering Works
• RAD — Radial
• FTS — Federal Telecommunications System
• AOA — Airport Operations Area
• IVSR — Interim Voice Switch Replacement Program
• ACID — Aircraft Identification
• FTE — Flight Technical Error
• RMK — Remark
• PFA — Probability of False Alarm
• DNSTRM — Downstream
• INIT — Initial
• IRD — Initial Requirements Document
• IMAL — Integrity Monitoring Alarm Limit
• 4D-NAV — 4D Navigation
• DSPY — Display

• ALTM — Altimeter
• SUBJ — Subject
• QAE — Quality Assurance Evaluator
• DOTCC — Department of Transportation Computer Center
• SASKI — Name of an ATS Route reporting point
• ESDI — Enhanced Small-Device Interface
• SDP — Service Delivery Point
• LNAV — Lateral Navigation
• NSSFC — National Severe Storms Forecast Center
• ALPA — Japan Air Line Pilots Association of Japan
• OPT — Optimum
• EOF — Emergency Operating Facility
• DF — Direction Finding or Finder
• PMS — Pavement Management System
• CFIT — Controlled Flight into Terrain
• AIC — Aeronautical Information Circular
• PRN — Pseudo-Random Noise
• IUHTAUTC — If Used, Half Time Actually To Count
• LORAN — Long Range Navigational System
• CFWU — Central Flow Weather Unit
• ECG — En Route Communications Gateway
• AMSSP — Aeronautical Mobile Satellite Service Panel
• PDC — Pre-Departure Clearance
• AT&T ASDC — At&t Agency Service Delivery Center
• ATAF — Allied Tactical Air Force (NATO)
• DF — Direction Finder (Finding)
• JTIDS — Joint Tactical Information Distribution System (djay-tidz)
• ST&E — Security Test and Evaluations
• ASPW — Any Safe Port in the World
• BRF — Brief
• RSR — en-Route Surveillance Radar
• FEU — Forty-Foot Equivalent Unit
• QDR — Reciprocal Magnetic Bearing
• AFIS — Airport Flight Information Service
• SATSAR — Satellite-aided Search And Rescue
• ASCP — Aviation System Capacity Plan
• RAPPI — Radar Access Plan Position
• RPI — Real Property Inventory
• CTAF — Common Traffic Advisory Frequency
• ASCII — American Standard Code for Interface and Interchange
• ABOVE DECK — On the deck
• FACC — Feature and Attribute Coding Catalogue
• CBFT — Cubic Feet
• A01 — Automated Observation Without Precipitation Discriminator
• ATCT — Airport Traffic Control Tower
• ACL — Altimeter Check Location
• GLOSS — Global Sea Level Observing System (of IOC)
• VCMAX — Active Maximum Control Speed
• ATTIS — AT&T Information Systems
• NRH — No Reply Heard

• ACC-PC — ACC Planning Controller
• AIMS — Aircraft Integrated Monitoring System
• CNVTV — Convective
• COT — At the Coast
• METAR — Meteorological Terminal Aviation Routine Weather Report
• MAUW — Maximum All Up Weight
• AEWPD — Adapted EATM Work Programme Document
• IFRB — International Frequency Registration Board of the International Telecommunication Union
• PSS — Packet Switched Service
• ABM — Abeam
• IVSI — Instantaneous Vertical Speed Indicator
• BTN — Between
• ASDA — Accelerate-Stop Distance Available
• GRI — General Rate Increase
• FSF IAS — Flight Safety Foundation International Aviation Safety
• SVVP — Software Verification and Validation Plan
• DME/P — Precision Distance Measuring Equipment
• BASE — Cloud base
• MAR — March
• ODIF — Open Document Interchange Format
• ACR — Atlantic Co-ordinated Route
• AAPA — Association of Asia Pacific Airlines
• LTP — Landing Threshold Point
• RD — Requirements Document
• SEA/TAC — Seattle/Tacoma International Airport
• ECA — European Cockpit Association
• SSTS — Space Surveillance and Tracking System
• EGT — Exhaust Gas Temperature
• BSS — Best Signal Selection
• B&H — Bosnia & Herzegovina
• OTV — Orbital Transfer Vehicle
• PELA — Proficiency test in English Language for ATCOs
• ARINC 414 — General Guidance For Equipment And Installation Engineers
• IFPZ — Integrated Initial Flight Plan Processing System Zone
• ARINC 415 — Operation/Technical Guidelines On Failure Warning and Functional Test
• DRK — Derrick
• CDV — Compressed Digital Video
• A/N — Arrival Notice
• IMPACT — Information Market Policy Actions
• FI — Flight Instructor
• SHAPE — Supreme Headquarters Allied Powers Europe (NATO)
• AC — Advisory Circular
• ASR-WSP — Airport Surveillance Radar-Weather System Processor
• OFZ — Obstacle Free Zone
• NADA — NADIN Concentrator
• DESC — Descending
• TO EPR — Takeoff Engine Pressure Ratio
• PROB — probability
• XMT — Excluding
• AVHRR — Advanced Very High-Resolution Radiometer

• API — FAA Office of International Aviation
• SAT — Static Air Temperature
• LOF — Lloyds Open Form
• AJR — System Operations Services, Air Traffic Organization
• CWY — Clearway
• E M — signalling
• FAC — Fast as can
• ARFF — Aircraft Rescue and Fire Fighting
• ACCC — Australian Competition Consumer Commission
• SURVITE — Surveillance Integrated Tested for EATMS
• VRB — Variable
• CSIS — Centralized Storm Information System
• CFDS — Central Flight Data Suite
• PVD — Plan View Display
• CBM — Cubic Metres
• AFSFO — AFS Field Office
• SCAT-1 APPROACH — Special Category 1 Approach
• TRU — True
• QDM — Magnetic Heading
• AOC — Aircraft Operating Company
• FIDS — Flight Information Display System
• ALRS — Approach Lighting System
• AUTONAV — Auto-Navigation
• CDA — Continuous Descent Approach
• A/A — Air/Air
• AFIS — Aerodrome Flight Information Service
• ARP — Aerodrome Reference Point
• PAWES — performance assessment and workload evaluation
• LCL — Less Container Loaded
• ACSA — Allied Communications Security Agency
• ARINC 742 — Design Guidance For Windshear Warning and Guidance Equipment
• FDP — Flight Data Processing
• A/H — Altitude/Height
• PMA — Parts Manufacturer Approval
• AATF — Airworthiness Assurance Task Force
• AMASS — Airport Movement Area Safety System
• MDD — Meteorological Data Distribution
• RMI — Radio Magnetic Indicator
• AACI — Airports Association Council International
• CRT — Cargo Retention Clauses
• VNO — Maximum structural cruising speed
• ICAO — International Civil Aviation Organisation
• RCH — Reach
• ARF — Airport Reservation Function
• IA — Inspection Authorization
• GA — General Average
• GEO — Geographic
• DGELG — Dangerous Goods European Advisory Group
• FOD — Foreign Object Debris
• AIDS TO NAVIGATION — Artificial objects to supplement natural landmarks indicating safe and unsafe waters

• FARAWAY — Fusion of Radar and ADS data through two WAY data link
• YOYO — Only Y Available
• QF — Quality Factor
• FSP — Flight Strip Printer
• AOC — Airline Operational Control
• SMT — station management (protocol)
• ES&H — Environmental Safety And Health
• ODAL — Omnidirectional Approach Lighting System
• XNG — Crossing
• TIS-B — Traffic Information Service Broadcast
• PBD — Place Bearing/Distance
• ARINC 594 — Ground Proximity Warning System
• FLM — Front Line Manager
• MODIS — moderate-resolution imaging spectrometer (NASA/GSFC)
• TSNT — Transient
• HDG SEL — Heading Select
• GNCN — GENERAL CONDITIONS
• UHF — Ultrahigh Frequency
• ADSP — Automatic Dependent Surveillance Panel
• FG — Fog Gun
• AEV — Annual Equivalent Value
• ARINC 528 — Airborne Tape Recorder
• MEA — Minimum Enroute Altitude
• ALF — Aloft
• BTH (R) — Beyond the Horizon (Radar)
• DVD — Dual View Display
• ISLS — Interrogation Side Lobe Suppression
• ARINC 746 — Cabin Communications System, Supplement
• AMS — Acquisition Management System
• ELD — Electrical Load Database
• CACRC — Commercial Aircraft Composite Repair Committee
• ADIC — ATS Interfacility Data Communications
• EB — Eastbound
• ACDO — Air Carrier District Office
• LRCO — Limited Remote Communications Outlet
• RBP — Radar Bypass Processor
• XPNDR — Transponder
• CWBS — Contract Work Breakdown Structure
• GEADGE — German Air Defense Ground Environment
• WSO — Weather Service Office
• CALS — Computer-aided Acquisition and Logistic Support
• FWAD — Fresh Water Arrival Draft
• ATCO — Air Traffic Controllers Organization
• HI FI SIM — High-Fidelity Simulator
• ATCCC — Air Traffic Control Command Center
• MTF — Modulation transfer function.
• ONC — Operational Navigation Chart
• TLOF — Touchdown and Lift-off Area
• 3D — Palair Macedonian
• AAME — Association of Aviation Medical Examiners

• APA(CV) — Air Line Pilots Association (Cape Verde)
• BASE AMD — Base Arrival Manager Display
• AO — Aircraft Operator
• WRNG — Warning
• ARMATS — State Closed Joint-Stock Company of Armenian Air Traffic Services
• TLS — Target Level of Safety
• CAVOK — Clouds and Visibility OK
• DGAC — Direction Générale de l’Aviation Civile
• ARINC 576 — Mark 4 Subsonic Air Data System
• ERR — Error message
• AMVER — Automated Mutual-Assistance Vessel Rescue system
• ADA — Air Defense Area
• DMN — Data Multiplexing Network
• ATDS — Airborne Tactical Data Systems (USN)
• DMU — Data Management Unit
• EIU — Even If Used
• ANCA — Airport Noise and Capacity Act
• ARINC 602 — Test Equipment Guidance
• NGA — National Geospatial-Intelligence Agency (formerly National Imagery and Mapping Agency; US government)
• THR HOLD — Throttle Hold
• ITU WARC-95 — International Telecommunication Union World Radio Conference
• M/V — Merchant Vessel
• BAA — British Airport Authority
• WMO — World Meteorological Organisation
• NCB — National Cargo Bureau
• SES — Single European Sky
• EFB — Electronic Flight Bag
• ECAC AREA — European Civil Aviation Conference Area
• ESRI — Environmental Systems Research Institute (developer of geographic information systems (GIS) software, Redlands, California)
• NSW — No Significant Weather
• B/C — Benefit/Cost
• ACAA — Air Carrier Association of America
• DADS — Digital Aeronautical Database System
• KT — Knots
• CWS — Control Wheel Steering
• PMS — Program Management System
• DPTH — Depth
• FPA — Focal Plane Array
• VNAV — Vertical Navigation
• TBC — The Boeing Company
• RP — Restoration Priority
• OMI — Organisation Maritime Internationale (French: International Maritime Organization; UN)
• AIR — Aircraft Certification Service
• ADES — Aerodrome of Destination
• MNOP — Maximum Normal Operating Pressure
• ALPA-FYROM — Air Line Pilots Association of The Former Yugoslav Republic of Macedonia
• REIL — Runway End Identification Light
• ABDIS — Automated Data Interchange System Service
• EHSI — Electronic Horizontal Situation Indicator
• RTO — Rejected Take-Off

• ECPIC — Electronic Capital Planning Investment Control
• ASPENN RPG — Aeronautical Fixed Service Planning Study EUR/NAM/NAT Regional Planning Group
• ITIRS — International Terrestrial Reference System
• EATCHIP — European Air Traffic Control Harmonisation and Integration Programme
• AFMS — Automatic Flight Management System
• MDA/H — Minimum Descent Altitude/Height
• DPNG — Deepening
• FIX — position in space usually on aircraft�s flight plan
• GLD — Glider
• A&F — IFALPA Administration & Finance Committee
• ARAC — Aviation Rulemaking Advisory Committee (FAA)
• DA — Descent Advisor
• SA — System Administrator
• BM — Beam, Maximum
• SITA — Société Internationale Télécommunique Aéronautique
• DABS — Discrete Address Beacon System
• FPAP — Flight Path Alignment Point
• F18 — Field 18 of Flight Plan
• MHA — Minimum Holding Altitude
• CNTRLN — Centerline
• AAD — Assigned Altitude Deviation
• FAF — Final Approach Fixes
• AWOP — All Weather Operations Panel (ICAO)
• TVE — Total Vertical Error
• PHPD — Per Hatch Per Day
• EFIS — Electronic Flight Instrument System
• SMR — Surface Movement Radar
• CPF — Central Processing Facility
• A/G — Air/Ground
• MODE C — Altitude Reporting Mode of Secondary Radar
• A — Aeroplane
• NP — Network Protocol
• ACEP — Airport Capacity Enhancement Plan
• PDR — Preferential Departure Route
• ARINC 577 — Audible Warning System
• DAR — Designated Agency Representative
• NBCAP — National Beacon Code Allocation Plan
• BRM — Barometer
• ABOARD — On or within the ship
• ADT — Air Data Tester
• A/G — Air-Ground
• OLDI — On-Line Data Interchange
• RAES — Royal Aeronautical Society
• LS — Lumpsum Freight
• OVC — Overcast (METAR Code)
• KLM — KLM Royal Dutch Airlines
• RD-CHANNEL — Random Data Channel
• AFFREIGHTMENT — The hiring of a ship in whole or part
• HDWTS — Half Despatch Working Time Saved
• COBLDN — Closing of Business London

• GFP — Government Furnished Property
• IFPS — Integrated Initial Flight Plan Processing System
• ISPS — International Ships and Port Security system
• IDENT — Identification
• VOM — Volt-ohm-milliammeter
• HID/NAS/LAN — Host Interface Device/National Airspace System/Local Area Network
• C/A CODE — Course / Acquisition Code
• QP — Quality Plan
• NAWAU — National Aviation Weather Advisory Unit
• EMAS — Engineered Materials Arresting System
• APPR — Approach
• SATCOM — Satellite Communication
• DISCH — Discharge
• ORCAM — Originating Region Code Assignment Method
• CFP — Cold Front Passage
• BRITE — Bright Radar Indicator Tower Equipment
• ALO — Air Force Liaison Officer
• MMI — Marshall Management Instruction
• CSMC — Cyber Security Management Center
• IFE — In-Flight Emergency
• CUF — Cumuliform
• AIG — Airbus Industries Group
• FDE-ICD — Flight Data Entry - Interface Control Document
• FHEX — Fridays/Holidays Excluded
• AEP — FAA Office of Aviation Policy Planning and Environment
• HED — Heading
• CRT — Choice Reaction Time
• ASQP — Airline Service Quality Performance
• IA — International Alphabet
• ERIDS — En Route Information Display System
• AFN — air traffic services facilities notification
• INBD — Inbound
• AAC — Airline Administrative Communication
• HURCN — Hurricane
• TRK — Track
• LMM — Compass locator at the middle marker
• MET — Meteorological
• ATSS — Airway Transportation Systems Specialist
• NEXRAD — Next Generation Weather Radar
• ATCRU — Air Traffic Control Radar Unit
• EAD — Earliest Arrival Date
• ANP — Air Navigation Plan
• LAYCAN — Layday Cancelling Date
• AOC — Aeronautical Operational Communications
• COE — Center of Excellence
• AIFSS — Automated International Flight Service Station
• A/L — Anti-ice
• EFSTS — Electronic Flight Strip Transfer System
• TOD — Top of Descent
• IAG — International Association of Geodesy (IUGG)

• AFT — At or towards the stern or rear of a ship
• DEGS — Degrees
• LC — Local Control
• EARS — En Route Analysis and Reporting System
• AVGAS — Aviation Gasoline
• BANS — BRITE Alphanumeric System
• EXP — Expect
• GPWS — Ground Proximity Warning System
• ARPL — ADEXP Format Repetitive Flight Plans Message
• ISASI — International Society of Air Safety Investigators
• VTOL — Vertical Take-Off & Landing
• MALS — Medium-Intensity Approach Lighting System
• C-ATSU — Controlling ATS Unit
• FPO — Flight Procedures Office
• LB — Local Battery
• PALPA — Pakistan Air Line Pilots' Association
• ADLP — Aircraft Data Link Processor
• MTOW — Maximum Take-off Weight
• CWP — Controller Working Position
• CASOR — Civil Area Services Operations Room
• WND — Wind
• PT — Product Team
• FMGS — Flight Management Guidance System
• FCU — Flight Control Unit
• HEL — Helicopter
• CASS — Continuing Analysis and Surveillance System
• FAL — Final Assembly Line
• SFPL — System Flight Plan Processing
• QBI — Compulsory IFR flight
• HHMMSS — hour-hour / minute-minute / second-second
• AOR-W — Atlantic Ocean Region West
• CG — centre of gravity
• MMR — Multi-Mode Receiver
• DOF — Date of Flight
• AASR — Aging Aircraft Safety Rule
• 5-ST-RSG — 5-States Route Structure Group
• GN — Grain
• RPP — Radiation Protection Program
• HP — Holding Pattern
• TN — True North
• APMS — Automated Performance Measurement System
• SLOP — Strategic Lateral Offset Procedure
• NYPE — New York Produce Exchange
• C-ATSU — Current Air Traffic Services Unit
• ALOFT — Above the deck of the ship
• TWY — Taxiway
• ATCO — Air Traffic Control Officer
• 4-MAST — 4-MAST group
• FSCAP — Flight Safety Critical Aircraft Parts
• STANINE — Standard Nine Score

• FE — Flight Examiner
• NMB — National Mediation Board
• AJT — Terminal Service, Air Traffic Organization
• CP — charter-party
• FPCP — Flight Path Control Point
• AMIS — Aircraft Management Information System
• RCLL — Runway Centre Line Lights
• OPX — Off-Premises Exchange
• CFDIU — Central Fault Display Interface Unit
• ARINC 741P1 — Aviation Satellite Communication System:Part I- Aircraft Installation Provisions
• AATT — Advanced Aviation Transportation Technology
• SVP — Supervisor
• NOPT — No Procedure Turn Required
• APGSL — Air Line Pilots Guild of Sri Lanka
• CYTA — Cyprus Telecommunications Authority
• HELIOPS — Helicopter Operations Panel
• FSDPS — Flight Service Data Processing System
• ACRP — Airport Cooperative Research Program
• FBO — fixed base operator
• VCSS — Voice Communications Switching System
• RDVS — Rapid Deployment Voice Switch
• AAC — Mike Monroney Aeronautical Center
• TAU — Range / Range rate
• ACLT — Actual Landing Time Calculated
• VSP — Vertical Speed
• ATCSCC — Air Traffic Control Systems Command Center
• ASI — Aviation Safety Inspector
• IFSS — International Flight Service Station
• ATLAS — Air Traffic Land and Air Study
• AICS — Aircraft Inventory and Charter System
• FOR — Free On Rail
• FPLMTS — Future Public Land Mobile Telecommunications System
• WBC — Weight and Balance Computer
• CPA — Chairman's program assessment; closest point of approach
• QCM — Quality Control Manager
• MSK — Minimum Shift Keying
• SHL — Saville and Holdsworth Ltd
• SRTM — Shuttle Radar Topography Mission
• AGROUND — Touching or fast to the bottom
• AOCC — Atlantic Operations Control Center
• FSD TF — Functional Specification Development Task Force
• CAR — Civil Aviation Regulations
• AFRAA — African Airlines Association
• FHINC — Fridays/Holidays Included
• MTCD — Medium Term Conflict Detection
• AEX — Automated Execution
• NAVSAT — Navigation Satellite
• DMSH — Diminish
• SWAP — Severe Weather Avoidance Program
• HST — Hypersonic Transport

• RTSE — Reliable Transfer Service Element
• ATFMU — Air Traffic Flow Management Unit
• LECT — Lecture
• THDG — True Heading
• LYR — Layer
• HF — Human Factors
• ATOS — Air Transportation Oversight System
• ARN-2 (TABLE) — Radio Navigation Aids Associated with the Basic ATS Route Network Terminal Area and Instrument Approach Procedures
• ESEWD — East-Southeastward
• DDP — Distributed Data Processing
• FPPU — Flight Planning and Flight Progress Updating
• NAVAID — Navigational Aid
• GRD — Geared
• FME — Force Majeure Excepted
• NCN — Non-compliance Notification
• ADSEL — Address Selective SSR System
• CNS/ATM-1 — Communication, Navigation and Surveillance / Air Traffic Management Package 1
• DFS — Detailed Functional Specification
• AMOS — Automated Meteorological Observation Station
• AAH — Autonomous Aircraft Hybrid
• AVSI — Aerospace Vehicle Systems Institute
• DO — Diesel Oil
• OSH — Open Shelter Deck
• SAS — Scandinavian Airlines System
• VCY — Vicinity
• VCMIN — Active Minimum Control Speed
• ALPA-K — Air Line Pilots Association of Korea
• GNDCK — Ground Check
• PIC — Pilot In Command
• NORAC — No Radio Contact
• AMSS — Aeronautical Mobile Satellite System
• NPDU — Network Protocol Data Unit
• G/A — ground to air
• RTQC — Real Time Quality Control
• AOC — Aeronautical Operation Control
• COMCO — Command Communications Outlet
• HBS — Hotline Back-up System
• FPA — Flight Path Angle
• B&D — Bearing and Distance
• APPA — Asociacion Profesional de Pilotos Aviadores de Costa Rica
• ERIP — EAD Remote Interface Package
• VRS — Voice Response System
• DG — Directional Gyroscope
• FCL — Flight Crew Licensing
• QFU — Magnetic orientation or runway in use
• CLKWS — Clockwise
• AA — AMERICAN AIRLINE
• RCLS — Runway Centerline Lighting System
• EARTS — En Route Automated Radar Tracking System
• OIG — Office of the Inspector General

• ATOMS — Air Traffic Operations Management System
• EATCHIP OCD — Operational Concept Document
• FDE — Flight Data Entry
• BUNKERS — Name given for vessels Fuel and Diesel Oil supplies
• AERA — Automated En Route Air
• CASTLE — Consolidated Automated System for Time and Labor Entry
• DR — Drifting (METAR descriptor)
• ACM — Acceptable Means of Compliance
• DOM — Domestic
• BORG — Basic Operational Requirements Group
• AUW — All Up Weight
• BCC — Battery Charge Controller
• ARINC 541 — Airborne Magnetic Flight Data Recorder
• FSAS — Flight Service Automation System
• CIDIN — Common ICAO Data Interchange Network
• FWDD — Fresh Water Departure Draft
• AALPBH — Association of Airline Pilots in Bosnia & Herzegovina
• ADIS — Automatic dependent surveillance and Data Link Interim System
• ATCU — Air Traffic Control Unit
• ADS-P — Automatic Dependent Surveillance-Panel
• ETG — Enhanced Target Generator
• ROC — Regional Operations Center (NATO)
• PRM — Precision Runway Monitor
• TDO — Tornado
• JST — Joy Stick
• CMPL — complete
• UAL — United Airlines
• FLIDRAS — Flight Data Replay and Analysis System
• AFO — Airport Field Office
• FSYS — Flight Service Station Equipment Systems
• CAST — Certification Authority Software Team
• TARE — Telegraphic Automatic Relay Equipment
• CWAR — Continuous Wave Acquisition Radar
• ARO — Airport Reservation Office
• FRM — Financial Resources Management Core Team
• PCB&T — Personnel Compensation Benefits and Travel
• PATCG — PHARE Advanced Tools Co-ordination Group
• VM(LO) — Minimum Maneuver Speed
• SSFDR — Solid-State Flight Data Recorder
• IGFET — Insulated Gate Field Effect Transistor
• ASC — AUTODIN Switching Center
• MTW — Mountain Waves
• CMIS — Common Management Information System
• ARINC 585 — Electronic Chronometer System
• P&H — Press and Hold
• DITS — Digital Information Transfer System
• DARC — Direct Access Radar Channel
• DYSIM — Dynamic Simulator
• ARN-1 (TABLE) — Basic ATS Route Network in the Lower and Upper Airspace
• AACC — Airport Associations Co-coordinating Council

• FDESP — Free Despatch
• AEREA — Association of European Research Establishments in Aeronautics
• MCK — Maintenance Check
• FRNG — Firing
• AFI — Africa-Indian Ocean Region
• NTN — Network Terminal Number
• AM — AeroMexico
• AASA — Air Lines Association of Southern Africa
• ARINC 551 — Airborne Glide Slope Receiver - Mark 2
• ARINC 748 — Communications Management Unit
• FPB — Flight Progress Board
• AWO — All Weather Operations
• CAMI — Civil Aerospace Medical Institute
• ALPA-SA — Air Line Pilots Association - South Africa
• FIFO — Flight Inspection Field Office(s)
• DNSLP — Downslope
• ARINC 751 — Gate-Aircraft Terminal Environment Link - Aircraft Side
• AAATS — Australian Advanced Air Traffic Services
• ADDA — Administrative Data
• DADC — Digital Air Data Computer
• BTL — Between layers
• FTC — Fast-Time Constant
• OAG — Official Airline Guide
• AJW — Technical Operation Services, Air Traffic Organization
• ATILO — Administrative Tribunal of the International Labour Organisation
• AV — Avianca (Aerovias del Continente Americano) Colombian Airline
• SRMDM — Safety Risk Management Memo
• EEC — Electronic Engine Control
• EIRP — EffectiveIsotropic Radiated Power
• 8.33 PMC — 8.33 Programme Management Cell
• ARINC 7411P2 — Aviation Satellite Communication System: Part 2 - Satellite Design
• ARINC 307 — Aircraft Integrated Data System Wire Bundle Provisions
• APN — apron
• A/T — autothrottle
• MAX CLB — Maximum Engine Thrust for Two-Engine Climb
• FIS-B — Flight Information Services - Broadcast
• ASE — Altimetry System Error
• JAL — Japan Air Lines
• ASA — Airservices Australia
• GENOT — General Notice
• LRNAV — Long Range Navigation
• RA — Resolution Advisory
• OSA — Operational Safety Assessment
• MIRACULIX — Multi Interface Radarformat Calculator and
• EX GDR — ex German Democratic Republic
• IAT — Investment Analysis Team
• LOE — Line Oriented Evaluation
• DFDR — Digital Flight Data Recorder
• MAT — Maintenance Access Terminal
• MALPA — Mauritius Air Line Pilots Association

• C/S — Call Sign
• ERAM — En Route Automation Modernization
• FPS — Flight Progress Strip
• ANGB — Air National Guard Base
• CUR — Controller
• CPCS — Consolidated Production Control System
• EFC — Expected Further Clearance
• IANS — Institute of Air Navigation Services
• APC — Aeronautical Passenger Communication
• GEORGIAN ALPA — Georgian Air Line Pilots Association
• ETOPS — Extended Range Twin-Engine Operations
• FLAS — Flight Level Allocation System
• AUX — Auxilliary
• NAT MWG — North Atlantic Mathematicians Working Group
• CFL — Cleared Flight Level
• AAFCE — Allied Air Forces Central Europe
• TOGA — Takeoff/Go-Around
• FREE OUT — Free of discharge costs to owners
• AJO — Chief Operating Officer, Air Traffic Organization
• LVE — Leave
• RTCM SC — Radio Technical Commission for Maritime Services Special Committee
• DUATS — Direct User Access Terminal System
• FMF — Facility Master File
• FPZ — Flight Path Zone
• DNG — Danger
• DFRT — Deadfreight
• DATAC — Digital Autonomous Terminal Access Communication
• AEGIS — Airborne Early Warning Ground Environment Integrated Segment
• AFTN — Automated Fixed Telecommunications Network
• ARR SP — Arrival Sequence Planner
• RID — review item description
• ATK — Air Traffic Controller Acknowledgement
• AMCP — Aeronautical Mobile Communications Panel
• FISO — Flight Information Service Officer
• NAT SPG — North Atlantic Systems Planning Group
• OPLAN — Operational Plan
• CATCO — Chief ATC Operations
• ADAP — Airport Development Aid Program
• T/O — Takeoff
• DFW — Dallas Fort Worth International Airport
• 5-STRSSG — 5-States Route Structure Steering Group
• ATCEUC — Air Traffic Controllers European Unions Coordination
• NLA — New Large Aircraft
• RLSD — Released
• CAAF — Civil Aviation Authority of Fiji
• AIREP — Plain language form of Air Report
• AACE — Airfield Approach Control Element
• MORS — Mandatory Occurrence Reporting Scheme
• ATCI — Airport ATC and Information systems
• ACI-NA — Airports Council International-North America

• RNLAF — Royal Netherlands Air Force (also KLu)
• PANS-OPS — Procedures for Air Navigational Services - Aircraft Operations
• AMDA — Airlines Medical Directors Association
• ABAFT — Toward the rear of the ship
• AORTF — ATM Added Functionality Operational Requirements Task Force
• ATN — Aeronautical Telecommunications Network
• AIT — Automated Information Transfer
• WSW — West-South-West
• CNS/ATM — Communication, Navigation and Surveillance / Air Traffic Management
• V/S — Vertical speed
• VBX — Visual Basic Extensions
• MTRAQ — Multi track quality
• AJS — Safety Services, Air Traffic Organization
• ATCC — Air Traffic Control Centre
• PIREP — Pilot Report
• CENRAP — Center Radar ARTS Presentation
• AOPG — Aerodrome Operations Planning Group
• ANS/CR — Air Navigation Services of the Czech Republic
• AFIS — Automated Flight Inspection System
• AEA — Eastern Region
• ESCAT — Emergency Security Control of Air Traffic
• HS-DTS — High Speed Data Transmission System
• OBST — Obstacle
• SASS-C — Surveillance Analysis Support System - Centre
• FQIS — Fuel Quantity Indicating System
• GADO — General Aviation District Office
• FFAC — From Facility
• EATCHIP LO — EATCHIP Liaison Officer
• U/L — Upper / Lower
• AHR — FAA Office of Human Resources
• DP&P — Data Processing And Peripherals
• FREQ — Next Sector frequency
• ALPA-A — Air Line Pilots Association of Armenia
• ALD — Airlift Division
• IACA — International Air Carrier Association
• ISL — Intermediate Supplementary Flight Level
• ALLA — Allied Long-Lines Agency
• IUAI — International Union of Aviation Insurers
• GMU — GPS (Height) Monitoring Unit
• EEC — Eurocontrol Experimental Centre
• IACS — INTERGRAPH Aeronautical Charting System
• ADIZ — Air Defence Identification Zone
• RTS — Return To Service
• AJF — Finance Services, Air Traffic Organization
• TODA — Take-Off Distance Available
• LMM — Locator middle marker
• SEMP — Software Engineering Management Plan
• HHMM — Hours and minutes
• AAC — Aeronautical Administration Communication
• ALCM — Air Launched Cruise Missile

• FISA — Automated flight Information Service
• VPATH — Vertical Path
• STANAG — (NATO) Standardisation Agreement
• ABET — Airspace Behavioural Engineering Technology
• CLNP — Connection Less Network Protocol
• FLOWSIM — Traffic Flow Planning Simulation
• FSF — Flight Safety Foundation
• ANMS — Automated Network Monitoring System
• ASAS — Aviation Safety Analysis System
• SSAP SELECTOR — Session Service Selector
• VY — Speed for best rate of climb
• MSAW — Minimum Safe Altitude Warning
• FIN — Finnair Oyj, Finland
• EFF — Effective from
• IOSA — Iata Operational Safety Audit
• BROKERAGE — Percentage of freight payable to broker
• NADIN — National Airspace Data Interchange Network
• GEOREF — Geographical reference
• HAA — Height Above Airport
• AP — Airport Plaza
• ARP — Aerospace Recommended Practice
• EU-FCL — EASA Flight Crew Licensing
• KB — Kilo Bytes (1,000 Bytes)
• ASPM — Aviation System Performance Metrics
• DEV — Deviation
• D — Derated
• OH — Operational Handbook
• AIM — Aeronautical Information Management
• FPFS — First Planned First Served
• MUT — Mean Up Time
• CFD — Change to Flight Data Message
• AFD — Airport Facility Directory
• FIS-B — Flight Information Service - Broadcast
• CVTS — Compressed Video Transmission Service
• AIRC — Aeronautical Information and Control
• LCN — Local Communications Network
• ASP — Arrival Sequencing Program
• IM — Inner Marker
• PTH — Path
• ADTN — Administrative Data Transmission Network
• ADS-C — Automatic Data Surveillance Contract
• IFL — Intermediate Flight Level
• RFL — Requested Flight Level
• ACS — airspace control system
• CIT — Compressor Inlet Temperature
• CAEG — Computer-aided Engineering Graphics
• V/STOL — Vertical or Short Take-Off and Landing
• FDSU — Flight Data Storage Unit
• ADL — Aeronautical Data-Link
• OPADD — Operating Procedures for AIS Dynamic Data

• CAIRS — Cable Assignment Information Retrieval System
• PFL — Planned Flight Level
• ADM — Aeronautical Decision Making
• RX — Receiver
• 4DTN — 4D Trajectory Negotiation
• FAX — Facsimile Equipment
• AFAS — Aircraft in the Future ATM System
• OGE — Operational Ground Equipment
• FPPS — Federal Personnel Payroll System
• ARINC 741P4 — Aviation Satellite Communications System:Part 4 - Specification and Description Language
• GSB — Good Safe Berth
• DCS — Double Channel Simplex
• DOD — Department of Defence
• MVE — Move
• ELNGT — Elongate
• GDLP — Ground Data Link Processor
• OTR — Oceanic Transition Route
• TAAATS — The Australian Advanced Air Traffic Services System
• LCG — Load Classification Group
• ASECNA — Agence pour la Securité de la Navigation en Afrique et à Madagascar
• ARINC 752 — TFTS Airborne Radio Sub-System
• CNS — Communication, Navigation and Surveillance Systems, Inc.
• VDC — Volts, Direct Current
• ARINC 592 — Airborne Passenger Tape Record
• ARSC — Air Rescue Sub Centre
• AND — Associate Administrator for NAS Development
• ASRS — Aviation Safety Reporting System
• AJA — Acquisition & Business Services, Air Traffic Organization
• DRCP — Data Reduction Computer Program
• AIS-TF — AIS Training Task Force
• CEATS LSG — Central European Air Traffic Services Legal Sub Group
• OAMP — Off-line Aircraft Management Program
• ALPA-INT — Air Line Pilots Association - International
• AEE — FAA Office of Environment and Energy
• EHEST — European Helicopter Safety Team
• COCESNA — Central American Corporation for Air Navigation Services
• INSTRAT — Institutional Strategy for Air Traffic Management
• CATCAS — Copenhagen Air Traffic Control Automated System
• JAI — Joint Acceptance Inspection
• FISMA — Federal Information Security Management Act of 2002
• TEMPO — Temporary
• EC — East Coast
• ALPA-S — Air Line Pilots Association - Singapore
• FDMAS — Flight Data Management Automated System
• DFGS/C — Digital Flight Guidance System/Computer
• HCP — Hard Copy Printer
• RLD — Rijks Luchtvaart Dienst
• FDMD — Flight Data Management and Distribution
• SUP/ACC — Supervisor Area Control Centre
• ATTCS — Automatic Takeoff Thrust Control Systems

• AFTIL — Airway Facilities Tower Integration Laboratory
• BASOP — Military Base Operations
• RAPNET — Regional ATC Packet switched Network
• ATAS — Airspace and Traffic Advisory Service
• OGM — Objectives > Goals > Mission
• IW — Inside Wiring
• AGA — Aerodromes, Air Routes and Ground Aids
• MTCDR — Medium-Term Conflict Detection and Resolution
• CARATS — Collaborative Actions for Renovation of Air Traffic Systems
• OMEGA — Very Low Radio Navigation System
• LYCN — Layday Cancelling Date
• ER TC — En-Route Tactical Controller
• GES — Ground Earth Station
• ERD — End Routing Domain
• REACT — Rain Echo Attenuation Compensation Technique
• AAL — Alaska Region
• IABA — International Association of Aircraft Brokers and Agents
• ARINC 406A — Airborne Electronic Equipment
• MVA — Minimum Vectoring Altitude
• MDAU — Maintenance Data Acquisition Unit
• OMT — Onboard Maintenance Terminal
• SS — Sunset
• BIMCO — The Baltic and International Maritime Council
• EUROCONTROL — European Organisation for the Safety of Air Navigation
• AAMS — Aircraft Arrival Management System
• VS — Design Speed for Maximum Gust Intensity
• AI — Application Interface
• AS — Airspeed
• ALPA-E — Air Line Pilots Association of Ethiopia
• AFM — Aeroplane Flight Manual
• IAS — Indicated Air Speed
• DSCN — Direct Speech Circuit Networks
• AFZ — Resource Management
• HSPD — Homeland Security Presidential Directive
• AOI — Area of Operational Interest; TERPS Office (USAF)
• ANSEP — Air Navigation Services Economics Panel
• APDSG — Airspace Planning & Development Sub-Group
• RIMS — Runway Incursion Monitoring System
• ALRT — Alert
• ARTCC — Air Route Traffic Control Centre
• JSS — Joint Surveillance System
• ATPL — Air Transport Pilot Licence
• IRVR — Instrument Runway Visual Range
• EASA — European Aviation Safety Authority
• CAMA — Civil Aviation Medical Association
• AWX — All Weather Fighter
• SSW — South-South-West
• MTWA — Maximum Takeoff Weight Authorized
• EFC — Expect Further Clearance
• ALPA-SL — Air Line Pilots Association of Slovenia

• HAC — Hughes Aircraft Company
• SNIR — Signal-to-noise ratio
• ALTNLY — Alternately
• COBALT — Common Objective Alignment Team
• SHEL — Software, Hardware, Environment, Liveware
• QTE — True Bearing
• ARNG — Arrange
• AJC — Communications Services, Air Traffic Organization
• DACS — Digital Aeronautical Chart Supplement
• VFE — Flaps Extended Placard Speed
• CEATS UAC — Central European Air Traffic Services Upper Airspace Control Centre
• CAAFI — Commercial Aviation Alternative Fuels Initiative
• OGP — Oil and Gas Producers Aviation Sub Committee
• ALPA — Airlines Pilots Association
• ASTA — Airport Surface Traffic Automation
• ACOD — Area Conflict Detection
• HFDL — High Frequency Data Link
• TWT — Travelling Wave Tube
• ADMA — Aviation Distributors and Manufactureres Association
• RTQC/A — Real Time Quality Control / Assessment
• AOIS — Aeronautical Operational Information System
• IAASM — International Academy of Aviation and Space Medicine
• CPCS — Cabin Pressure Control System
• ALTN — Alternate
• STAC — Second Time Around Clutter
• UAP — User Application Profile
• MRVA — Minimum Radar Vector Altitude
• MEB — Main Earthing Bar
• IFATCA — International Federation of Air Traffic Controllers' Associations
• ABET — Airspace Behavioral Engineering Technology
• MAPT — Missed Approach Point
• AFAST — Active Final Approach Spacing Tool
• CTO — Calculated Time Over
• CZM — Conventional Zero Meridian
• P — Procedure-Required Tuned NAVAID
• ALR — IFALPA's Airport Liaison Representative Program
• VC — Design Cruising Speed
• IFG-NME WG — Implementation Facilitation Group of the National Management Experts Working Group
• 5-SRSWG — 5-States Route Structure Working Group
• AFM — Affirmative Fair Housing Marketing
• LDAH — Landing Distance Available Helicopter
• WXR — Weather Radar
• ATCA — Air Traffic Controllers Association
• CANSO — Civil Air Navigation Services Organisation
• ARINC 595 — Barometric Altitude Rate Computer
• ATA — Airport Traffic Area
• IFPL — Individual Flight Plan Message
• ADEP — Aerodrome of Departure
• FP — Free Pratique
• DTU — Data Terminating Unit

• DMRS — Database Management Reporting System
• AOCI — Airport Operators Council International
• AIDS — Airborne Integrated Data Systems
• IAFP — Individual ATC Flight Plan Proposal
• FSSA — Flight Service Station Automated Service
• POCC — Pacific Operations Control Center
• MTOM — Maximum Take-Off Mass
• IAM — Institute of Aviation Medicine
• ELS — Emergency Landing Strip
• ACFS — Advanced Concepts Flight Simulator
• AZ — Aerodrome zone
• D/A — Digital-to-Analog
• DOD MIL — Department of Defence - military
• PSDN — Public Switched Data Network
• CES — Central and Eastern European States
• CLG — Calling Line
• OE/AAA — Obstruction Evaluation/Airport Airspace Analysis
• WSFO — Weather Service Forecast Office
• CRNA — Centre Régional de la Navigation Aérienne
• AREA — Automated En Route Air Traffic Control
• COCESNA — Central American Corporation For Air Navigation Service
• TCAS — Traffic Alert and Collision Avoidance System
• LVB — Luchtverkeersbeveiliging
• AAA — Airport Airspace Analysis
• AIRMET — Air Meteorological Information Report which may affect the safety of low-level aircraft operations
• OFT — Outer Fix Time
• NAV-1 — Radar Data System
• DEPA — Departure Airfield
• SSM — Sign Status Matrix
• AFCNF — Air Force Central NOTAM Facility
• ZFW — Zero Fuel Weight
• ARINC 569 — Heading and Altitude Sensor
• AAFG — ATM Added Functionality Sub-Group
• ERSS — Eurocontrol Radar Surveillance Standard
• GLONASS — Global Orbiting Navigation Satellite System, Russia
• CAR — Caribbean Region
• AIPA — Aeronautical Information Production Application
• EPROM — Erasable-Programmable Read-Only-Memory
• EDDA — Environmental Due Diligence Audit
• CUPS — Consolidated Uniform Payroll System
• AFMT — Airway Facilities Management Team
• SFAR — Special Federal Aviation Regulation
• ETN — Electronic Telecommunications Network
• LCGS — Low Cost Ground Surveillance Radar
• AIRNET — Airport Network Simulation Model
• FLCH — Flight Level Change
• APATSI — Airport / Air Traffic Systems Interface
• SMPS — Sector Maintenance Processor Subsystem
• DASI — Digital Altimeter Setting Indicator
• SECRA — Secondary Radar Data Only

• AADC — Airport Average Daily Capacity
• IAF — Initial Approach Fixes
• ARO — Air Traffic Service Reporting Office
• EFL — Entry Flight Level
• AOF — Allocation of Functions
• FMU — Flow Management Unit
• AWPA — Australian Women Pilots' Association
• NARG — Navigation Aids and Area Navigation Group
• RMMC — Remote Maintenance Monitoring and Control
• FDC — Flight Data Company
• EATMS — European Air Traffic Management System
• PD — Profile Descent
• NATINAD(S) — NATO Europe Integrated Air Defence
• RCDSS — Radar Control and Display Subsystem
• AQS — FAA Office of Quality, Integration and Executive Services
• CL — Cost Index
• CDFA — Constant Descent Final Approach
• CTSKLS — Catskills
• EVAS — Enhanced Vortex Advisory System
• ATFMP — Air Traffic Flow Management Position
• GENOFIC — General North Sea Flight Information Centre
• CTOL — Conventional Takeoff & Landing
• SPAS — Safety Performance Analysis System
• AWY — Airway
• ASIP — Aviation VHF-Very High Frequency- Packet Communication Simple Interface Protocol
• SETA — Systems Engineering and Technical Assistance
• DMR — Data Modification Request
• PFR — Probability of Failure Repair
• AEEC — Airlines Electronic Engineering Committee (ARINC)
• MOGAS — Motor Gasoline
• ATM — Air Transportation Management
• DIRF — Direction Finding
• D&D — Distress and Diversion
• ATIC — Administrative and Technical Inspection Committee
• FAST — Final Approach Spacing Tool
• AITSC — Administrative IT Steering Committee
• IFO — International Field Office
• NTM F/T SIM — Nattenheim Fast Time Simulation
• EL — Electro-Luminescent
• RSAP — Runway Safety Action Plan
• MDA — McDonnell-Douglas Aerospace
• ALPL — Association Luxembourgeoise des Pilotes de Ligne
• CESAR — Course Evaluation Sheets Analysis and Reporting
• ACFO — Aircraft Certification Field Office
• RBDPE — Radar Beacon Data Processing Equipment
• ACAS — Airborne Collision and Avoidance System
• AISAS — Aeronautical Information Services Automated System
• VAAC — Volcanic Ash Advisory Centre
• ACPO — Aircraft Position Operator
• ESERN — East-Southeastern

• DDA — Dedicated Digital Access
• V1 — Take-Off Decision Speed
• GO — Gas Oil
• HKALPA — Hong Kong Air Line Pilots Association
• IRCAS — Intranet Radio Coverage Analysis System
• FPPS — Flight Plan Processing System
• FFM — Free Flight Mode
• STDMA — Self-organising Time Division Multiple Access
• SFAR-38 — Special Federal Aviation Regulation 38
• FCM — Flight Confirmation Message
• CLSD — Closed
• DMS — Database Management System
• PCGO — Part Cargo
• DE-TO PR — Derated Takeoff Engine Pressure Ratio
• CPMIS — Consolidated Personnel Management Information System
• CAAC — Civil Aviation Authority of China
• APP — Approach Control
• AMIDSHIPS — In or toward the centre of the ship
• DL — Delta
• FRH — Fly Runway Heading
• ARINC 59MA — Airborne Announcement Tape Reproducer
• AP — Airport Patrol
• CCIF — Comit? Consultatif International Des Communications T?l?phoniques ? Grande Distance (French For International Telephone Consultative Committee
• DAI — Direct Access Intercom
• AFS — Automatic Flight System
• DFI — Direction Finding Indicator
• MOD — Memorandum of Decision
• ATCA — Air Traffic Control Association, Inc.
• MAA — maximum authorized IFR altitude
• V/M — Volts-per-meter
• E-MSAW — En Route Automated Minimum Safe Altitude Warning
• CGAS — Coast Guard Air Station
• NAT CMA — North Atlantic Region Central Monitoring Agency
• ASIAS — Aviation Safety Information Analysis and Sharing
• NAT IMG — North Atlantic Implementation Management Group
• SIR — Screening Information Request
• IRMC — Integrated Risk Management Checklist
• DRDF — Digital Readout Direction Finder
• ADISP — Automated Data Interchange Systems Panel
• VHRR — Very High-Resolution Radiometer
• PNF — Pilot Not Flying (aviation)
• AGI — FAA Office of Government and Industry Affairs
• GNLU — GNSS Navigation and Landing Unit
• IPSE — Integrated Programming Support Environment
• AWAS — Automated Weather Advisory Station
• POC — Point-of-Contact
• ACDAC — Asociacion Colombiana de Aviadores Civiles
• FZL — Freezing Level
• AWSS — Automated Weather Sensors System
• AIG — Accident Investigation & Prevention

• INM — Integrated Noise Model
• DPE — Designated Pilot Examiner
• CDU — Control and Display Unit
• DERA — Defense Evaluation and Research Agency
• AVPAC — aviation VHF packet communications
• HTZ — Helicopter Traffic Zone
• BAPA — Bangladesh Airline Pilots Association
• NRZI — Non Return to Zero Inverted magnetic tape bpi
• TDZ — Touchdown Zone
• ACAC — Arab Civil Aviation Council
• CEATS — Central European Air Traffic Services
• HIS — Horizontal Situation Indicator
• BECA — Belgium Cockpit Association
• STCA — Short Term Conflict Alert
• ARTS — Area Radar Training Squadron
• ANM — ATFM Notification Message
• NMCS — Network Monitoring and Control System
• CASS — Corporate Aviation Safety Seminar
• ITI — Interactive Terminal Interface
• HIRS — High-resolution Infrared Sounder
• FPD — Flight Plan Database
• IFEA — In-Flight Emergency Assistance
• ADO — IFALPA Aircraft Design & Operation Committee
• FMG — Frequency Management Group
• LAHSO — Land And Hold Short Operation
• TACH — Tachometer
• IGCN — Independent Ground Communications Network
• PPL — Private Pilot License
• CRO-ALPA — Croatian Air Line Pilots Association
• DEMO — Demonstration
• DACT — Dissimilar Air Combat Training
• MB — Merchant Broker
• MONA USER — Monitoring Aids User
• GICB — Ground Initiated Comm B Protocol
• AFSFU — AFS Field Unit
• DVOR — Doppler Very High Frequency Omni Directional Range
• IAR — Intersection of Air Routes
• FOG — For Our Guidance
• SO — Southern Airways
• REAL — Real time
• PPR — Prior Permission Required
• TARMAC — Taxi and Ramp Management and Control
• ADVO — Administrative Voice
• TAWS — terrain awareness and warning system
• SMD — Storage Module Device
• VLOF — Lift-off Speed
• ARINC 602A — Test Equipment Guidance
• RPL — Repetitive Flight Plan
• EOPF — Electronic Official Personnel File
• CAOFA — Co-ordination of Air Operations in the Forward Area

• ATNP — Aeronautical Telecommunications Network Panel
• APV — Approach with Vertical Guidance
• AENA — Spanish Airport and Air navigation Administration
• GFM — Government Furnished Materials
• CHI — Computer-Human Interface
• GDCA — General Directorate for Civil Aviation
• AVON — AUTOVON Service
• VTOL — Vertical Take-Off and Landing aircraft
• SIGMET — Significant Meteorological Information
• NDB — Non-Directional Beacon
• ARSA — Airport Service Radar Area
• IGP — Ionospheric Grid Points
• ACDMD — Air Collaborative Decision Making Demonstrator
• AWOS — Automatic Weather Observing System
• SAS — Scandinavian Airline Systems
• CGS — Centimeter-gram-second
• CR(A)OC — Central Region (Air) Operations Centre
• TA — Traffic Advisory
• FO(IFO) — Fuel Oil/Intermediate FO
• BTC — Basic Training Course
• DTG — Distance-to-go
• AIRCOM — Aircraft Communications
• ALPA — As the Air Line Pilots Association
• ALERT — Alert phase
• CCS7-NI — Communication Channel Signal-7 Network Interconnect
• LDB — Limited Data Block
• MCC — Maintenance Control Center
• DCAA — Danish Civil Aviation Administration
• AIRSPACE — and Traffic Management
• AJE — En Route & Oceanic Service, Air Traffic Organization
• LIH — Light Intensity High
• NTAP — Notice to Airman Publication
• IFATSEA — International Federation of Air Traffic Safety Electronic Associations
• BRKHIC — Breaks in Higher Overcast
• ISSM — Information Systems Security Manager
• GHMI — Ground Human-Machine Interface
• MCSG — Military Committee Staff Group
• QRA — Who Are You
• REGIS — Regional Information System
• CEECS — Central and Eastern Europe Countries
• CLT — Calculated Landing Time
• MAX CRZ — Maximum Engine Thrust for Two-Engine Cruise
• WTC — Wake Turbulence Category
• USOAP — Universal Safety Oversight Audit Program
• LLC — Link Layer Control
• ADSIM — Airfield Delay Simulation Model
• NAILS — National Airspace Integrated Logistics Support
• ESCO — Executive Support and Coordination Office
• ASDE — Area Surveillance Detection Equipment
• DLASD — Data Link Application and System Document

• AWPG — Aviation Weather Products Generator
• ECVFP — Expanded Charted Visual Flight Procedures
• IVRS — interim voice response system
• ERM — En Route Spacing Program
• CIWS — CORRIDOR INTEGRATED WEATHER SYSTEM
• AFP — Area Forecast Panel
• ALCC — Airlift Central Co-ordination Centre
• DFL — Daily Flight Log
• ATCS — Air Traffic Control Service
• AISS — Aeronautical Information Server System
• PATWAS — Pilot's Automatic Telephone Weather Answering Service
• ASBA — American Shipbrokers Association
• GFDI — GNSS Fault Detection and Isolation
• CEU — Central Executive Unit
• CAI — Contractor-Acceptance Inspection
• EFPM — Extended Flight Plan Message
• VSAT — Very Small Aperture Satellite Terminal
• ACL — Air Traffic Control Clearance
• ARSA — Airport Radar Serve Area
• HFX — Holding Fix
• ACE — Central Region
• EFP — Espaсa-France-Portugal Plan
• GRAF — Ground Replay and Analysis Facility
• PFAST — Passive Final Approach Spacing Tool
• MDH — Minimum Descent Height
• ELR — Extra Long Range
• D/D — Drift Down
• AO — Airlines Operator
• IFPPS — Integrated Flight Plan Processing System
• FIRE — Fire Station
• ALPA — Asociacion de Pilotos de Lineas Aereas
• DCCU — Data Communications Control Unit
• RTA — Required Time of Arrival
• EFDP — European flight data processing(Eurocontrol)
• IIE — Integrated Information Environment
• MPL — Multi-crew Pilot Licence
• HEMS — Helicopter Emergency Medical Services
• RPR — Real Property Report
• FDMA — Frequency Division Multiplex Access
• ISSCA — Information Systems Security Certification Agent
• AWP — Arrival Waypoint
• VCR — Visual Control Room
• CRMCS — Central RADNET Monitoring and Control System
• TKE — TrackAngle Error
• MADAP — Maastricht Automatic Data Processing and Display System
• AIRPAC — Advisor for the Intelligent Resolution of Predicted Aircraft
• ACTF — Aeronautical Charting Task Force
• CTAM — Climb to and Maintain
• SUPSIS — Supervisor
• HDQ — FAA Headquarters

• DAIR — Direct Altitude and Identity Readout
• IAPL — IFPS APL Message
• AAM — Airbus Asset Management
• ARINC 569 — Airborne Distance Measuring Equipment
• ASPA — Asociacian Sindical de Pilots Aviadores de Mexico
• GLOC — Gravity-Induced Loss of Consciousness
• AOPTF — Aerodrome Operations Task Force
• ACC-TC — ACC Tactical Controller
• FGS/C — Flight Guidance System/Computer
• ARST — Arresting specify aircraft arresting
• FDA — Flight Data Analysis
• TDM — Track Definition Message
• ALR — Alerting message
• AP — Airport Protection
• SVN — Satellite Vehicle Number
• AMIC — Area Manager in Charge
• XM — External Master
• CMCSG — Civil and Military Co-ordination Sub-Group
• FIP — Facility Improvement Program
• ARU — Airspace Reservation Unit
• IAIP — Integrated Aeronautical Information Package
• ANPP — Air Navigation Plan Publication
• FCLT — Freeze Calculated Landing Time
• IANC — International Airline Navigators Council
• EIU — Electronic Interface Unit
• AUTOB — Automatic Weather Reporting System
• CMSA — Carrier Sense Multiple Access
• EURO RAN — European Regional Air Navigation
• ACIPLA — Asociacian Civil de Pilotos de Lineas Aereas
• RMU — Radio Management Unit
• ADI — Automatic De-Ice and Inhibitor
• MASPS — Minimum Aviation Systems Performance Standards
• M/SEC — Metres per second
• TOPL — Take Off Performance Limits
• IFPP — Instrument Flight Procedures Panel
• GDE — Ground Delay Enhancements
• CVFR — Controlled Visual Flight Rules
• AAF — ATM Added Functions
• HELI — Heliport
• ANSA — International Advisory Group Air Navigation Services
• SARP — Signal Automatic Radar Processing
• RPC — Restoration Priority Code
• AFG — Advisory Financial Group
• CPDLC — Controller Pilot Datalink Communications
• ATIS — Aerodrome Terminal Information Service
• ATAC — Airspace Traffic Data Capture
• GGCS — Ground/Ground Communication System
• IPPC — Internet Pilot Planning Centre
• FES — Fixed Earth Station
• NB — NorthBound

• DABBS — DITCO Automated Bulletin Board System
• ACA — Austrian Cockpit Association
• BEAM — the greatest width of a ship
• EUR — Region European Region
• SDS — Switched Data Service
• VSO — Stalling Speed in the Landing Configuration
• ALA — Alighting Area
• LAA — Local Airport Advisory
• ASPP — Aeronautical Fixed Service Systems Planning for Data Interchange Panel
• CSS — Central Site System
• CDR — Coded Departure Routes
• DDB — Dynamic Database Browser
• GAT — General Air Traffic
• AOWIR — Aircraft Operator What-If Re-routing
• CSI — Criticality Safety Index
• AIPN — Appointing authority
• PTOT — Provisional Take-Off Time
• AXX — One of the 9 Regional Offices
• IFFN — Identification Friend, Foe or Neutral
• GNSSP — Global Navigation Satellite System Panel
• FMA — Flight Mode Annunciator
• WPX — Next waypoint on the flight plan
• HIPERLAN — High Performance Local Area Network
• BRT — Brightness
• LACAC — Latin American Civil Aviation Commission
• MBPS — Mega Bits per second
• FMS — Flight management system
• RSA — Runway Safety Area
• ARINC 533A — Airborne HF SSB/AM System
• EHA — European Helicopter Association
• CEAC — Committee of European Airspace Co-ordination
• AID — Airport Information Desk
• HDF — High frequency direction-finding station
• NSE — Navigation System Error
• DE-TO NL — Derated Takeoff Engine Fan Speed
• PC — Period of Charter
• SNOMAC — Syndicat National des Officiers Mecaniciens de l'Aviation Civile
• ACN — Airspace Co-ordination Notification
• METAR — Meteorological Aerodrome Report
• DCAA — Dual Call, Automatic Answer Device
• C — Celcius
• ARASCNAC — Air traffic services Routes for Aircraft with Self-contained Navigational Capabilities
• AAG — AIS Automation Group
• RE — Resident Engineer
• DPDG — Diplomatic and Protocol Drafting Group
• SAGA — System Safety Approach for General Aviation
• TARA — Terminal Area RNAV Applications Task Force
• DEWIZ — Distance Early Warning Identification Zone
• IRT — Interrogation Repetition Time
• AFC — Airport Facilities Control

• AFL — Assigned Flight Level
• FERS — Facility and Equipment Reporting System
• CMMC — Common Maintenance Monitoring and Control
• RCP — Radio Control Panel
• ADSP — ADS Processor
• MKR — Marker Radio Beacon
• FIO — Flight Information Office
• PIREPS — electronic pilot reports
• FSFO — Flight Standards Field Office
• DDC — Data Display Console
• APLRIM — Association des Pilotes de Lignes de Mauritanie
• AIR 4653 — Aerospace Information Report 4653
• ADTN2000 — Administrative Data Transmission Network 2000
• SR&O — System Requirements and Objectives
• CEAS — Class E Airspace
• MIDO — Manufacturing Inspection District Office
• DUAT — Direct User Access Terminal
• CLBR — Calibration
• AOPA — Aircraft Owner and Pilot Associations
• SAFI — Semi-Automatic Flight Inspection
• NIMS — NAS Infrastructure Management System
• SPAS — System Performance Analysis System
• TMA — Terminal Area
• ADUG — Airport Database User Group
• AIMS — Aircraft Information Management System
• HV — Transavia Airlines CV
• APATSI — Airport/air traffic system interface
• VTOL — Vertical Takeoff And Landing
• IR — Ice on Runway
• AES — Airborne Earth Station
• RDP — Radar Data Processor
• DAAIS — Danger Area Activity Information Service
• NARACS — National Radio Communications System
• RCD — DCL Request Message
• ATFC — Air Traffic Flow Controller
• GIB — Global Navigation Satellite System Integrity Broadcast
• EFPS — External Front Processing System
• MLD — Military Liaison Division
• GMCC — General National Airspace System Maintenance Control Center
• AJP — Operations Planning Services, Air Traffic Organization
• CMOS — Complementary Metal Oxid Semiconductor
• ETX — End of Transmission
• DER — Departure End of the Runway
• IGA — International General Aviation
• PND — Primary Navigation Display (aviation)
• SNA — Sindicato Nacional dos Aeronautas
• DSUA — Dynamic Special - Use Airspace
• X.25 — Packet Switched Data Network
• AAA — Asian Airliners Association
• IS-ES — Intermediate System - End System

• AWSS — Automated Weather Sensor System
• IAPA — Instrument Approach Procedures Automation
• LDR — Labor Distribution Reporting
• RTC — Radio Transmission Control
• FDPD — Flight Data Processing and Distribution
• DMSTN — Demonstration
• BA — Barometric Altitude
• LOS — Line-Oriented Simulation
• MBR — Mittel-Bereich radar
• CFMU — Central Flow Management Unit
• ATSC — Air Traffic Service Communications
• EBC — Event Based Currency
• AISU — Aeronautical Information Service Unit
• ATAS — Air Traffic Advisory Service
• EARTS — Enroute Automated Radar Tracking System
• FEAST — First European ATCO Selection Test Package
• GAR — Go-Around
• EFS — Electronic Flight Strip
• FPF — Flight Plan Fallback
• SUR — Surveillance
• AEROSAT — Aeronautical Satellite Council
• CDD — Corporate Data Dictionary
• AMOSA — Association of Aviation Maintenance Organisations of Southern Africa
• RLCE — Request Level Change En-route
• PRP — Pulse Repetition Period
• PT — Total Pressure
• CATSIM — CAA Air Traffic Simulator
• DGB — Dangerous Goods Board
• AOCP — Airborne Operational Computer Programme
• CAEP — Committee on Aviation Environmental Protection
• FRA — Flap Retraction Altitude
• CALPA — China Airline Pilots Association
• TXWY — Taxy Way
• VTR — Variable Takeoff Rating
• KECU — Thousands of European Currency Units
• LISREL — Linear Structural Relations
• FMPG — Air Traffic Flow Management Planning Group
• NAT ATMG — North Atlantic Air Traffic Management
• EPCM — Enhanced Planning Control Message
• XY — Ryan Air
• HARS — High Altitude Route System
• RATCF — Radar Air Traffic Control Facility
• HWP — Holding Waypoint
• FPI — Fluorescent Penetrate Inspection
• SANE — Skill Acquisition Network
• ISAD — ICAO's Incorporating Security into Aircraft Design Working Group
• FPM — Flight Path Monitor
• FALPA — Fiji Air Line Pilots Association
• AIREP — Air-Report
• GRADE — Graphical Airspace Design Environment

• PCATD — Personal Computer-Based Aviation Training Device
• JPDO — Joint Planning and Development Office's
• ATI — Automatic Tracking Initiation
• ACE — Allied Command Europe's
• ECAR — European Civil Aviation Requirement
• OATS — Orbit and Attitude Tracking
• CESA — Class E Surface Area
• JIT — Joint Implementation Team
• CMU — Communications Management Unit
• PNGAPA — Papua New Guinea Air Pilots Association
• SRZ — Special Rules Zone
• IMAWP — Initial Missed Approach Waypoint
• IAC — International Advisory Committee
• NCW — Non Conformance Warning
• SOIR — Simultaneous Operations on Intersecting Runways
• ALPA-M — Airline Pilots Association - Malta
• IFP — Instrument Flight Procedures
• ODID — Operational Display and Input Development
• BRNAV — Basic Air NAVair Traffic Control Unit
• CAMI — Civil Aeromedical Institute
• ASPLAB — Asociacion Sindical de Pilotos del Lloyd Aereo (Bolivia)
• COSP — Connection-Oriented Session Protocol
• TMG — Tourig Motor Glider
• ANE — New England Region
• SESMA — Special Event Search and Master Analysis
• AEDT — Aviation Environmental Design Tool
• HAI — Helicopter Association International
• TSE — Total System Error
• NATMC — NATO Air Traffic Management Committee
• LVA — Large Vertical Aperture
• ACG — Advanced Concept Group
• RTP — Regional Transportation Plan
• PARI — Precursor, Action, Result, Interpretation
• BDAT — Digitized Beacon Data
• ARCTR — Aeronautical Center
• AOAS — Advanced Oceanic Automation System
• DEMETER — Distance Measuring Equipment Tracer
• AEG-TFK — AEG-Telefunken
• DAFIS — Departmental Accounting and Financial Information System
• FEATS — Future European Air Traffic System
• ATHR — Autothrust System
• DEP TC — Departure Tactical Controller
• HCS — Host Computer System
• CDRA — Cooperative Research and Development Agreement
• WMSC — Weather Message Switching Center
• BUL-ALPA — Bulgarian Air Line Pilots Association
• WX DEF — Weather Deviation
• DLH — Deutsche Lufthansa
• ANSO — Air Navigation Services Offices
• NUDET — Nuclear Detection

• D/L — Data Link
• CENTX — Central Telephone Exchange
• CRCO — Central Route Charges Office
• MIDAS — Man-Machine Integration Design and Analysis System
• OTFP — Operational Traffic Flow Planning (aviation)
• AASC — Airport Authorities Steering Committee
• GF — Gulf Air Company - Bahrain
• HDOT — Inertial Vertical Speed
• USAF — U.S. Air Force
• MTAC — Multiple Time Around Clutter
• CTA — Control Area (Air Traffic)
• ASTOR — Aircraft Simulation for Traffic Operations Research
• WINDMG — Wind Magnitude
• MTAT — Multiple Time Around Targets
• IAR — Investment Analysis Report
• IAL — Instrument Approach and Landing
• LRR — Long Range Radar or Low Cost Radar
• BARTCC — Berlin Air Route Traffic Control Centre
• NCD — No Computed Data
• EGALPA — Egyptian Air Line Pilots Association
• DFTI — Distance-from-Touchdown Indicator
• CPAR — Cockpit Personnel Association of Russia
• IAPA — International Airline Passengers Association
• RCL — Runway Centreline Lighting
• FDAMS — Flight Data Acquisition and Management System
• DFL — Division Flight Level
• DP — Departure procedures
• AOCC — aircraft operator control centre
• EFL — Estimated Flight Level
• ALO — Aviation Logistics Organization
• CDR — Cost Detail Report
• ATCS — Advanced Train Control Systems
• FWCS — Flight Watch Control Station
• JSSI — Joint Safety Strategy Initiative
• SFOR — UN Stabilisation Force (in Bosnia And Herzegovina)
• CTAS — Center-TRACON Automation System
• FFAS — Free Flight Airspace
• TO NL — Takeoff Engine Fan Speed
• ACSEP — Aircraft Certification Systems Evaluation Program
• NSDU — Network Service Data Unit
• GDCE — Ground Data Circuit Terminating Equipment
• KDS — Keyboard Display System
• CAPSIN — CAA Packet Switched Integrated Network
• SBGP — State Block Grant Program
• TORA — Take-Off Run Available
• FPP — Flight Plan Processing
• VTT — Vertical Threshold Test
• NIST — National Institute of Standards and Technologies
• ATCCC — Air Traffic Control Command Centre
• IEPR — Integrated Engine Pressure Ratio

• ANSIR — Advanced Navigation System Inertial Reference
• ATFMO — Air Traffic Flow Management Organisation
• FIO — Flight Inspection Office
• PSC — Program Support Center (US DHHS)
• DEDS — Data Entry and Display System
• LAX — Identifier for Los Angeles
• PIS — Performance Indicators
• FARM — Fielded Automation Requirements Management
• YSAS — Yaw Stability Augmentation System
• ARTES-9 — Advanced Research in Telecommunication
• BTEC — Business and Technician Education Council
• RML — Radar Microwave Link
• APS — Airport Planning Standard
• EATMP — The European Air Traffic Management Programme
• IІSLS — Improved Interrogation Side Lobe Suppression
• SGC — Swept Gain Control
• HATR — Hazardous Air Traffic Report
• FNPT — Flight & Navigation Procedures Trainer
• GTPAPC — Grupo Tecnico de Pilotos Aviadores Profesionales de Cuba
• KIAS — Knots Indicated Airspeed
• MSRT — Mean Services Restoration Time
• HID — Host Interface Display
• APPLA — Associacao Pilotos Portugueses Linha Aerea
• AEM — Airports & Environment Management
• MTCEP — Medium Term Capacity Enhancement Plan
• FI — Iceland Air
• ATCBI — Maintenance of Air Traffic Control Beacon Indicator
• AGC — FAA Office of the Chief Counsel
• AUTODIN — DoD Automatic Digital Network
• MS-DTS — Medium Speed-Data Transmission System
• LAWRS — Limited Aviation Weather Reporting Station
• SNPL — Syndicat National des Pilotes de Ligne
• CMB — Combined
• AUTOVON — DoD Automatic Voice Network
• EHSAT — European Helicopter Safety Analysis Team
• TTW — Time To Waypoing
• ACO — Airspace Co-ordination Order
• RIIEP — Runway Incursion Information Evaluation Program
• EQUATOR — Environment for Qualitative Temporal Reasoning
• ARINC 597A — Enhanced ACARS Avionics
• OFIS — Operational Flight Information System
• NOF — NOTAM Office
• BARS — Behaviour Anchored Rating Scales
• NASP — National Airspace System Plan
• SEU — Software Engineering Unit
• ROD — Record Of Decision
• CAEE — Committee of Aircraft Engine Emissions
• FPR — Flight Plan Route
• EBAA — European Business Aviation Association
• ADS-B — Automatic Data Surveillance Broadcast

• LFP — Low Pass Filter
• ELMS — Electronic Learning Management System
• RMM — Remote Maintenance Monitoring
• CEF — Capacity Enhancement Function
• TT — Total Temperature
• NAT ADS — North Atlantic Automatic Dependent Surveillance
• ARQ — Automatic Response to Query
• EICAS — Engine Indicating Crew Alerting System
• VX — Speed for best angle of climb
• ATCGRAM — Illustration in graph form of the main functional
• FSTS — Federal Secure Telephone Service
• CNSP — Consolidated NOTAM System Processor
• TLPD — Traffic Load Prediction Device
• EGERIA — Engineering Group for European Integration ATC
• ADTI — Additional Technical Information
• MMPI — Minnesota Multi-phasic Personality Inventory
• IAOPA — International Council of Aircraft Owner and Pilot Associations
• CAL — Computer Aided Learning
• AWIS — Airport Weather Information
• NEXTGEN — Next Generation Air Transportation System
• ODID — Operational Input and Display System
• DLAP — Data Link Applications Processor
• BART — Billing Analysis Reporting Tool
• AWTA — Advise at What Time Table
• FAL — Facilitation of International Air Transport
• CFEP — Communications Front End Processor
• ER — En-Route
• EHF — Extremely High Frequencies
• LIS — Logistics and Inventory System
• MMPI — Minnesota Multiphase Personality Inventory
• ARN-V2 — ATS Route Network - Version 2
• SBSR — Space Based Secondary Radar
• FDFMG — Flight Data and Flow Management Group
• ER-PC — En-Route Planner Controller
• LINCS — Leased Interfacility NAS Communications System
• ATM — Air Transport Management
• PRQ — Pilot Request
• EFPD — Extended Flight Plan Description
• EIM — Enosis Iptamenon Michanikon
• EWA — Error Warning Area
• DBCRC — Defense Base Closure & Realignment Commission
• NDB — Non-directional radio beacon
• CASFO — Civil Aviation Security Office
• CPU — Core Processing Unit
• GNAS — General National Airspace System
• VG — Ground Velocity
• OCDB — Oracle Content Database
• FCPU — Facility Central Processing Unit
• IFPA — Instrument Flight Procedures Automation Program
• BUEC — Back-up Emergency Communications

• ATCS — Air Traffic Control Specialist
• AISC — Aeronautical Industry Service Communication
• I&I — Impact & Implementation
• VDP — Visual Descent Point
• AOU — Aircraft Operator Unit
• ARQ — Automatic error Correction
• AAM — Office of Aerospace Medicine
• FDEP — Flight Data Entry and Printout
• ATR — Air Traffic Requirements
• NBAA — National Business Aircraft Association
• AISG — AIS Automation Group
• AGATE — Advanced General Aviation Transport Experiments (NASA)
• MAPE — Mean Absolute Percentage Errors
• IKBS — Intelligent Knowledge Based System
• ADSIA — Allied Data Systems Interoperability Agency
• ACRPWG — Aircraft Crash Recovery Procedures Working Group
• AFC — Air Traffic Control Frequency Change
• DERD-X — Display of Extracted Radar Data - Extention
• SBAS — Space Based Augmentation System
• RWP — Real-Time Weather Processor
• PCA — Propulsion Controlled Aircraft
• MACS — Multiple Access Communications System (Netherlands & FRG)
• ATFR — Air Traffic Flow Regulator
• APANPIRG — Asia/Pacific Air Navigation Planning and Implementation Regional Group
• ALSIP — Approach Lighting System Improvement Plan
• FHA — Functional Hazard Assessment
• FIC — Flight Information Centre
• CMFO — Certificate Management Field Office
• SFMC — Sickness Fund Management Committee
• DASR — Digital Airport Surveillance Radar
• ATMCP — Air Traffic Management Operational Concept Panel
• WXXM — Weather eXchange Model
• MECACON — Middle East Civil Aviation Conference
• EHD — Danger Area
• EWT — EATMS Working Team
• NASPAC — National Airspace System Performance Analysis Capability
• PAD — Packet Assembler Disassembler
• FIAT — First Installed Article Test
• STVAC — Sindicato dos Tecnicos de Voo da Aviacao Civil
• CAWU — Civil Aviations Workers Union
• CAPP — Client Applications Section
• IMO — International Maritime Organisation (UN)
• LM/MS — Low/Medium Frequency
• SNDC — Subnetwork Dependent Convergence Function
• APEC — Aircraft Performance Evaluation & Certification
• WPN — First waypoint in the next sector
• ALSEC — All Sectors
• RNPTF — Required Navigation Performance Task Force
• TI — Texas International
• AERA — Automated Enroute ATC

• ACT — William J. Hughes Technical Center
• AFER — Aircraft Fuel Expense Reconciliation System
• ARTAS TF — ARTAS Task Force
• AL — Allegheny
• RDR — Radar Departure Route
• ATFMC — Air Traffic Flow Management Communications
• SSPA — Solid State Phased Array
• I/A — Incident Analysis
• SUP. PRACT. — Supervised Practices
• ACH — ATC Flight Plan Change
• ATARS — Automatic Traffic Avoidance and Resolution System
• ANPAC — Associazione Nazionale Piloti Aviazione Commerciale
• ARITRM — Assessment of the Radiological Impact from the Transport of Radioactive Materials
• C/M — Carrier-to Multi-Path Ratio
• FRC — Request Full Route Clearance
• CAUTRA — Automated Computer System for Air Traffic
• DEI — Directorate EATCHIP Implementation
• CAPC — Civil Aviation Planning Committee
• RTHL — Runway Treshold Light
• AAT — Associate Administrator for Air Traffic
• NPA — Non Precision Approaches
• RMA — RELIABILITY MAINTAINABILITY AVAILABILITY
• FITS — FAA/Industry Training Standards
• IBP — International Boundary Point
• SECM — Safety and Environmental Compliance Manager
• PANS — Procedures for Air Navigational Services
• SNDCF — Subnetwork Dependent Convergence Facility
• ERAD — En Route Broadband Radar
• ARS — Aeronautical Radio Navigation Service
• RMSPV — RMS peak value.
• URTF — User Requirements Task Force
• MCDU — Multifunction Control Display Unit
• APB — APATSI Project Board
• IHST — International Helicopter Safety Team
• NMAC — Near Mid-Air Collision
• MTCA — Medium Term Conflict Alert
• CMIC — Civil-Military Interface Standing Committee
• ARR — Arrival
• MTA — Military Training Area
• CARAT — Center for Aviation Research and Aerospace Technology
• ACR — FAA Office of Civil Rights
• PTR — Program Technical Report
• CMU — Certificate Management Unit
• LOW — Last Open Water
• NAPA — Namibia Air Line Pilots Association
• ICAAS — Integrated Control in Avionics for Air Superiority
• TUI — Trade Unions International of Transport Workers
• INTC — Intercept
• FDE — Flight Data Exchange
• FPWO — Flight Plan Work Station Operator

• ONL — On-Line Plc (London Stock Exchange [LSE])
• RCO — Remote Communications Outlet
• FFI — Final Factory Inspection
• SVRWX — Severe Weather
• TSG — Training Sub-Group
• VH — Maximum Level-flight Speed with Continuous Power
• AMPL — Association Marocaine de Pilots de Ligne
• MONA — Monitoring Aids
• RMCS — Remote Monitoring and Control System
• RGS — Remote Ground Station
• LRRAP — Long Range Resource Allocation Plan
• C/D — Capacity demand ratio
• HFSG — Human Factors Study Group
• OAW — Off-Airway Weather Station
• DSR — Display System Replacement
• IASA — International Air Safety Association
• AW/P — Active Way Point
• EGU — European Gliding Union
• ATOP — Advanced Technologies and Oceanic Procedures
• ROT — Runway Occupancy Time
• IVT — Interactive Video Teletraining
• MMAC — Mike Monroney Aeronautical Center
• GWDS — Graphic Weather Display System
• CNACC — Common National Area Control Centre
• ESDF — Environmental Static Data Processing and Distribution Function
• AMOC — Alternative Methods of Compliance
• NEAN — North European ADS-B Network
• CANDI — Civil Aviation Network Data Interchange
• GANP — Global Air Navigation Plan
• EDS — Enterprise Database System
• AAA — Aesean Airline Association
• EWG — Executive Working Group
• ANSPS — Air Navigation Service Providers
• TYP — Aircraft Type
• MOA — Memorandum of Understanding
• ATV — Associazione Tecnici di Volo Aviazione Civile
• DED — Directorate of European Air Traffic Control Harmonisation and Integration Programme Development
• VCS — Voice Communications Systems
• RCE — Radio Control Equipment
• CAAS — Certification of Aeroplane Automatic Systems
• FKFE — Forum Komunikasi Flight Engineers
• EASS — European Aviation Safety Seminar
• IFPD — Individual Flight Plan Data
• EAA — European Aviation Agency
• BALPA — British Air Line Pilots Association
• HSM — High Speed Modem
• IFALPA — International Federation of Air Line Pilots Associations
• DTW — Dual Tandem Wheels
• PDAR — Preferential Arrival And Departure Route
• FPS — Military Primary Radar

• DDU — Display Drive Unit
• EACG — European ATFM Consultation Group
• AOCU — aircraft operator control unit
• RNC — Required Navigation Capability
• CALM — Computer Assisted Landing Management System
• DGPS — Differential GPS
• AAP — IFALPA Accident Analysis & Prevention Committee
• CLTP — Connection Less Transport Protocol
• ARLO — Air Liaison Officer
• UAC — Upper Area Control
• DPA — Distinguishing Path Attribute
• GNLS — GNSS Navigation and Landing System
• NADIN II — National Airspace Data Interchange Network II
• PQM — Project Quality Manager
• SMMC — System Maintenance Monitor Console
• DEE — Data Entry Equipment
• SRQ — Slot Request
• FIAO — Flight Inspection Area Office
• FDG — Flight plan Data Generator
• FLDS — Flight Loads Data System
• RW — Runway
• KSN — Knowledge Services Network
• ANC — Alternate Network Connectivity
• BASIS — British Airways Safety Information System
• CDTS — Console Detailed Technical Specification
• PBS — Preferential Bidding System
• DNTKFX — DownTrack Fix
• AIRMET — Airmen's Meteorological Information
• AQAFO — Aeronautical Quality Assurance Field Office
• NFP — NIMS Premier Facility
• FIG — Flight Inspection Group
• CC&O — Customer Cost & Obligation
• STANLY — Statistics and Analysis
• ASC — Aviation Safety Council
• MALSF — Medium-Intensuty Approach Light System with Sequenced Flashers
• QUESTIONAIR — Computer-based ATM questions bank
• CMA — Context Management Application
• ANS — Air Navigation Service
• CASI — CFMU Aircraft Situation Image
• LBR — LAN Based Random Access Plan Position Indicator
• N1 — Gas generator speed
• FPL — Filed Flight Plan
• FTS2000 — Federal Telecommunications System 2000
• PHL — Preliminary Hazard List
• MCDU — Multipurpose Control Display Unit
• DISCR — Discrepancy
• ILSP — Integrated Logistic Support Program
• IAOA — Indicated Angle-of-Attack
• SOF — Stand-alone Operations Facility
• ACYC — Anticyclonic

• TWN — Tactical Weather Network
• LIL — Light Intensity Low
• IAC — Integrated Avionics Computer
• G/S — glideslope
• ETOT — Estimated Take Off-Time
• TTALPA — Trinidad & Tobago Airline Pilots' Association
• FED — Fonds Europ?en de D?veloppement
• ITU-T — International Telecommunications Union
• ICIP — Inital CIP
• DSP — Departure Sequencing Program
• TTR — Target Tracking Radars
• ESEC — En Route Broadband Secondary Radar
• FRD — Facility Reference Data
• VFXR(R) — Flap Retraction Speed
• IARR — IFPS ARR Message – Individual Arrival Message
• KCAS — Calibrated Airspeed expressed in Knots
• ATMG — Airspace and Traffic Management Group
• MTR — Military Training Route
• ASV — Airline Schedule Vendor
• ARM — Air Request Message
• DGRS — Dangerous Goods Regulations
• NZ-ALPA — New Zealand Air Line Pilots Association
• NASR — National Airspace System Resources
• DNL — Day-Night Equivalent Sound Level
• HCAP — High Capacity Carriers
• CFCS — Central Flow Control Service
• LIALPA — Leeward Islands Air Line Pilots' Association
• BASIC — Basic Contract Observing Station
• ERIT — Enhanced Radar Intelligent Tool
• ADIN — AUTODIN Service
• DOVE — DSR Oceanic VSCS En Route Implementation Working Group
• FAAAC — FAA Aeronautical Center
• IFFITAF — IFPS-DBE Functional Interface System Task-Force
• DEG — Data Environment Generator
• HBN — Hazard Beacon
• EATM — European Air Traffic Management Programme
• HUMR — Human Resources
• PAMS — Published AIP Management Systerm
• IAAE — International Association of Airport Executives
• PPIMS — Personal Property Information Management System
• RSC — Rescue Sub Centre
• FMIS — FTS2000 Management Information System
• CUP — Computer Utility Program
• SELF — Simplified Short Approach Lighting System With Sequenced Flashing Lights
• DR — Dead Reckoning Navigation
• AFSOU — AFS Field Office Unit
• FREER — Free Route Experimental Encounter Resolution
• CPC — Certified Professional Controller
• HFIAI — Human Factors in Incident and Accident Investigation
• TWI — Terminal Weather Information

• TOA — Terms Of Agreement
• FMO — Facility Management Office
• FADE — FAA/Airline Data Exchange
• ISPACG — Informal South Pacific Air Traffic Services Co-ordinating Group
• AOA — Aircraft Operating Agency
• WSPD — Wind Speed
• AGAS — European Action Group for ATM Safety
• NDNB — NADIN II
• VDL — Very High Frequency Data Link
• MNCC — Multinational Coordination Centre
• SFPL — Short Flight Plan
• HLDC — High Level Data Link Control
• SNR — Signal-to-Noise
• ENAV — En Route Navigational Aids
• SOIWR — Simultaneous Operations on Intersecting Wet Runways
• NPIAS — National Plan for Integrated Airport Systems
• MAP — Missed APproach
• RAT — Risk Assessment Team
• NR — Noise Rating
• VAQ — VHF Avionics Qualification
• ATODN — AUTODIN Terminal
• EARC — Elimination of Ambiguity in Radiotelephony Call Signs
• CLB — Climb Detent of the Thrust Levers
• MCAS — Marine Corps Air Station
• EPMB — EASIE Programme Management Board
• AECG — ACAS Evaluation and Co-ordination Group
• GDM — Graphical Information Category Dynamic Maps
• LFV — Luftfartsverket
• RIRT — Russian Institute of Radio Navigation and Time
• CNMPS — Canadian Minimum Navigation Performance Specification Airspace
• ECAM — Electronic Centralised Aircraft Monitoring
• ARTEMIS — An ESA experimental telecommunications
• DVRS — Digital Voice Recorder System
• CTU — Cabin Telecommunications Unit
• ADI — Attitude Director lndicator
• IPDS — Instrument Procedure Development System
• FINO — Flight Inspection National Field Office
• SHACC — SHAPE Airspace Coordination Centre
• DECR — Decrement
• IAMP — Initial Approach Waypoint
• ERMS — Environmental Remote Monitoring System
• FOMS — Flight Operations Management System
• VDEV — Vertical Deviation
• ART — Analysis and Replay Tool
• FRONT — Frontispiece
• AUS-ALPA — Australian Air Line Pilots Association
• GNE — Gross Navigational Error
• COC — Combat Operations Centre
• MASS — Maintenance Automation System Software
• FWS — FAA Weather Service

• FAIRS — Federal Aircraft Management Information System
• CEFA — Committee for Environmentally Friendly Aviation
• EVAS — EATMS Validation Strategy
• EVFR — Electronic Visual Flight Rules
• DOI — Department Of Industry
• GAAA — General Aviation Activity and Avionics
• EAT — Expected Approach Time
• CAMPS — Computer Aided Message Processing System
• AOT — Airport Operations Team
• EFR — Extended Flight Rules
• IFCP — Interfacility Communications Processor
• QDM — Magnetic zero wind heading
• ICMS — Integrated Control and Monitor System
• CNATCC — Common National Air Traffic Control Centre
• XPD — ATC Transponder
• LIRL — Low Intensity Runway Lights
• FPT — Flight Plan Terminal
• GAA — General Aviation Activity
• DDM — Data Display Monitoring
• AFRES — Air Force Reserve Station
• FILTIM — Date and Time Stamp of original Message
• INTERPOL — International Criminal Police Organisation
• CCAA — Chinese Civil Aviation Association
• SAGSTRAM — Standing Advisory Group on the Safe Transport of Radioactive Material
• BPB — Business Plan Builder
• EIPA — European Institute of Public Administration
• VOT — VOR airborne equipment test facility
• HSI — Horizontal Situation Indicators
• SNET — Safety Nets
• CODA — Central Office of Delay Analysis
• SAMS — special-use airspace management system
• DFIS — Data Link Flight Information Service
• MFJ — Modified Final Judgment
• ATSB — Air Transportation Stabilisation Board Australian Transport Safety Bureau
• VLS — Lowest Selectable Airspeed
• ARQ — Automatic Request Repeat
• APIRG — African Planning and Implementation Regional Planning Group
• DSG — Data Services Group
• AWIR — Automatically generated What-If Re-routing
• ERFA — Conference on the Economics of Route Air
• EPSU — European Public Service Union
• ETFMS — Enhanced Tactical Flow Management Systems
• SAPPHIRE — Satellite and Aircraft Database Programme
• FO — Free Out
• EPB — EATCHIP Project Board
• AOA — Aircrew Officers Association
• SEAC — Service d'Etat de l'Aviation Civile
• ATREP — Air Traffic Representative
• FI/T — Flight Inspection Tempray
• JAA — Joint Aviation Authority

• ESYS — En Route Equipment Systems
• RTRD — Remote Tower Radar Display
• FOTS — Fiber Optics Transmission System
• MNPSA — Minimum Navigation Performance Specification Airspace
• JAC — Joint Airmiss Committee
• PIDP — Programmable Indicator Data Processor
• RCIU — Remote Control Interface Unit
• CLEEN — Continuous Lower Energy Emissions and Noise
• BWP — Budget and Work Programme Planning
• M/T — Medium-Term
• ATCAP — Air-Traffic Control Automation Panel
• LIT-ALPA — Lithuanian Airline Pilots Association
• PROV — Provisional
• AGE — IFALPA Aerodrome & Ground Environment Committee
• CRC — Control and Reporting Centre
• OM — Outer Marker (ILS)
• ATMRPP — ATM Requirements and Performance Panel
• BA — Budget Analyst
• ARN-V3 — ATS Route Network - Version 3
• IRMP — Information Resources Management Plan
• M/V — Motor Vessel
• ANT — Airspace and Navigation Team
• QNE — Altimeter subscale set to 1013,2 hectopascals
• ATG — Air Traffic Generator
• ESE — East-South-East
• HCAA — Hellenic Civil Aviation Authority
• IPG — Integration Project Group
• WSR — Wet Snow on Runway
• HERA — Human Error in ATM
• DEEC — Director of the Eurocontrol Experimental Centre
• CEFA — Co-operation for Environmentally Friendly Aviation
• NEM — Noise Exposure Map
• IFOG — Interferometric Fiber Optic Gyroscope
• FFTF — Future Functions Task Force
• FIXING — Chartering a Vessel
• VTK — Vertical Track Distance
• EAD — Emergency Airworthiness Directive
• FSEP — Facility, Service, and Equipment Profile
• FFLA — Flexible Flight Level Assignment
• ADSU — ADS Unit
• ICW — Intercoastal Waterway
• CASA — Computer Assisted Slot Allocation
• OFDPS — Offshore Flight Data Processing System
• MTTRLRU — Mean Time to repair LRU
• RFF — Rescue and Fire Fighting
• ITEB — Information Technology Executive Board
• NSSG — Navigation and Separation Sub-Group
• TC — Transit Corridor
• FIRPS — Flight Inspection Reports Processing System
• AWTT — Aviation Weather Technology Transfer

• CLX — OCM Clearance Message
• SCAA — Swedish Civil Aviation Administration
• EPS — Engineered Performance Standards
• AVLC — Aviation VHR Link Control
• FIRMR — Federal Information Resource Management Regulation
• VHF — Very-High Frequency
• MDCRS — Metereological Data Collection and Reporting System
• FISDL — Flight Information Services Data Link
• VSD — Vision and Strategy Document
• NPM — NAS Program Manager/Management
• AWS — Air Weather Station
• JPEG — Joint Photographic Expert Group
• ERA — European Regional Airlines Organisation
• FRF — Further Route of Flight
• CESC — Chief Executive Standing Conference
• VFXR(X) — Flap Extension Speed
• NATCO — National Communications Switching Center
• HASA — Helicopter Association of Southern Africa
• RMLS — Remote Monitoring and Logging System
• PIAC — Peak Instantaneous Aircraft Count
• DCD — Double Channel Duplex
• API — Advanced Passenger Information
• HDB — Historical Data Base
• HEO — Highly-inclined Elliptical Orbit
• APM — Accident Prevention Manual
• PZ 90 — Parameters of Earth 1990
• E/O — Engine-Out
• CRM — Crew Research Management
• HCD — Hard Copy Device
• PAAST — Pan American Aviation Safety Team
• CARTS — Common Automated Radar Terminal System
• CARAT — Computer-Aided Route Allocation Tool
• DLSG — Data Link Sub Group
• KALPA — Kenya Air Line Pilots Association
• VSTOL — Vertical or Short Takeoff and Landing
• ANT — Air Navigation Team
• AIRCOM — Air Communications
• PAA — Plot Accuracy Analysis
• IIS — Internal Information System
• GOMP — Gulf of Mexico Program
• AOWP — Airport Operations Work Plan
• DIR/INTC — Direct Intercept
• LTSS — Long Term Systems Studies
• CRAFS — Civilian Request for Airspace and Flight Data System
• TOS — Traffic Orientation Scheme
• ECON — Economy
• DORA — Directorate Operational Research and Analysis
• VVD — Vertical View Display
• DGCA — Director-Generals of Civil Aviation
• DAC — Direction Aviation Civile

• ALMC — Airlift Movement Cell
• ICMM — Integrated Capability Maturity Model
• AIRSTRM — Assuring the Implementation of Regulations for the Safe Transport of Radio-active Materials
• CRE — Class Rating Examiner
• MU — Management Unit
• ISRAEL FE — Israel Flight Engineers
• LFC — Air Defence Centre
• DOP — Daily Operations Plan
• NUA — Network User Addresses
• VSI — Stalling Speed in a Specified Flight Configuration
• DSCS — Digital Satellite Compression Service
• IRAS — Interactive Radar Analysis System
• IFA — International Federation of Airworthiness
• FDT — Flight Deck Training Program
• AVPAC — Aviation Very High Frequency Packet Communication
• R/T — Radio Telephonic Transmission
• CWS — Collision Warning System
• ATAR — Automatic Air Reporting
• NUP — NEAN Update Programme
• HVY — Heavylift Cargo Airlines
• ERABIS — Route Invoicing System
• ESARR — Eurocontrol Safety Regulatory requirements
• LSMS — Line Station Maintenance Section
• ISC — Initial System Capability
• MDT — Maintenance Data Terminal
• X25 — Standard protocol in telecommunications
• EUROCAE — European Organisation for Civil Aviation Equipment
• CMIP — Contract Management and Inspection Procedures
• IPACG — Informal Pacific Air Traffic Services Co-ordinating Group
• CIP — Convergence and Implementation Programme
• TFM — Traffic Flow Management
• SNICF — Subnetwork Independent Convergence Function
• ANCONF — Air Navigation Conference
• CFR — Crash Fire Resque
• TSRV — Transport System Research Vehicle
• HCI — Human Computer Interface
• OCS — Oceanic Control System
• JL — Japan Air Lines
• E/D — End-Of-Descent
• M1FC — Model 1 Full Capacity
• BAD — Budget Analysis Database
• CLOP — Criminal Liability of Pilots
• LFR — Low-frequency Radio Range
• HBF — Harmless Bulk Fertilizer
• RDL — Radial
• FPM — Flight Progress Message
• HIPS — Highly Interactive Problem Solver
• IDAT — Interfacility Data
• SUP — Supplement
• SBU — Service Business Unit

• FDMSAW — Fully Digital Minimum Safe Altitude Warning
• FSPD — Freeze Speed Parameter
• XPDR — Transponder
• EPC — Enhanced Planning and Coordination function
• MBST — Microburst
• ETMS — Enhanced Traffic management Systems
• LFU — Late Filer and Udater
• COCOS — Computer Controlled SSR Code Assignment
• RRCS — Remote Radio Control System
• PROSIT — Problem Situation
• NPE — Non-primary Airport Entitlement
• DGP — ICAO Dangerous Goods Panel
• BIP — Backup Interface Processor
• EVS — Enhanced Visual System
• JRC — Joint Resources Council
• LAU — Local Approach Unit
• MUDPIE — Multiple User Data Processing Interactive Environment
• LDA — Landing Distance Available
• EPHOS — European Handbook for Open Systems
• RPZ — Runway Protection Zone
• SIE — Standard Interface Equipment
• LFL — Last Flight Level
• BRKG — Braking
• MIO — Manufacturing Inspection Office
• RAC — Rules of the Air and Air Traffic Services
• FACTS — Future Area Control Tools Support
• TMPA — Traffic Management Program Alerts
• SET — Singe Engine Turbo-Prop
• IPRT — Internal Processing Response Time
• FSL — Full Stop Landing
• IFLIPS — Integrated Flight Prediction System
• JAR — Joint Airworthiness Regulations
• MNPSA — Minimum Navigation Performance Specifications Airspace
• FOW — First Open Water
• FISC — Flight Information Services Communications
• CFII — Certified Flight Instructor Instrument
• CAN PROJ. — Croatian Air Navigation Project
• CPCS — Certified Professional Controllers
• IGIA — Interagency Group on International Aviation
• FI/P — Flight Inspection Permanent
• CVSRF — Crew-Vehicle Simulation Research Facility
• MOR — Military Operational Requirements
• RCCC — Regional Communications Control Center
• DRU — Data Retrival Unit
• PROG — Progress Page on MCDU
• ANM — Northwest Mountain Region
• WIST — Study Group on Low Level Wind Shear Turbulence
• SATSA — Swedish ATS Academy
• HFTE — Human Factors Testing and Evaluating
• CPL — Commercial Pilots License

• VA — Heading to an Altitude
• FMS — Fathoms
• FAR — Federation Aviation Regulations
• LDIN — Lead-in Lights
• JSRA — Joint Sponsored Research Agreement
• QFA — Qantas
• HERAS — Hellenic Radar System
• CDA — Continuous Descent Arrival
• VSP — Variable System Parameter
• HUPER — IFALPA Human Performance Committee
• AOP — NAS Operations
• CSR — Communications Service Request
• DW — Dual wheels
• CWO — Contract Weather Observer
• AQM — Aircom Quality Performance
• CAO — Computer Assisted Operations
• IFEA — Indian Flight Engineers Association
• FCM — Flight Schedule Monitor
• EHR — Restricted Area
• SASS-S — Surveillance Analysis Support System - Sensor
• AMC — Mike Monroney Aeronautical Center
• DFM — Departure Flow Management
• ARTAS — Air Traffic Management Surveillance Tracker and
• JAR — Joint Aviation Requirements
• ESCAPE — Eurocontrol Simulation Capability and Platform for Experimentation
• MSGDLP — Mode S Ground Data Link Processor
• LATCC — London Air Traffic Control Centre
• ELM — Extended Length Message
• IOCS — Interim Oceanic Control System
• PFLEXT — Probability of Failure Localisation, external
• DRA — Defense Research Agency(UK)
• RPF — Rapid Prototyping Facility
• OPSW — Operational Switch
• CAMOS — Central ARTAS Maintenance & Operational Support
• CED — Categorical Exclusion Determination
• DPE — Digital Plot Extractor
• CSM — Consultant Services Meeting
• CP — Control Panel
• SATCNS WG — Satellite CNS Work Group
• HERMES — Harmonised En-Route Metering and Spacing
• HIDE — Harmonised, Integrated Development Environment
• MSGTXT — Message Text
• ATAFG — African Air Traffic Analysis and Forecasting Group
• RMPS — Radio Management Panels
• ARCP — Aerodrome Reference Code Panel
• CEI — Cabin Equipment Interfaces
• IFP — Integrated Flight Plan System
• ODIAC-TF — Operational Development of Initial A/g data Communications Task Force
• IAARC — International Administrative Aeronautical Radio Conference
• PRFG — Aerodrome Partially covered by Fog

• EATN — Experimental Aeronautical Telecommunication Network
• ASD — Air Situation Display
• HUGS — Head-Up Guidance Systems
• PS — Pacific Southwest Airways
• RBC — Rotating Beam Ceilometer
• LEN — Lenght
• LFDS — Large Facility Demarcation System
• SAAM — System for Assignment and Analysis at a Macroscopic level
• PDRP — Problem Detection and Resolution
• FAPM — FTS2000 Associate Program Manager
• CF — Change frequency to
• NAMS — NADIN IA
• FLOE — Informal Flow Control Europe East
• HAW — Horizontal Aid Window
• W2 — World Airlines
• TLX — Task Load Index
• DISU — Drug Investigation Support Unit
• ATCSQ — ATC Safety Questionnaire
• PSR — Project Status Report
• DEMO — Demonstration of Ecosystem Management Options
• CARS — Civilian Air Routes System
• CSTA — Chief Scientist and Technical Advisor
• RTCA — Requirements and Technical Concepts for Aeronautics
• HA — Hatch
• VNV — Vereniging van Nederlandse Verkeersvliegers
• HDBK — Handbook
• SBT — Scenario-Based Training
• TWR — Air Traffic Control Tower
• LIP — Limited Installation Program
• WPP — Working Position Processor
• JU — JAT – Yugoslavian Airlines
• IPL — Intermediate Flight Plan
• EATF — EATMS Architecture Task Force
• ASW — Southwest Region
• IALPA — Irish Air Line Pilots Association
• IMPL — Implementation Language
• VPAE — Vertical Profile Angle Error
• FENA — Flight Engineers and Navigators Association
• KAL — Korean Airlines
• CIMO — Committee for Instruments and Methods of Observation
• RAPCO — Radar Approach Control
• SSDD — Sub System Design Document
• TSA — Temporary Segregated Area
• GMS — Grants Management System
• DOF — Digital Obstacle File
• TWG — Training Working Group
• MSR — Monthly Status Report
• RDDII — Radio Digital Distance Magnetic Indicator
• GLSU — GPS Landing System Unit
• GTM — General Terrain Model

• GAPAN — Guild of Air Pilots & Navigators
• EIF — Extended Interface Function
• NGATM — New Generation Air Traffic Manager
• VTN — Voice Telecommunications Network
• FC — Course from a Fix to a Distance
• CATTS — Computerized Air Traffic Training System
• TRANSSAC — Transport Safety Standards Advisory Committee
• CMIC — Civil/Military Interface Committee
• CDPS — Central Data Processing System
• ASW — Air Situation Window
• ALIM — Altitude Limit
• CRATF — Communications Requirements Analysis Task Force
• GFM — Graphical Information Category Fixec Maps
• TMC — Traffic Management Coordinator
• IFIM — International Flight Information Manual
• AOPG — Aerodrome Operations Group
• GOMS — Goals, Operators, Methods, Selection model
• EUR-RAN — European Regional Air Navigation
• EBUS — Enhanced Backup Surveillance
• RPR — Re-Routing Proposal Message
• GERT — German NEAN Project Team
• FIS — Flight Information Services
• DLRS — Digital Legal Recording System
• FPDETF — Flight Plan related Data Exchange Task Force
• IND — Indication
• OUNS — Operational Navigation System
• EBP — Emergency Bypass Processor
• METAG — MET Advisory Group
• PTT — Press to Talk
• DEPCOS — Departure Coordination System
• ATAFF — Air Traffic Arbitrated Free Flight
• CPR — Conflict Prediction and Resolution
• AOP — Aeronautical OSI Profile
• PATS — Precision Approach Tracking System
• AVENUE — ATM Validation Environment for Use towards
• GA — go-around
• DALPA — Danish Air Line Pilots Association
• GLONASS — Global Orbiting Navigational Satellite System
• ISBP — Information Security Business Portal
• IWGDS — Interim Weather Graphic-Display System
• CFCF — Central Flow Control Facility
• IWP — Intermediate Waypoint
• ACP — Accept Message
• CREME — Creating the EATCHIP Management Environment
• ERV — ECM Resistant Voice
• SIMMOD — Airspace and Airport Simulation Model
• COSYNUS — AIRBUS Training Database
• CASTA — Controller Associate for Strategic and Technical Advice
• ATCAS — ATC Automated System
• OATS — Office Automation Technology Services

• TDM — Total Delay in Minutes
• MATSE — Meeting on the Air Traffic System in Europe
• ERNP — European Radio Navigation Plan
• WPL — Work Package Leaders
• GMC — Ground Movement Control
• ISO — International Standards Organisation
• POT — Point-of-Termination
• OSIP — Office Safety Inspection Program
• DSB — Double Side Band
• CRAF — Central Reservation Airspace Facility
• CLRS — Clear and Smooth
• D — Danger Area
• VRRS — Voice Recording and Display System
• CEU-E — Central executive unit with Responsibility for Eastern Europe
• FIPS — Federal Information Publication Standard
• VMAX — Basic Clean Aircraft Maximum CAS
• DMAS — Director Maastricht Control Centre
• MUAC — Military Upper Area Control
• MCI — mode C intruder
• OJTI — On-the-Job-Training Instructor
• OOR — Outline Operational Requirement
• LAC — Logical Access Control
• ARM — Airspace Risk Model
• IVSN — Initial Voice Switched Network
• VSA — By Visible reference to the ground
• RCC — Rescue Co-ordination Centre
• PENS — Pan-European Fixed Network Service
• RLSM — Reduced Lateral Separation Minimum
• WEAAP — Western European Association for Aviation Psychology
• NCOP — Entry Coordination Point
• CPI — Californian Psychological Inventory
• TDA — Track Detection Analysis
• JSP — Joint Services Publication
• ATISR — ATIS Recorder
• ARINC539A — Airborne 400 Hz AC Tape Reproducer
• TLA — Title Line Area
• EMPS — En Route Maintenance Processor System
• LATCO — Licensing of Air Traffic Control Officers
• RCL — Radio Communications Link
• GIVD — Gravity Induced Vestibular Dysfunction
• TEN-T — Trans- European Network - Transport
• DFL — Dynamic Flight Leg
• GSP — Good Safe Port
• LUG — Leerdam Users Group
• TMA-TC — TMA Tactical Controller
• SUC — Start-Up Controller
• AFDSS — Air Fix Data Sub Set
• LFHB — Low Flying Handbook
• U/S — Unservicealble
• IRPL — Internal Repetitive Flight Plan

• CAM — Conflict Alert Message
• HEL — IFALPA Helicopter Committee
• ACR — Air Carrier
• FPLA — Flight Plan Application Section
• FDM — Flight Data Message
• NRC — Non-Recurring Charge
• CR — Course to a VOR Radial
• RSSP — Radar Systems Specialist Panel
• SITNA — Service Technique de la Navigation Aérienne
• HWAS — Hazardous In-Flight Weather Advisory
• CTMA — Center Traffic Management Advisor
• FDFM — Flight Data and Flow Management
• EDD — Electronic Data Display
• FIW — Flight Input Workstation
• AFD — Associated Flight Details
• TMRR — Temporary Minimum Disk Route
• EPSS — Enhanced Packet Switched Service
• LDGNSS — Local Differential Global Navigation Satellite System
• DAISY — Distributed Airport Information System
• CMTP — Common Medium Term Plan
• AOS — FAA Operational Support Service
• RNMP — Replacement of the Nautical Mile Panel
• FMA — Final Monitor Aid
• EUROPILOTE — European Organisation or Airline Pilots Association
• IAOPA — International Aircraft Owners and Pilots Associations
• NODE — NATS Operational Display Equipment
• FDDI — Fiberoptical Digital Data Interchange
• RDG — Radar Data Generator
• CZ-ALPA — Czech Air Line Pilots Association
• EGNOSS — European Geostationary Navigation System Overlay
• NOREP — National Oceanic Review and Enhancement Program
• IFE — In-Flight Entertainment
• GR — Geographical Rotation
• ASO — Southern Region
• SSR — Solid State Relay
• MTTRSRU — Mean Time to repair SRU
• HARA — Helicopter Airborne Radar Approaches Study Group
• JACC — Joint Area Control Centre
• CPL — Customer Priority Listing
• F/G — Foreground
• MFT — Meter Fix Crossing Time/Slot Time
• RMCF — Remote Monitor Control Facility
• TAR — Terminal Area Radar
• EHQ — Eurocontrol Headquarters
• COSAAC — Common Simulator to Assess ATMF Concepts
• RCAT — Route Catalogue
• VAP — Visual Aids Panel
• DNAS — ECAC Directors of Air Navigation
• MMS — Maintenance Monitoring System
• REDMACS — Research, Engineering, and Development Monitoring, Analysis and Control System

• OEP — Operational Evolution Plan
• VNE — never-exceed speed
• CENA — Centred Études de la Navigation Aérienne
• SAI — Safety Attribute Inspection
• TUM — Time Update Message
• OMD — Operational Management Domain
• ARC — Area Chart
• PWI — Proximity Warning Indicator
• FIT — Flight Integration Task
• SRG — Safety Regulation Group
• PCN — Project Control Number
• ALB — Alternative Label
• BSP — Aircraft Parameter Downlink
• FAN — False Alarm Normaliser
• AIM-FANS — Airbus Interoperable Modular FANS
• DMA — Divergence Monitoring and Alert
• RMSC — Remote Monitoring Subsystem Concentrator
• CRD — Conflict Risk Display
• ECOM — En Route Communications
• OBS — omni-bearing selector
• IPV — Instrument Approach with Vertical guidance
• ECASS — European Committee on Aircrew Scheduling and Safety
• EROC — Study Group on En-Route Obstacle Clearance Criteria
• NLM — Network Loadable Module
• RLMS — Replacement Lamp Monitoring System
• CMSND — Commisissioned
• RCAG — Remote Communications Air/Ground
• IPMS — IT Program Management System
• VLO — Maximum Landing Gear of Operating Speed
• SSRBRIGH — Highlight set code to target
• CWDPS — Central Weather Data Processing System
• SCAT-1 — Special Category 1
• CAPA — Cayman Airline Pilots Association
• PCPS — Purchase Card Processing System
• AMC — Air Traffic Control Microphone Check
• PHARE — Program for Harmonized ATC Research in Europe
• RMCC — Remote Monitor Control Center
• NSWRH — Nws Regional Headquarters
• CCCH — Central Computer Complex Host
• UVA — Utility Value Analysis
• ITI — Italian Interface
• DAA — Dynamic Airspace Allocation
• QNH — Quantity
• BERMS — Beacon Environmental Remote Monitoring Subsystem
• GMD — General Meeting of Directors
• NAVAID — Navigation Aid
• RIP — Runway Incursion Program
• RSCD — Runway Surface Condition
• TWR — Tower Control Unit
• S/C — Step Climb

• PML — Project Material List
• ATCOTS — Air Traffic Control Optimum Training Solutions
• FDR — Federal Data Registry
• SCAA — Slovenian CAA
• CMIS — Certificate Management Information System
• ONP — Open Network Provision
• VFRG — Visual Flight Rules Group
• CFWP — Central Flow Weather Processor
• GOTV — GNSS Operational Test and Validaton
• EVCS — Emergency Voice Communications System
• FACTOR — Development of Functional Concepts from the EATMS Operational Requirements
• ERCG — External Relations Coordination Group
• TMZ — Transponder Mandatory Zones
• MTCS — Modular Terminal Communications System
• R1 — Minor Repairs
• LDT — Logistic Delay Time
• CTC — Centralized Train Central
• TIZ — Traffic Information Zone
• RVSM — Reduced Vertical Separation Minima
• ARA — Administrator for Research and Acquisition
• CAMUS — Czech Automated Multi radar System
• CLNS — Connection-Less Network Service
• FFU — Fire Fighting Unit
• EGATCM — Eurocontrol Guild of Air Traffic Controllers - Maastricht
• SEPLA — Sindicato Espanol de Pilotos de Lineas Aereas
• RMCDE — Radar Message Conversion and Distribution Equipment
• NAVAIDS — Navigational Aids
• EPAC — Eurocontrol Programme Appraisal Committee
• EAN — European ATSO Network
• TCPU — Touch Panel Central Processing Unit
• DMAN — Departure Manager
• TMSSG — Top Management Structure Sub-Group
• ITSTC — Information Technologie Steering Committee
• ODP — ATM Operational Requirements & Data Processing
• DDL — Data Description Language
• FBS — Fall Back Switch
• EAP — EATCHIP Alignment Process
• KAR — Karlsruhe
• OUR — CFMU Operational User Requirements
• GASAG — Global Aviation Security Action Group
• NWSR — NWS Weather Excluding NXRD
• ZNY — New York Air Route Traffic Control Center
• CMA — Central Monitoring Agency
• SSRC — Current SSR Code
• CEU-W — Central executive unit with Responsibility for Western Europe
• XASP — Extended AIRCOM Service Processor
• PAMC — Provisional Acceptable Means of Compliance
• PATCO — Professional Air Traffic Controllers Association
• ISR-ALPA — Israel Air Line Pilots Association
• JOT — Joint Operational Team

• EPD — EATCHIP Planning Division
• AT — at an altitude
• SICT — System Implementation Coordination Team
• QHN — Altimeter Sub-scale setting
• OMIC — Operations Manager in Charge
• RASP — Regional Airport System Plan
• FIRST — Flexible Independent Radar Skill Trainer
• OWN — TCAS II equipped aircraft - source of TCAS event
• SICTA — Italian Consortium for the Applied ATM Research
• METODA — Meteorological Observations and Information Distribution Arrangements for Local Aeronautical Users
• MSDS — Microsoft Data Engine
• ECA — Executive Controller Assistant
• TAP — Terminal Area Productivity
• DPC — Defence Planning Committee
• FFRDC — Federal Funded Research and Development Center
• Z — Equivalent to Greenwich Mean Time
• RCRT — Refresh Cycle Response Time
• LAGPS — Local Area Global Positioning System
• WTR — Water on Runway
• IFPU — IFPS Unit
• WRC — World Radio-communications Conferences
• MIW — Message in Window
• SEIFR — Single-Engine Instrument Flight Rules
• FPA — Finnish Pilots Association
• I/R — Interrogator/Responsor
• CHART — A map used by navigators
• DPL — Displayed Flight Plan
• RBPM — Remote Beacon Performance Monitor
• ASH — FAA Office of Security & Hazardous Materials
• SASP — ICAO Separation and Airspace Safety Panel
• KVDT — Keyboard Video Display Terminal
• FUS — Functional Units or Systems
• MOPS — Minimum Operational Performance Standards
• OIS — OGE Input Simulator
• SSALF — Ssals with Sequenced Flashers
• MOCC — Mid-States Operations Control Center
• FDIOR — Flight Data Input/Output Remote
• OPSP — Operational Panel
• EGIP — European Gateway for INO Provision
• LCR — Lowest Current Rate
• DLAP — Down Linked Aircraft Parameters
• CPD — Coupled
• IVR — Immersive Virtual Reality
• PSD — Process Support Document
• COM — Cockpit Operating Manual
• SIC — Service Initiation Charge
• JOINT — Joint Operational Incidents Training
• CP — Circular Polarisation
• MWP — Meteorological Weather Processor
• ASM — Air Space Management

• CSER — Contractor Site Engineering Report
• IAS — Indicated AirSpeed
• MMO — Mach Max Operating
• DME/P — Precise DME
• CYG — Cyclonic
• CP — conflict probe
• ITID — Individual Training- Instructor-dependent
• VFOP — Visual Flight Rules Operations Panel
• ALT — Airborne Link Terminal
• CDS — Controller Display Support
• CATSA — Croatian air Traffic Services Authority
• LRC — Long Range Cruise
• MTSAT — Multi-functional Transport Satellite
• TCDP — Technical Control Data Processor
• CDR — Conditional Route
• NFDD — National Flight Data Digest
• FLOW — Informal Flow Control Europe West
• ARM — FAA Office of Rulemaking
• S/S — Sector Suite
• AISAP — AIS Automation Specialist Panel
• IFD — Initial Functional Description
• VSIG — Vertical Separation Implementation Group
• COSU — Core Systems Unit
• OLS — Off Line System
• DEP-VKL — Departure Controller
• LPA — Lebanese Pilots Association
• IAP — Instrument Approach Plate
• MISO — Manufacturing Inspection Satellite Office
• CARD — Conflict and Risk Display
• APG — Asosiasi Pilot Garuda
• CDS — Central Dispatch System
• MLS — Microwave Landing Systems
• VIVO — Visualisation des Vols Océaniques
• DAP — download of aircraft parameter
• XTK — Crosstrack
• FIB — Forward Information Base
• EAMG — European ATFM Management Group
• CAN — Committee on Aircraft Noise
• SPIFR — Single Pilot Ifr
• CMS — Common Modular Simulator
• RDQC — Radar Data Quality Control
• ITMD — Individual Training - Material-dependent
• OCU — Onboard Maintenance Terminal Controller Unit
• INR — Image Navigation and Registration
• VSSG — Vertical Separation Sub-Group
• VAR — Variation
• NAPRS — National Airspace Performance Reporting System
• PZ — Portotroz
• NTAP — Notices To Airmen Publication
• FDIOC — Flight Data Input/Output Center

• DLR — German Aerospace Research Establishment
• VREF — Approach Reference speed
• HFS — Human Factors Studies
• SCATCC — Scottish Air Traffic Control Centre
• SMI — Special Message Identifier
• FICO — Flight Inspection Central Office
• DED — Director EATCHIP Development
• TTC — Telemetry and Telecommand Centre
• NDB — Nondirectional Radio Beacon
• CLW — Communications List Window
• TATCA — Terminal ATC Automation
• RECDPS — Recording Data Processing System
• NOCC — National Operation Control Center
• N2 — Second stage turbine speed
• FREER — Free-Route Experimental Encounter Resolution
• HE — Altitude Error
• DG — double-glass
• HWG — Harmonisation Working Group
• IBR — Intermediate Bit Rate
• IFDS — Interfacility Data System
• CRITTER — Civil Rotorcraft IFR Terminal-Area Technology Enhancement Research
• HDLC — High Level Data Link Communication
• NRF — NATS Research Facility
• CMG — Crisis Management Group
• CAPAN — Capacity Analyser
• PCA — Positive Control Airspace
• EPIC — Extended PCM Interface Controller
• HMS — Hydraulic Module Speed
• RNDSG — Route Network Development Sub-Group
• PRL — Pilot Request, Level
• FDG — Flight Data Group
• PAEW — Personnel and Equipment Working
• FNMS — FTS2000 Network Management System
• JATO — Jet Assisted Takeoff
• IAAC — International Agricultural Aviation Centre
• APB — Acquisition Program Baselines
• NOM — NAS Operations Manager
• MUSAC — Multiple Switching and Confirming
• IPG — Indian Pilots Guild
• IASS — International Air Safety Seminar
• RT&BTL — Radar Tracking and Beacon Tracking Level
• ERA — European Regions Airlines Association
• TWS — Terrain Awareness and Warning System
• TWDL — Two-Way DataLink
• REDAC — Research, Engineering and Development Advisory Committee
• GEMS — Generic Error-Modelling System
• ISB — Independent Sideband
• REA — Ready Message
• VPIP — Vertical Intercept Point
• DCPC — Direct Controller-Pilot Communications

• ODETE — On-Line Data Exchange Terminal
• CIR — Cockpit Image Recorders
• RSAT — Runway Safety Action Team
• RRHS — Remote Reading Hydrometer
• LAF — Local Adaptation Functions
• FDO — Flight Data Operations Division
• VISSR — Visible-Infrared Spin Scan Radiometer
• MEDLL — Multipath Delay Lock Loop
• FSIAG — Flight Service Information Area Group
• FIC — Finance Committee
• TC-APD — Tactical Controller Activity Predictor Display
• NSAP — National Service Assurance Plan
• TCAA — Transatlantic Common Aviation Area
• WSC — West Sector Co-ordinator
• OOD — Object Oriented Designer
• HHDW — Handy Heavy d.w.
• CMB — climbing
• STAP — Statistics Panel
• XMET — Cancel METAR
• EGNOS-EM — European Global Navigation Overlay Service
• RAA — Regional Airline Association
• CAS — Cost Accounting System
• OIDS — Operational Information Display System
• MFO — Medical Field Office
• EASG — EASIE ATM Support Group
• TKX — Crosstell Tracker
• RTIS — Road Travel Information Services
• VDR — Very High Frequency Digital Radio
• B — Below
• DEFAMM — Demonstration Facilities for Airport Movement Management
• SOGITS — Senior Official Group in IT Standardisation
• LHCP — Left Hand Circular Polarisation
• HTA — Hermes Training Aircraft
• FRP — Fares and Rates Panel
• ARLNO — Airline Office
• MNTN — Maintain
• SRAP — sensor receiver and processor
• SNACP — Subnetwork Access Protocol
• XCD — Exceptional Conditions
• ATIF — ATN Trials Infrastructure
• VU — Utility Speed
• HELLANET — Hellenic aeronautical Network
• FASC — FAA Aviation Safety Center
• FAATC — FAA Test Centre
• HTI — Human Technology Integration
• CYPRO — Cyprus Project for ATC Improvements
• VC — Vereinigung Cockpit
• NCAB — National Civil Aviation Board
• FO — First Officer
• ERATO — En Route Air Traffic Organiser

• TIS-B — Traffic Information System - Broadcast
• EUR/TFG — European Traffic Forecasting Group
• TSP — HRS Training Sub-Programme
• CA — Conflict Alert
• LWG — Licensing Work Group
• MECU — Millons of ECU
• SME — Subject Major Expert
• ODIN — Briefing System
• GOEST — GOES Terminal Equipment
• IFHO — International Federation of Helicopter Operators
• UAC — Upper Area Control Centre
• NFIS — NAS Facilities Information System
• IGS — International GPS Reference Network
• METI — Meteorological Information
• PROP — Propellor
• CAPE — Computer Assisted Planning Experiment
• IST — InterService Team
• HAD — Human Aspects Development
• EIIC — Electronics Installation and Implementation Centre
• LTT — Landine TeleTypewriter
• SARP — Standards And Recommended Practices
• NSTB — National Satellite Test Bed
• PPOS — Present Position
• T/D — Top of-Descent
• NAPM — National Associate Program Manager
• VM — Heading to a manual termination
• RVM — Radar Video Map
• AS — Airspace Systems
• RLB — Rolling Ball
• NMCE — Network Monitoring and Control Equipment
• IACH — Individual ATC Flight Plan Changes
• QRH — The barometric pressure as reported by a particular station
• FTPC — Flight Technical Professional Committee
• P2R2 — Preferred Route Reduction Program
• TSO — Technical Standards Order
• RTF — Radio Telephony
• EEE — Etudes, Essais and Experimentation
• CRC — Coordinating Research Council (USA)
• SPACDAR — Specialist Panel on Automatic Conflict Detection and Resolution
• FUA — Flexible Use of Airspace
• OIP — Organization Iberoamericana de Pilotos
• LRM — Line Replacement Modules
• TCL — Terminal Control Language
• LIW — Label Input Window
• DEVD — CFMU – Development Division
• RDPP — Radar Data Post Processor
• DAC — Dynamic Air Traffic Control Test
• ELWRT — Electrowriter
• CMAP — Center Mapping Automation Program
• EWAN — EGNOS Wide Area Network

• OFL — Off-Line
• IFDS — Interactive Flight Data System
• RDC — Routing Domain Confederation
• SESY — Service Systems Section
• FSG — Flight Study Group
• NOTAM — Notice for Airman
• GRACYAS — Caribbean/ South American African Regional Planning Group
• RDTE — Research Development Trials and Evaluation
• RRH — Remote Reading Hygrothermometer
• TDSP — Training Documentations and Special Projects
• ERCS — EXM Resistant Communications System
• EXY — Easyjet
• CWSU — Central Weather Service Unit
• TNH — Turn Height
• RNDSG — Route Network and Development Sub-Group
• IAP — Instrument Approach Procedures
• LF — Late Filer
• CCCC — Staff Communications
• II — Interrogator Identity
• RCHG — Repetitive Flight Plan Modification Message
• SW — Shrapnel (Shell)
• RSI — Radiation Status Indicator
• XIN — Military Crossing Intention Notification Message
• LW — landing weight
• HPRES — Pressure Altitude
• TCWP — Threshold Crossing Way-point
• DMC — Detachment of Military Coordinators
• PGP — Planning Grant Program
• TMF — Thrust Management Function
• OPA — Opaque, white type if ice formation
• TRANS — Transition
• FAMIS — Federal Air Marshal Information System
• JAMC — Joint Airspace Management Cell
• SBT — Self-Briefing Terminal
• MSTU — Multiple Stagger Trigger Unit
• IACSP — International Aeronautical Communications Service Providers
• NASE — NAS Adaptation Services Environment
• DNS — Digital Network Signalling
• LCC — Lifetime Cycle Costing
• NLR — National Research Laboratory
• CASST — Commercial Aviation Safety Strategic Team
• TBS — Telephone Back-up System
• SCAT — Supersonic Civil Air Transport
• EADTF — European AIS Database Task Force
• OUR — Operational Users Requirements
• SPLA — Syndicat des Pilotes de Ligna Algeriens
• SF — Special Freighter
• UACC — Upper Airspace Control Centre
• TFTS — Terrestrial Flight Telephone System
• AISPOP — AIS Planning and Operations Subgroup

• ITA — Institute of Air Transport
• NRP — National Route Program
• CPC — Control and Processing Centre
• TASC — The Analytical Science Corporation
• OHP — Over Head Projector
• MTN — Mega Transport Network
• LDGPS — Local DGPS
• LAHSO — Land and Hold Short Operations
• HKAOA — Hong Kong Aircrew Officers Association
• PJSA — Project Scope Agreement
• DRC — Dynamic Route Change
• HCA — Human-Centred Automation
• SCDT — Selected Controlled Departure Times
• STU — Selected Trajectory Update
• C.O. — Certificate of Origin
• CMT — Critical Milestone Test
• HDME — NDB with Distance Measuring Equipment
• VF — Design Flap Speed
• RLA — Relay to
• MMOC — Martin-Marietta Overseas Corporation
• HIRE — T/C Remuneration
• ASP — AIRCOM Service Processor
• IREN — Incident Reporting European Network
• ICET — IATA Capacity Enhancement Team
• CRI — Class Rating Instructor
• NSSR — New Secondary Surveillance Radar Code
• NHCFAE — National Hispanic Coalition of Federal Aviation Employees
• VAA — Value Added Applications
• CFC — Central Flow Control
• SCAP — System Certification and Accreditation Package
• IFPO — IFPS Workstation Operaror
• WXMS — Weather Mapping System
• SMITF — Safety Monitoring and Improvement Task Force
• FRMS — Facility Roster Management System
• PFCS — Primary flight computer system
• CNG — Common Network Group
• PATA — Polish Air Traffic Agency
• AOS — Airport Operations Strategy Drafting Group
• NRCS — National Radio Communications Systems
• MSN — Message Switching Network
• FEODP — Flight Edit and On-Demand Printing
• DAF — Demand Adjustment Factors
• TVOR — Terminal Vor
• VSCS — Voice Switching and Control Systems
• RIS — Relational Interface System
• RCDS — Radio Channel Distribution and Switching
• RSM — Radar Service Message
• PCM — Post Crash Management
• ARN — ATS Routes and Associated Navigation Means
• SFD — Start Frame Delimiter

• RASP — Radar Application Specialist Panel
• ATSCCP — ATS Contingency Command Post
• SERC — Software Engineering Resource Center
• AL — Aircraft Label
• OALT — Operational Acceptable Level of Traffic
• DETF — Data Exchange Trest Facility
• UNCOE — United Nations Committee of Experts
• ODU — Output Distribution Unit
• EWS — Experimental Workstation Simulator
• NAT-TFG — North Atlantic Air Traffic Forecasting Group
• EAWDG — Architecture Workshop Drafting Group
• SICASP — Secondary Surveillance Radar Improvements
• ODT — Onboard Maintenance Terminal Display Unit
• CVO — Code Validity Overlap
• SSDG — Surveillance Strategy Drafting Group
• U — Upward
• CMV — Coverage Measurement Volume
• CTA — Controlled-Time of Arrival
• EAM — Eurocontrol Airspace Model
• CFB — Central Flight plan Bank
• PIRG — Planning and Implementation Regional Groups
• PASYI — Pan-Cyprian Airline Pilots Union
• SCAN — Swiss Data Network
• RITA — Replay Interface for TCAS Alerts
• OLR — Off Load Routes
• OPSNET — Operations Network
• MCTR — Military CTR
• RTSIM — Real-Time Simulation
• OPAC — Operations of Aircraft
• LCF — Local Control Facility
• EHT — Extemely High Tension
• GM — guidance material
• FCOM — FSS Radio Voice Communications
• LVP — Low Visibility Procedures
• NVFR — VFR by night
• PFLINT — Probability of Fault Localisation, internal
• SSS — System Specification
• ESA — Eastern Service Area
• IAM — Informal Application Manual
• ATOVN — AUOTVON
• VAC — Visual Approach Chart
• CE — European Commission
• EPRT — External Processing Response Time
• NOMAS — NOTAM Management System
• FO — Flight Object
• XCOP — Exit Co-ordination Point
• MDFM — Material Delivery Forecast Module
• ODT — Operational Requirements and Data Processing Team
• ISDU — Inertial System Display Unit
• FITAMS — Flight Trials of ATN and Mode S activity

• SATS — Simulator System for Air Traffic Services
• EAC — East Assistant Controller
• OSD — Operational Suitability Demonstration
• CANAC — Computer Assisted National ATC Centre
• SEOAT — Systems Engineering Operational Analysis Team
• SAVES — Strategic Sourcing for the Acquisition of Various Equipment and Supplies
• MSSA — Message Switching System
• TRNSG — Testing of Radio Navaids Study Group
• NATS — National Air Traffic Services (UK)
• GNC — Global NAVCOM
• SCAT-1 — Special Category One
• PETAL — Preliminary Eurocontrol Test of Air/Ground Data Link
• TCB — Training Co-ordination Board
• R/C — Rate of Climb
• ETO — Engineering Technical Officer
• NAR — National Airspace Review 66
• COSCAP — Cooperative Development of Operational Safety and Airworthiness Activities
• EVP — EATM Validation Project
• VPD — Vertical Polar Diagram
• EPG — EASIE Policy Group
• AL — Approach Lights
• CDS — Cabin Distribution System
• ZULU — Equivalent to Greenwich Mean Time
• LFA — Local Flying Area
• SETP — Society of Experimental Test Pilots
• XCM — Crossing Request Cancelation Message
• CRP — Co-ordinated Research Programme
• FEATS — Future European Air System Concept Group
• DANT — Danish NEAN Project Team
• LPC — Logistics Program Coordinator
• AVS — FAA Office of Aviation Safety
• VORTAC — VHF Omni Range Radio/Tactical Air Navagation
• PGMM — Program Management Methodology
• PBCT — Proposed Boundary Crossing Time
• IACSC — Improved Airworthiness Communications Steering Committee
• RIT — RADNET Implementation and Integration Team
• EWBS — EATCHIP Work Breakdown Structure
• GRP — Geographical Reference Points
• WTWS — Windshear and Turbulence Warning System
• WAFS — World Area Forecast System Study Group
• ODRA — Office of Dispute Resolution for Acquisition
• SPS — Sensor Processing Subsystem
• RBSS — Radar Bomb Scoring Squadron
• NAWPF — National Aviation Weather Processing Facility
• ACG — ATN/CNS Consultancy Group
• IPS'S — Intellectual Proprietary Rights
• NAVMN — Navigation Monitor and Control
• EC — Executive Controller
• SUP/MIL — Supervisor military
• EACAC — Evolutionary AIR Ground Cooperative ATM Concept

• CC — Construction coordinator
• TATCA — Terminal Air Traffic Control Automaiton
• NFDC — National Flight Data Center
• ERN — Earth Referenced Navigation
• CZW — Conflict Zoom Window
• NF — Norwegian Air Line Pilots Association
• QAR — Quality Assurance Resources
• V2 — Takeoff Climb Velocity
• RCAG — Remote Communication Air/Ground Facility
• CPL — Commercial Pilot Licence
• RPG — Radar Processing Group
• SCAT — Staffing and Cost Analysis Tool
• FDFM — Flight Data and Flow Management Group
• PAD — Packet Assembler/Disassembler
• NPO — Scientific Production Organisation
• RAAS — Runway Aural Awareness System
• FMDB — Fault Message Database
• SRSG — Safety Regulation Sub-Group
• EES — European Eastern States
• SMAW — Safe Minimum Altitude Warning
• PEL/TRG — Personnel Licensing and Training
• TRA — Thrust Reduction Altitude
• ME — Multi-engine
• NCAIC — National Civil Aviation Information Centre
• RDSS — Radar Determination Satellite System
• EC — Engineering Center
• NSD — Navigational Status Display
• VLE — Landing Gear Extended Placard Airspeed
• OMS — On-board Maintenance System
• EFDFMG — EUROCONTROL Flow Data and Flow Management Group
• SESMA — Special Event Trend Analysis
• RTDS — Radar Terminal Display System
• SOAR — System of Airports Reporting
• FCT — Friction Coefficient
• IPSKY — Internet Technology in the Sky
• RLP — Remote Line Printer
• SMX — Sub-Multiplexer
• TATCI — Tallinn ATC Improvement project
• LATC — Local Air Traffic Control
• LCM — Late Change Message
• NSWC — Naval Surface Warfare Centre
• JTST — Jet Stream
• SMC — Surface Movement Control
• HI-EFAS — High Altitude EFAS
• PES — Proposed Eurocontrol Standard Document
• CMC — Constant Mach Blimb
• DGVII — Directorate General VII
• DCC — Direct Channel Complex
• VOR — VHF OmniRange Navigatgion System
• POLALPA — Stowarzyszenie Polskich Pilotow Komunikacyjnych

• SSE — Servicing Security Element
• RTFM — Regulated Tactical Flight Model
• RPG — Regional Planning Group
• TMCU — Tower Main CWP Unit
• RET — Airborne & Ground Retrofit
• UUP — Updated Use Plan
• VLDM — Very Low Dispersible Material
• VMP — Vertical Measurement Panel
• VREF — Reference Velocity
• RLIM — Radar Data Line Interface Module
• OV — Overseas National Airways
• SAMTF — Safety Assessment Methodology Task Force
• TOPM — Take-Off Performance Monitors
• MLE — Landing Gear Extended Placard Mach Number
• LFPP — Limited Flight Plan Processing
• FPM — Flight Position Monitor
• RSOQ — Radar Stores Occupancy Query
• CUI — Committee on Unlawful Interference
• WIAS — Weather Information Automated System
• NTS — NOTAM Tracking System
• CAP — Study Group on Continuing Airworthiness Problems
• OHTF — Operational Harmonisation Task Force
• NATSPG — North Atlantic Systems Planning Group
• OA — Object Oriented Analysis
• NCIU — NEXRAD Communications Interface Unit
• EIAF — Expanded Inward Access Features
• LEFD — Local Essential Flight Details
• FST — Fuel Storage Tanks
• SMR — Surface Movement Radar Study Group
• T/C — Top-of-Climb
• IAS — Investment Analysis Staff
• SICASP — SSR Improvements and Collision Avoidance Systems Panel
• LTV — Load Threshold Values
• MCC — Multi Crew Coordination
• TAX — Taxiway Lights
• NDP — National Airspace System Defense Programs
• SOL — Sector Outbound List
• RASCAL — Rotorcraft Air Crew Systems Concepts Airborne Laboratory
• BULKHEAD — A vertical partition separating compartments
• VAW — Vertical Assistance Window
• MEARTS — Micro-EARTS
• WPT — Way Point Technologies
• TDB — Track Data Block
• OPD — Operational Procedures Document
• ROSA — REPORT OF SERVICE ACTIVITY
• RS — Reference Station
• SUDP — Surveillance data Processing
• OASIS — Operational and Supportability Implementation System
• ORS — Obstruction Repository System
• OPB — Outer Performance Boundary

• VAR — Variation Magnectic
• NCF — National Control Facility
• FMI — Frequency Management Issues
• RGCSP — Review of General Concept of Separation Panel
• ILM — Inventory Logistics and Maintenance Suite
• OFS — Ordered Field Sequencing
• MNC — Major NATO Command (NATO)
• OPIF — Operator Interface
• SOP — Standard Operating Practice
• NCCA — No Clearance to Civil Aircraft
• HIFA — Human Integration in Future ATM Systems
• SBIR — Small Business Innovative Research
• SHORAN — Short Range Navigation
• VSM — Vertical Separation Minimum
• PTUK — Pilots Trade Union Kazakhstan
• ROSHM — Regional Occupational Safety and Health Manager
• RWSL — Runway Status Lights
• EWPA — EATCHIP Work Programme Adaptation
• SNME — Subnetwork Management Entity
• HDR — Hardware Discrepancy Report
• SGCAS — Study Group on Certification of Automatic Systems
• RSPD — Reported Speed
• RAPNET — Regional Aeronautical Packet
• ITC — in-trail climb
• RIG — Regional Implementation Group
• VWF — Video For Windows
• NSVN — NATO Secure Voice Network
• NXRD — Advanced Weather Radar System
• CALLSGN — Callsign
• CWIR — CFMU Generated What-If Re-routing
• MCS — Maintenance and Control System
• RCLR — Recleared
• OPLT — Operational Acceptable Level of Traffic
• LOSA — Line Orientated Safety Audit
• RAPS — Recovery Access Presentation System
• OC4J — Oracle Containers for Java Enterprise Edition
• JCCA — Joint Committee for Civil Aviation
• HBT — Human Behavioural Technology
• NEMC — Network Enterprise Maintenance Center
• ATS — Automatic Throttle System
• SSGS — Surveillance Sub-Group on Standards
• TDCP — Test Display and Control Panel
• PRICE — Proficiency Requirements in Common English Study Group
• OAP — Oceanic Automation Program
• RLG — Ring Laser Giro
• TFG — Traffic Forecasting Group
• PANS — Procedures for Air Navigation Services
• NAVSEP — Panel Experts on Navigation and Separation
• MAPA — Malaysian Airline Pilots Association
• SPNT — Syndicat Personnel Navigant Technique de Tunisia

• PFA — Pilot Friendly Airport
• FMP — Field Maintenance Party
• SAPS — Staffing and Personnel System
• CCC — Communications Command Center
• RPMES — Regional Program Manager for Environment and Safety
• SAS — Safety Assurance System
• SASO — System Approach for Safety Oversight
• GP — Grain Capacity
• MF — Middle Frequency
• VAW — Volcanic Ash Warnings
• RCAS — Radio Coverage Analysis System
• CSC — Central Service Center
• AR — Administrative Recommendation
• LFS — Low-Fidelity-Simulation
• NCMS — Network Channel Management Station
• IUCM — IFPS Unit Configuration Manager
• PGMP — Pilot Group on ATCO Manpower Planning
• SCC — Satellite Control Centre
• SNBNK — Snowbank Caused by Plowing
• FCT — Federal Contract Tower
• MURATREC — Multi-Radar Track Reconstruction
• PAM — Peripheral Adapter Module
• TDCE — Telephone Distribution and Control Equipment
• RSL — Runway Status Light
• TSRV — Transport Systems Research Facility
• GLS — Global Landing System
• PDTWG — Plot Data Transmission Working Group
• NAVSEP — Navigation and Separation Specialist Panel
• TWYL — Taxiway Lights
• LUGS — Link up Glons-Semmerzake
• MOPS — Minimum Operation Performance Standards
• NTRY — Entry
• IFEO — International Flight Engineers Organisation
• CSTWRK — Cost Work
• MSGSUM — Message Summary
• ITP — in trail procedure
• MCMG — Military Committee Meteorological Group
• EFS — Extended Flight Store
• IFFAS — International Fund for Aviation Safety
• SEOTV — Sindicato Espanol de Oficiales Tecnicos de Vuelo
• CPC — Constant Pitch Climb
• PRU — Performance Review Unit
• SUP/APP — Supervisor Approach
• ESF — Essential Support Facilities
• LROPS — Long Range Operations
• NCIPD — National CIP Documents
• TCT — Technical Control Terminal
• EPI — Element Performance Inspections
• MBT — Maneuvers Based Training
• PPO — Prior Permission Only

• SSD — Synthetic Situation Display
• HUNALPA — Hungarian Air Line Pilots Association
• FLIREC — Flight Recorders
• PAMRI — Peripheral Adapter Module Replacement Item
• SOR — State Of Readiness
• IMP — Implementation Services
• HTD — History Trial Dots
• RICE — RTF Interface Control Equipment
• CPC — Circulo de Pilotos de Chile
• RMCD — Remote Master Control Desk
• SVS — Synthetic vision system
• SSRWG — Systems Safety Risk Working Group
• TKOF — Take-off
• LTF — Licensing Task Force
• MADREC — Maastricht Data Recording
• CUR — Current Sector
• PRODAT — PROSAT Data Link Experiment
• RTD — Research and Technical Development
• CCS — Cabin Communications System
• ONER — Oceanic Navigational Error Report
• PPD — Plans and Policy Division
• CER — Cancel Emergency Mode Request
• SATCO — Signal Automatic Control
• PFM — Pre-Flight Messages
• OFA — Object Free Area
• RJT — Rerouteing Rejection Message
• FS — Foot Switch
• LAM — Activation Message
• TNAV — Time Navigation
• IL — Israлl
• FDS — Flight Data Section
• RTPTS — RouTe PoinTS
• PEC — Pan European Conference
• SPA — Suriname Pilots Association
• SACAA — Southern African Civil Aviation Authority
• GLS — Gearless
• ODL — Oceanic Data Link
• RLST — Revised List
• NARP — National Aviation Research Plan
• SDS — Sub Domain Server
• CPS — Central Print Service
• SISG — Safety Indicators Study Group
• CCQ — Cross Cockpit Qualification
• EL/KYB — EL Keyboard
• TCOP — Transfer Coordination Point
• PRC — Performance Review Commission
• ETA — EstimatedTime of Arrival
• RTG — Radio Telegraphy
• PATRAM — Packaging and Transport of Radioactive Materials
• VMO — Velocity Max Operating

• NACG — National Aeronautical Charting Group
• RTAD — Remote Tower Alphanumeric Display
• GSIF — Ground Station Identification Frames
• CRA — Conflict Resolution Advisory
• SEL — Selected Equipment List
• NEAP — North European Application Project
• ITT — Invitation Property Rights
• SGTOAA — Study Group on Take-off Accountability Areas
• RO-ALPU — Romanian Air Line Pilot's Union
• MIT — Miles-In-Trail
• OTPS — Oceanic Traffic Planning System
• ITD — In-Trail Descent
• TDH — Training Development and Harmonisation
• VSSG — Vertical Separation Study Group
• MCF — Manning Calculation Formula
• SCP — Spacecraft Control Processors
• SVFR — Special VFR
• PDS — Programme Development System
• IWGE — International Working Group on Exercises
• LCD — Liquid Cristal Display
• SWET — Swedish NEAN Project Team
• OSRWG — Oceanic Separation Reduction Working Group
• SPF — Svensk Pilot Forening
• SWISSALPA — Swiss Air Line Pilots Association
• TSIKADA — Russian four-satellite civil navigation system.
• SSGT — Surveillance Sub-Group on Tools
• RMLT — RML Terminal
• GIC — Geostationary Integrity Channel
• OSDS — Oceanic System Development and Support
• FOW — free on wharf
• WPS — Working Positions
• LFME — Local Flow Management Enhancements
• FR — First Refusal
• TALPA — Turk Hava Yallair Pilotlari Dernegi
• POH — Pilot Operating Handbook
• IG — Meridiana
• ODAPS — Operational OGE Data Acquisition and Patch Subsystem
• TARA — Terminal Area R-NAV Applications Sub-Group
• RLNA — Requested Level Not Available
• SEP — Safety Equipment and Procedures
• WAA — Wide Area Augmentation
• PMC — Project Materials Cumulative
• NOG — National Operations Group
• SBS — Surveillance Broadcast Services
• WEAA — Western European Airports Association
• SNACF — Subnetwork Access Function
• MACE — Multi-criteria analysis for Concept Evaluation
• SUATMS — Single Unified ATM System
• CYGLGN — Cyclogenesis
• SIPACIP — Sindicato de Pilotos Aviadores Civiles del Paraguay

• MIDAS — Multi-Discipline Data Analysis System
• THAIPA — Thai Pilots Association
• VP — Vertical Profile
• NBCFAE — National Black Coalition of Federal Aviation Employees
• GOESF — GOES Feed Point
• OPR — Air Traffic Management Operational Requirements
• PROFI — Multinational Project Financing
• ITR — International Transit Route
• NDC — National Data Center
• FIT — Flight Plan Input Terminal
• HD — Air Holland
• NONSTD — Nonstandard
• TITLE — Message Name
• EGNOS — European Global Navigation Overlay Service
• PFD — Planned Flight Data
• TAI — Thermal Anti-lce
• MMIL — Martin-Marietta International Link
• XCOR — Cancel Correlation
• EXSPEC — Exercise Specification
• PBRF — Pilot Briefing
• MPAR — Multifunction Phased Array Radar
• RPOC — Risk Point-of-Contact
• LOC — Localizer Beam
• NAAN — North Atlantic ADS-B Network
• SET — Spacing Efficiency Tool
• RRWSS — RWDS Sensor Site
• DRF — Departure Flow Regulation
• MTP — Medium-Term Plan
• FSA — First System Activation
• RINAL — Portuguese Data Network
• SEL — Single Event Level
• ISO — Information System Owner
• PDB — Performance Data Base
• FIA — Icelandic Air Line Pilots Association
• SLOVALPA — Slovak Air Line Pilots Association
• PCB — Personnel Compensation and Benefits
• CO — Continetnal
• SMHI — Swedish government owned MET Institute
• CNS — Communications Navigations and Surveillance
• TPA — Tanzania Pilots Association
• NSP — National Simulator Program
• NSD — Navigation System Database
• SRC — Safety Regulation Commission
• MNS — Mobile Network Service
• OFFPDR — Off Predetermined Route
• RIC — Radar Integration Control
• MILSPEC — Military Specifications
• OLDISP — OLDI Specialist Panel
• RMLR — RML Repeater
• RNAV — Workstations, Intelligent tools, and Networks

• SIAP — Standard Instrument Flight Procedure
• PID — Pilot Information Downlink
• MSUP — Military SUPervisor
• ITM — Intermediate Approach controller
• QRPS — Route Points Store
• RTB — Radar Tool Box
• NSRCATN — National Strategy to Reduce Congestion on America's Transportation Network
• QSIG — Signalling to a Q Reference Network
• RSMTF — Radar Separation Minimum Task Force
• RTCA — Radio Technical Committee on Aeronautics
• MNWG — Multinational Working Group
• PED — Primary Engine Display
• TCA — Terminal Conflict Alert
• LAS — Lower Airspace Sector
• SFLA — Assign SFL
• LDM — Low dispersible material
• PEM — Phone Emergency Module
• RCF — Remote Communications Facility
• SRM — Slot Revision Message
• FPS — Flight Plan Server
• PHIBUF — Performance Buffet Limit
• IRMA — Intermediate Redesigned MCC Architecture
• NASDC — National Aviation Safety Data
• PGS — Personnel General Services Team
• TTA — Tactical Training Area
• PAK — Pilot Acknowledgement
• MAD — Model of Activity for Design
• SFT — Simplified Fast Time Simulations
• PERDIEM — By the Day
• PEA — Parameter and Environment Assembler
• MTPA — Mobile Transponder Performance Analyser
• OMG — Operational Monitoring Group
• PSL — Projected Service Life
• PTC — Presumed-to-Conform
• RRWDS — Remote Radar Weather Display
• SELREL — Selective Release
• MST — Multiple Sensor Tracking
• OAS — Oceanic Automation System
• SRS — Shuttle Reservation System
• EIS — Environmental Information Sampling
• STT — Studies, Tests and Trials
• OSI — Open Sytem Interconnection
• RESTR — Restriction
• TARAD — Tracking Asynchronous Radar Data
• GP — Glidepath
• NFD — National Flight Database
• PIM — Programme Implementation Management
• MANIFEST — Inventory of cargo on board
• RTD — Research and Development of Technologies
• ROA — Record of Assistance

• RC — Radar Controller
• CDN — Coordination
• RTI — D-RVR Delivery Messge
• TTF — Total Flights
• NSC — National Service Center
• O21 — Ocean21
• SCVTS — Switched Compressed Video Telecommunications Service
• TSD — Time Sequence Diagram
• RSURTF — RASS-S Upper Requirements TF
• SFD — Service Flow Diagram
• RLBCS — Rolling Ball CallSign
• NDA — Next Data Authority
• GMT — Greenwich Meantime
• SPD — Speed Mode
• SCT — Southern California Area TRACON
• MMC — Maintenance Monitoring Console
• RAN — Regional Air Navigation
• LX — Crossair
• SSO — STAR Support Office
• STEPCLB — StepClimb
• NOC — Notice Of Completion
• UPA — Uganda Pilots Association
• MIR — Master Inspection Record
• TTP — TCAS II Transition Program
• REL — Runway Entrance Light
• CASA — Controller Automated Spacing Aid
• OPC — The control indicated is operational control
• MOCBITE — Maastricht Operational Computer Based
• PEX — PHIGS Extended X-Windows System
• MTMA — Major TMA
• PRR — Pilot Request, Route
• CRM — Collision Risk Methodology
• SALPA — Sudan Air Line Pilots Association
• MDL — Multipurpose Data Link
• RTT — D-RVR Termination Message
• PROMET — Provision of Meteorological Information
• ISS — Information Systems Security
• RISE — Retrieval and Interchange of Standards in Europe
• SHANDAP — Shannon Data Processing
• STUD — Innovative studies
• CAPS — Computer Automated Profiling Systems
• RDM — Running Display Message
• TB — Tellback
• NATCON — North Atlantic Concept
• SMF — Systems Management Facility
• EI — Air Lingus
• SMT — Schedule Management Toolset
• OTT — D_OTIS Termination Message
• OFST — Lateral Offset Active Light
• RBI — Relative Bearing Selector

• PFE — Path Following Error
• MIP — Multinational Information Production
• PMC — Project Management Cell
• PROSAT — Program Satellite
• MRM — Maintenance Returned Monitoring
• IC — Implementation Center
• OLDINA — OLNO, Diekirch, Nattenheim
• RSUS — RPL Suspension Message
• SSD — System Support Directive
• OPD — Optimum Profile Descent
• PCC — Planning Co-ordination Controller
• PA — Project Authorization
• TNA — Turn Altitude
• MSS — Message Storage System
• SEL — Selected Environmental Library
• RTF — Radiotelephony
• OPS/AIR — Operations/Airworthiness
• RJ — Roal Jordanian
• PRC — EEC business area - support to performance review
• STS — Support to States
• OETS — Obstacle Evaluation Tracking System
• SCA — Serbian Cockpit Association
• VS — Vocational Stabilisation
• REG — Regulatory
• PRIF — PROC Interface Tool
• MSF — Master Simulation Facility
• OE — Obstacle Evaluation
• NPA — Notice of Proposed Amendments
• NDE — Node Processor
• SST — System Shakedown Testing
• PASS — Professional Airway System Specialists
• FMC — Frontline Managers Courses
• PIC — Principal Interexchange Carrier
• NOG-FSG — NOG Features Subgroup
• TAT — Total AirTemperature
• MBA — Microburst Alert
• FS — Flight Standards
• SEL — Selcal code
• RSA — Radar Service Area
• IND — IFALPA Industrial Committee
• TDI — Track Deviation Instrument
• RESYNCING — Resynchronizing
• OFIR — Oceanic FIR
• RCLT — RCL Terminal
• PED — Personal Electronic Devices
• SES — Supplementary Equipment and Services
• SGAMI — Select Group for Assessing Manpower Issues
• STAR — StandardTerminal Arrival Route
• SAPA — Swazi Air Line Pilots Association
• RCF — Radio Communications Failure

• RBS — Radio Backup System
• NPL — Night Plan
• SOC — Start of Climb
• SA — Situation Awareness
• RT — Remote Transmitter
• NFAX — National Facsimile Service
• SSM — System Support Modification
• PIM — Program Implementation Manager
• RAC — RUHR Assistant Controller
• EA — Europe Airsports
• RSO — Route per State Overflown
• SIPAC — Sindicato Panameno de Aviadores Comerciales
• PTS — Procedures Tracking System
• TGS — Taxi Guidance System
• PPR — Personal Property Report
• PLC — Planning Controller
• EPS — Exercise Preparation Suite
• SSA — System Safety Approach
• RSC — Runway Service Conditions
• PDS — Proficiency Development Specialists
• SCC — System Command Center
• MIA — Minimum IFR Altitudes
• MLA — ManeuverLimited Altitude
• RI — Route Intercept
• MACEN — Mando Centra
• PED — Passenger Electronic Devices
• NSM — Network System Manager
• MAM — Maintenance Assumed Monitoring
• PEC — Pressure Error Correction
• NIPT — National Infrastructure Planning Team
• NAP — Needs Assessment Program
• VD — Vertical Dispersal
• PAS — Project Assignment Sheet
• SEC — IFALPA Security Committee
• SC — Steering Committee
• OAT — Outside AirTemperature
• LF — Later Filter
• SEM — Semmerzake
• SP — Surveillance Processing
• OST — Office of the Secretary of Transportation
• SRP — Selected Reference Point
• MSD — Multi-Site Damage
• MCL — Middle Compass Locater
• TRL — Transition Level
• MOS — Military Operations Specialst
• RSS — Remote Speaking System
• US — USAir
• POP — Point-0f-Presence
• SEC — Strategic Event Coordination

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