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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
• LAN — Local Area Network
• OPS — Operations
• XMIT — Transmit
• N/A — Not Applicable
• ACAS — Aircraft Collision Avoidance System
• LTHH — Liner Terms Hook/Hook (shipping)
• NOTAMR — Notam Replacing another Notam
• ADVON — Advanced Echelon
• A-VDGS — Advanced-Visual Docking Guidance System
• AVSEC — Aviation Security
• RAIL — Runway Alignment Indicator Lights
• BTWN — Between
• ETA — Estimated Time of Arrival
• ANSI — American National Standards Institute, Inc.
• D.O.T — Department of Transport
• OEM — Original Equipment Manufacturer (usually in reference to car parts)
• OPR — Office of Primary Responsibility
• DDM — Difference in Depth of Modulation
• IT — Information Technology
• FTP — File Transfer Protocol
• ROM — Read-Only Memory
• CPU — Central Processing Unit
• ABT — About
• DLOSP — Dropping Last Outwards Sea Pilot
• MSG — Message
• EPA — Environmental Protection Agency (US)
• IP — Internet Protocol
• MOLCHOPT — More or Less Charterers Option
• LASER — Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
• XBAR — Crossbar
• CRT — Cathode Ray Tube (type of TV)
• T-VASIS T — Visual Approach Slope Indicator System
• DCE — Data Circuit-terminating Equipment
• FLSA — Fair Labor Standards Act
• FAQ — Frequently Asked Questions (sometimes Pronounced Fak)
• FIFO — First In, First Out
• PDF — Portable Document Format (created by Adobe Acrobat)
• MOU — Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
• A — Ampere
• R&D — Research & Development
• GUI — Graphical User Interface (goo-ey)
• IROI — Instantaneous Return on Investment
• QC — Quality Control
• MTBF — Mean Time Before Failure
• FTE — Full Time Equivalent
• IQ — Intelligence Quotient
• TBA — To Be Advised

• RF — Radio Frequency
• MIN/MAX — Minimum/Maximum
• ICD — Interface Control Document
• MAN — Metropolitan Area Network
• EDI — Electronic Data Interchange
• DEC — Digital Equipment Corporation
• ARINC 604 — Guidance For Design And Use Of built-In Test Equipment
• JP — Japan
• TBD — To Be Determined
• BSS 1/1 — Basis 1 Port to 1 Port
• EU — European Union (1994; formerly referred to as the EEC or EC)
• PPE — Personal Protective Equipment
• LRU — Line Replaceable Unit
• R B — Range and Bearing line
• ACCUM — Accumulate
• NPV — Net Present Value {economics}
• ANOVA — Analysis of Variance (statistics)
• B-RNAV — Basic Area Navigation
• C102 (TSO) — Helicopter Radar Approach, Issued 04/02/84
• GPS — Global Positioning System (ex-NAVSTAR)
• GIS — Geographic Information System
• IRL — Republic Of Ireland
• C/N0 — Carrier-to-Noise-Density Ratio
• DFAX — Digital Facsimile
• A SMGCS — Advanced Surface Movement Guidance and Control Systems
• ACK — Acknowledge (telecommunications; Cf. NAK)
• A-VASIS — Advanced Visual Approach Slope Indicator System
• DWAT — Deadweight
• WWW — World Wide Web
• DOD — United States Department of Defense
• OJT — On the Job Training
• DODAR — Diagnosis, Options, Decision, Assessment and Revision
• FDEDANRSAOCLONL — Freight Deemed Earned, Discountless And Non-Returnable Ship And Or Cargo Lost Or Not Lost
• MOA — Memorandum Of Agreement
• BA FAIR — Braking action Fair
• O&M — Operation and Maintenance
• FYI — For Your Information
• ADP — Automated Data Processing
• FY — Fiscal Year
• WAN — Wide Area Network
• WX — Weather
• EEO — Equal Employment Opportunity
• X-BAND — The frequency range between 8000 and 12500 MHz
• NOTAMC — Notam Cancelling another Notam
• PDA — Personal Digital Assistant
• IBM — International Business Machines Corporation
• SMTP — Simple Mail Transfer Protocol
• I AND Q CHANNELS — In-phase and Quadrature channels
• DRAM — Dynamic Random Access Memory (dee-ram) (computing)
• ARPA — Advanced Research Projects Agency (made early internet)

• BA NIL — Braking Action Nil
• SOW — Statement Of Work
• LOI — Letter Of Intent
• ARINC 422 — Guidance For Modification Status Indicators & Avionics Service Bulletins
• A/D CONVERTER — Analogue-to Digital Converter
• Q.23 — Signalling system for PABX
• CTRL — Control
• IRR — Internal Rate of Return
• KG — Kilogram
• Q PROCEDURE — Procedure to identify replacement flight plans
• JAA AMC — JAA Acceptable Means of Compliance
• DOT — Department of Transport
• W/STEP — With Step Change in Altitude
• AGL — Above Ground Level
• CAA SI — Civil Aviation Authority of Solomon Islands
• ESA — European Space Agency
• POS REF — Position Reference
• COD — Cash On Delivery
• LED — law enforcement desk; light emitting diode
• HALS / DTOP — High Approach Landing System / Displaced Threshold Operations
• WAYPOINT — Position in space usually on aircraft's flight plan
• BA POOR — Braking Action Poor
• X-WIND — Cross Wind
• VAT — Value Added Tax
• D-GPS — Differential Global Positioning System
• R-CHANNEL — Random Access Channel
• CV — Curriculum Vitae
• DZ — Algeria
• KAEPA — Kuwait Aircraft Engineers and Pilots Association
• W/MOD — With Modification of Vertical Profile
• CIP — Carriage and Insurance Paid to
• CFR — Code of Federal Regulations
• ERDF — European Regional Development Fund
• HZ — cycles per second (hertz)
• SQL — Structured Query Language
• P,R,D AREA — Prohibited, Restricted, or Danger Area
• DSS — Decision Support System
• XGEO — Cancel GEO
• S-SUP — Sector Supervisor
• DOS — Disk Operating System
• ISDN — Integrated Services Digital Network
• B/CRS — Back Course
• PACOTS — Pacific Organised Track System
• PCB — printed circuit board
• XLTR — Translater
• D-ATSU — A Downstream Air Traffic Services Unit
• DE — Germany
• EMARSSH — Europe, Middle East, Asia Route Structure of the Himalayas
• EXTRAP — Extrapolate
• CIO — Chief Information Officer

• M:M — Many-to-Many Relationship
• R,E&D — Research, Engineering and Development
• XECM — Cancel Executive Controller Message
• DA/H — decision altitude/height
• ALT — Alternate
• D-OTIS — Data Link Operational Terminal Information Service
• CTR — Center
• CAA NZ — Civil Aviation Authority of New Zealand
• ATA — Area Transportation Authority
• VHF — Very High Frequency
• 2H — Second Half
• CBT — Computer Based Training
• CAA PNG — Civil Aviation Authority of Papua New Guinea
• HIRL — High Intensity Runway Lights
• ATC — Air traffic control
• FAASTEAM — FAA Safety Team
• T-ATSU — Transferring ATS Unit
• CM — Centimeter
• OMB — Office of Management and Budget (U.S.)
• OBTEX — Offboard Targeting Experiments
• F&CM — Flow And Capacity Management
• MHZ — Megahertz (Megacycles Per Second)
• LSD — Lashed Secured Dunnaged
• FANOMOS — Flight track and Aircraft NOise Monitoring System
• ITU — International Telecommunication Union
• R-ATSU — The Receiving Air Traffic Services Unit
• JAAC/JAA CE — JAA Committee
• AOG — Aircraft On Ground
• QOS — Quality of Service
• SOP — Standard Operational Procedure
• MLS — Microwave Landing System
• CONUS — Continental United States (48 Contiguous States and DC)
• XCOORD — Cancel Co-ordination
• D-TO NL — Derated Takeoff Engine Fan Speed
• ERP — Emergency Response Plan
• CAP — Civil Air Patrol
• LTIOV — Latest Time Information of Value
• T-CHANNEL — Time Division Multiple-Access Channel
• IFPRU — IFPS Responsible Unit
• FAR — Federal Acquisition Regulation
• M-ADS — Modified Automatic Dependent Surveillance
• EXW — Ex Works
• XASM — Cancel Assume
• BAHAMAS ALPA — Bahamas Airline Pilots Association
• SMEQ — Subjective Mental Effort Questionnaire
• V/TRK — Vertical Track
• M/ASI — Mach/Airspeed Indicator
• FAA — Federal Aviation Administration
• QTY — Quantity
• GNP — gross national product (economics)

• EAMG SSG — EAMG Systems Sub-Group
• O-QAR — Optical Quick Access Recorder
• FAS — Free Alongside Ship
• DAARWIN — Distributed ATM Architecture based on
• ARINC 424 — Navigation System Data Base
• LNG — Liquefied Natural Gas
• RAARR — Radar Arrival
• UHF — Ultra High Frequency (300-3000 MHz; 1m-10cm)
• MIPS — Millions of Instructions Per Second
• I(FD) — MTI Improvement Factor
• IA/CC — Indirect Access/Common Control
• IMF — International Monetary Fund
• MSL — Mean Sea Level
• NAAPE — National Association of Aircraft Pilots and Engineers
• MTTR — Mean Time To Repair
• EAD SGR — EAD Sub-Group
• BPS — bits per second
• DAMFORDET — Damages for Detention
• XCONF — Delete CONFlict
• XOFF/PDR — Cancel Off Predetermined Route
• VAFORIT — VAFOR Implementation
• SAAFEA — South African Airways Flight Engineers Association
• RNG — Range
• XMITR — Transmitter
• EEG — Electro-EncephaloGram
• SAN — Storage Area Network
• ATA — Actual Time of Arrival
• HADAMARD — Multi-radar processing written in ADA
• LABSW — LABS Switch System
• SAR — Search And Rescue
• GALPA — Ghanaian Air Line Pilots Association
• NATO — North Atlantic Treaty Organisation
• PRI — Primary Rate Interface (ISDN)
• C/S/S/N — Capacity/Safety/Security/Noise
• LVL — Level
• AHRS — Attitude Heading Reference System
• P.T.T — Push-to-Talk
• XFRQ — Cancel FreQuency message
• BAREBOAT CHTR. — Bareboat Charter
• KARLDAP — Karlsruhe Automatic Data Processing and Display System
• P.ACCS — Pairs of ACCs
• PALLAS — Phased Automation of the Hellenic ATC System
• HQ — Headquarters (HDQ Preferred)
• LABSC — LABS GS-200 Computer
• ADC — Air Data Computer
• PAQ — Position Analysis Questionnaire
• ICAO — International Civil Aviation Organization
• LABSR — LABS Remote Equipment
• FOIA — Freedom of Information Act
• I/AFSS — International AFSS

• CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
• IA-5 — International Alphabet Number 5
• I/O — Input/Output
• HALPA — Hellenic Air Line Pilots Association
• C87A — Low Range Radar Altimeters, Issued 01/01
• FAACIS — FAA Communications Information System
• FCC — Federal Communications Commission (US)
• GMT — Greenwich Mean Time (Zulu)
• EGATS — Eurocontrol Guild of Air Traffic Services
• VBF(LO) — Flaps up minimum buffet speed at current maneuver load factor minus altitude dependent variable
• PM — Preventive Maintenance
• JAAB/JAA-B — Joint Boards
• XNSSR — Exit NSSR
• B/L — Bill of Lading
• XBRIGHT — Cancel highlighting
• HBARO — Barometric Altitude
• MAX — Maximum
• VBFNG(HI) — High speed CAS at N g's to buffet onset
• LOV — List Of Values
• ARINC 610 — Guidance For Design and Integration of Aircraft Avionics Equipment In Simulators, Supplement 1
• P… — Prohibited Area
• EANPG — Regional European Air Navigation Planning Group
• MIN — Minimum
• PALPU — Pancyprian Airline Pilots Union
• XIFL — Cancel Intermediate Flight Level
• KBS — Knowledge-Based System
• AAGDI — Automated Air Ground Data Interchange
• HAWOP — Helicopter All-Weather Operations Study Group
• K — Kilo-
• XFDM — Cancel FDM
• NTSB — US National Transportation Safety Board
• AAF-1 — Director of Airway Facilities
• VBFNG(LO) — Low speed CAS at N g's to buffet onset
• JAARC — JAA Research Committee
• C91A — Emergency Locator Transmitter, Issued 04/85
• NOAA — National Oceanic and Atmospheric Administration (US)
• GSA — U.S. General Services Administration
• AT&T — American Telephone and Telegraph (U.S. company, also known as "Ma Bell")
• CFE — Customer-Furnished Equipment
• APU — Auxiliary Power Unit
• PVC — Permanent Virtual Circuit (ATM)
• XHOLD — Cancel Hold
• LOA — Letter Of Agreement
• TTG — Time-To-Go
• AFDK — After Dark
• JALPA — Jamaica Air Line Pilots Association
• DARP(S) — Dynamic Airborne Route Planning (System)
• TCP — Transmission Control Protocol
• XEXPLT — Cancel Extrapolation
• AF — Air Force

• UN — United Narions
• DDU — Delivery Duty Unpaid
• CEP — Circular Error Probable
• NBFR — Not Before
• WT — Weight
• EIS — Environmental Impact Statement (US)
• LOB — Line Of Business
• EAPTU — Air Line Pilots Trade Union
• CUG — Closed User Group
• QMS — Quality Management System
• KE — Kenya
• AVG — Average Voltage Gain
• KW — Kilowatt (one thousand watts) (measurement)
• LF — Low Frequency
• DML — Data Manipulation Language
• PSTN — Public Switched Telephone Network
• DBMS — Data Base Management System
• INFO — Information
• BRI — Basic Rate Interface
• IATA — International Air Transport Association
• IAEA — International Atomic Energy Agency
• HAZMAT — Hazardous Material
• FACUTL — Facility Utilization System
• W — Watt
• BVR — Beyond Visual Range
• PALS — Precision Approach Lighting System
• CASE — computer-automated software engineering
• DABRK — Daybreak
• CDC — Computer Display Channel
• OPM — Office of Personnel Management
• IANSSC — IANS Steering Committee
• KHZ — kilohertz (1000 cycles per second)
• RISC — Reduced Instruction Set Computer
• AFCS — Automatic Flight Control System
• AAL — Above Aerodrome Level
• FOB — Free On Board
• IR — Islamic Republic of Iran
• ACFT — Aircraft
• DATALINK — Digitized Information Transfer (air/ground)
• DDE — Dynamic Data Exchange (in software parlance)
• COTS — Commercial Off the Shelf Software
• CHOPT — Charterers Option
• COOP — Continuity of Operations
• UA — Ukraine
• EADCOS — EAD Co-ordination Group
• ATDNSHINC — Any Time Day/Night Sundays and Holidays Included
• NADSW — NADIN Switches
• ALT — Altitude
• IDP — Individual Development Plan
• AOR — Area of Responsibility. The assigned area to any given unit.

• Q&A — Question & Answer
• BW — Bandwidth
• DMA — direct memory access (computer term)
• ASM — Available Seat Mile
• ATHWARTSHIPS — At right angles to the centreline of the ship
• EBCDIC — Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
• ELBA — Emergency Location Beacon-Aircraft
• APR — April River Airport, April River, Papua New Guinea
• BCR — Benefit/Cost Ratio
• ETD — Estimated Time of Departure
• IWL — Institute Warranty Limits
• CAF — Currency Adjustment Factor
• SAE — Society of Automotive Engineers
• CM — Configuration Management
• ACPT — Accept
• HDLTSBENDS — Half Despatch Lay Time Saved Both Ends
• CISO — Chief Information Security Officer
• FDP/RDP — Flight Data Processing/Radar Data Processing
• BAF — Belgian Air Force
• CIF — Cost, Insurance, Freight
• ATCRBS — Air Traffic Control Radar Beacon System
• CW — Continuous Wave
• LAT — Latitude
• CZ — Czech Republic
• CFR — Cost and Freight
• MIL — Military
• NEG — NEGative
• PRE-OJT — Pre-On-the-Job Training
• GPO — Government Printing Office
• COS — Chief of Staff
• EU-OPS — EASA Operations Regulations
• EG — Egypt
• GE — Georgia
• TV — Television
• CAA — Civil Aviation Authority
• NM — Nautical Mile
• DK — Deck
• AED — Automated external defibrillator
• MBO — Management by Objective
• PBX — Private Branch eXchange (company phone system)
• OSI — Open Systems Interconnection (iso Standard)
• IM — Information Management
• RMS — root mean square (preferred over "RMS")
• CQD — Customary Quick Despatch
• GEN — General Motors
• CAT — Category (e.g. CAT-5 cable)
• COGSA — U.S. Carriage of Goods by Sea Act
• TTL — Transistor-Transistor Logic
• MAINT — Maintenance
• AGW — All Going Well

• ETS — Estimated Time of Sailing
• EPROM — Erasable Programmable Read-Only Memory
• FLT — Full Liner Terms
• CPT — Carriage Paid To
• RCR — Runway Condition Reading
• MTTF — Mean Time To Failure
• AMSL — Above Mean Sea Level
• L/C — Letter of Credit
• CG — Center of Gravity (DXS)
• LADGPS — Local Area Differential Global Positioning System
• LOI — Letter of Indemnity
• DME — Distance Measuring Equipment
• KM — Kilometer (1,000 meters)
• AE — Application Entity
• DES — Delivered Ex Ship
• COTR — Contracting Officer Technical Representative
• EMP — Electromagnetic Pulse
• AC — Air Canada
• BOD — Beneficial Occupancy Date
• LDAP — Lightweight Directory Access Protocol (pronounced Ell-dap)
• AFB — Air Force Base (USAF)
• IFB — Invitation For Bid
• N — North
• USAF — United States Air Force
• FDD — Freight Demurrage Deadfreight
• DR — Disaster Recovery
• LEO — Low Earth Orbit (satellite communications)
• SNGL — Single
• PCM — Pulse-Code Modulation
• EXPLT — Extrapolate
• MODEM — Modulator-Demodulator
• C — Centigrade
• ARINC 753 — HF Data Link System
• IS — Iceland
• TSTMS — Thunderstorms
• EFTA — European Free Trade Association (Geneva)
• RSPL — Recommended Spare Parts List
• MBPS — Megabits per second
• COA — Contract Of Affreightment
• CNEE — Consignee
• NRL — Naval Research Laboratory
• 1 PPS — One Pulse Per Second
• ACMS — Aircraft Condition Monitoring System
• CAVU — Ceiling And Visibility Unlimited
• S — South
• UPU — Universal Postal Union
• OUTB — Outbound
• POS INIT — Position Initialization
• VCRI — Verification Cross Reference Index
• CU — Control Unit

• SVC — Service
• DDP — Delivered Duty Paid
• ASR — Airport Surveillance Radar
• ETC — Estimated Time of Completion
• MMU — Memory Management Unit
• MTBCF — Mean Time Between Critical Failures
• SCADA — Supervisory Control And Data Aquisition
• MK — Republic of Macedonia
• SALS — Short Approach Lighting System
• CPD — Continuous Professional Development
• SMS — Safety Management Systems
• EGA — Enhanced Graphics Adapter
• HUMS — Health and usage monitoring systems
• BY — Belarus
• AO — Authorizing Official
• IR — Iran Air
• HF — High Frequency
• EXTRM — Extreme
• ITIL — Information Technology Infrastructure Library
• ACD — Automatic Call Distributor
• NOR — Notice of Readiness
• TEMP — Temperature
• DOS — United States Department of State
• EST — Estimated Starting Time
• TC/OC — Technical Control and Operational Control
• ELINT — Electronic Intelligence Satellite
• DEBRIEF — Debriefing
• CLR — Clear
• D-ATIS — Digital - Automatic Terminal Information Service
• MIT — Massachusetts Institute of Technology (U.S.)
• CAT — Computer Aided Testing
• 16PF — Sixteen Personality Factor Questionnaire
• DHDATSBE — Despatch Half Demurrage on All Time Saved Both Ends
• ENG — Engine
• HU — Hungary
• PDN — Public Data Network
• ALSTG — Altimeter Setting
• PDPR — Per Day Pro Rata
• SNR — Signal-to-Noise Ratio
• EPR — Engine Pressure Ratio
• LEC — Local Exchange Carrier
• P&I — Protection and Indemnity insurance
• FAC — Facilities
• GHZ — Gigahertz
• PER SE — By Itself
• PCT — Percent
• DPI — Dots per inch.
• LOCID — Location Identifier
• A/D — Analog-to-Digital
• BAF — Bunker Adjustment Factor

• RFQ — Request For Quote
• CMO — Certificate Management Office
• RVR — Runway Visual Range
• ALSF-2 — High Intensity Approach Lighting Systerm with Sequenced Flashing Lights.
• FIM — Fault Isolation Manual
• AFA — Association of Flight Attendants
• FAA — Federal Aviation Authority
• ARINC 743 — Airborne Global Positioning System Receiver
• DRP — Disaster Recovery Plan
• NESDIS — National Environmental Satellite, Data, and Information Service
• POS — Position
• ADDENDUM — Additional chartering terms at the end of a charter party
• TX / RX — Transmitter / Receiver
• FT — Feet
• SWIM — System Wide Information Management
• WG — Working Group
• ADCCP — Advanced Data Communications Control Procedures
• AIXM — Aeronautical Information Exchange Model
• IDS — Intrusion Detection System
• BELOW — Beneath the deck
• CPIC — Capital Planning and Investment Control
• L — Left
• MSA — Minimum Safe Altitude
• CGL — Circling Guidance Light
• APS — Arrival Pilot Station
• TOR — terms of reference (ICAO/FAA)
• DIST — Distance
• REQ — Request
• MAN — Manual
• APAPI — Abbreviated Precision Approach Path Indicator
• PRN CODE — Pseudo Random Noise Code
• AA — Always Afloat
• 2D — Two-Dimensional
• ARINC 542 — Airborne Oscillograph Flight Data Recorder
• ADSY — Administrative Equipment Systems
• CONOPS — Concept of Operations
• DVOF — Digital Vertical Obstruction File
• DEQ — Delivered Ex Quay (shipping)
• OO — SkyWest Airlines
• MCE — Management Centre Europe
• CKD — Completely Knocked Down
• EXER — Exercise
• DEC — December
• HDLC — High-Level Data Link Control
• CDB — Corporate Database
• XFR — Transfer
• WO — Without
• IF — Intermediate Frequency
• IFTO — International Federation of Tour Operators
• DHS — Department of Human Services

• CDU — Control Display Unit
• PKI — Public Key Infrastructure (cryptography)
• WAC — World Aeronautical Chart
• HWCI — Hardware Configuration Item
• RESA — Runway End Safety Area
• CRS — Course
• EMS — Environmental Management Systems
• CN — Change Notice
• CRF — Central Repair Facility
• RLLS — Runway Lead-In Light System
• PRF — Pulse Repetition Frequency
• IPT — Integrated Product Team
• FD — Free Discharge
• NASA — National Aeronautics and Space Administration (US)
• BM — Beam
• DOLSP — Dropping Off Last Sea Pilot
• E — East
• IFF — Identification Friend or Foe (radar)
• A/C — Aircraft
• RCM — Requirements Correlation Matrix
• ARINC 419 — Digital Data System Compendium
• AOCS — Attitude and Orbit Control System
• CCSD — command communications service designator; control communications service designator
• EIB — European Investment Bank
• FD — Flight Director
• FAR — Federal Aviation Regulation
• FEC — Forward Error Correction
• TTY — Teletype Telex Machine
• GSE — Ground Support Equipment
• EHF — Extremely High Frequency
• AEW — Airborne Early Warning
• BL — Bale
• CY — Cyprus Airways Ltd
• AAAA — Always Accessible Always Afloat
• KBPS — kilobits per second
• NOTAMN — New Notam
• BDI — Both Dates Inclusive
• LIDAR — Lander Light Detection and Ranging
• ARINC 561 — Air Transport Inertial Navigation System - INS
• RTE — Route
• LOA — Length Overall
• NEPA — National Energy Policy Act of 1992
• NPRM — Notice Of Proposed Rule Making
• PQP — Project Quality Plan
• ETE — Estimated Time En Route
• ANG — Air National Guard
• DTED — Digital Terrain Elevation Data (dee-ted)
• MRC — Monthly Recurring Charge
• A&E — Architecture and Engineering
• ADS-C — Automatic Dependent Surveillance-Contract

• LUX — Findel International Airport, Luxembourg-Findel, Luxembourg
• FOD — Foreign Object Damage
• LIDO — Lufthansa Integrated Dispatch Operation
• DDD — Detailed Design Document
• CW — Carrier Wave
• AFSPS — Arrival First Sea Pilot Station
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• OPI — Office of Primary Interest
• QUIS — Questionnaire for User Interface Satisfaction
• DEA — Drug Enforcement Agency
• STTR — Small Business Technology Transfer
• HUM RES — Human Resources
• ADF — Automatic Direction Finder
• COBT — Calculated Off Block Time
• EAS — Equivalent Airspeed
• CW — Clockwise
• TDMA — Time Division Multiple Access
• CI — China Airlines - Taiwan
• RDF — Radio Direction Finder
• RCU — Remote Control Unit
• ANS — Answer
• PAR — Precision Approach Radar
• NAAQS — National Ambient Air Quality Standards (US)
• F — Degrees Fahrenheit
• TOT — Total
• FMC — Federal Maritime Commission's
• AUG — August
• ARINC 429 — Mark 33 Digital Information Transfer System
• PABX — private automatic branch exchange (telephone)
• FEP — Front End Processor
• CDL — Configuration Deviation List
• SEQ — Sequence
• AVMED — Aviation Medicine
• ERP — Effective Radiated Power
• DAFIF — Digital Aeronautical Flight Information File
• ELT — Emergency Locator Transmitter
• NFPA — National Fire Protection Association
• NOV — November
• PMP — Project Management Plan
• EW — Eurowings
• ACARS — Aircraft Communications Addressing and Reporting System
• ATD — Actual Time of Departure
• SHF — Super High Frequency
• CX — Cathay Pacific Airways
• IRU — Inertial Reference Unit
• ITF — International Transport Workers' Federation
• LT — Liner Terms
• ARINC 597 — Aircraft Communications Addressing And Reporting System
• DRAUGHT — Depth to which a ship is immersed in water
• AT&T CSA — At&t Customer Support Associate

• NACA — National Advisory Committee for Aeronautics
• CPS — characters per second
• CPD — Charterers Pay Dues
• DHDWTSBE — Despatch Half Demurrage on Working Time Saved Both Ends
• ABV — Above
• NCS — National Communications System
• ATFM — air traffic flow management
• OU — Croatia Airlines
• EFQM — European Foundation for Quality Management's
• ITSM — Information Technology Service Management
• TBO — Time Between Overhaul
• AOM — Aircraft Operating Manual
• EBU — Engine Build Unit
• TK — Turkish Airlines
• ADC — Air Defense Command
• CMC — Central Maintenance Computer
• RDP — Radar Data Processing
• SBIR — Small Business Innovation Research
• NW — Northwest Airlines
• RMS ERROR — Root Mean Square error.
• LF — Load Factor
• ETO — Estimated Time Over
• BOC — Bell Operating Company
• ITMRA — Information Technology Management Reform Act (Part of the Clinger-Cohen Act)
• FOUO — For Official Use Only
• AD — airworthiness directives (FAA)
• DIR — Directory
• ID — IDentifier
• JAN — January
• AY — Finnair, Oyj - Finland
• 3D — Three Dimensional
• BRK — Break
• DCE — Data Communication Equipment
• ATMAC — Air Traffic Management Advisory Committee
• MSDA — Material Safety Data Sheet
• FLT — Flight
• ARINC 743A — GPS/GLONASS Sensor
• EVM — Earned Value Management
• CAT X — Category x Precision Approach
• AUTOVON — Automatic Voice Network
• NTE — Not-To-Exceed
• WPM — speech--words per minute
• AIRNAV — Airports and Navigation Aids Database System
• YD — Yaw Damper
• LY — El Al Israel Airlines
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• HDOP — Horizontal Dilution of Precision
• ADDS — Aviation Digital Data Service
• FO — For Orders
• V — Volt (measurement)

• PAPI — Precision Approach Path Indicator (aviation)
• AF — Air France
• R — Right
• CRM — Crew Resource Management
• MCW — Modulated Continuous Wave
• RMNDR — Reminder
• FRS — Functional Requirements Specifications
• JCN — Job Control Number
• CEQ — Council on Environmental Quality (U.S.)
• TLV — Type-Length-Value
• SRV — Server
• BIT(E) — Built-ln-Test (Equipment)
• GOES — Geostationary Operational Environmental Satellite
• ARINC 408A — Air Transport Indicator Cases And Mounting
• DID — direct inward dial
• FCL — Full Container Load
• CONS — consumption
• MDT — Mean Down Time
• RTOS — Real-Time Operating System
• AWACS — Airborne Warning And Control System
• KE — Korean Airlines
• QPSK — aeronautical quadrature phase shift keying
• FOFFER — Firm Offer
• CDI — Course Deviation Indicator
• CVR — Cockpit Voice Recorder
• MAG — Magnetic
• OVERBOARD — Over the side or out of the ship
• T — Time
• OCT — October
• SDLC — Software development life cycle
• BRG — Bearing
• HMI — Human Machine Interface
• AVAIL — Available
• MDA — Minimum Descent Altitude
• A/A — Air-to-Air
• GFE — Government-Furnished Equipment
• NTZ — No Transgression Zone
• CCU — Central Control Unit
• ADZY — Advisory
• RSVN — Reservation
• AEA — Association of European Airlines
• CGL — Circling Guidance Lights
• RAIM — Receiver Autonomous Integrity Monitoring
• NOTAM — Notice to Airmen
• AAIM — Aircraft Autonomous Integrity Monitoring
• SN — Brussels Airlines
• DEM — German mark
• GW — Gross Weight
• DAF — Deliver At Frontier
• ADIRS — Air Data Inertial Reference System

• Z — Zulu (Greenwich mean time)
• AWB — Air Waybill
• AHL — Australian Hold Ladders
• AIP — Aeronautical Information Publication
• ASD — Aircraft Situation Display
• PII — Personally Identifiable Information
• DFDAU — Digital Flight Data Acquisition Unit
• HUD — Head-Up Display
• ARINC 747 — Flight Data Recorder
• BROB — Bunkers Remaining on Board
• PPI — Plan Position Indicator
• BWAD — Brackish Water Arrival Draft
• PERF — Performance
• DOP — Dropping Outward Pilot
• SEP — September
• FOT — Free On Truck
• DEIS — Draft Environmental Impact Statement (US)
• FEIS — Final Environmental impact statement (US)
• RNP5 — Required Navigation Performance 5
• DNRCAOSLONL — Discountless and Non-Returnable Cargo and/or Ship Lost or Not Lost
• ISA — International Standard Atmosphere
• ACT — Active
• W — West
• GPRA — Government Performance and Results Act
• IPV6 — Internet Protocol Version 6
• INS — Inertial Navigation System
• OT&E — Operational Test and Evaluation
• OGC — Open Geospatial Consortium
• SAW — Surface Acoustic Wave
• ARINC 573 — Aircraft Integrated Data System Mark
• HG — Mercury (Latin Hydrargyrum)
• EFMS — Experimental Flight Management System
• ARINC 575 — Mark 3 Subsonic Air Data System
• BR — Eva Airways Corporation
• IFOR — Implementation Force
• RNP — Required Navigation Performance
• CAVOK — Ceiling And Visibility OK (Kav-okay)
• AOM — Aircraft Operations Manual
• EXEC — Execute
• ACN — Aircraft Classification Number
• VAN — Value Added Network
• CCITT — Comite Consultatif International de Telegraphique et Telephonique (International Telegraph and Telephone Consultative Committee) [now ITU-T]
• DH — Decision Height
• DOI — United States Department of Interior
• C — Close
• FRB — Failure Review Board
• ADCOM — Address Commission
• AFS — Aeronautical Fixed Service
• NRT — Net Restricted Tonnage
• ILO — International Labour Organisation

• ARTCC — Air Route Traffic Control Center
• EIA — Extended Interaction Amplifier
• SP — Space
• A/S — Alongside
• EADI — Electronic Attitude Director Indicator
• HGT — Height
• LH — Lufthansa German Airlines
• A/P — Autopilot
• GDOP — Geometric Dilution Of Precision
• AUTOCAD — Automatic Computer Aided Design
• VSWR — Voltage Standing Wave Ratio
• XEU — European Currency Unit
• ALQDS — All Quadrants
• DCA — Defensive Counter Air
• EASA — European Aviation Safety Agency
• 1 :1 — One-to-one relationship
• DEL — Delete
• TGT — Target
• GML — Geography Markup Language
• WOCL — Window of Circadian Low
• VMC — visual meteorological conditions
• UL — Uplink
• MECO — Main Engine Cutoff
• BL — Blowing (METAR descriptor)
• A02 — Automated Observation With Precipitation Discriminator
• BOFFER — Best Offer
• DDS — Digital Data Service
• FDOD — CFMU – Flight Data Operations Division
• FONSI — Finding of no significant impact. See Environmental impact statement (US)
• ASI — Air Speed Indicator
• MDO — Marine Diesel Oil
• FANS — Future Air Navigation System
• PRKG — Parking
• OTFO — Operations Technical Field Office
• EST — Estimated Ship Time
• WO — World Airways, Inc
• AD — Aerodrome
• ADIZ — Air Defense Identification Zone
• ARO — Air Traffic Services Reporting Office
• DGNSS — Differential Global Navigation Satellite System
• ARPA — Advanced Research Project Agency's
• RPV — Remotely Piloted Vehicle
• MEL — Minimum Equipment List
• MOLOO — More or Less Owners Option
• ARINC — Aeronautical Radio Incorporated
• MIRL — Medium Intensity Runway Lights
• MAA — Maximum Authorized Altitude
• CAP — Combat Air Patrol
• BOB — Bunker On Board
• SSR — Software Specification Review

• ACCT — Accounting Records
• IN.HG. — inches of mercury
• EDF — Electricité de France
• FSRM — Facility Security Risk Management
• FADEC — Full Authority Digital Engine Control
• IMA — Integrated Modular Avionics
• FP — Flight Plan
• NCAR — National Center for Atmospheric Research (US)
• AOB — Air Order of Battle
• A/C — Aircraft Commander
• CFAR — Constant False Alarm Rate
• ATE — Automatic Test Engineer
• OK — Czech Airlines
• LW — Low Water
• NAS — National Airspace System
• DEM — Demurrage
• CHTRS — Charterers
• SU — Aeroflot Russian Airlines
• ARINC 603 — Airborne Computer Data Loader
• DBS — Direct Broadcast Satellite
• NAVDB — Navigation Data Base
• ECS — Environmental Control System (Subsystem)
• BADA — Base of Aircraft Data ; Aircraft performance Data
• ILS — Instituteument Landing System
• FREE EXINS — Free of any Extra Insurance
• DA — Disbursement Account
• VSCF — Variable-Speed Constant Frequency
• SH — Showers
• HDG — Heading
• CVSM — Conventional Vertical Separation Minimum
• GBAS — Ground Based Augmentation System
• RDIF — Radar Data Interchange Format
• ANSP — Air Navigation Service Provider
• OBO — Ore/Bulk/Oil vessel
• CD — Candela
• A&P — Airframe & Powerplant
• VCO — Voltage Controlled Oscillator (Oscillation)
• SARPS — Standards and Recommended Practices
• MLW — Maximum Landing Weight
• TBS — To Be Supplied(by government)
• PHA — Preliminary Hazard Analysis
• BENDS — Both Ends (shipping)
• EET — Estimated Elapsed Time
• ACU — Antenna Control Unit
• RFC — Request For Change
• ARINC 557 — Airborne Voice Recorder
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• RM — Risk Management
• CBI — Computer Based Instruction
• UT — Universal Time

• CCIR — International Radio Consultative Committee (French Acronym)
• FZRA — Freezing Rain (METAR Code)
• LZ — Balkan Bulgarian Airlines
• DEG — Degree
• NPR — National Performance Review (office)
• CPDLC — Controller Pilot Data Link Communications
• IG — Inspector General (HHS)
• FACF — Final Approach Course Fix
• ARINC 571 — Inertial Reference System
• TCU — Towering Cumulus
• OWS — Owners
• CIRM — International Radio Maritime Committee
• COACP — Contract Of Affreightment Charter Party
• PSN — Packet Switched Network
• CAASA — Commercial Aviation Association of Southern Africa
• ULR — Ultra Long Range
• CSD — Constant Speed Drive
• ACM — Airspace Control Measures
• ARINC 542A — Digital Flight Data Recorder
• FZFG — Freezing Fog
• SID — Standard Instrument Departure
• CROB — Cargo Remaining on Board
• NAABSA — Not Always Afloat But Safely Aground
• AFSS — Automated Flight Service Station
• DR — Dead Reckoning
• WP — Work Package
• AIDC — Air traffic control Inter-Facility Ground Data Communications
• AKARD — Available Knowledge And required system Research and Development
• J2EE — Java 2 Enterprise Edition
• PFD — Primary Flight Display
• BOW — The forward part of a ship
• AFFSC (E) — Air Forces Flight Safety Committee (Europe)
• ECAM — Electronic Centralized Aircraft Monitor
• WGS 84 — World Geodetic System 1984
• COV — Cover
• SAC — Strategic Air Command
• W — White
• EQPT — Equipment
• VCCS — Voice Communication and Control System
• FIOS — Free In/Out Stowed
• BA — Braking Action
• DNIC — Data Network Identification Code
• AVBL — available
• ARINC 421 — Guidance For Standard Subdivision of ATA Spec 100 Numbering System for Avionics
• NRZ — Non-Return-To-Zero
• LIM — Limit
• OP — Operational
• NAS — National Aircraft Standard
• SSALS — Simplified Short Approach Lighting Systerm
• DETRESFA — distress phase (lCAO)

• ARINC 591 — Quick Access Recorder For Aids System
• AQP — Advanced Qualification Program
• SS 30 — 30 Minutes after Sunset
• PROC — Procedure
• MTBR — Mean Time Between Replacement
• 8.33 STATE — A State initially implementing 8.33 kHz channel spacing
• ASTERIX — All-purpose Structured Eurocontrol Radar Information Exchange
• HIRO — High Intensity Runway Operation
• IRS — Inertial Reference System
• MRA — Minimum Reception Altitude
• ADZD — Advised
• SDIS — Switched Digital Integrated Service
• ARINC 566 — Airborne VHF Communications Transceiver And Mark 1 VHF SATCOM System
• ARINC 740 — Multiple-Input Cockpit Printer
• PA — Pan American Airways
• SV — Space Vehicle
• SSEC — Static Source Error Correction
• HO — Hold Over
• ISMLS — Interim Standard Microwave Landing System
• DITCO — Defense Information Technology Contracting Office (formerly DECCO)
• AOC — Airline Operation Control
• ALP — Airport Layout Plan
• TDD — Time Division Duplex
• OL — Operating Location
• MOD — Modified
• LLWAS — Low Level Wind Shear Alert System
• FIS — Flight Information Service
• CLD — Cloud
• HEX — Hexadecimal (base 16)
• BT — berth terms
• FSS — Flight Service Station
• AP — Airport
• GS — Ground Speed
• CART — Classification And Regression Tree (method In Statistical Analysis)
• FMC — Flight Management Computer
• AVOL — aerodrome visibility operational level
• DPSK — Differential Phase Shift Keying
• AC — Altocumulus
• CDT — Command Delivery Time
• FZDZ — Freezing Drizzle
• NSAP — Network Service Access Point
• BCA — Benefit/Cost Analysis
• HOV — High Occupancy Vehicle
• TLOF — Touchdown and Lift-off Area
• HMI — Hazardously Misleading Information
• POL STAT — Policy Statement
• TCA — Terminal Control Area
• THR — Thrust
• HVAC — Heating, Ventilating, And Air Conditioning
• CUST — Customs

• JAN — January
• FRG — Federal Republic of Germany's
• ARINC 601 — Control/Display Interfaces
• ADV — Advise
• TAS — True Airspeed
• BSC — Binary Synchronous Communication
• FRT — Freight
• IMC — Instrument Meteorological Conditions
• FLAS — Flight Level Allocation Scheme
• CDRL — Contracts Data Requirements List
• HIWAS — Hazardous Inflight Weather Advisory Service
• IFR — Instrument Flight Rules
• PREV — Previous
• CAS — Close Air Support
• JUL — July
• ARINC 572 — Mark 2 Air Traffic Control Transponder
• NI — Network Interface
• JD TF — Job Description Task Force
• B — Blue
• FREQ — Frequency
• AACO — Arab Air Carriers Organisation
• CAS — Calibrated Air Speed
• GCA — Ground-controlled approach
• EEI — Essential Elements of Information
• RSYD — Release Subject to Your Discretion
• 4D FMS — 4D Flight Management System
• FRA — Federal Railroad Administration
• CAB — Civil Aeronautics Board
• NPS — Navigation Performance Scales
• SSAP — Source Service Access Point
• GA — General Aviation
• ECAC — European Civil Aviation Conference
• ATUTC — Actual Times Used to Count
• ND — Navigation Display
• NAT NAM — North Atlantic / North America
• ANTHAM — Antwerp-Hamburg Range
• FYG — For Your Guidance
• MTTRP — Mean Time to repair product
• LATA — Local Access and Transport Area
• UTC — Universal Time Coordinate
• CR — Current Rate
• IU — If Used
• SSR — secondary surveillance radar (ICAO/FAA)
• NSSL — National Severe Storms Laboratory
• ACSE — Application Control Service Element
• HIRTA — High Intensity Radio Transmission Area
• VTS — Vessel Traffic Service
• CTA/FIR — Control Area/Flight Information Region
• RIB — Routing Information Base
• FL — Flight Level

• FQR — Formal Qualification Review
• CTR — Container Fitted
• LSA — Lysergic Acid Amide
• 1 :M — One-to-Many relationship
• TYPH — Typhoon
• ALSF2 — ALS with Sequenced Flashers II
• AIRPROX — The code word used in air traffic incident report to designate aircraft proximity
• ARINC 606 — Guidance For Electrostatic Sensitive Device Utilisation & Protection, Sup. 1
• WHO — World Health Organisation
• FST — First
• SIP — State Implementation Plan
• ADA — Advisory Area
• ASDE-X — Airport Surface Detection Equipment - X (frequency) band
• QUAD — Quadrant
• LT — Long Ton
• DL — Downlink Message
• DEM — Digital Elevation Model
• ACI — Airports Council International
• LAAS — Local Area Augmentation System
• SVID — System V Interface Definition
• SLEP — Service Life Extension Program
• ARINC 757 — Cockpit Voice Recorder
• ATLA — Air Transport Licensing Authority
• ALERFA — alert phase
• OO — Owners Option
• CFDS — Centralised Fault Display System
• NDI — Nondestructive Inspection
• NORDO — No-Radio
• ACAIS — Air Carrier Activity Information System
• LRU — Line Replacement Unit
• GS — Glide Slope
• MNM — Minimum
• EPCU — Electrical Power Control Unit
• FSK — Frequency Shift Keying
• AILS — Automatic Instrument Landing System
• LGT — Light
• COTP — Connection-Oriented Transport Protocol
• JUN — June
• FIW — Free in wagon
• LGTD — Lighted
• EXTD — Extend
• ODALS — Omnidirectional Approach Lighting Systems
• ATCSCC — Air Traffic Control System Command Center
• GRT — Gross Registered Tonnage/Tons
• C&A — Certification and Accreditation
• CNL — Cancel
• IRM — information resource management
• FPM — Feet Per Minute
• WAAS — Wide Area Augmentation System
• VMIN — Basic Clean Aircraft Minimum CAS

• ALT HOLD — Altitude Hold Mode
• LOFT — Line-Oriented Flight Training
• ARINC 559A — Mark 2 Airborne HF SSB/AM System
• CPE — Customer Premise Equipment
• VGND — Ground Velocity
• FF — Fuel Flow
• CAEM — Commission for Aeronautical Meteorology (WMO)
• SARSAT — Search and Rescue Satellite
• FLTCK — Flight Check
• NR. — Number
• ASYNC — Asynchronous
• ARR — Arrive
• 5LNC — Five Letter Name Code
• LOM — Compass Locator at the Outer Marker
• BI — Both inclusive
• TSU — Technical Support Unit
• RNP-10 — Required Navigation Performance
• FEB — February
• CARSR — Common Air Route Surveillance Radar
• PUP — Principal User Processor (NEXRAD)
• FCA — Free Carrier Alongside
• LON — Longitude
• PJMM — Project Management Methodology
• VASI — Visual Approach Slope Indicator
• ARTS — Automated Radar Terminal System
• IMG — Immigration
• DBE — Disadvantaged Business Enterprise
• DA — Decision Altitude
• ODS — Operational Data Store (knowledge management)
• MMEL — Master Minimum Equipment List
• ATSU — Air Traffic Services Unit
• NRH — No Reply Heard
• FFA — Functional Failure Analysis
• ANA — All Nippon Airways
• CASA — Civil Aviation Safety Authority
• AIRAC — Aeronautical Information Regulation and Control
• HZ — Haze (METAR Code)
• NASTEP — National Airspace System Technical Evaluation Program
• ASN — Advance Shipment Notice
• CAT — Clear Air Turbulence
• VSBY — Visibility
• FDR — Flight Data Recorder
• ANC — Air Navigation Commission
• COB — Closing of Business
• NIMA — National Imagery and Mapping Agency (became National Geospatial-Intelligence Agency|NGA)
• CON — Continuous
• CDM — Collaborative Decision Making
• CST — Centistoke
• ATC-HMI — Air Traffic Control Human Machine Interface
• CRZ — Cruise

• WINDR — Wind Direction
• SITA — Société Internationale de Télécommunications Aéronautiques
• MM — Middle Marker
• FR — From
• SM — Statute Mile
• RNAV — Random Navigation Area Navigation
• ARINC 750 — VHF Data Radio
• HALO — High Altitude, Low Opening (skydiving term)
• AITS — Automated Inventory Tracking System
• CLC — Course Line Computer
• BASE AM — Base Arrival Manager
• DTS — Dedicated Transmission Service
• ADVCTN — Advection
• A/I — Accident/Incident
• CDTI — Cockpit display of traffic information
• DRK — Derrick
• LCN — Load Classification Number
• NOSIG — No Significant Change
• MVFR — Marginal Visual Flight Rules
• AOC — Aircraft Operating Company
• NP — Propeller speed
• DP — Dewpoint Temperatue
• FHA — Functional Hazard Analysis
• CMIP — Common Management Information Protocol (ATM)
• HSI — Horizontal Situation Indicator
• MNS — Mission Needs Statement
• ACNZ — Airways Corporation of New Zealand Ltd
• DAPS — Days all Purposes
• ILSP — Integrated Logistics Support Plan/Program
• ACH — Air traffic control Flight Plan Change
• TMU — Traffic Management Unit
• MCA — Minimum Crossing Altitude
• ESRI — Environmental Systems Research Institute (developer of geographic information systems (GIS) software, Redlands, California)
• ATAF — Allied Tactical Air Force (NATO)
• ELVENT — Electric Ventilation
• V — Velocity
• LIFR — Low Instrument Flight Rules
• RWY — Runway
• AMT — Aviation Maintenance Technician
• NEC — National Electric Code
• SUP — Supervisor
• RUC — Rapid Update Cycle
• SUA — Special-Use Airspace
• PIREP — Pilot (weather) Report
• STAR — Standard Terminal Arrival Route
• BIM — Building Information Model
• FPL — Full Performance Level
• FOQ — Free On Quay
• ALS — approach lighting system
• ALTRV — Altitude Reservation

• DES — Descent
• HAT — Height Above Touchdown
• FIR — Flight Information Region
• DO — Diesel Oil
• MCT — Maximum Continuous Thrust
• ARINC 596 — Mark 2 Airborne SELCAL System
• LDI — Landing Direction Indicator
• TBN — To Be Notified
• OCC — Operations control center
• TCAS — Traffic Collision Avoidance System
• MSSR — Monopulse Secondary Surveillance Radar
• LDG — Landing (aviation)
• WTSPT — Waterspout
• DET — Detention
• ARAG — Amsterdam Rotterdam Antwerp Gent Range
• NMC — National Meteorological Center (US)
• ALSF — Approach Lighting System With Sequenced Flashing Lights
• APRT — Airport
• FILO — Free In/Liner Out
• AWOS — Automated Weather Observing System
• AVHRR — Advanced Very High-Resolution Radiometer
• DOC — Document
• SSR MODE S — Selective Address SSR
• ACCID — Notification of an aircraft accident
• ADVY — Advisory
• VDF — Very high frequency Direction Finding station
• ABAS — Aircraft-based Augmentation System
• DESP — Despatch
• PAMPLAY — PAM rePLAY system
• PF — Pilot Flying
• ATZ — Aerodrome Traffic Zone
• MOC — Memorandum Of Cooperation
• NL — Engine Revolutions per Minute
• ARINC 579 — Airborne VOR Receiver
• FIOT — Free In/Out and Trimmed
• GCU — Generator Control Unit
• CFI — Certified Flight Instructor
• JPDA — Joint Probabilistic Data Association
• RTLS — Return To Launch Site
• ADF — Automatic Direction Finding
• IISLS — Improved Interrogation Side Lobe Suppression
• MTI — Moving Target Indicator
• LOF — Lloyds Open Form
• AT — Air Transport
• CRN — Crane
• SDP — Service Delivery Point
• SGS 85 — Sovietic Geodetic System
• SGI — Silicon Graphics Incorporated
• TMA — Traffic Management Advisor
• FAC — Fast as can

• MPO — Metropolitan Planning Organization
• STA — Scheduled Time of Arrival
• PFN — Pulse-Forming-Network
• AACC — Airport Associations Co-ordinating Council
• BYD — Beyond
• ASPH — Asphalt
• AODR — Authorizing Official Designated Representative
• BBB — Before Breaking Bulk
• AOV — Air Traffic Safety Oversight Service
• ATSAP — Air Traffic Safety Action Program
• ADREP — Aircraft Accident/Incident Data Reporting System
• ACSA — Allied Communications Security Agency
• AAA — Amended meteorological message
• OSH — Open Shelter Deck
• AARA — Amsterdam-Antwerp-Rotterdam Area
• RTCA — Radio Technical Commission for Aeronautics
• GUI — Graphic-User Interface
• ARINC 609 — Design Guidance For Aircraft Electrical Power Systems
• ASMA — Aerospace Medical Association
• FEW — Few
• DEP — Depart
• CDT — Controlled Departure Time
• ATO — Air Traffic Organization
• JURG — Joint Users Requirements Group
• LVL CHG — Level Change
• AMA — Area Minimum Altitude
• PSS — Packet Switched Service
• ST&E — Security Test and Evaluations
• FIOST — Free In/Out and Trimmed
• CD-ROM — Compact Disk - Read Only Memory
• DEA — Data Exchange Agreement
• TM — Traffic Management
• LHR — London Heathrow Airport, London, United Kingdom
• BSS — Basis
• V&V — Validation & Verification
• FOQA — Flight Operations Quality Assurance Programs
• MSK — Minimum Shift Keying
• A/H — Altitude/Height
• PROF — Profile
• JMCT — Job Management Consultative Team [job analysis]
• GNSS — Global Navigation Satellite System
• AACO — Arab Air Carriers Organization
• FPA — Focal Plane Array
• ARINC 404A — Air Transport Equipment Cases And Racking
• VASIS — Visual Approach Slope Indicator System
• LRNS — Long-Range Navigation System
• ADS-B — Automatic Dependent Surveillance-Broadcast
• CRT — Cargo Retention Clauses
• AUSEP — Australian RNAV Separation Standards
• CNCL — Cancel

• AFCAC — African Civil Aviation Commission
• DES — Descend
• FACC — Feature and Attribute Coding Catalogue
• AAOSA — Always Afloat or Safe Aground
• SMGC — Surface Movement Guidance and Control
• MCP — Mode Control Panel
• CRAM — Conditional Route Availability Message
• SUMI — Software Usability Measurement Inventory
• FMGC — Flight Management Guidance Computer
• ACCS — Air Command and Control System
• DLP — Data Link Processor
• FRQ — Frequent
• CBFT — Cubic Feet
• PROM — Programmable Read Only Memory (chip)
• ALCE — Airlift Control Element
• ARINC 745 — Automatic Dependent Surveillance, Supplement 1
• AAP — Advanced Automation Program
• AGHME — Aircraft Geometric Height Measurement Element
• A/L — Anti-ice
• BKN — Broken Sky (METAR Code)
• CAAC — Civil Aviation Administration of China
• LORAN — Long-Range Aid to Navigation
• RAD — Radio
• PFI — Private Finance Initiative
• FA — Final Approach
• ODIF — Open Document Interchange Format
• CRAF — Civil Reserve Air Fleet
• QDM — Magnetic Heading
• ARINC 744 — Full Format Printer
• DETR — Department of the Environment, Transport and the Regions
• OAT — Outside Air Temperature
• ADZ — Advise
• TDWR — Terminal Doppler Weather Radar
• AFIL — Air Filed Flight Plan
• QAR — Quick Access Recorder
• ADS — automatic dependent surveillance
• AP — Autopilot
• ATCRB — Air Traffic Control Radar Beacon
• PELA — Proficiency test in English Language for ATCOs
• AOA — Airport Operations Area
• ARINC 306 — Guidance For Designers Of Aircraft-Electronic Installations
• LORAN — Long Range Navigational System
• AAS — advanced automation system (FAA)
• RATCC — Radar Air Traffic Control Center
• AFDS — Autopilot Flight Director System
• CEC — Commission of the European Communities ;
• 8.33 CP — 8.33 Contact Person
• API — FAA Office of International Aviation
• RMP — Radio Management Panel
• PROB — probability

• SHAPE — Supreme Headquarters Allied Powers Europe (NATO)
• HX — No Specific working hours
• DEGS — Degrees
• FTS — Federal Telecommunications System
• IAO — In And Out
• ATIS — Automatic Terminal Information Service
• FSM — Flight Schedule Monitor
• CALS — Computer-aided Acquisition and Logistic Support
• MN — Magnetic North
• SDR — Service Difficulty Report
• SNPA — Subnetwork Point of Attachment
• ITWS — Integrated Terminal Weather System
• TDOP — Time Dilution of Precision
• FTI — FAA Telecommunications Infrastructure
• BN — Booking Note
• AZM — Azimuth
• ASC — AUTODIN Switching Center
• EFIS — Electronic Flight Information System
• AAIB — Air Accident Investigation Branch
• JTIDS — Joint Tactical Information Distribution System (djay-tidz)
• RESMA — Requirements for Emergency and Safety Airborne Equipment
• MTD — Moving Target Detection
• CTAF — Common Traffic Advisory Frequency
• ATS — Air Traffic Services
• DIA — Denver International Airport
• RAD — Radial
• FIO — Free In/Out
• INIT — Initial
• ACAMS — Aircraft Condition Analysis and Management System
• DF — Direction Finder (Finding)
• AEFMP — Algeria, Spain, France, Maroc, Portugal Project
• RTSE — Reliable Transfer Service Element
• SSR MODE S WG — Secondary Surveillance Radar Mode Selective WG
• TOP — Cloud Top
• SSB — Single Side Band
• CFIT — Controlled Flight into Terrain
• NSSFC — National Severe Storms Forecast Center
• ARINC 566A — Mark 3 VHF Communications Transceiver
• ICASM — International Congress of Aviation and Space Medicine
• EV — every
• FDPS — Flight Data Processing System
• CRDA — Converging Runway Display Aid
• CATX — Categorical Exclusion
• FEU — Forty-Foot Equivalent Unit
• FSF IAS — Flight Safety Foundation International Aviation Safety
• DF — Direction Finding or Finder
• IF — Intermediate Fix
• DRFT — Drift
• RAPPI — Random Access Plan-Position Indicator
• FIT — Free In Trimmed

• BM — Beam, Maximum
• FLM — Front Line Manager
• CPS — Central Processing System
• GDP — Ground Delay Program
• EC — East Coast
• AECB — Atomic Energy Control Board
• C/N — Carrier-To-Noise Ratio
• AIRS — Advanced Infrared Sounder
• CBM — Cubic Metres
• ARINC 608 — Standard Modular Avionics Repair And Test System
• TWIP — Terminal Weather Information for Pilots
• ARINC 600 — Air Transport Avionics Equipment Interfaces
• DIP — Drop and Insert Point
• ECMT — European Conference of Ministers of Transport
• MET — Meteorological
• ACAS — Airborne Collision Avoidance System
• FRZN — Frozen
• ESDI — Enhanced Small-Device Interface
• MODIS — moderate-resolution imaging spectrometer (NASA/GSFC)
• MT — Mertic Tonne
• IMDG — International Maritime Dangerous Goods
• ALPAP — Air Line Pilots Association of the Philippines
• ALSF1 — ALS with Sequenced Flashers I
• ELBA — Emergency Locator Beacon Aircraft
• ATCO — Air Taxi Commercial Operator
• PFA — Probability of False Alarm
• LO — Low
• COP — Custom of Port
• DZ — Drizzle
• TODA — Take-Off Distance Available
• AOR-E — Atlantic Ocean Region East
• PASTUS — Past Us
• AT — Air Traffic
• BUECE — Back-up Emergency Communications Equipment
• IFRB — International Frequency Registration Board of the International Telecommunication Union
• LTOG — Long Term Objectives Groups
• CP — charter-party
• LCL — Less Container Loaded
• TROP — Tropopause
• MOCA — Minimum Obstruction Clearance Altitude
• BRF — Brief
• ATIS-B — Automatic Terminal Information Service - Broadcast
• DMS — Database Management System
• CSIS — Centralized Storm Information System
• APM — approach path monitor
• CAR — Caribbean Region
• BTN — Between
• OCA — Oceanic Control Area
• SVCBL — Serviceable
• M — Manual

• ASPW — Any Safe Port in the World
• ADS-R — Automatic Dependent Surveillance-Report
• AVI — Audio/Video Interleaved Format
• UAB — Until Advised By
• AMSS — Aeronautical Mobile Satellite Service
• SMT — station management (protocol)
• DVD — Dual View Display
• DTM — Digital Terrain Model
• AFISO — Aerodrome Flight Information Service Officer
• CIE — International Commission on Illumination
• PRN — Pseudo-Random Noise
• AIC — Aeronautical Information Circular
• ALTM — Altimeter
• IOT&E — Independent Operational Test and Evaluation
• EIU — Even If Used
• BASE AMD — Base Arrival Manager Display
• BRA — Bearing, Range and Altitude
• RMI — Radio Magnetic Indicator
• ARINC 605 — Users Guide For ARINC 616 Avionics Subset Of ATLAS Language
• FCC — Flight Control Computer
• TURB — Turbulence
• AASA — Air Lines Association of Southern Africa
• JAR-OPS — Joint Airworthiness Requirements Operations
• HDD — Head Down Display
• IVSI — Instantaneous Vertical Speed Indicator
• PMA — Parts Manufacturer Approval
• ARINC 574 — Passenger Announcement, Entertainment & Service Multiplex System
• MUD — Mud Log
• RDSIM — Runway Delay Simulation Model
• 3D — Palair Macedonian
• AOPA — Aircraft Owners and Pilots Association
• ARINC 414 — General Guidance For Equipment And Installation Engineers
• FSAS — Flight Service Automation System
• CNDN — Canadian
• ACF — Area Control Facility
• I — Italy
• COT — At the Coast
• ABOVE DECK — On the deck
• AST — FAA Office of Commercial Space Transportation
• JTSO — Joint Technical Standard Order
• EGPWS — Enhanced Ground-Proximity Warning System
• BRL — Building Restriction Line
• FSDO — Flight Standards District Office
• UAT — Universal Access Transceiver
• DISCH — Discharge
• CRM — Cockpit Resource Management
• ALRS — Alerting Service
• HP — Holding Pattern
• ECA — European Cockpit Association
• AFL — Actual Flight Level

• AIMS — Airplane Information Management System
• ATCT — Airport Traffic Control Tower
• RD-CHANNEL — Random Data Channel
• FBO — Fixed-Based Operator
• ADES — Aerodrome of Destination
• TIAS — True Indicated Airspeed
• ATTIS — AT&T Information Systems
• PBD — Place Bearing/Distance
• RSTD — Restricted
• STAB — Stabilizer
• APA — Allied Pilots Association
• CASS — Continuing Analysis and Surveillance System
• AACI — Airports Association Council International
• MEA — Minimum Enroute Altitude
• AWOG — All Weather Operations Group
• ALF — Aloft
• ACID — Aircraft Identification
• VNAV — Vertical Navigation
• ATLC — Atlantic
• ATMAS — Air Traffic Management Automated System
• RMK — Remark
• HW — High Water
• ONC — Operational Navigation Chart
• ACCC — Australian Competition Consumer Commission
• GLOSS — Global Sea Level Observing System (of IOC)
• AFT — At or towards the stern or rear of a ship
• CDV — Compressed Digital Video
• ARSR — Air Route Surveillance Radar
• AFIZ — Aerodrome Flight information Zone
• UIR — Upper Information Region
• AFIS — Airport Flight Information Service
• BAA — British Airport Authority
• M/V — Merchant Vessel
• IUHTAUTC — If Used, Half Time Actually To Count
• ASI — Aviation Safety Inspector
• LCTD — Located
• AAPA — Association of Asia Pacific Airlines
• A/G — Air/Ground
• IMPR — Improve
• F&E — Facilities and Equipment
• SA — System Administrator
• IMAL — Integrity Monitoring Alarm Limit
• ARINC 415 — Operation/Technical Guidelines On Failure Warning and Functional Test
• HDG SEL — Heading Select
• FHINC — Fridays/Holidays Included
• FAP — Final Approach Point
• FIX — position in space usually on aircraft�s flight plan
• DFRT — Deadfreight
• MTF — Modulation transfer function.
• RBP — Radar Bypass Processor

• STOL — Short Takeoff And Landing
• ARINC 578 — Airborne ILS Receiver
• DEST — Destination
• UHF — Ultrahigh Frequency
• PVD — Plan View Display
• WMSCR — Weather Message Switching Center Replacement
• AOC — Aircraft Operations Centre
• ASCP — Aviation System Capacity Plan
• CIP — Capital Investment Plan
• DBRITE — Digital Bright Radar Indicator Tower Equipment
• TMC — Thrust Management Computer
• AO — Aircraft Operator
• DALR — Digital Audio Legal Recorder
• OMI — Organisation Maritime Internationale (French: International Maritime Organization; UN)
• A/N — Arrival Notice
• AAC — Airline Administrative Communication
• TRU — True
• ASLAR — Aircraft Surge Launch And Recovery
• KLM — KLM Royal Dutch Airlines
• GRI — General Rate Increase
• ARINC 413A — Guidance For Aircraft Power Utilisation And Transient Protection
• BS — Bootstrap Service
• ABOARD — On or within the ship
• FSP — Flight Strip Printer
• SES — Single European Sky
• PHPD — Per Hatch Per Day
• SATCAS — Selenia Air Traffic Control Automated System
• DIS — Distance
• DNSTRM — Downstream
• QDR — Reciprocal Magnetic Bearing
• RSLS — Receiver Side Lobe Suppression
• EFAS — En Route Flight Advisory Service
• TO EPR — Takeoff Engine Pressure Ratio
• ADIC — ATS Interfacility Data Communications
• PHINOM — Nominal Bank Angle
• MAX CLB — Maximum Engine Thrust for Two-Engine Climb
• AIMS — Aircraft Integrated Monitoring System
• AOC — Aerodrome Obstacle Chart
• VNO — Maximum structural cruising speed
• QTG — Qualification Test Guide
• DMU — Data Management Unit
• CEW — Civil Engineering Works
• PRORES — Problem Resolution
• KCAS — Knots Calibrated Airspeed
• WFTU — World Federation of Trade Unions
• PMS — Performance Management System
• TODAH — Take Off distance available, helicopter
• EGT — Exhaust Gas Temperature
• B/C — Benefit/Cost
• XAP — Crossing Alternate Proposal Message

• EEC — Electronic Engine Control
• FAX — Facsimile Equipment
• NCB — National Cargo Bureau
• IFPZ — IFPS Zone
• PTUL — Pilots Trade Union of Latvia
• TRK — Track
• EOF — Emergency Operating Facility
• RD — Requirements Document
• SOPA — Standard Operating Procedure Amplified
• SSTS — Space Surveillance and Tracking System
• MOTNE — Meteorological Operational Telecommunication Network in Europe
• ASPENN RPG — Aeronautical Fixed Service Planning Study EUR/NAM/NAT Regional Planning Group
• AMSSP — Aeronautical Mobile Satellite Service Panel
• ATDS — Airborne Tactical Data Systems (USN)
• E M — signalling
• BTH (R) — Beyond the Horizon (Radar)
• AFIS — Aerodrome Flight Information Service
• FDIO — Flight Data Input/Output
• AOR-W — Atlantic Ocean Region West
• AEWPD — Adapted EATM Work Programme Document
• EFIS — Electronic Flight Instrument System
• TCP / IP — Transmission Control Protocol / Internet Protocol
• CWBS — Contract Work Breakdown Structure
• PMS — Pavement Management System
• FOD — Foreign Object Debris
• AMASS — Airport Movement Area Safety System
• AAC — Mike Monroney Aeronautical Center
• BASE — Cloud base
• ARINC 742 — Design Guidance For Windshear Warning and Guidance Equipment
• SATCOM — Satellite Communication
• RCH — Reach
• SESAR — Single European Sky ATM Research
• ARF — Airport Reservation Function
• M. — meter
• CNVTV — Convective
• ASR-WSP — Airport Surveillance Radar-Weather System Processor
• AT&T ASDC — At&t Agency Service Delivery Center
• XPNDR — Transponder
• QCM — Quality Control Manager
• DME/P — Precision Distance Measuring Equipment
• QAE — Quality Assurance Evaluator
• A/A — Air/Air
• 4D-NAV — 4D Navigation
• MDD — Meteorological Data Distribution
• ISPS — International Ships and Port Security system
• A/G — Air-Ground
• ECG — En Route Communications Gateway
• FTE — Flight Technical Error
• ALPA — Japan Air Line Pilots Association of Japan
• MLDT — Mean Logistic Down Time

• AOC — Airline Operational Control
• RDPS — Radar Data Processing System
• ICAO — International Civil Aviation Organisation
• LTP — Landing Threshold Point
• ASDA — Accelerate-Stop Distance Available
• PTH — Path
• AIG — Airbus Industries Group
• IRD — Initial Requirements Document
• ATFMS — Air Traffic Flow Management System
• ROC — Regional Operations Center (NATO)
• HHMMSS — hour-hour / minute-minute / second-second
• AIFSS — Automated International Flight Service Station
• MAR — March
• SGL — Signal
• FIDS — Flight Information Display System
• ERR — Error message
• CWS — Control Wheel Steering
• 4D — Four-Dimensional
• RSR — en-Route Surveillance Radar
• SAT — Static Air Temperature
• GN — Grain
• VS — Design Speed for Maximum Gust Intensity
• SUBJ — Subject
• APPA — Asociacion Profesional de Pilotos Aviadores de Costa Rica
• THR HOLD — Throttle Hold
• AATF — Airworthiness Assurance Task Force
• SVVP — Software Verification and Validation Plan
• DABS — Discrete Address Beacon System
• JSS — Joint Surveillance System
• LNAV — Lateral Navigation
• ADLY — Arrival Delay
• ATAG — Air Transport Action Group
• FIXM — Flight Information Exchange Model
• ES&H — Environmental Safety And Health
• APC — Aeronautical Passenger Communication
• LASKA — Learning And Skills Acquisition
• ELD — Electrical Load Database
• AAIB — Air Accidents Investigation Branch
• AMVER — Automated Mutual-Assistance Vessel Rescue system
• SASKI — Name of an ATS Route reporting point
• FPAP — Flight Path Alignment Point
• ASQP — Airline Service Quality Performance
• EFB — Electronic Flight Bag
• EXP — Expect
• FAF — Final Approach Fixes
• CWY — Clearway
• MMI — Marshall Management Instruction
• ALO — Air Force Liaison Officer
• AAME — Association of Aviation Medical Examiners
• FPPU — Flight Planning and Flight Progress Updating

• COBLDN — Closing of Business London
• C/A CODE — Course / Acquisition Code
• ATLAS — Air Traffic Land and Air Study
• JAL — Japan Air Lines
• AJA — Acquisition & Business Services, Air Traffic Organization
• CPF — Central Processing Facility
• AMOS — Automated Meteorological Observation Station
• LECT — Lecture
• PABX — Private Automated Branch EXchange (company Phone System)
• FPA — Flight Path Angle
• CUF — Cumuliform
• ETVCT — En Route Training Voice Communication Tool
• SURVITE — Surveillance Integrated Tested for EATMS
• RPI — Real Property Inventory
• TDO — Tornado
• MAUW — Maximum All Up Weight
• ASCII — American Standard Code for Interface and Interchange
• VRB — Variable
• VTOL — Vertical Take-Off & Landing
• FPO — Flight Procedures Office
• FDP — Flight Data Processing
• ALPA-FYROM — Air Line Pilots Association of The Former Yugoslav Republic of Macedonia
• GEO — Geographic
• AEEC — Airlines Electronic Engineering Committee (ARINC)
• DESC — Descending
• AMS — Acquisition Management System
• EX GDR — ex German Democratic Republic
• BSU — Beam Steering Unit
• DPTH — Depth
• WSW — West-South-West
• V/S — Vertical speed
• AAH — Autonomous Aircraft Hybrid
• THDG — True Heading
• VDC — Volts, Direct Current
• AADC — Airport Average Daily Capacity
• ARAC — Aviation Rulemaking Advisory Committee (FAA)
• TLS — Target Level of Safety
• FCL — Flight Crew Licensing
• DSPY — Display
• NCN — Non-compliance Notification
• METAR — Meteorological Terminal Aviation Routine Weather Report
• FG — Fog Gun
• AIRC — Aeronautical Information and Control
• ACR — Atlantic Co-ordinated Route
• FI — Flight Instructor
• RTO — Rejected Take-Off
• ARP — Aerodrome Reference Point
• IFPS — Integrated Initial Flight Plan Processing System
• ALOFT — Above the deck of the ship
• DL — Delta

• ERIDS — En Route Information Display System
• LMM — Compass locator at the middle marker
• AFN — air traffic services facilities notification
• AIR — Aircraft Certification Service
• IAG — International Association of Geodesy (IUGG)
• HF — Human Factors
• OPT — Optimum
• ANCA — Airport Noise and Capacity Act
• B&H — Bosnia & Herzegovina
• OTV — Orbital Transfer Vehicle
• ARINC 594 — Ground Proximity Warning System
• ARR SP — Arrival Sequence Planner
• CDA — Continuous Descent Approach
• DDP — Distributed Data Processing
• NYPE — New York Produce Exchange
• TSNT — Transient
• OIG — Office of the Inspector General
• AOC — Aeronautical Operational Communications
• PDC — Pre-Departure Clearance
• CNS/ATM-1 — Communication, Navigation and Surveillance / Air Traffic Management Package 1
• SEA/TAC — Seattle/Tacoma International Airport
• MNOP — Maximum Normal Operating Pressure
• GA — General Average
• VCMAX — Active Maximum Control Speed
• FSD TF — Functional Specification Development Task Force
• APMS — Automated Performance Measurement System
• HAPI — Helicopter Approach Path Indicator
• ARINC 746 — Cabin Communications System, Supplement
• AJR — System Operations Services, Air Traffic Organization
• WMO — World Meteorological Organisation
• A/T — autothrottle
• TVE — Total Vertical Error
• UAP — User Application Profile
• CTA — Control Area (Air Traffic)
• COE — Center of Excellence
• IFPZ — Integrated Initial Flight Plan Processing System Zone
• ABDIS — Automated Data Interchange System Service
• IMPACT — Information Market Policy Actions
• MDAU — Maintenance Data Acquisition Unit
• BSS — Best Signal Selection
• AC — Advisory Circular
• CAVOK — Clouds and Visibility OK
• RAPPI — Radar Access Plan Position
• ATPL — Air Transport Pilot Licence
• ATCO — Air Traffic Control Officer
• CYTA — Cyprus Telecommunications Authority
• A01 — Automated Observation Without Precipitation Discriminator
• ACRP — Airport Cooperative Research Program
• VCSS — Voice Communications Switching System
• AICS — Aircraft Inventory and Charter System

• ATCRU — Air Traffic Control Radar Unit
• EHSI — Electronic Horizontal Situation Indicator
• FHEX — Fridays/Holidays Excluded
• PAWES — performance assessment and workload evaluation
• TWY — Taxiway
• IA — International Alphabet
• AEV — Annual Equivalent Value
• LYR — Layer
• CPA — Chairman's program assessment; closest point of approach
• DOTCC — Department of Transportation Computer Center
• ACC-PC — ACC Planning Controller
• SRTM — Shuttle Radar Topography Mission
• ATILO — Administrative Tribunal of the International Labour Organisation
• ADEP — Aerodrome of Departure
• XTRK — Cross Track Error
• ARINC 741P1 — Aviation Satellite Communication System:Part I- Aircraft Installation Provisions
• ADAP — Airport Development Aid Program
• OLDI — On-Line Data Interchange
• ECAC AREA — European Civil Aviation Conference Area
• ACDO — Air Carrier District Office
• CFP — Cold Front Passage
• AFFREIGHTMENT — The hiring of a ship in whole or part
• ACAA — Air Carrier Association of America
• YOYO — Only Y Available
• CWP — Controller Working Position
• AIDS TO NAVIGATION — Artificial objects to supplement natural landmarks indicating safe and unsafe waters
• WSO — Weather Service Office
• ADSP — Automatic Dependent Surveillance Panel
• BRM — Barometer
• HI FI SIM — High-Fidelity Simulator
• LS — Lumpsum Freight
• DITS — Digital Information Transfer System
• APA(CV) — Air Line Pilots Association (Cape Verde)
• PDR — Preferential Departure Route
• DTU — Data Terminating Unit
• AFMS — Automatic Flight Management System
• STANAG — (NATO) Standardisation Agreement
• ABET — Airspace Behavioural Engineering Technology
• CG — centre of gravity
• OVC — Overcast (METAR Code)
• ODAL — Omnidirectional Approach Lighting System
• ACI-NA — Airports Council International-North America
• ARINC 528 — Airborne Tape Recorder
• IVSR — Interim Voice Switch Replacement Program
• TN — True North
• NGA — National Geospatial-Intelligence Agency (formerly National Imagery and Mapping Agency; US government)
• REIL — Runway End Identification Light
• OFZ — Obstacle Free Zone
• CFWU — Central Flow Weather Unit
• PT — Product Team

• IAT — Investment Analysis Team
• AS — Altostratus
• SATSAR — Satellite-aided Search And Rescue
• DPNG — Deepening
• EB — Eastbound
• WBC — Weight and Balance Computer
• ATOS — Air Transportation Oversight System
• CSMC — Cyber Security Management Center
• RLSD — Released
• NADA — NADIN Concentrator
• MODE C — Altitude Reporting Mode of Secondary Radar
• AACC — Airport Associations Co-coordinating Council
• IFE — In-Flight Emergency
• IOSA — Iata Operational Safety Audit
• ARINC 576 — Mark 4 Subsonic Air Data System
• NAVAID — Navigational Aid
• FME — Force Majeure Excepted
• AATT — Advanced Aviation Transportation Technology
• BANS — BRITE Alphanumeric System
• MUT — Mean Up Time
• AAD — Assigned Altitude Deviation
• XMT — Excluding
• ATCO — Air Traffic Controllers Organization
• FE — Flight Examiner
• CEATS UAC — Central European Air Traffic Services Upper Airspace Control Centre
• CAST — Certification Authority Software Team
• PRM — Precision Runway Monitor
• VOM — Volt-ohm-milliammeter
• KB — Kilo Bytes (1,000 Bytes)
• PIC — Pilot In Command
• NAT SPG — North Atlantic Systems Planning Group
• ANP — Air Navigation Plan
• UAL — United Airlines
• DADS — Digital Aeronautical Database System
• ATCCC — Air Traffic Control Command Center
• CFDS — Central Flight Data Suite
• T/O — Takeoff
• EFSTS — Electronic Flight Strip Transfer System
• ELMS — Electronic Learning Management System
• B&D — Bearing and Distance
• FARAWAY — Fusion of Radar and ADS data through two WAY data link
• FSDPS — Flight Service Data Processing System
• ALRS — Approach Lighting System
• PFR — Probability of Failure Repair
• AMIS — Aircraft Management Information System
• RNLAF — Royal Netherlands Air Force (also KLu)
• RTS — Return To Service
• ARP — Aerospace Recommended Practice
• IGFET — Insulated Gate Field Effect Transistor
• HEL — Helicopter

• CMPL — complete
• FLIDRAS — Flight Data Replay and Analysis System
• DMN — Data Multiplexing Network
• NSW — No Significant Weather
• ADDA — Administrative Data
• TIS-B — Traffic Information Service Broadcast
• BRITE — Bright Radar Indicator Tower Equipment
• VHRR — Very High-Resolution Radiometer
• SMPS — Sector Maintenance Processor Subsystem
• ADIZ — Air Defence Identification Zone
• GLOC — Gravity-Induced Loss of Consciousness
• NAT MWG — North Atlantic Mathematicians Working Group
• ZFW — Zero Fuel Weight
• CRT — Choice Reaction Time
• 4-MAST — 4-MAST group
• EASA — European Aviation Safety Authority
• SVP — Supervisor
• EL — Electro-Luminescent
• ACL — Altimeter Check Location
• FIFO — Flight Inspection Field Office(s)
• WND — Wind
• AFRAA — African Airlines Association
• DAR — Designated Agency Representative
• HHMM — Hours and minutes
• NAVSAT — Navigation Satellite
• NBCAP — National Beacon Code Allocation Plan
• HED — Heading
• ASE — Altimetry System Error
• FSSA — Flight Service Station Automated Service
• DOD — Department of Defence
• AWSS — Automated Weather Sensors System
• ETOPS — Extended Range Twin-Engine Operations
• APPR — Approach
• ADLP — Aircraft Data Link Processor
• A&F — IFALPA Administration & Finance Committee
• FDESP — Free Despatch
• RA — Resolution Advisory
• RIMS — Runway Incursion Monitoring System
• FAL — Final Assembly Line
• PBS — Preferential Bidding System
• DNG — Danger
• IACA — International Air Carrier Association
• ALERT — Alert phase
• STWL — Stopway Lights
• ARINC 602 — Test Equipment Guidance
• AHR — FAA Office of Human Resources
• SETA — Systems Engineering and Technical Assistance
• ITU WARC-95 — International Telecommunication Union World Radio Conference
• ATCU — Air Traffic Control Unit
• QF — Quality Factor

• LMM — Locator middle marker
• GNCN — GENERAL CONDITIONS
• GPWS — Ground Proximity Warning System
• I&I — Impact & Implementation
• 5-ST-RSG — 5-States Route Structure Group
• ERAM — En Route Automation Modernization
• A — Aeroplane
• KT — Knots
• AFSFO — AFS Field Office
• CPCS — Consolidated Production Control System
• DTG — Distance-to-go
• RAES — Royal Aeronautical Society
• SWAP — Severe Weather Avoidance Program
• CNS/ATM — Communication, Navigation and Surveillance / Air Traffic Management
• XTK — Crosstrack
• CUR — Controller
• INM — Integrated Noise Model
• ARFF — Aircraft Rescue and Fire Fighting
• NLA — New Large Aircraft
• VY — Speed for best rate of climb
• V/STOL — Vertical or Short Take-Off and Landing
• NP — Network Protocol
• ARINC 602A — Test Equipment Guidance
• FISO — Flight Information Service Officer
• MDH — Minimum Descent Height
• ACOD — Area Conflict Detection
• AJS — Safety Services, Air Traffic Organization
• ALTN — Alternate
• AFO — Airport Field Office
• MDA/H — Minimum Descent Altitude/Height
• MMR — Multi-Mode Receiver
• SMR — Surface Movement Radar
• AP — Airport Patrol
• CWAR — Continuous Wave Acquisition Radar
• SCAT-1 APPROACH — Special Category 1 Approach
• ACPO — Aircraft Position Operator
• AACE — Airfield Approach Control Element
• AEREA — Association of European Research Establishments in Aeronautics
• DGAC — Direction Générale de l’Aviation Civile
• AMCP — Aeronautical Mobile Communications Panel
• ETG — Enhanced Target Generator
• WRNG — Warning
• TBC — The Boeing Company
• ARPL — ADEXP Format Repetitive Flight Plans Message
• FISA — Automated flight Information Service
• CACRC — Commercial Aircraft Composite Repair Committee
• FMF — Facility Master File
• G/A — ground to air
• C/S — Call Sign
• PALPA — Pakistan Air Line Pilots' Association

• DADC — Digital Air Data Computer
• NAWAU — National Aviation Weather Advisory Unit
• SGC — Swept Gain Control
• AGROUND — Touching or fast to the bottom
• AUX — Auxilliary
• ACEP — Airport Capacity Enhancement Plan
• OBST — Obstacle
• ADS-P — Automatic Dependent Surveillance-Panel
• FIS-B — Flight Information Services - Broadcast
• FWAD — Fresh Water Arrival Draft
• PT — Total Pressure
• CMIS — Common Management Information System
• GLD — Glider
• ARMATS — State Closed Joint-Stock Company of Armenian Air Traffic Services
• INBD — Inbound
• AEA — Eastern Region
• HURCN — Hurricane
• ARO — Airport Reservation Office
• AVSI — Aerospace Vehicle Systems Institute
• AEGIS — Airborne Early Warning Ground Environment Integrated Segment
• ISL — Intermediate Supplementary Flight Level
• PSDN — Public Switched Data Network
• AGI — FAA Office of Government and Industry Affairs
• AFIS — Automated Flight Inspection System
• GEADGE — German Air Defense Ground Environment
• HAA — Height Above Airport
• PMS — Program Management System
• CIDIN — Common ICAO Data Interchange Network
• DFW — Dallas Fort Worth International Airport
• IDENT — Identification
• 4DTN — 4D Trajectory Negotiation
• TEMPO — Temporary
• DOF — Date of Flight
• RP — Restoration Priority
• D/A — Digital-to-Analog
• DGELG — Dangerous Goods European Advisory Group
• RPP — Radiation Protection Program
• D — Danger Area
• OAG — Official Airline Guide
• HKALPA — Hong Kong Air Line Pilots Association
• IA — Inspection Authorization
• ISLS — Interrogation Side Lobe Suppression
• LIL — Light Intensity Low
• NEXRAD — Next Generation Weather Radar
• VCY — Vicinity
• 8.33 PMC — 8.33 Programme Management Cell
• AMSS — Aeronautical Mobile Satellite System
• F18 — Field 18 of Flight Plan
• MHA — Minimum Holding Altitude
• NPDU — Network Protocol Data Unit

• EATCHIP — European Air Traffic Control Harmonisation and Integration Programme
• RTQC — Real Time Quality Control
• EMAS — Engineered Materials Arresting System
• ALPA-A — Air Line Pilots Association of Armenia
• AFP — Area Forecast Panel
• ATCA — Air Traffic Control Association, Inc.
• EICAS — Engine Indicating Crew Alerting System
• SSAP SELECTOR — Session Service Selector
• AGA — Aerodromes, Air Routes and Ground Aids
• FCU — Flight Control Unit
• ADA — Air Defense Area
• AIPA — Aeronautical Information Production Application
• SEMP — Software Engineering Management Plan
• APN — apron
• CNTRLN — Centerline
• AA — AMERICAN AIRLINE
• DACT — Dissimilar Air Combat Training
• VBX — Visual Basic Extensions
• CAR — Civil Aviation Regulations
• LRCO — Limited Remote Communications Outlet
• XNG — Crossing
• HBS — Hotline Back-up System
• MORS — Mandatory Occurrence Reporting Scheme
• ATM — Air Transportation Management
• NADIN — National Airspace Data Interchange Network
• FLCH — Flight Level Change
• FFAC — From Facility
• EAD — Earliest Arrival Date
• ARTCC — Air Route Traffic Control Centre
• JST — Joy Stick
• MAX CRZ — Maximum Engine Thrust for Two-Engine Cruise
• PCB&T — Personnel Compensation Benefits and Travel
• LFP — Low Pass Filter
• HST — Hypersonic Transport
• ERIP — EAD Remote Interface Package
• AUTONAV — Auto-Navigation
• CASOR — Civil Area Services Operations Room
• SHL — Saville and Holdsworth Ltd
• ACM — Acceptable Means of Compliance
• BORG — Basic Operational Requirements Group
• ALPA-INT — Air Line Pilots Association - International
• AFI — Africa-Indian Ocean Region
• CLKWS — Clockwise
• D/L — Data Link
• SITA — Société Internationale Télécommunique Aéronautique
• TAU — Range / Range rate
• C-ATSU — Current Air Traffic Services Unit
• ITIRS — International Terrestrial Reference System
• CASTLE — Consolidated Automated System for Time and Labor Entry
• AIM — Aeronautical Information Management

• NOPT — No Procedure Turn Required
• ETX — End of Transmission
• APGSL — Air Line Pilots Guild of Sri Lanka
• CAMI — Civil Aerospace Medical Institute
• FPLMTS — Future Public Land Mobile Telecommunications System
• AEP — FAA Office of Aviation Policy Planning and Environment
• INSTRAT — Institutional Strategy for Air Traffic Management
• OGP — Oil and Gas Producers Aviation Sub Committee
• AJF — Finance Services, Air Traffic Organization
• MCK — Maintenance Check
• DA — Descent Advisor
• AUW — All Up Weight
• AAFCE — Allied Air Forces Central Europe
• ALPA-K — Air Line Pilots Association of Korea
• PCGO — Part Cargo
• ABAFT — Toward the rear of the ship
• SFPL — System Flight Plan Processing
• IFSS — International Flight Service Station
• AJT — Terminal Service, Air Traffic Organization
• DMSH — Diminish
• FOR — Free On Rail
• ARINC 585 — Electronic Chronometer System
• AWO — All Weather Operations
• FMGS — Flight Management Guidance System
• NMB — National Mediation Board
• ARSC — Air Rescue Sub Centre
• ECPIC — Electronic Capital Planning Investment Control
• SHEL — Software, Hardware, Environment, Liveware
• AFM — Affirmative Fair Housing Marketing
• ARINC 541 — Airborne Magnetic Flight Data Recorder
• FPCP — Flight Path Control Point
• FRNG — Firing
• RTCM SC — Radio Technical Commission for Maritime Services Special Committee
• GRD — Geared
• OPX — Off-Premises Exchange
• AALPBH — Association of Airline Pilots in Bosnia & Herzegovina
• AAC — Aeronautical Administration Communication
• DP&P — Data Processing And Peripherals
• RCD — DCL Request Message
• AIDS — Airborne Integrated Data Systems
• FDE — Flight Data Entry
• ADSEL — Address Selective SSR System
• AFZ — Resource Management
• FREQ — Next Sector frequency
• APS — Airport Planning Standard
• HDWTS — Half Despatch Working Time Saved
• ASAS — Aviation Safety Analysis System
• AWSS — Automated Weather Sensor System
• RID — review item description
• VRS — Voice Response System

• ARN-2 (TABLE) — Radio Navigation Aids Associated with the Basic ATS Route Network Terminal Area and Instrument Approach Procedures
• FBO — fixed base operator
• EARS — En Route Analysis and Reporting System
• ARINC 7411P2 — Aviation Satellite Communication System: Part 2 - Satellite Design
• AVGAS — Aviation Gasoline
• FIAT — First Installed Article Test
• LAHSO — Land And Hold Short Operation
• ACLT — Actual Landing Time Calculated
• FQIS — Fuel Quantity Indicating System
• EURO RAN — European Regional Air Navigation
• CEECS — Central and Eastern Europe Countries
• MAT — Maintenance Access Terminal
• LAYCAN — Layday Cancelling Date
• IAFP — Individual ATC Flight Plan Proposal
• AIG — Accident Investigation & Prevention
• DEMO — Demonstration
• STANINE — Standard Nine Score
• AASR — Aging Aircraft Safety Rule
• SDS — Switched Data Service
• AFTN — Automated Fixed Telecommunications Network
• RX — Receiver
• DOM — Domestic
• EFF — Effective from
• ATCA — Air Traffic Controllers Association
• SLOP — Strategic Lateral Offset Procedure
• SAS — Scandinavian Airlines System
• NARG — Navigation Aids and Area Navigation Group
• LYCN — Layday Cancelling Date
• MALS — Medium-Intensity Approach Lighting System
• HELIOPS — Helicopter Operations Panel
• EATCHIP LO — EATCHIP Liaison Officer
• NTN — Network Terminal Number
• REACT — Rain Echo Attenuation Compensation Technique
• ADT — Air Data Tester
• ARINC 748 — Communications Management Unit
• SNDC — Subnetwork Dependent Convergence Function
• IM — Inner Marker
• ABET — Airspace Behavioral Engineering Technology
• AFTIL — Airway Facilities Tower Integration Laboratory
• ATCEUC — Air Traffic Controllers European Unions Coordination
• ADI — Automatic De-Ice and Inhibitor
• ALD — Airlift Division
• EVAS — Enhanced Vortex Advisory System
• POC — Point-of-Contact
• ATAC — Airspace Traffic Data Capture
• GFP — Government Furnished Property
• FWDD — Fresh Water Departure Draft
• MTCD — Medium Term Conflict Detection
• FREE OUT — Free of discharge costs to owners
• SSFDR — Solid-State Flight Data Recorder

• ADMA — Aviation Distributors and Manufactureres Association
• ESE — East-South-East
• AWOP — All Weather Operations Panel (ICAO)
• ALPA-S — Air Line Pilots Association - Singapore
• AOCI — Airport Operators Council International
• ASPP — Aeronautical Fixed Service Systems Planning for Data Interchange Panel
• AERA — Automated En Route Air
• FSF — Flight Safety Foundation
• AAATS — Australian Advanced Air Traffic Services
• FRM — Financial Resources Management Core Team
• DUAT — Direct User Access Terminal
• VCMIN — Active Minimum Control Speed
• ATCI — Airport ATC and Information systems
• AV — Avianca (Aerovias del Continente Americano) Colombian Airline
• AAL — Alaska Region
• FAST — Final Approach Spacing Tool
• COMCO — Command Communications Outlet
• FPPS — Federal Personnel Payroll System
• MTW — Mountain Waves
• QP — Quality Plan
• ATSC — Air Traffic Service Communications
• FPS — Flight Progress Strip
• MTRAQ — Multi track quality
• DARC — Direct Access Radar Channel
• CEATS — Central European Air Traffic Services
• MTOW — Maximum Take-off Weight
• DG — Directional Gyroscope
• LC — Local Control
• ACE — Central Region
• SRZ — Special Rules Zone
• EARTS — En Route Automated Radar Tracking System
• ARINC 307 — Aircraft Integrated Data System Wire Bundle Provisions
• AAMS — Aircraft Arrival Management System
• AIT — Automated Information Transfer
• ALPA-SA — Air Line Pilots Association - South Africa
• ACFS — Advanced Concepts Flight Simulator
• DFS — Detailed Functional Specification
• SSW — South-South-West
• C-ATSU — Controlling ATS Unit
• AI — Application Interface
• MOD — Memorandum of Decision
• ARN-1 (TABLE) — Basic ATS Route Network in the Lower and Upper Airspace
• CFDIU — Central Fault Display Interface Unit
• M/SEC — Metres per second
• CAAF — Civil Aviation Authority of Fiji
• GDE — Ground Delay Enhancements
• DCAA — Danish Civil Aviation Administration
• FDE-ICD — Flight Data Entry - Interface Control Document
• PC — Period of Charter
• OSA — Operational Safety Assessment

• CPI — Californian Psychological Inventory
• OFT — Outer Fix Time
• FERS — Facility and Equipment Reporting System
• ALRT — Alert
• AAFG — ATM Added Functionality Sub-Group
• RTQC/A — Real Time Quality Control / Assessment
• BUNKERS — Name given for vessels Fuel and Diesel Oil supplies
• SAI — Safety Attribute Inspection
• ISASI — International Society of Air Safety Investigators
• DDB — Dynamic Database Browser
• CVTS — Compressed Video Transmission Service
• TARA — Terminal Area RNAV Applications Task Force
• AJW — Technical Operation Services, Air Traffic Organization
• ORCAM — Originating Region Code Assignment Method
• BIMCO — The Baltic and International Maritime Council
• DOD MIL — Department of Defence - military
• EHEST — European Helicopter Safety Team
• 5-STRSSG — 5-States Route Structure Steering Group
• TDZ — Touchdown Zone
• FISC — Flight Information Services Communications
• PIREP — Pilot Report
• CENRAP — Center Radar ARTS Presentation
• 5-SRSWG — 5-States Route Structure Working Group
• PATCG — PHARE Advanced Tools Co-ordination Group
• ATCSCC — Air Traffic Control Systems Command Center
• ADL — Aeronautical Data-Link
• SFAR-38 — Special Federal Aviation Regulation 38
• COCESNA — Central American Corporation For Air Navigation Service
• IABA — International Association of Aircraft Brokers and Agents
• DIRF — Direction Finding
• AOI — Area of Operational Interest; TERPS Office (USAF)
• GES — Ground Earth Station
• C — Celcius
• MDA — McDonnell-Douglas Aerospace
• ATOMS — Air Traffic Operations Management System
• AOF — Allocation of Functions
• EATCHIP OCD — Operational Concept Document
• IRVR — Instrument Runway Visual Range
• AND — Associate Administrator for NAS Development
• CAMA — Civil Aviation Medical Association
• IAM — Institute of Aviation Medicine
• MVE — Move
• GEORGIAN ALPA — Georgian Air Line Pilots Association
• OMT — Onboard Maintenance Terminal
• ANSIR — Advanced Navigation System Inertial Reference
• CEF — Capacity Enhancement Function
• AEE — FAA Office of Environment and Energy
• BTC — Basic Training Course
• AIREP — Plain language form of Air Report
• TCAS — Traffic Alert and Collision Avoidance System

• HCS — Host Computer System
• HS-DTS — High Speed Data Transmission System
• ANSA — International Advisory Group Air Navigation Services
• D&D — Distress and Diversion
• CFL — Cleared Flight Level
• SECRA — Secondary Radar Data Only
• TOGA — Takeoff/Go-Around
• AP — Airport Plaza
• TAAATS — The Australian Advanced Air Traffic Services System
• FPFS — First Planned First Served
• LVE — Leave
• CPCS — Cabin Pressure Control System
• GF — Gulf Air Company - Bahrain
• DCS — Double Channel Simplex
• CRM — Crew Research Management
• DERA — Defense Evaluation and Research Agency
• P&H — Press and Hold
• FLOWSIM — Traffic Flow Planning Simulation
• ATCC — Air Traffic Control Centre
• JL — Japan Air Lines
• ALPA-E — Air Line Pilots Association of Ethiopia
• HIS — Horizontal Situation Indicator
• OGM — Objectives > Goals > Mission
• ALLA — Allied Long-Lines Agency
• ARNG — Arrange
• CMA — Central Monitoring Agency
• MALPA — Mauritius Air Line Pilots Association
• MIRACULIX — Multi Interface Radarformat Calculator and
• GADO — General Aviation District Office
• GDCA — General Directorate for Civil Aviation
• ALCM — Air Launched Cruise Missile
• AOIS — Aeronautical Operational Information System
• ARINC 741P4 — Aviation Satellite Communications System:Part 4 - Specification and Description Language
• FMU — Flow Management Unit
• GLONASS — Global Orbiting Navigation Satellite System, Russia
• ABM — Abeam
• IGA — International General Aviation
• ELS — Emergency Landing Strip
• FIS-B — Flight Information Service - Broadcast
• EPROM — Erasable-Programmable Read-Only-Memory
• TARE — Telegraphic Automatic Relay Equipment
• CES — Central and Eastern European States
• AFM — Aeroplane Flight Manual
• DATAC — Digital Autonomous Terminal Access Communication
• DFL — Daily Flight Log
• HID/NAS/LAN — Host Interface Device/National Airspace System/Local Area Network
• AJO — Chief Operating Officer, Air Traffic Organization
• HELI — Heliport
• FLAS — Flight Level Allocation System
• DASI — Digital Altimeter Setting Indicator

• EFP — Espaсa-France-Portugal Plan
• DLASD — Data Link Application and System Document
• LOE — Line Oriented Evaluation
• AFAS — Aircraft in the Future ATM System
• ASPM — Aviation System Performance Metrics
• PPL — Private Pilot License
• HDOT — Inertial Vertical Speed
• DFGS/C — Digital Flight Guidance System/Computer
• OTR — Oceanic Transition Route
• DFI — Direction Finding Indicator
• ACAC — Arab Civil Aviation Council
• FTC — Fast-Time Constant
• LRNAV — Long Range Navigation
• SMD — Storage Module Device
• IAF — Initial Approach Fixes
• SNR — Signal-to-Noise
• JAI — Joint Acceptance Inspection
• DE-TO PR — Derated Takeoff Engine Pressure Ratio
• RAPNET — Regional ATC Packet switched Network
• VPATH — Vertical Path
• LRRAP — Long Range Resource Allocation Plan
• CAEP — Committee on Aviation Environmental Protection
• DUATS — Direct User Access Terminal System
• ATSS — Airway Transportation Systems Specialist
• LB — Local Battery
• ARINC 751 — Gate-Aircraft Terminal Environment Link - Aircraft Side
• ASA — Airservices Australia
• ALTNLY — Alternately
• ARINC 592 — Airborne Passenger Tape Record
• TOD — Top of Descent
• FIN — Finnair Oyj, Finland
• HSPD — Homeland Security Presidential Directive
• DACS — Digital Aeronautical Chart Supplement
• PFL — Planned Flight Level
• FZL — Freezing Level
• APV — Approach with Vertical Guidance
• CGS — Centimeter-gram-second
• ACA — Austrian Cockpit Association
• CAEG — Computer-aided Engineering Graphics
• AZ — Aerodrome zone
• AFAST — Active Final Approach Spacing Tool
• CE — European Commission
• DR — Drifting (METAR descriptor)
• LCG — Load Classification Group
• VM(LO) — Minimum Maneuver Speed
• IANS — Institute of Air Navigation Services
• ANS/CR — Air Navigation Services of the Czech Republic
• ETN — Electronic Telecommunications Network
• DEP TC — Departure Tactical Controller
• BCC — Battery Charge Controller

• AAF — ATM Added Functions
• CMFO — Certificate Management Field Office
• CANSO — Civil Air Navigation Services Organisation
• Z — Equivalent to Greenwich Mean Time
• VH — Maximum Level-flight Speed with Continuous Power
• NRCS — National Radio Communications Systems
• EEC — Eurocontrol Experimental Centre
• GNDCK — Ground Check
• ANSEP — Air Navigation Services Economics Panel
• CLNP — Connection Less Network Protocol
• CCS7-NI — Communication Channel Signal-7 Network Interconnect
• AOC — Aeronautical Operation Control
• VAAC — Volcanic Ash Advisory Centre
• AS — Airspeed
• DYSIM — Dynamic Simulator
• IAS — Indicated Air Speed
• SFAR — Special Federal Aviation Regulation
• BAPA — Bangladesh Airline Pilots Association
• SNIR — Signal-to-noise ratio
• CTA — Controlled-Time of Arrival
• QTE — True Bearing
• EHA — European Helicopter Association
• WSFO — Weather Service Forecast Office
• FAL — Facilitation of International Air Transport
• FSCAP — Flight Safety Critical Aircraft Parts
• ITI — Interactive Terminal Interface
• CMU — Certificate Management Unit
• AEX — Automated Execution
• ATN — Aeronautical Telecommunications Network
• NTM F/T SIM — Nattenheim Fast Time Simulation
• VSP — Vertical Speed
• OGE — Operational Ground Equipment
• NORAC — No Radio Contact
• AQS — FAA Office of Quality, Integration and Executive Services
• QBI — Compulsory IFR flight
• ARINC 551 — Airborne Glide Slope Receiver - Mark 2
• PD — Profile Descent
• LCN — Local Communications Network
• GSB — Good Safe Berth
• E/O — Engine-Out
• DNSLP — Downslope
• C/M — Carrier-to Multi-Path Ratio
• EUROCONTROL — European Organisation for the Safety of Air Navigation
• ALPA-SL — Air Line Pilots Association of Slovenia
• BTL — Between layers
• ACS — airspace control system
• CLG — Calling Line
• PAA — Plot Accuracy Analysis
• DCAA — Dual Call, Automatic Answer Device
• DMRS — Database Management Reporting System

• NAT IMG — North Atlantic Implementation Management Group
• CAEE — Committee of Aircraft Engine Emissions
• BUL-ALPA — Bulgarian Air Line Pilots Association
• ADISP — Automated Data Interchange Systems Panel
• ANSO — Air Navigation Services Offices
• ATIC — Administrative and Technical Inspection Committee
• GEOREF — Geographical reference
• SSM — Sign Status Matrix
• AMDA — Airlines Medical Directors Association
• GDCE — Ground Data Circuit Terminating Equipment
• TI — Texas International
• TSG — Training Sub-Group
• N1 — Gas generator speed
• FSYS — Flight Service Station Equipment Systems
• LCGS — Low Cost Ground Surveillance Radar
• RLD — Rijks Luchtvaart Dienst
• ATTCS — Automatic Takeoff Thrust Control Systems
• ADTN — Administrative Data Transmission Network
• SRMDM — Safety Risk Management Memo
• WPX — Next waypoint on the flight plan
• MAA — maximum authorized IFR altitude
• ARINC 752 — TFTS Airborne Radio Sub-System
• CEAS — Class E Airspace
• GMU — GPS (Height) Monitoring Unit
• CEU — Central Executive Unit
• FISMA — Federal Information Security Management Act of 2002
• AFG — Advisory Financial Group
• NAV-1 — Radar Data System
• HFX — Holding Fix
• RDVS — Rapid Deployment Voice Switch
• ADM — Aeronautical Decision Making
• AWPG — Aviation Weather Products Generator
• CHI — Computer-Human Interface
• ARINC 569 — Heading and Altitude Sensor
• AMIDSHIPS — In or toward the centre of the ship
• RDR — Radar Departure Route
• ARU — Airspace Reservation Unit
• DPE — Designated Pilot Examiner
• CR(A)OC — Central Region (Air) Operations Centre
• EFC — Expect Further Clearance
• MB — Merchant Broker
• CTOL — Conventional Takeoff & Landing
• AOPG — Aerodrome Operations Planning Group
• AOPA — Aircraft Owner and Pilot Associations
• SAFI — Semi-Automatic Flight Inspection
• CARATS — Collaborative Actions for Renovation of Air Traffic Systems
• DP — Departure procedures
• AOCC — Atlantic Operations Control Center
• PHARE — Program for Harmonized ATC Research in Europe
• FPPS — Flight Plan Processing System

• IACS — INTERGRAPH Aeronautical Charting System
• RCLL — Runway Centre Line Lights
• ARINC 577 — Audible Warning System
• IUCM — IFPS Unit Configuration Manager
• AIRMET — Air Meteorological Information Report which may affect the safety of low-level aircraft operations
• NUA — Network User Addresses
• DEV — Deviation
• ARO — Air Traffic Service Reporting Office
• FPB — Flight Progress Board
• RSAP — Runway Safety Action Plan
• TBS — Telephone Back-up System
• NEXTGEN — Next Generation Air Transportation System
• ATFMU — Air Traffic Flow Management Unit
• IFL — Intermediate Flight Level
• AIR 4653 — Aerospace Information Report 4653
• IFATSEA — International Federation of Air Traffic Safety Electronic Associations
• PANS-OPS — Procedures for Air Navigational Services - Aircraft Operations
• DFTI — Distance-from-Touchdown Indicator
• IUAI — International Union of Aviation Insurers
• IMAWP — Initial Missed Approach Waypoint
• METAR — Meteorological Aerodrome Report
• RBDPE — Radar Beacon Data Processing Equipment
• VTOL — Vertical Take-Off and Landing aircraft
• STAC — Second Time Around Clutter
• NARACS — National Radio Communications System
• RLCE — Request Level Change En-route
• OE/AAA — Obstruction Evaluation/Airport Airspace Analysis
• IAIP — Integrated Aeronautical Information Package
• RTRD — Remote Tower Radar Display
• ANGB — Air National Guard Base
• COCESNA — Central American Corporation for Air Navigation Services
• OMIC — Operations Manager in Charge
• ADTI — Additional Technical Information
• MSAW — Minimum Safe Altitude Warning
• TKE — TrackAngle Error
• EFC — Expected Further Clearance
• VC — Design Cruising Speed
• IFP — Instrument Flight Procedures
• CAIRS — Cable Assignment Information Retrieval System
• LDB — Limited Data Block
• LHCP — Left Hand Circular Polarisation
• FP — Free Pratique
• CPMIS — Consolidated Personnel Management Information System
• FES — Fixed Earth Station
• DFDR — Digital Flight Data Recorder
• ARINC 597A — Enhanced ACARS Avionics
• ASRS — Aviation Safety Reporting System
• MTOM — Maximum Take-Off Mass
• FPZ — Flight Path Zone
• SAMS — special-use airspace management system

• IRT — Interrogation Repetition Time
• ARQ — Automatic error Correction
• CLB — Climb Detent of the Thrust Levers
• MAPT — Missed Approach Point
• ANMS — Automated Network Monitoring System
• IAR — Intersection of Air Routes
• ATAS — Airspace and Traffic Advisory Service
• GENOT — General Notice
• AEG-TFK — AEG-Telefunken
• CRNA — Centre Régional de la Navigation Aérienne
• ESEWD — East-Southeastward
• AOA — Aircraft Operating Agency
• CESA — Class E Surface Area
• QFU — Magnetic orientation or runway in use
• AAA — Airport Airspace Analysis
• CMU — Communications Management Unit
• ATAS — Air Traffic Advisory Service
• OPLAN — Operational Plan
• CFD — Change to Flight Data Message
• CRP — Co-ordinated Research Programme
• FPR — Flight Plan Route
• ARINC 59MA — Airborne Announcement Tape Reproducer
• LLC — Link Layer Control
• VSO — Stalling Speed in the Landing Configuration
• AJC — Communications Services, Air Traffic Organization
• MONA USER — Monitoring Aids User
• ADS-C — Automatic Data Surveillance Contract
• SUP/ACC — Supervisor Area Control Centre
• DAI — Direct Access Intercom
• DSUA — Dynamic Special - Use Airspace
• FMA — Flight Mode Annunciator
• CIT — Compressor Inlet Temperature
• REAL — Real time
• IAMP — Initial Approach Waypoint
• EDS — Enterprise Database System
• CUPS — Consolidated Uniform Payroll System
• ASIP — Aviation VHF-Very High Frequency- Packet Communication Simple Interface Protocol
• MTCDR — Medium-Term Conflict Detection and Resolution
• CAAC — Civil Aviation Authority of China
• LIS — Logistics and Inventory System
• BALPA — British Air Line Pilots Association
• DRCP — Data Reduction Computer Program
• NMCS — Network Monitoring and Control System
• ATIS — Aerodrome Terminal Information Service
• ESEC — En Route Broadband Secondary Radar
• FMG — Frequency Management Group
• ARST — Arresting specify aircraft arresting
• NDB — Non-directional radio beacon
• APEC — Aircraft Performance Evaluation & Certification
• FIRE — Fire Station

• SPAS — System Performance Analysis System
• WPL — Work Package Leaders
• TA — Traffic Advisory
• EFDP — European flight data processing(Eurocontrol)
• CMSA — Carrier Sense Multiple Access
• VFE — Flaps Extended Placard Speed
• VX — Speed for best angle of climb
• TEN-T — Trans- European Network - Transport
• ANM — ATFM Notification Message
• TARMAC — Taxi and Ramp Management and Control
• AWP — Arrival Waypoint
• FCM — Flight Schedule Monitor
• AIS-TF — AIS Training Task Force
• VWF — Video For Windows
• ACL — Air Traffic Control Clearance
• RPL — Repetitive Flight Plan
• POCC — Pacific Operations Control Center
• CASS — Corporate Aviation Safety Seminar
• CF — Change frequency to
• ASPA — Asociacian Sindical de Pilots Aviadores de Mexico
• RCLS — Runway Centerline Lighting System
• AES — Airborne Earth Station
• RDP — Radar Data Processor
• CAPP — Client Applications Section
• ASTA — Airport Surface Traffic Automation
• CDFA — Constant Descent Final Approach
• AFD — Airport Facility Directory
• CATCO — Chief ATC Operations
• MASPS — Minimum Aviation Systems Performance Standards
• FIP — Facility Improvement Program
• DSCN — Direct Speech Circuit Networks
• FDAMS — Flight Data Acquisition and Management System
• RCDSS — Radar Control and Display Subsystem
• IIE — Integrated Information Environment
• AEDT — Aviation Environmental Design Tool
• CSI — Criticality Safety Index
• IW — Inside Wiring
• IIS — Internal Information System
• CNS — Communication, Navigation and Surveillance Systems, Inc.
• SPAS — Safety Performance Analysis System
• SO — Southern Airways
• ARTS — Area Radar Training Squadron
• V1 — Take-Off Decision Speed
• PATWAS — Pilot's Automatic Telephone Weather Answering Service
• DISCR — Discrepancy
• DORA — Directorate Operational Research and Analysis
• SPACDAR — Specialist Panel on Automatic Conflict Detection and Resolution
• DMR — Data Modification Request
• AIRNET — Airport Network Simulation Model
• AIRSPACE — and Traffic Management

• ARINC 595 — Barometric Altitude Rate Computer
• EIRP — EffectiveIsotropic Radiated Power
• PNF — Pilot Not Flying (aviation)
• ISSM — Information Systems Security Manager
• D — Derated
• IFO — International Field Office
• AORTF — ATM Added Functionality Operational Requirements Task Force
• SOIWR — Simultaneous Operations on Intersecting Wet Runways
• AXX — One of the 9 Regional Offices
• ERM — En Route Spacing Program
• PQM — Project Quality Manager
• BRKG — Braking
• FDC — Flight Data Company
• USAF — U.S. Air Force
• RTA — Required Time of Arrival
• FDMAS — Flight Data Management Automated System
• AFC — Airport Facilities Control
• WTC — Wake Turbulence Category
• SNA — Sindicato Nacional dos Aeronautas
• OMEGA — Very Low Radio Navigation System
• IRMC — Integrated Risk Management Checklist
• RFL — Requested Flight Level
• NRZI — Non Return to Zero Inverted magnetic tape bpi
• GO — Gas Oil
• NIMS — NAS Infrastructure Management System
• STCA — Short Term Conflict Alert
• NAPA — Namibia Air Line Pilots Association
• AIRPAC — Advisor for the Intelligent Resolution of Predicted Aircraft
• DCCU — Data Communications Control Unit
• ER TC — En-Route Tactical Controller
• AOPTF — Aerodrome Operations Task Force
• APDSG — Airspace Planning & Development Sub-Group
• SOIR — Simultaneous Operations on Intersecting Runways
• ECASS — European Committee on Aircrew Scheduling and Safety
• MPL — Multi-crew Pilot Licence
• AMIC — Area Manager in Charge
• EFL — Entry Flight Level
• ONL — On-Line Plc (London Stock Exchange [LSE])
• NDB — Non-Directional Beacon
• IGCN — Independent Ground Communications Network
• VTT — Vertical Threshold Test
• CCIF — Comit? Consultatif International Des Communications T?l?phoniques ? Grande Distance (French For International Telephone Consultative Committee
• AREA — Automated En Route Air Traffic Control
• PCPS — Purchase Card Processing System
• RCP — Radio Control Panel
• GDLP — Ground Data Link Processor
• FAAAC — FAA Aeronautical Center
• DAIR — Direct Altitude and Identity Readout
• APLRIM — Association des Pilotes de Lignes de Mauritanie
• ARQ — Automatic Response to Query

• ALPA — As the Air Line Pilots Association
• MMPI — Minnesota Multi-phasic Personality Inventory
• ATK — Air Traffic Controller Acknowledgement
• TOPL — Take Off Performance Limits
• MCC — Maintenance Control Center
• FDSU — Flight Data Storage Unit
• IFPD — Individual Flight Plan Data
• FFM — Free Flight Mode
• OPADD — Operating Procedures for AIS Dynamic Data
• LVB — Luchtverkeersbeveiliging
• HSM — High Speed Modem
• VSAT — Very Small Aperture Satellite Terminal
• ITU-T — International Telecommunications Union
• NUDET — Nuclear Detection
• FPD — Flight Plan Database
• WMSC — Weather Message Switching Center
• DRDF — Digital Readout Direction Finder
• ARSA — Airport Radar Serve Area
• HFDL — High Frequency Data Link
• DEDS — Data Entry and Display System
• HEMS — Helicopter Emergency Medical Services
• NSDU — Network Service Data Unit
• CAM — Conflict Alert Message
• NASP — National Airspace System Plan
• LAA — Local Airport Advisory
• DFIS — Data Link Flight Information Service
• CMS — Common Modular Simulator
• TMG — Tourig Motor Glider
• PWI — Proximity Warning Indicator
• SNET — Safety Nets
• ADSP — ADS Processor
• MTWA — Maximum Takeoff Weight Authorized
• CTO — Calculated Time Over
• RMM — Remote Maintenance Monitoring
• RPR — Real Property Report
• YSAS — Yaw Stability Augmentation System
• GNSSP — Global Navigation Satellite System Panel
• ATFMP — Air Traffic Flow Management Position
• FPI — Fluorescent Penetrate Inspection
• MOA — Memorandum of Understanding
• AOAS — Advanced Oceanic Automation System
• IFG-NME WG — Implementation Facilitation Group of the National Management Experts Working Group
• FPM — Flight Path Monitor
• ERAD — En Route Broadband Radar
• CEATS LSG — Central European Air Traffic Services Legal Sub Group
• ESCAT — Emergency Security Control of Air Traffic
• ACE — Allied Command Europe's
• ADIS — Automatic dependent surveillance and Data Link Interim System
• EHD — Danger Area
• ACAS — Airborne Collision and Avoidance System

• IFEA — In-Flight Emergency Assistance
• SFOR — UN Stabilisation Force (in Bosnia And Herzegovina)
• AWAS — Automated Weather Advisory Station
• CL — Cost Index
• TACH — Tachometer
• BEAM — the greatest width of a ship
• AWOS — Automatic Weather Observing System
• EATMS — European Air Traffic Management System
• SUP. PRACT. — Supervised Practices
• FDMD — Flight Data Management and Distribution
• GAT — General Air Traffic
• PIREPS — electronic pilot reports
• IVRS — interim voice response system
• CPDLC — Controller Pilot Datalink Communications
• SBAS — Space Based Augmentation System
• HAC — Hughes Aircraft Company
• BIP — Backup Interface Processor
• GFM — Government Furnished Materials
• LOS — Line-Oriented Simulation
• IFPP — Instrument Flight Procedures Panel
• TAWS — terrain awareness and warning system
• IAC — Integrated Avionics Computer
• GRADE — Graphical Airspace Design Environment
• MOGAS — Motor Gasoline
• APATSI — Airport / Air Traffic Systems Interface
• AIMS — Aircraft Information Management System
• VLS — Lowest Selectable Airspeed
• AAM — Office of Aerospace Medicine
• ALPA — Asociacion de Pilotos de Lineas Aereas
• RE — Resident Engineer
• D/D — Drift Down
• FOMS — Flight Operations Management System
• HERA — Human Error in ATM
• DER — Departure End of the Runway
• AOCP — Airborne Operational Computer Programme
• IASA — International Air Safety Association
• ESCO — Executive Support and Coordination Office
• CEAC — Committee of European Airspace Co-ordination
• BART — Billing Analysis Reporting Tool
• DSG — Data Services Group
• FCLT — Freeze Calculated Landing Time
• FSL — Full Stop Landing
• FIO — Flight Inspection Office
• GICB — Ground Initiated Comm B Protocol
• DVRS — Digital Voice Recorder System
• IAL — Instrument Approach and Landing
• AFMT — Airway Facilities Management Team
• GENOFIC — General North Sea Flight Information Centre
• FOG — For Our Guidance
• DDC — Data Display Console

• ASBA — American Shipbrokers Association
• CAL — Computer Aided Learning
• VCS — Voice Communications Systems
• ACSEP — Aircraft Certification Systems Evaluation Program
• ACTF — Aeronautical Charting Task Force
• STDMA — Self-organising Time Division Multiple Access
• CVFR — Controlled Visual Flight Rules
• IFPL — Individual Flight Plan Message
• LIH — Light Intensity High
• AGE — IFALPA Aerodrome & Ground Environment Committee
• ATCS — Advanced Train Control Systems
• OM — Outer Marker (ILS)
• AENA — Spanish Airport and Air navigation Administration
• CAAFI — Commercial Aviation Alternative Fuels Initiative
• DOVE — DSR Oceanic VSCS En Route Implementation Working Group
• IPSE — Integrated Programming Support Environment
• U/L — Upper / Lower
• ELR — Extra Long Range
• FILTIM — Date and Time Stamp of original Message
• PFLEXT — Probability of Failure Localisation, external
• CODA — Central Office of Delay Analysis
• NEM — Noise Exposure Map
• MRVA — Minimum Radar Vector Altitude
• ARINC 406A — Airborne Electronic Equipment
• ELNGT — Elongate
• CFR — Crash Fire Resque
• IAAE — International Association of Airport Executives
• DTW — Dual Tandem Wheels
• SANE — Skill Acquisition Network
• LFR — Low-frequency Radio Range
• CCAA — Chinese Civil Aviation Association
• AVON — AUTOVON Service
• OAMP — Off-line Aircraft Management Program
• ICET — IATA Capacity Enhancement Team
• EFPM — Extended Flight Plan Message
• LDAH — Landing Distance Available Helicopter
• ATA — Airport Traffic Area
• HIRS — High-resolution Infrared Sounder
• MVA — Minimum Vectoring Altitude
• FDA — Flight Data Analysis
• TDM — Track Definition Message
• GNLU — GNSS Navigation and Landing Unit
• ALPL — Association Luxembourgeoise des Pilotes de Ligne
• ACDAC — Asociacion Colombiana de Aviadores Civiles
• EWA — Error Warning Area
• IAP — Instrument Approach Procedures
• ADSIM — Airfield Delay Simulation Model
• AECG — ACAS Evaluation and Co-ordination Group
• FPP — Flight Plan Processing
• AASC — Airport Authorities Steering Committee

• ARQ — Automatic Request Repeat
• AWX — All Weather Fighter
• FO(IFO) — Fuel Oil/Intermediate FO
• RMU — Radio Management Unit
• RATCF — Radar Air Traffic Control Facility
• AFS — Automatic Flight System
• ALPA — Airlines Pilots Association
• DMSTN — Demonstration
• NAT CMA — North Atlantic Region Central Monitoring Agency
• ASIAS — Aviation Safety Information Analysis and Sharing
• ATCS — Air Traffic Control Service
• BROKERAGE — Percentage of freight payable to broker
• EOPF — Electronic Official Personnel File
• SUPSIS — Supervisor
• HDF — High frequency direction-finding station
• APATSI — Airport/air traffic system interface
• NMAC — Near Mid-Air Collision
• DLH — Deutsche Lufthansa
• GRAF — Ground Replay and Analysis Facility
• AITSC — Administrative IT Steering Committee
• NB — NorthBound
• PTOT — Provisional Take-Off Time
• OEP — Operational Evolution Plan
• CESAR — Course Evaluation Sheets Analysis and Reporting
• NAILS — National Airspace Integrated Logistics Support
• TORA — Take-Off Run Available
• ATCS — Air Traffic Control Specialist
• HCP — Hard Copy Printer
• ATCCC — Air Traffic Control Command Centre
• AWIR — Automatically generated What-If Re-routing
• HDQ — FAA Headquarters
• P — Procedure-Required Tuned NAVAID
• FMS — Flight management system
• IKBS — Intelligent Knowledge Based System
• CIWS — CORRIDOR INTEGRATED WEATHER SYSTEM
• VCR — Visual Control Room
• MADAP — Maastricht Automatic Data Processing and Display System
• DE-TO NL — Derated Takeoff Engine Fan Speed
• SCAA — Swedish Civil Aviation Administration
• LEN — Lenght
• EUR — Region European Region
• DOI — Department Of Industry
• MS-DTS — Medium Speed-Data Transmission System
• RASP — Regional Airport System Plan
• NEAN — North European ADS-B Network
• IAASM — International Academy of Aviation and Space Medicine
• CFWP — Central Flow Weather Processor
• QRA — Who Are You
• ODID — Operational Display and Input Development
• E-MSAW — En Route Automated Minimum Safe Altitude Warning

• RCDS — Radio Channel Distribution and Switching
• IFATCA — International Federation of Air Traffic Controllers' Associations
• EATM — European Air Traffic Management Programme
• ATARS — Automatic Traffic Avoidance and Resolution System
• CDRA — Cooperative Research and Development Agreement
• CSER — Contractor Site Engineering Report
• ATCBI — Maintenance of Air Traffic Control Beacon Indicator
• DERD-X — Display of Extracted Radar Data - Extention
• EU-FCL — EASA Flight Crew Licensing
• PHL — Preliminary Hazard List
• PPR — Prior Permission Required
• CLSD — Closed
• DEPA — Departure Airfield
• GAAA — General Aviation Activity and Avionics
• NASPAC — National Airspace System Performance Analysis Capability
• ARR — Arrival
• DDU — Display Drive Unit
• ASDE — Area Surveillance Detection Equipment
• ECAM — Electronic Centralised Aircraft Monitoring
• BRKHIC — Breaks in Higher Overcast
• ADO — IFALPA Aircraft Design & Operation Committee
• HLDC — High Level Data Link Control
• CATCAS — Copenhagen Air Traffic Control Automated System
• EFS — Electronic Flight Strip
• DVOR — Doppler Very High Frequency Omni Directional Range
• RPZ — Runway Protection Zone
• AWPA — Australian Women Pilots' Association
• CSS — Central Site System
• CATSIM — CAA Air Traffic Simulator
• CAI — Contractor-Acceptance Inspection
• ANPP — Air Navigation Plan Publication
• AGATE — Advanced General Aviation Transport Experiments (NASA)
• BASOP — Military Base Operations
• AISAS — Aeronautical Information Services Automated System
• IFFN — Identification Friend, Foe or Neutral
• MBPS — Mega Bits per second
• IAPA — Instrument Approach Procedures Automation
• ILSP — Integrated Logistic Support Program
• AWIS — Airport Weather Information
• AWY — Airway
• WXR — Weather Radar
• CTAM — Climb to and Maintain
• RMMC — Remote Maintenance Monitoring and Control
• IFPA — Instrument Flight Procedures Automation Program
• SAGA — System Safety Approach for General Aviation
• RAC — Rules of the Air and Air Traffic Services
• AFCNF — Air Force Central NOTAM Facility
• TWT — Travelling Wave Tube
• NCW — Non Conformance Warning
• LCD — Liquid Cristal Display

• MCSG — Military Committee Staff Group
• LFC — Air Defence Centre
• SASS-C — Surveillance Analysis Support System - Centre
• NOF — NOTAM Office
• KDS — Keyboard Display System
• CLT — Calculated Landing Time
• VAQ — VHF Avionics Qualification
• ROD — Record Of Decision
• ACFO — Aircraft Certification Field Office
• ARTAS TF — ARTAS Task Force
• DEWIZ — Distance Early Warning Identification Zone
• ALA — Alighting Area
• ACDMD — Air Collaborative Decision Making Demonstrator
• PND — Primary Navigation Display (aviation)
• CDR — Coded Departure Routes
• RCL — Runway Centreline Lighting
• IRCAS — Intranet Radio Coverage Analysis System
• NATINAD(S) — NATO Europe Integrated Air Defence
• ECVFP — Expanded Charted Visual Flight Procedures
• ARTEMIS — An ESA experimental telecommunications
• DEG — Data Environment Generator
• CDU — Control and Display Unit
• ARITRM — Assessment of the Radiological Impact from the Transport of Radioactive Materials
• FIO — Flight Information Office
• AVPAC — aviation VHF packet communications
• NIST — National Institute of Standards and Technologies
• PARI — Precursor, Action, Result, Interpretation
• ESERN — East-Southeastern
• NAT ATMG — North Atlantic Air Traffic Management
• TOS — Traffic Orientation Scheme
• IDAT — Interfacility Data
• ART — Analysis and Replay Tool
• CPL — Commercial Pilots License
• WX DEF — Weather Deviation
• ATNP — Aeronautical Telecommunications Network Panel
• AM — AeroMexico
• DLR — German Aerospace Research Establishment
• SIGMET — Significant Meteorological Information
• GNAS — General National Airspace System
• DGRS — Dangerous Goods Regulations
• ISAD — ICAO's Incorporating Security into Aircraft Design Working Group
• AL — Allegheny
• IGP — Ionospheric Grid Points
• ATFMC — Air Traffic Flow Management Communications
• HUGS — Head-Up Guidance Systems
• LDT — Logistic Delay Time
• SSDD — Sub System Design Document
• IEPR — Integrated Engine Pressure Ratio
• SS — Sunset
• PSC — Program Support Center (US DHHS)

• ISO — International Standards Organisation
• ASC — Aviation Safety Council
• AOWIR — Aircraft Operator What-If Re-routing
• PPIMS — Personal Property Information Management System
• EDDA — Environmental Due Diligence Audit
• PNGAPA — Papua New Guinea Air Pilots Association
• VSTOL — Vertical or Short Takeoff and Landing
• BRT — Brightness
• NCD — No Computed Data
• HATR — Hazardous Air Traffic Report
• ARINC 533A — Airborne HF SSB/AM System
• CRAFS — Civilian Request for Airspace and Flight Data System
• GFDI — GNSS Fault Detection and Isolation
• WSPD — Wind Speed
• FIC — Flight Information Centre
• RPC — Restoration Priority Code
• GOMS — Goals, Operators, Methods, Selection model
• CRO-ALPA — Croatian Air Line Pilots Association
• AISU — Aeronautical Information Service Unit
• AAM — Airbus Asset Management
• AQAFO — Aeronautical Quality Assurance Field Office
• PRQ — Pilot Request
• AFSFU — AFS Field Unit
• LAX — Identifier for Los Angeles
• ASPLAB — Asociacion Sindical de Pilotos del Lloyd Aereo (Bolivia)
• AAG — AIS Automation Group
• CMCSG — Civil and Military Co-ordination Sub-Group
• REGIS — Regional Information System
• TPA — Tanzania Pilots Association
• I/A — Incident Analysis
• USOAP — Universal Safety Oversight Audit Program
• SAVES — Strategic Sourcing for the Acquisition of Various Equipment and Supplies
• WINDMG — Wind Magnitude
• AAA — Asian Airliners Association
• ALO — Aviation Logistics Organization
• ARTES-9 — Advanced Research in Telecommunication
• ASECNA — Agence pour la Securité de la Navigation en Afrique et à Madagascar
• ACG — Advanced Concept Group
• RTHL — Runway Treshold Light
• BDAT — Digitized Beacon Data
• ALR — IFALPA's Airport Liaison Representative Program
• LRR — Long Range Radar or Low Cost Radar
• AISS — Aeronautical Information Server System
• CAAS — Certification of Aeroplane Automatic Systems
• MSRT — Mean Services Restoration Time
• MACS — Multiple Access Communications System (Netherlands & FRG)
• SBU — Service Business Unit
• ASD — Air Situation Display
• LM/MS — Low/Medium Frequency
• FHA — Functional Hazard Assessment

• JPDO — Joint Planning and Development Office's
• SIR — Screening Information Request
• JIT — Joint Implementation Team
• AMC — Air Traffic Control Microphone Check
• RAAS — Runway Aural Awareness System
• FCM — Flight Confirmation Message
• RRCS — Remote Radio Control System
• ACC-TC — ACC Tactical Controller
• VSA — By Visible reference to the ground
• RIIEP — Runway Incursion Information Evaluation Program
• UAC — Upper Area Control
• PRP — Pulse Repetition Period
• ARASCNAC — Air traffic services Routes for Aircraft with Self-contained Navigational Capabilities
• RTFM — Regulated Tactical Flight Model
• GIB — Global Navigation Satellite System Integrity Broadcast
• RAT — Risk Assessment Team
• SR&O — System Requirements and Objectives
• CAP — Study Group on Continuing Airworthiness Problems
• BAD — Budget Analysis Database
• AAT — Associate Administrator for Air Traffic
• CDTS — Console Detailed Technical Specification
• SSPA — Solid State Phased Array
• ASP — Arrival Sequencing Program
• FRA — Flap Retraction Altitude
• AISC — Aeronautical Industry Service Communication
• DLAP — Data Link Applications Processor
• AUTOB — Automatic Weather Reporting System
• AJE — En Route & Oceanic Service, Air Traffic Organization
• ETOT — Estimated Take Off-Time
• DEI — Directorate EATCHIP Implementation
• ACIPLA — Asociacian Civil de Pilotos de Lineas Aereas
• FITS — FAA/Industry Training Standards
• MCDU — Multipurpose Control Display Unit
• CRMCS — Central RADNET Monitoring and Control System
• BECA — Belgium Cockpit Association
• EIM — Enosis Iptamenon Michanikon
• MMPI — Minnesota Multiphase Personality Inventory
• DAC — Direction Aviation Civile
• RLSM — Reduced Lateral Separation Minimum
• EFR — Extended Flight Rules
• PROSIT — Problem Situation
• VDL — Very High Frequency Data Link
• ACO — Airspace Co-ordination Order
• OH — Operational Handbook
• EQUATOR — Environment for Qualitative Temporal Reasoning
• FMPG — Air Traffic Flow Management Planning Group
• APP — Approach Control
• IPG — Integration Project Group
• RCO — Remote Communications Outlet
• HDBK — Handbook

• SBT — Scenario-Based Training
• IFD — Initial Functional Description
• DED — Directorate of European Air Traffic Control Harmonisation and Integration Programme Development
• RGS — Remote Ground Station
• MEB — Main Earthing Bar
• BASIC — Basic Contract Observing Station
• ANC — Alternate Network Connectivity
• IANC — International Airline Navigators Council
• X.25 — Packet Switched Data Network
• IAR — Investment Analysis Report
• AUTODIN — DoD Automatic Digital Network
• MECACON — Middle East Civil Aviation Conference
• ALCC — Airlift Central Co-ordination Centre
• HIPERLAN — High Performance Local Area Network
• TYP — Aircraft Type
• EPRT — External Processing Response Time
• RFF — Rescue and Fire Fighting
• EGERIA — Engineering Group for European Integration ATC
• ADSIA — Allied Data Systems Interoperability Agency
• MBR — Mittel-Bereich radar
• FRONT — Frontispiece
• CFEP — Communications Front End Processor
• CAOFA — Co-ordination of Air Operations in the Forward Area
• EFL — Estimated Flight Level
• G/S — glideslope
• GMCC — General National Airspace System Maintenance Control Center
• BUEC — Back-up Emergency Communications
• ARINC 569 — Airborne Distance Measuring Equipment
• HV — Transavia Airlines CV
• ALR — Alerting message
• SUR — Surveillance
• LAU — Local Approach Unit
• DAAIS — Danger Area Activity Information Service
• M/V — Motor Vessel
• IFPPS — Integrated Flight Plan Processing System
• EFPS — External Front Processing System
• WPP — Working Position Processor
• ADS-B — Automatic Data Surveillance Broadcast
• RMCS — Remote Monitoring and Control System
• MFJ — Modified Final Judgment
• OAW — Off-Airway Weather Station
• LFV — Luftfartsverket
• ANE — New England Region
• R1 — Minor Repairs
• ISB — Independent Sideband
• HAI — Helicopter Association International
• MMAC — Mike Monroney Aeronautical Center
• SNOMAC — Syndicat National des Officiers Mecaniciens de l'Aviation Civile
• ANSPS — Air Navigation Service Providers
• XY — Ryan Air

• EATMP — The European Air Traffic Management Programme
• RTP — Regional Transportation Plan
• CAUTRA — Automated Computer System for Air Traffic
• CMA — Context Management Application
• MDCRS — Metereological Data Collection and Reporting System
• GAR — Go-Around
• TOA — Terms Of Agreement
• IBP — International Boundary Point
• CFMU — Central Flow Management Unit
• JAC — Joint Airmiss Committee
• BWP — Budget and Work Programme Planning
• ASO — Southern Region
• PGP — Planning Grant Program
• OATS — Orbit and Attitude Tracking
• AJP — Operations Planning Services, Air Traffic Organization
• FLDS — Flight Loads Data System
• LAWRS — Limited Aviation Weather Reporting Station
• CMB — Combined
• CP — conflict probe
• IAC — International Advisory Committee
• ERD — End Routing Domain
• IMO — International Maritime Organisation (UN)
• TO NL — Takeoff Engine Fan Speed
• INTC — Intercept
• CAMI — Civil Aeromedical Institute
• SBGP — State Block Grant Program
• SMMC — System Maintenance Monitor Console
• ECA — Executive Controller Assistant
• ADTN2000 — Administrative Data Transmission Network 2000
• DGB — Dangerous Goods Board
• CMOS — Complementary Metal Oxid Semiconductor
• COSP — Connection-Oriented Session Protocol
• MDT — Maintenance Data Terminal
• MTAC — Multiple Time Around Clutter
• SAS — Scandinavian Airline Systems
• PZ 90 — Parameters of Earth 1990
• CMIP — Contract Management and Inspection Procedures
• DAFIS — Departmental Accounting and Financial Information System
• LWG — Licensing Work Group
• REA — Ready Message
• CZM — Conventional Zero Meridian
• ATCGRAM — Illustration in graph form of the main functional
• CAN PROJ. — Croatian Air Navigation Project
• CTSKLS — Catskills
• CPAR — Cockpit Personnel Association of Russia
• CSTA — Chief Scientist and Technical Advisor
• VOR — VHF OmniRange Navigatgion System
• SARP — Signal Automatic Radar Processing
• UVA — Utility Value Analysis
• APB — APATSI Project Board

• EASS — European Aviation Safety Seminar
• ARSA — Airport Service Radar Area
• IAS — Indicated AirSpeed
• EACG — European ATFM Consultation Group
• EARTS — Enroute Automated Radar Tracking System
• MU — Management Unit
• FGS/C — Flight Guidance System/Computer
• ACN — Airspace Co-ordination Notification
• NRF — NATS Research Facility
• CALPA — China Airline Pilots Association
• ERSS — Eurocontrol Radar Surveillance Standard
• EFPD — Extended Flight Plan Description
• HASA — Helicopter Association of Southern Africa
• SVRWX — Severe Weather
• AMOSA — Association of Aviation Maintenance Organisations of Southern Africa
• CFCS — Central Flow Control Service
• MATSE — Meeting on the Air Traffic System in Europe
• AOU — Aircraft Operator Unit
• VLOF — Lift-off Speed
• FALPA — Fiji Air Line Pilots Association
• HBN — Hazard Beacon
• MKR — Marker Radio Beacon
• MIW — Message in Window
• ATR — Air Traffic Requirements
• NBAA — National Business Aircraft Association
• ETMS — Enhanced Traffic management Systems
• RPR — Re-Routing Proposal Message
• IІSLS — Improved Interrogation Side Lobe Suppression
• ATV — Associazione Tecnici di Volo Aviazione Civile
• KVDT — Keyboard Video Display Terminal
• AAA — Aesean Airline Association
• HTZ — Helicopter Traffic Zone
• STVAC — Sindicato dos Tecnicos de Voo da Aviacao Civil
• SATS — Simulator System for Air Traffic Services
• RCE — Radio Control Equipment
• MASS — Maintenance Automation System Software
• SFMC — Sickness Fund Management Committee
• DASR — Digital Airport Surveillance Radar
• AIREP — Air-Report
• HID — Host Interface Display
• MLS — Microwave Landing Systems
• GGCS — Ground/Ground Communication System
• FEAST — First European ATCO Selection Test Package
• ANT — Airspace and Navigation Team
• ATMG — Airspace and Traffic Management Group
• ARLO — Air Liaison Officer
• AAP — IFALPA Accident Analysis & Prevention Committee
• SIE — Standard Interface Equipment
• DPDG — Diplomatic and Protocol Drafting Group
• DR — Dead Reckoning Navigation

• AFSOU — AFS Field Office Unit
• SELF — Simplified Short Approach Lighting System With Sequenced Flashing Lights
• MBT — Maneuvers Based Training
• CMMC — Common Maintenance Monitoring and Control
• CNACC — Common National Area Control Centre
• FRC — Request Full Route Clearance
• AIPN — Appointing authority
• ROT — Runway Occupancy Time
• FAIRS — Federal Aircraft Management Information System
• SBS — Surveillance Broadcast Services
• FDMA — Frequency Division Multiplex Access
• FSTS — Federal Secure Telephone Service
• V/M — Volts-per-meter
• ERFA — Conference on the Economics of Route Air
• RWP — Real-Time Weather Processor
• RSA — Runway Safety Area
• RCCC — Regional Communications Control Center
• ATFR — Air Traffic Flow Regulator
• COBALT — Common Objective Alignment Team
• NADIN II — National Airspace Data Interchange Network II
• AWTT — Aviation Weather Technology Transfer
• EAA — European Aviation Agency
• MCDU — Multifunction Control Display Unit
• M/T — Medium-Term
• AID — Airport Information Desk
• EAT — Expected Approach Time
• DSP — Departure Sequencing Program
• MTA — Military Training Area
• RCAT — Route Catalogue
• DNAS — ECAC Directors of Air Navigation
• ALPA-M — Airline Pilots Association - Malta
• R/T — Radio Telephonic Transmission
• MTR — Military Training Route
• ATFC — Air Traffic Flow Controller
• U/S — Unservicealble
• CPU — Core Processing Unit
• CAPSIN — CAA Packet Switched Integrated Network
• MAP — Missed APproach
• IPMS — IT Program Management System
• OMD — Operational Management Domain
• OATS — Office Automation Technology Services
• GDM — Graphical Information Category Dynamic Maps
• FIRPS — Flight Inspection Reports Processing System
• TT — Total Temperature
• SATCNS WG — Satellite CNS Work Group
• RSAT — Runway Safety Action Team
• TASC — The Analytical Science Corporation
• ICW — Intercoastal Waterway
• CPCS — Certified Professional Controllers
• EHSAT — European Helicopter Safety Analysis Team

• CARAT — Center for Aviation Research and Aerospace Technology
• DIR/INTC — Direct Intercept
• FO — Free Out
• FDPD — Flight Data Processing and Distribution
• SEAC — Service d'Etat de l'Aviation Civile
• FDDI — Fiberoptical Digital Data Interchange
• PROG — Progress Page on MCDU
• MUAC — Military Upper Area Control
• FI/T — Flight Inspection Tempray
• LDR — Labor Distribution Reporting
• DDA — Dedicated Digital Access
• SAGSTRAM — Standing Advisory Group on the Safe Transport of Radioactive Material
• NSE — Navigation System Error
• PCATD — Personal Computer-Based Aviation Training Device
• ALSIP — Approach Lighting System Improvement Plan
• AFER — Aircraft Fuel Expense Reconciliation System
• IOCS — Interim Oceanic Control System
• TDH — Training Development and Harmonisation
• RNC — Required Navigation Capability
• FWCS — Flight Watch Control Station
• PAD — Packet Assembler Disassembler
• TTR — Target Tracking Radars
• ATAFF — Air Traffic Arbitrated Free Flight
• MIDAS — Man-Machine Integration Design and Analysis System
• CMIS — Certificate Management Information System
• AEROSAT — Aeronautical Satellite Council
• CDD — Corporate Data Dictionary
• AO — Airlines Operator
• ARCTR — Aeronautical Center
• DSR — Display System Replacement
• AW/P — Active Way Point
• OFL — Off-Line
• WSR — Wet Snow on Runway
• ZNY — New York Air Route Traffic Control Center
• FOTS — Fiber Optics Transmission System
• TSA — Temporary Segregated Area
• KECU — Thousands of European Currency Units
• VAR — Variation
• EIU — Electronic Interface Unit
• CHART — A map used by navigators
• NAT ADS — North Atlantic Automatic Dependent Surveillance
• RMPS — Radio Management Panels
• OHP — Over Head Projector
• FDR — Federal Data Registry
• VFOP — Visual Flight Rules Operations Panel
• ECON — Economy
• ACYC — Anticyclonic
• XPDR — Transponder
• MTCEP — Medium Term Capacity Enhancement Plan
• NZ-ALPA — New Zealand Air Line Pilots Association

• FCPU — Facility Central Processing Unit
• EWT — EATMS Working Team
• EPD — EATCHIP Planning Division
• ALMC — Airlift Movement Cell
• CDR — Cost Detail Report
• AT — at an altitude
• IPPC — Internet Pilot Planning Centre
• NTAP — Notice to Airman Publication
• PCA — Positive Control Airspace
• TTALPA — Trinidad & Tobago Airline Pilots' Association
• FDEP — Flight Data Entry and Printout
• EUR/TFG — European Traffic Forecasting Group
• NFP — NIMS Premier Facility
• TTA — Tactical Training Area
• AL — Approach Lights
• IFA — International Federation of Airworthiness
• JRC — Joint Resources Council
• FPF — Flight Plan Fallback
• MALSF — Medium-Intensuty Approach Light System with Sequenced Flashers
• IPDS — Instrument Procedure Development System
• BRNAV — Basic Air NAVair Traffic Control Unit
• WPN — First waypoint in the next sector
• HA — Hatch
• FRH — Fly Runway Heading
• AERA — Automated Enroute ATC
• VOT — VOR airborne equipment test facility
• TCL — Terminal Control Language
• NATCO — National Communications Switching Center
• ARTAS — Air Traffic Management Surveillance Tracker and
• HDB — Historical Data Base
• HCAP — High Capacity Carriers
• MCAS — Marine Corps Air Station
• EUROCAE — European Organisation for Civil Aviation Equipment
• SMAW — Safe Minimum Altitude Warning
• IMPL — Implementation Language
• ALB — Alternative Label
• MNC — Major NATO Command (NATO)
• HUMR — Human Resources
• IS-ES — Intermediate System - End System
• CLNS — Connection-Less Network Service
• PAMS — Published AIP Management Systerm
• RNMP — Replacement of the Nautical Mile Panel
• OFDPS — Offshore Flight Data Processing System
• TSE — Total System Error
• ACR — FAA Office of Civil Rights
• RDL — Radial
• NPA — Non Precision Approaches
• HIPS — Highly Interactive Problem Solver
• BA — Barometric Altitude
• PANS — Procedures for Air Navigational Services

• FPL — Filed Flight Plan
• RTC — Radio Transmission Control
• VFXR(X) — Flap Extension Speed
• FEATS — Future European Air Traffic System
• CRC — Control and Reporting Centre
• CAMPS — Computer Aided Message Processing System
• VSP — Variable System Parameter
• PFAST — Passive Final Approach Spacing Tool
• LRC — Long Range Cruise
• CRCO — Central Route Charges Office
• PRL — Pilot Request, Level
• TTW — Time To Waypoing
• ATG — Air Traffic Generator
• ERABIS — Route Invoicing System
• DABBS — DITCO Automated Bulletin Board System
• FNPT — Flight & Navigation Procedures Trainer
• ROSHM — Regional Occupational Safety and Health Manager
• JU — JAT – Yugoslavian Airlines
• C/D — Capacity demand ratio
• AFL — Assigned Flight Level
• AIRMET — Airmen's Meteorological Information
• AMPL — Association Marocaine de Pilots de Ligne
• EBC — Event Based Currency
• SET — Singe Engine Turbo-Prop
• ATFMO — Air Traffic Flow Management Organisation
• CNSP — Consolidated NOTAM System Processor
• LVA — Large Vertical Aperture
• CUP — Computer Utility Program
• FAMIS — Federal Air Marshal Information System
• CAWU — Civil Aviations Workers Union
• LINCS — Leased Interfacility NAS Communications System
• ADVO — Administrative Voice
• APANPIRG — Asia/Pacific Air Navigation Planning and Implementation Regional Group
• SATSA — Swedish ATS Academy
• AOCC — aircraft operator control centre
• ALIM — Altitude Limit
• ATMCP — Air Traffic Management Operational Concept Panel
• AOCU — aircraft operator control unit
• F/G — Foreground
• MFT — Meter Fix Crossing Time/Slot Time
• CALM — Computer Assisted Landing Management System
• FRP — Fares and Rates Panel
• CSM — Consultant Services Meeting
• AQM — Aircom Quality Performance
• AMOC — Alternative Methods of Compliance
• CASFO — Civil Aviation Security Office
• ALSEC — All Sectors
• FFI — Final Factory Inspection
• CFCF — Central Flow Control Facility
• SVN — Satellite Vehicle Number

• EHR — Restricted Area
• GTPAPC — Grupo Tecnico de Pilotos Aviadores Profesionales de Cuba
• TWDL — Two-Way DataLink
• ACRPWG — Aircraft Crash Recovery Procedures Working Group
• BTEC — Business and Technician Education Council
• CAPC — Civil Aviation Planning Committee
• SOP — Standard Operating Practice
• ICMS — Integrated Control and Monitor System
• SCP — Spacecraft Control Processors
• QDM — Magnetic zero wind heading
• VMAX — Basic Clean Aircraft Maximum CAS
• AIRCOM — Aircraft Communications
• CVSRF — Crew-Vehicle Simulation Research Facility
• KIAS — Knots Indicated Airspeed
• CCCH — Central Computer Complex Host
• DFL — Division Flight Level
• ATODN — AUTODIN Terminal
• V2 — Takeoff Climb Velocity
• IAPL — IFPS APL Message
• ATOP — Advanced Technologies and Oceanic Procedures
• JPEG — Joint Photographic Expert Group
• DSCS — Digital Satellite Compression Service
• DLSG — Data Link Sub Group
• BARS — Behaviour Anchored Rating Scales
• MLD — Military Liaison Division
• IFP — Integrated Flight Plan System
• ODIAC-TF — Operational Development of Initial A/g data Communications Task Force
• OPB — Outer Performance Boundary
• FFTF — Future Functions Task Force
• EFS — Extended Flight Store
• RVSM — Reduced Vertical Separation Minima
• AIM-FANS — Airbus Interoperable Modular FANS
• LISREL — Linear Structural Relations
• ACH — ATC Flight Plan Change
• PCN — Project Control Number
• AGC — FAA Office of the Chief Counsel
• FARM — Fielded Automation Requirements Management
• MOPS — Minimum Operational Performance Standards
• AFC — Air Traffic Control Frequency Change
• LACAC — Latin American Civil Aviation Commission
• FO — Flight Object
• TWI — Terminal Weather Information
• IAOPA — International Council of Aircraft Owner and Pilot Associations
• CLBR — Calibration
• AUS-ALPA — Australian Air Line Pilots Association
• CGAS — Coast Guard Air Station
• RTCA — Requirements and Technical Concepts for Aeronautics
• LRM — Line Replacement Modules
• TCWP — Threshold Crossing Way-point
• GNE — Gross Navigational Error

• PENS — Pan-European Fixed Network Service
• DME/P — Precise DME
• CCS — Cabin Communications System
• LOW — Last Open Water
• TLX — Task Load Index
• ODETE — On-Line Data Exchange Terminal
• MAPE — Mean Absolute Percentage Errors
• IWP — Intermediate Waypoint
• ACP — Accept Message
• MONA — Monitoring Aids
• EBAA — European Business Aviation Association
• FIB — Forward Information Base
• IALPA — Irish Air Line Pilots Association
• EGU — European Gliding Union
• WIST — Study Group on Low Level Wind Shear Turbulence
• ISPACG — Informal South Pacific Air Traffic Services Co-ordinating Group
• IAPA — International Airline Passengers Association
• VSSG — Vertical Separation Sub-Group
• SESMA — Special Event Search and Master Analysis
• TXWY — Taxy Way
• TMPA — Traffic Management Program Alerts
• GWDS — Graphic Weather Display System
• CARAT — Computer-Aided Route Allocation Tool
• IVT — Interactive Video Teletraining
• CEFA — Committee for Environmentally Friendly Aviation
• LIT-ALPA — Lithuanian Airline Pilots Association
• EPCM — Enhanced Planning Control Message
• HARS — High Altitude Route System
• FMIS — FTS2000 Management Information System
• GOMP — Gulf of Mexico Program
• FI/P — Flight Inspection Permanent
• MLE — Landing Gear Extended Placard Mach Number
• DGP — ICAO Dangerous Goods Panel
• RCL — Radio Communications Link
• SCAP — System Certification and Accreditation Package
• HFIAI — Human Factors in Incident and Accident Investigation
• MIDO — Manufacturing Inspection District Office
• TUI — Trade Unions International of Transport Workers
• EPC — Enhanced Planning and Coordination function
• URTF — User Requirements Task Force
• CEU-W — Central executive unit with Responsibility for Western Europe
• ATHR — Autothrust System
• DNL — Day-Night Equivalent Sound Level
• RCAG — Remote Communication Air/Ground Facility
• VTOL — Vertical Takeoff And Landing
• ICIP — Inital CIP
• QHN — Altimeter Sub-scale setting
• EVFR — Electronic Visual Flight Rules
• KAL — Korean Airlines
• DDM — Data Display Monitoring

• IARR — IFPS ARR Message – Individual Arrival Message
• ADI — Attitude Director lndicator
• TAP — Terminal Area Productivity
• ESCAPE — Eurocontrol Simulation Capability and Platform for Experimentation
• XM — External Master
• HCAA — Hellenic Civil Aviation Authority
• SEU — Software Engineering Unit
• OFIS — Operational Flight Information System
• ISSCA — Information Systems Security Certification Agent
• BASIS — British Airways Safety Information System
• TCOP — Transfer Coordination Point
• TDM — Total Delay in Minutes
• T/C — Top-of-Climb
• RAPCO — Radar Approach Control
• ANPAC — Associazione Nazionale Piloti Aviazione Commerciale
• FIG — Flight Inspection Group
• SRG — Safety Regulation Group
• DSB — Double Side Band
• FINO — Flight Inspection National Field Office
• SHACC — SHAPE Airspace Coordination Centre
• DEMETER — Distance Measuring Equipment Tracer
• GLONASS — Global Orbiting Navigational Satellite System
• AFDSS — Air Fix Data Sub Set
• CC — Construction coordinator
• SEP — Safety Equipment and Procedures
• EHF — Extremely High Frequencies
• ATI — Automatic Tracking Initiation
• EPS — Engineered Performance Standards
• ECAR — European Civil Aviation Requirement
• ARN-V2 — ATS Route Network - Version 2
• PATCO — Professional Air Traffic Controllers Association
• SBSR — Space Based Secondary Radar
• MTCA — Medium Term Conflict Alert
• FIRMR — Federal Information Resource Management Regulation
• VHF — Very-High Frequency
• GMD — General Meeting of Directors
• LDIN — Lead-in Lights
• ERA — European Regions Airlines Association
• DEPCOS — Departure Coordination System
• SRAP — sensor receiver and processor
• SUC — Start-Up Controller
• FRF — Further Route of Flight
• ONP — Open Network Provision
• DPA — Distinguishing Path Attribute
• CWO — Contract Weather Observer
• VSD — Vision and Strategy Document
• DBCRC — Defense Base Closure & Realignment Commission
• FDG — Flight plan Data Generator
• NOM — NAS Operations Manager
• ACT — William J. Hughes Technical Center

• ETFMS — Enhanced Tactical Flow Management Systems
• IASS — International Air Safety Seminar
• LIALPA — Leeward Islands Air Line Pilots' Association
• RIRT — Russian Institute of Radio Navigation and Time
• KSN — Knowledge Services Network
• PFLINT — Probability of Fault Localisation, internal
• FIW — Flight Input Workstation
• OV — Overseas National Airways
• ESDF — Environmental Static Data Processing and Distribution Function
• LAGPS — Local Area Global Positioning System
• SAAM — System for Assignment and Analysis at a Macroscopic level
• FPS — Military Primary Radar
• FWS — FAA Weather Service
• RDDII — Radio Digital Distance Magnetic Indicator
• PIS — Performance Indicators
• ISRAEL FE — Israel Flight Engineers
• LTSS — Long Term Systems Studies
• EPB — EATCHIP Project Board
• EAP — EATCHIP Alignment Process
• DRU — Data Retrival Unit
• SECM — Safety and Environmental Compliance Manager
• PCA — Propulsion Controlled Aircraft
• BPB — Business Plan Builder
• VFRG — Visual Flight Rules Group
• ATCAP — Air-Traffic Control Automation Panel
• PS — Pacific Southwest Airways
• VIVO — Visualisation des Vols Océaniques
• CPL — Customer Priority Listing
• ICMM — Integrated Capability Maturity Model
• SFPL — Short Flight Plan
• CYG — Cyclonic
• JSSI — Joint Safety Strategy Initiative
• NAMS — NADIN IA
• IPACG — Informal Pacific Air Traffic Services Co-ordinating Group
• CTAS — Center-TRACON Automation System
• GNLS — GNSS Navigation and Landing System
• XPD — ATC Transponder
• GANP — Global Air Navigation Plan
• SAPS — Staffing and Personnel System
• CTU — Cabin Telecommunications Unit
• FDE — Flight Data Exchange
• MSGDLP — Mode S Ground Data Link Processor
• RNPTF — Required Navigation Performance Task Force
• LATCC — London Air Traffic Control Centre
• ELM — Extended Length Message
• ARM — Air Request Message
• CEFA — Co-operation for Environmentally Friendly Aviation
• X25 — Standard protocol in telecommunications
• MIO — Manufacturing Inspection Office
• FKFE — Forum Komunikasi Flight Engineers

• FIXING — Chartering a Vessel
• WRC — World Radio-communications Conferences
• VTK — Vertical Track Distance
• STANLY — Statistics and Analysis
• ARA — Administrator for Research and Acquisition
• TSP — HRS Training Sub-Programme
• AISG — AIS Automation Group
• HWP — Holding Waypoint
• MTN — Mega Transport Network
• M1FC — Model 1 Full Capacity
• FRD — Facility Reference Data
• EIF — Extended Interface Function
• ATREP — Air Traffic Representative
• OPD — Optimum Profile Descent
• S/S — Sector Suite
• DALPA — Danish Air Line Pilots Association
• SOF — Stand-alone Operations Facility
• TWN — Tactical Weather Network
• JOINT — Joint Operational Incidents Training
• ADUG — Airport Database User Group
• AGAS — European Action Group for ATM Safety
• RMSPV — RMS peak value.
• MNPSA — Minimum Navigation Performance Specification Airspace
• TWR — Air Traffic Control Tower
• EVAS — EATMS Validation Strategy
• JSRA — Joint Sponsored Research Agreement
• ADIN — AUTODIN Service
• ATM — Air Transport Management
• CNATCC — Common National Air Traffic Control Centre
• VSIG — Vertical Separation Implementation Group
• NR — Noise Rating
• API — Advanced Passenger Information
• EAMG — European ATFM Management Group
• HFSG — Human Factors Study Group
• RW — Runway
• FADE — FAA/Airline Data Exchange
• HERMES — Harmonised En-Route Metering and Spacing
• CARTS — Common Automated Radar Terminal System
• ATAFG — African Air Traffic Analysis and Forecasting Group
• PDAR — Preferential Arrival And Departure Route
• CRAF — Central Reservation Airspace Facility
• ODP — ATM Operational Requirements & Data Processing
• FPM — Flight Progress Message
• SUP — Supplement
• SNDCF — Subnetwork Dependent Convergence Facility
• NSSG — Navigation and Separation Sub-Group
• JAA — Joint Aviation Authority
• INTERPOL — International Criminal Police Organisation
• NPIAS — National Plan for Integrated Airport Systems
• TMA — Terminal Area

• APPLA — Associacao Pilotos Portugueses Linha Aerea
• SARP — Standards And Recommended Practices
• IAOA — Indicated Angle-of-Attack
• ARS — Aeronautical Radio Navigation Service
• NOREP — National Oceanic Review and Enhancement Program
• NASR — National Airspace System Resources
• EBP — Emergency Bypass Processor
• S/C — Step Climb
• ARN-V3 — ATS Route Network - Version 3
• HDLC — High Level Data Link Communication
• MNCC — Multinational Coordination Centre
• FAPM — FTS2000 Associate Program Manager
• ERIT — Enhanced Radar Intelligent Tool
• FENA — Flight Engineers and Navigators Association
• FPT — Flight Plan Terminal
• CFB — Central Flight plan Bank
• OTFP — Operational Traffic Flow Planning (aviation)
• GHMI — Ground Human-Machine Interface
• CRC — Coordinating Research Council (USA)
• GA — go-around
• QNE — Altimeter subscale set to 1013,2 hectopascals
• PTT — Press to Talk
• NPM — NAS Program Manager/Management
• CLTP — Connection Less Transport Protocol
• CANDI — Civil Aviation Network Data Interchange
• FFLA — Flexible Flight Level Assignment
• UAC — Upper Area Control Centre
• ATAR — Automatic Air Reporting
• FFRDC — Federal Funded Research and Development Center
• DFM — Departure Flow Management
• FIC — Finance Committee
• NRC — Non-Recurring Charge
• CR — Course to a VOR Radial
• OPSW — Operational Switch
• CAN — Committee on Aircraft Noise
• IFOG — Interferometric Fiber Optic Gyroscope
• DAF — Demand Adjustment Factors
• PAAST — Pan American Aviation Safety Team
• JAR — Joint Airworthiness Regulations
• FSFO — Flight Standards Field Office
• WTR — Water on Runway
• RML — Radar Microwave Link
• RSC — Rescue Sub Centre
• CFII — Certified Flight Instructor Instrument
• TNH — Turn Height
• AOP — NAS Operations
• DETF — Data Exchange Trest Facility
• VVD — Vertical View Display
• DDL — Data Description Language
• SDS — Sub Domain Server

• ITC — in-trail climb
• OOR — Outline Operational Requirement
• CLEEN — Continuous Lower Energy Emissions and Noise
• FI — Iceland Air
• RBC — Rotating Beam Ceilometer
• EARC — Elimination of Ambiguity in Radiotelephony Call Signs
• OUNS — Operational Navigation System
• COSAAC — Common Simulator to Assess ATMF Concepts
• FIRST — Flexible Independent Radar Skill Trainer
• IRAS — Interactive Radar Analysis System
• MNTN — Maintain
• DCPC — Direct Controller-Pilot Communications
• FASC — FAA Aviation Safety Center
• SRQ — Slot Request
• VNV — Vereniging van Nederlandse Verkeersvliegers
• SMI — Special Message Identifier
• VLO — Maximum Landing Gear of Operating Speed
• CLOP — Criminal Liability of Pilots
• ERMS — Environmental Remote Monitoring System
• SRSG — Safety Regulation Sub-Group
• HEO — Highly-inclined Elliptical Orbit
• CASTA — Controller Associate for Strategic and Technical Advice
• TMZ — Transponder Mandatory Zones
• LIP — Limited Installation Program
• ASTOR — Aircraft Simulation for Traffic Operations Research
• VTR — Variable Takeoff Rating
• GERT — German NEAN Project Team
• NATMC — NATO Air Traffic Management Committee
• TWG — Training Working Group
• EPAC — Eurocontrol Programme Appraisal Committee
• ANS — Air Navigation Service
• CATTS — Computerized Air Traffic Training System
• IAARC — International Administrative Aeronautical Radio Conference
• HBF — Harmless Bulk Fertilizer
• RCIU — Remote Control Interface Unit
• VA — Heading to an Altitude
• IFIM — International Flight Information Manual
• FED — Fonds Europ?en de D?veloppement
• CMIC — Civil-Military Interface Standing Committee
• R/C — Rate of Climb
• DEFAMM — Demonstration Facilities for Airport Movement Management
• IACSC — Improved Airworthiness Communications Steering Committee
• MTSAT — Multi-functional Transport Satellite
• GAA — General Aviation Activity
• DEMO — Demonstration of Ecosystem Management Options
• PTR — Program Technical Report
• OSIP — Office Safety Inspection Program
• LFA — Local Flying Area
• COSU — Core Systems Unit
• FPWO — Flight Plan Work Station Operator

• VG — Ground Velocity
• MUSAC — Multiple Switching and Confirming
• CNG — Common Network Group
• ATCAS — ATC Automated System
• EATF — EATMS Architecture Task Force
• COM — Cockpit Operating Manual
• GMC — Ground Movement Control
• FDFM — Flight Data and Flow Management
• REDAC — Research, Engineering and Development Advisory Committee
• MTAT — Multiple Time Around Targets
• VM — Heading to a manual termination
• VDR — Very High Frequency Digital Radio
• CCC — Communications Command Center
• AIRCOM — Air Communications
• FOW — First Open Water
• AUTOVON — DoD Automatic Voice Network
• TCAA — Transatlantic Common Aviation Area
• WSC — West Sector Co-ordinator
• RDG — Radar Data Generator
• NODE — NATS Operational Display Equipment
• REDMACS — Research, Engineering, and Development Monitoring, Analysis and Control System
• METODA — Meteorological Observations and Information Distribution Arrangements for Local Aeronautical Users
• CAS — Cost Accounting System
• AEM — Airports & Environment Management
• DAA — Dynamic Airspace Allocation
• FDFMG — Flight Data and Flow Management Group
• LIRL — Low Intensity Runway Lights
• CDS — Controller Display Support
• AWS — Air Weather Station
• SBT — Self-Briefing Terminal
• KCAS — Calibrated Airspeed expressed in Knots
• AP — Airport Protection
• ENAV — En Route Navigational Aids
• PSR — Project Status Report
• MUDPIE — Multiple User Data Processing Interactive Environment
• VLE — Landing Gear Extended Placard Airspeed
• KALPA — Kenya Air Line Pilots Association
• DPC — Defence Planning Committee
• HTI — Human Technology Integration
• IRPL — Internal Repetitive Flight Plan
• GTM — General Terrain Model
• EUROPILOTE — European Organisation or Airline Pilots Association
• SCAT — Supersonic Civil Air Transport
• PANS — Procedures for Air Navigation Services
• EPMB — EASIE Programme Management Board
• RPF — Rapid Prototyping Facility
• ATSB — Air Transportation Stabilisation Board Australian Transport Safety Bureau
• SMR — Surface Movement Radar Study Group
• ANM — Northwest Mountain Region
• NAPRS — National Airspace Performance Reporting System

• EPSS — Enhanced Packet Switched Service
• DOF — Digital Obstacle File
• CP — Control Panel
• TFM — Traffic Flow Management
• MSR — Monthly Status Report
• CLRS — Clear and Smooth
• MTTRLRU — Mean Time to repair LRU
• SPS — Sensor Processing Subsystem
• HCI — Human Computer Interface
• COSCAP — Cooperative Development of Operational Safety and Airworthiness Activities
• NPE — Non-primary Airport Entitlement
• FMO — Facility Management Office
• IVR — Immersive Virtual Reality
• FTS2000 — Federal Telecommunications System 2000
• TTC — Telemetry and Telecommand Centre
• CPC — Certified Professional Controller
• PIDP — Programmable Indicator Data Processor
• ER — En-Route
• CLX — OCM Clearance Message
• PPOS — Present Position
• OCDB — Oracle Content Database
• ISC — Initial System Capability
• HEL — IFALPA Helicopter Committee
• JOT — Joint Operational Team
• AOT — Airport Operations Team
• DGPS — Differential GPS
• NMCE — Network Monitoring and Control Equipment
• RT&BTL — Radar Tracking and Beacon Tracking Level
• CPR — Conflict Prediction and Resolution
• OWN — TCAS II equipped aircraft - source of TCAS event
• AFRES — Air Force Reserve Station
• RTAD — Remote Tower Alphanumeric Display
• SASP — ICAO Separation and Airspace Safety Panel
• FSEP — Facility, Service, and Equipment Profile
• DEE — Data Entry Equipment
• FIAO — Flight Inspection Area Office
• ASV — Airline Schedule Vendor
• DEVD — CFMU – Development Division
• VNE — never-exceed speed
• LDA — Landing Distance Available
• SASS-S — Surveillance Analysis Support System - Sensor
• CUI — Committee on Unlawful Interference
• DEEC — Director of the Eurocontrol Experimental Centre
• COSYNUS — AIRBUS Training Database
• FDM — Flight Data Message
• APM — Accident Prevention Manual
• ERCG — External Relations Coordination Group
• CAPA — Cayman Airline Pilots Association
• CZ-ALPA — Czech Air Line Pilots Association
• ESYS — En Route Equipment Systems

• ERCS — EXM Resistant Communications System
• EGATCM — Eurocontrol Guild of Air Traffic Controllers - Maastricht
• IFFITAF — IFPS-DBE Functional Interface System Task-Force
• NDNB — NADIN II
• RISE — Retrieval and Interchange of Standards in Europe
• IGIA — Interagency Group on International Aviation
• EPSU — European Public Service Union
• DAISY — Distributed Airport Information System
• EWG — Executive Working Group
• ATCOTS — Air Traffic Control Optimum Training Solutions
• PML — Project Material List
• IPSKY — Internet Technology in the Sky
• CLW — Communications List Window
• FDT — Flight Deck Training Program
• OJTI — On-the-Job-Training Instructor
• MSSA — Message Switching System
• FMS — Fathoms
• ERN — Earth Referenced Navigation
• ITI — Italian Interface
• IVSN — Initial Voice Switched Network
• RLA — Relay to
• IND — Indication
• ARINC539A — Airborne 400 Hz AC Tape Reproducer
• TAX — Taxiway Lights
• IR — Ice on Runway
• RLB — Rolling Ball
• CNMPS — Canadian Minimum Navigation Performance Specification Airspace
• RTD — Research and Technical Development
• CWS — Collision Warning System
• ERV — ECM Resistant Voice
• DCD — Double Channel Duplex
• RASP — Radar Application Specialist Panel
• RCAG — Remote Communications Air/Ground
• LBR — LAN Based Random Access Plan Position Indicator
• ARC — Area Chart
• IPL — Intermediate Flight Plan
• CED — Categorical Exclusion Determination
• VPAE — Vertical Profile Angle Error
• ODID — Operational Input and Display System
• FDMSAW — Fully Digital Minimum Safe Altitude Warning
• BSP — Aircraft Parameter Downlink
• HIDE — Harmonised, Integrated Development Environment
• SEL — Selected Environmental Library
• RCF — Remote Communications Facility
• ODT — Onboard Maintenance Terminal Display Unit
• FIS — Flight Information Services
• HARA — Helicopter Airborne Radar Approaches Study Group
• EAN — European ATSO Network
• AOS — FAA Operational Support Service
• RSOQ — Radar Stores Occupancy Query

• UNCOE — United Nations Committee of Experts
• VDEV — Vertical Deviation
• IWGDS — Interim Weather Graphic-Display System
• COC — Combat Operations Centre
• PAMC — Provisional Acceptable Means of Compliance
• ASM — Air Space Management
• AWTA — Advise at What Time Table
• QFA — Qantas
• WEAAP — Western European Association for Aviation Psychology
• NCOP — Entry Coordination Point
• HERAS — Hellenic Radar System
• JSP — Joint Services Publication
• IFCP — Interfacility Communications Processor
• SMITF — Safety Monitoring and Improvement Task Force
• PAEW — Personnel and Equipment Working
• CIR — Cockpit Image Recorders
• POT — Point-of-Termination
• LSMS — Line Station Maintenance Section
• AISAP — AIS Automation Specialist Panel
• NTS — NOTAM Tracking System
• OPSP — Operational Panel
• ACR — Air Carrier
• DGCA — Director-Generals of Civil Aviation
• CC&O — Customer Cost & Obligation
• CRD — Conflict Risk Display
• ECOM — En Route Communications
• MECU — Millons of ECU
• OBS — omni-bearing selector
• FACTS — Future Area Control Tools Support
• BARTCC — Berlin Air Route Traffic Control Centre
• RLMS — Replacement Lamp Monitoring System
• NRP — National Route Program
• NCCA — No Clearance to Civil Aircraft
• ADSU — ADS Unit
• NFIS — NAS Facilities Information System
• CENTX — Central Telephone Exchange
• VFXR(R) — Flap Retraction Speed
• IRMP — Information Resources Management Plan
• GP — Grain Capacity
• CEU-E — Central executive unit with Responsibility for Eastern Europe
• ODT — Operational Requirements and Data Processing Team
• SAPPHIRE — Satellite and Aircraft Database Programme
• CDPS — Central Data Processing System
• LTT — Landine TeleTypewriter
• MIT — Miles-In-Trail
• NAVAID — Navigation Aid
• NHCFAE — National Hispanic Coalition of Federal Aviation Employees
• AIRSTRM — Assuring the Implementation of Regulations for the Safe Transport of Radio-active Materials
• QAR — Quality Assurance Resources
• SCAA — Slovenian CAA

• W2 — World Airlines
• ATIF — ATN Trials Infrastructure
• PATS — Precision Approach Tracking System
• NFDD — National Flight Data Digest
• EIPA — European Institute of Public Administration
• MISO — Manufacturing Inspection Satellite Office
• ESARR — Eurocontrol Safety Regulatory requirements
• PFCS — Primary flight computer system
• TALPA — Turk Hava Yallair Pilotlari Dernegi
• EGALPA — Egyptian Air Line Pilots Association
• FSIAG — Flight Service Information Area Group
• VSCS — Voice Switching and Control Systems
• VDP — Visual Descent Point
• CAMOS — Central ARTAS Maintenance & Operational Support
• ME — Multi-engine
• APIRG — African Planning and Implementation Regional Planning Group
• CER — Cancel Emergency Mode Request
• EDD — Electronic Data Display
• CIP — Convergence and Implementation Programme
• FIT — Flight Integration Task
• ANCONF — Air Navigation Conference
• NAPM — National Associate Program Manager
• OCS — Oceanic Control System
• RRHS — Remote Reading Hydrometer
• OIS — OGE Input Simulator
• TLPD — Traffic Load Prediction Device
• CASI — CFMU Aircraft Situation Image
• ARLNO — Airline Office
• GIVD — Gravity Induced Vestibular Dysfunction
• DLAP — Down Linked Aircraft Parameters
• OOD — Object Oriented Designer
• C.O. — Certificate of Origin
• NDB — Nondirectional Radio Beacon
• ZULU — Equivalent to Greenwich Mean Time
• NASE — NAS Adaptation Services Environment
• RMCC — Remote Monitor Control Center
• CRATF — Communications Requirements Analysis Task Force
• RTIS — Road Travel Information Services
• IFE — In-Flight Entertainment
• FEODP — Flight Edit and On-Demand Printing
• SNPL — Syndicat National des Pilotes de Ligne
• CRE — Class Rating Examiner
• EMPS — En Route Maintenance Processor System
• ER-PC — En-Route Planner Controller
• CFC — Central Flow Control
• PDRP — Problem Detection and Resolution
• FPDETF — Flight Plan related Data Exchange Task Force
• COCOS — Computer Controlled SSR Code Assignment
• CIMO — Committee for Instruments and Methods of Observation
• VMP — Vertical Measurement Panel

• HAW — Horizontal Aid Window
• VSI — Stalling Speed in a Specified Flight Configuration
• ERA — European Regional Airlines Organisation
• XCD — Exceptional Conditions
• MMS — Maintenance Monitoring System
• CESC — Chief Executive Standing Conference
• CREME — Creating the EATCHIP Management Environment
• APG — Asosiasi Pilot Garuda
• AVPAC — Aviation Very High Frequency Packet Communication
• AMC — Mike Monroney Aeronautical Center
• MOCC — Mid-States Operations Control Center
• RLG — Ring Laser Giro
• LTF — Licensing Task Force
• IPG — Indian Pilots Guild
• TFG — Traffic Forecasting Group
• ASW — Southwest Region
• NVFR — VFR by night
• DPE — Digital Plot Extractor
• CMIC — Civil/Military Interface Committee
• EAD — Emergency Airworthiness Directive
• WXXM — Weather eXchange Model
• LFDS — Large Facility Demarcation System
• ANT — Air Navigation Team
• AOWP — Airport Operations Work Plan
• TSRV — Transport System Research Vehicle
• CPD — Coupled
• AOA — Aircrew Officers Association
• OUR — CFMU Operational User Requirements
• FIPS — Federal Information Publication Standard
• CWDPS — Central Weather Data Processing System
• TC — Transit Corridor
• SSRC — Current SSR Code
• CP — Circular Polarisation
• CCQ — Cross Cockpit Qualification
• LTV — Load Threshold Values
• TAR — Terminal Area Radar
• TRANS — Transition
• ITID — Individual Training- Instructor-dependent
• SITNA — Service Technique de la Navigation Aérienne
• IPV — Instrument Approach with Vertical guidance
• OLS — Off Line System
• EPHOS — European Handbook for Open Systems
• SASO — System Approach for Safety Oversight
• TVOR — Terminal Vor
• EHT — Extemely High Tension
• FREER — Free-Route Experimental Encounter Resolution
• GRP — Geographical Reference Points
• FFU — Fire Fighting Unit
• RIT — RADNET Implementation and Integration Team
• CTMA — Center Traffic Management Advisor

• ISR-ALPA — Israel Air Line Pilots Association
• FAR — Federation Aviation Regulations
• SET — Spacing Efficiency Tool
• TCPU — Touch Panel Central Processing Unit
• SFD — Start Frame Delimiter
• FDO — Flight Data Operations Division
• E/D — End-Of-Descent
• MDFM — Material Delivery Forecast Module
• PRU — Performance Review Unit
• VREF — Approach Reference speed
• SRS — Shuttle Reservation System
• EAC — East Assistant Controller
• TC-APD — Tactical Controller Activity Predictor Display
• OA — Object Oriented Analysis
• SCAT-1 — Special Category 1
• ISBP — Information Security Business Portal
• ICAAS — Integrated Control in Avionics for Air Superiority
• HWG — Harmonisation Working Group
• EGNOS-EM — European Global Navigation Overlay Service
• SIMMOD — Airspace and Airport Simulation Model
• HSI — Horizontal Situation Indicators
• CENA — Centred Études de la Navigation Aérienne
• MMO — Mach Max Operating
• CDA — Continuous Descent Arrival
• ATMRPP — ATM Requirements and Performance Panel
• EPIC — Extended PCM Interface Controller
• FDG — Flight Data Group
• SNACP — Subnetwork Access Protocol
• VAP — Visual Aids Panel
• SICTA — Italian Consortium for the Applied ATM Research
• EVS — Enhanced Visual System
• VPD — Vertical Polar Diagram
• JAR — Joint Aviation Requirements
• SVS — Synthetic vision system
• HVY — Heavylift Cargo Airlines
• RMLS — Remote Monitoring and Logging System
• LFHB — Low Flying Handbook
• PJSA — Project Scope Agreement
• IAOPA — International Aircraft Owners and Pilots Associations
• TUM — Time Update Message
• IFDS — Interactive Flight Data System
• VF — Design Flap Speed
• HCD — Hard Copy Device
• FAN — False Alarm Normaliser
• RMSC — Remote Monitoring Subsystem Concentrator
• IFLIPS — Integrated Flight Prediction System
• GMS — Grants Management System
• SME — Subject Major Expert
• QNH — Quantity
• CPC — Control and Processing Centre

• IGS — International GPS Reference Network
• METI — Meteorological Information
• CASA — Computer Assisted Slot Allocation
• ARCP — Aerodrome Reference Code Panel
• XCOP — Exit Co-ordination Point
• HUPER — IFALPA Human Performance Committee
• CAPE — Computer Assisted Planning Experiment
• RMA — RELIABILITY MAINTAINABILITY AVAILABILITY
• XCOR — Cancel Correlation
• FREER — Free Route Experimental Encounter Resolution
• APB — Acquisition Program Baselines
• HAD — Human Aspects Development
• OIDS — Operational Information Display System
• HPRES — Pressure Altitude
• IFDS — Interfacility Data System
• DMC — Detachment of Military Coordinators
• TMF — Thrust Management Function
• FSPD — Freeze Speed Parameter
• CMAP — Center Mapping Automation Program
• JACC — Joint Area Control Centre
• SICT — System Implementation Coordination Team
• HWAS — Hazardous In-Flight Weather Advisory
• OCU — Onboard Maintenance Terminal Controller Unit
• TWS — Terrain Awareness and Warning System
• AOP — Aeronautical OSI Profile
• TMA-TC — TMA Tactical Controller
• EHQ — Eurocontrol Headquarters
• GOEST — GOES Terminal Equipment
• EROC — Study Group on En-Route Obstacle Clearance Criteria
• SEPLA — Sindicato Espanol de Pilotos de Lineas Aereas
• FIA — Icelandic Air Line Pilots Association
• MOPS — Minimum Operation Performance Standards
• LAHSO — Land and Hold Short Operations
• EADTF — European AIS Database Task Force
• IAS — Investment Analysis Staff
• EGNOSS — European Geostationary Navigation System Overlay
• TRANSSAC — Transport Safety Standards Advisory Committee
• MSGTXT — Message Text
• LX — Crossair
• DMA — Divergence Monitoring and Alert
• UACC — Upper Airspace Control Centre
• DPL — Displayed Flight Plan
• PTC — Presumed-to-Conform
• DLRS — Digital Legal Recording System
• FTPC — Flight Technical Professional Committee
• ITEB — Information Technology Executive Board
• SW — Shrapnel (Shell)
• SMX — Sub-Multiplexer
• PSL — Projected Service Life
• VRRS — Voice Recording and Display System

• FUA — Flexible Use of Airspace
• FDFM — Flight Data and Flow Management Group
• MTTRSRU — Mean Time to repair SRU
• GNC — Global NAVCOM
• PPO — Prior Permission Only
• EVCS — Emergency Voice Communications System
• AS — Airspace Systems
• IHST — International Helicopter Safety Team
• SPLA — Syndicat des Pilotes de Ligna Algeriens
• ODL — Oceanic Data Link
• LUG — Leerdam Users Group
• WXMS — Weather Mapping System
• CDS — Cabin Distribution System
• DFL — Dynamic Flight Leg
• IFHO — International Federation of Helicopter Operators
• LUGS — Link up Glons-Semmerzake
• NPO — Scientific Production Organisation
• MSGSUM — Message Summary
• SEOAT — Systems Engineering Operational Analysis Team
• WTWS — Windshear and Turbulence Warning System
• IPRT — Internal Processing Response Time
• SSS — System Specification
• I/R — Interrogator/Responsor
• TMRR — Temporary Minimum Disk Route
• PATRAM — Packaging and Transport of Radioactive Materials
• LDGNSS — Local Differential Global Navigation Satellite System
• OFS — Ordered Field Sequencing
• ETA — EstimatedTime of Arrival
• OMS — On-board Maintenance System
• CEI — Cabin Equipment Interfaces
• SCDT — Selected Controlled Departure Times
• HDR — Hardware Discrepancy Report
• KAR — Karlsruhe
• SGCAS — Study Group on Certification of Automatic Systems
• LCR — Lowest Current Rate
• TATCA — Terminal ATC Automation
• IFEA — Indian Flight Engineers Association
• NSTB — National Satellite Test Bed
• EAWDG — Architecture Workshop Drafting Group
• CRI — Class Rating Instructor
• GFM — Graphical Information Category Fixec Maps
• MWP — Meteorological Weather Processor
• OPAC — Operations of Aircraft
• SISG — Safety Indicators Study Group
• FFAS — Free Flight Airspace
• PIRG — Planning and Implementation Regional Groups
• PDS — Programme Development System
• MNPSA — Minimum Navigation Performance Specifications Airspace
• NTAP — Notices To Airmen Publication
• NUP — NEAN Update Programme

• GOTV — GNSS Operational Test and Validaton
• TAI — Thermal Anti-lce
• OUR — Operational Users Requirements
• FO — First Officer
• PRC — Performance Review Commission
• FACTOR — Development of Functional Concepts from the EATMS Operational Requirements
• RDSS — Radar Determination Satellite System
• AFD — Associated Flight Details
• SNICF — Subnetwork Independent Convergence Function
• NF — Norwegian Air Line Pilots Association
• BERMS — Beacon Environmental Remote Monitoring Subsystem
• NAWPF — National Aviation Weather Processing Facility
• SCATCC — Scottish Air Traffic Control Centre
• ITSTC — Information Technologie Steering Committee
• QRH — The barometric pressure as reported by a particular station
• FLOE — Informal Flow Control Europe East
• FISDL — Flight Information Services Data Link
• TSO — Technical Standards Order
• SOAR — System of Airports Reporting
• MOR — Military Operational Requirements
• FC — Course from a Fix to a Distance
• DMAS — Director Maastricht Control Centre
• STAP — Statistics Panel
• OSD — Operational Suitability Demonstration
• EC — Executive Controller
• DED — Director EATCHIP Development
• IAAC — International Agricultural Aviation Centre
• MBST — Microburst
• NFDC — National Flight Data Center
• ARM — Airspace Risk Model
• DG — double-glass
• HTA — Hermes Training Aircraft
• LATCO — Licensing of Air Traffic Control Officers
• MURATREC — Multi-Radar Track Reconstruction
• NARP — National Aviation Research Plan
• ASH — FAA Office of Security & Hazardous Materials
• RMCDE — Radar Message Conversion and Distribution Equipment
• NACG — National Aeronautical Charting Group
• SETP — Society of Experimental Test Pilots
• MSUP — Military SUPervisor
• NEAP — North European Application Project
• GAPAN — Guild of Air Pilots & Navigators
• UUP — Updated Use Plan
• MTCS — Modular Terminal Communications System
• NCF — National Control Facility
• PSD — Process Support Document
• N2 — Second stage turbine speed
• CA — Conflict Alert
• TDSP — Training Documentations and Special Projects
• SEIFR — Single-Engine Instrument Flight Rules

• ESA — Eastern Service Area
• DMAN — Departure Manager
• QUESTIONAIR — Computer-based ATM questions bank
• DW — Dual wheels
• HMS — Hydraulic Module Speed
• FBS — Fall Back Switch
• MSDS — Microsoft Data Engine
• NEMC — Network Enterprise Maintenance Center
• LAC — Logical Access Control
• ASP — AIRCOM Service Processor
• SSR — Solid State Relay
• LFS — Low-Fidelity-Simulation
• PRICE — Proficiency Requirements in Common English Study Group
• PROV — Provisional
• NSWC — Naval Surface Warfare Centre
• IACH — Individual ATC Flight Plan Changes
• RCC — Rescue Co-ordination Centre
• TIS-B — Traffic Information System - Broadcast
• MACEN — Mando Centra
• SVFR — Special VFR
• PID — Pilot Information Downlink
• TDB — Track Data Block
• FICO — Flight Inspection Central Office
• NWSR — NWS Weather Excluding NXRD
• RAN — Regional Air Navigation
• LAF — Local Adaptation Functions
• GLSU — GPS Landing System Unit
• DECR — Decrement
• LDGPS — Local DGPS
• VSM — Vertical Separation Minimum
• FUS — Functional Units or Systems
• OALT — Operational Acceptable Level of Traffic
• EATN — Experimental Aeronautical Telecommunication Network
• GASAG — Global Aviation Security Action Group
• RSI — Radiation Status Indicator
• SIAP — Standard Instrument Flight Procedure
• ARM — FAA Office of Rulemaking
• VORTAC — VHF Omni Range Radio/Tactical Air Navagation
• RSCD — Runway Surface Condition
• TCB — Training Co-ordination Board
• TDA — Track Detection Analysis
• LFU — Late Filer and Udater
• GSP — Good Safe Port
• WAFS — World Area Forecast System Study Group
• RDPP — Radar Data Post Processor
• TMCU — Tower Main CWP Unit
• OASIS — Operational and Supportability Implementation System
• DAC — Dynamic Air Traffic Control Test
• NCAB — National Civil Aviation Board
• SPIFR — Single Pilot Ifr

• FSG — Flight Study Group
• DAP — download of aircraft parameter
• RO-ALPU — Romanian Air Line Pilot's Union
• ODAPS — Operational OGE Data Acquisition and Patch Subsystem
• IFPU — IFPS Unit
• IFALPA — International Federation of Air Line Pilots Associations
• CWSU — Central Weather Service Unit
• VISSR — Visible-Infrared Spin Scan Radiometer
• VAC — Visual Approach Chart
• NSAP — National Service Assurance Plan
• CCCC — Staff Communications
• STU — Selected Trajectory Update
• POLALPA — Stowarzyszenie Polskich Pilotow Komunikacyjnych
• HFTE — Human Factors Testing and Evaluating
• ASW — Air Situation Window
• SCC — System Command Center
• CMG — Crisis Management Group
• OPR — Air Traffic Management Operational Requirements
• DISU — Drug Investigation Support Unit
• CDR — Conditional Route
• RTF — Radio Telephony
• XCM — Crossing Request Cancelation Message
• DRA — Defense Research Agency(UK)
• RSM — Radar Service Message
• RCRT — Refresh Cycle Response Time
• DNTKFX — DownTrack Fix
• LFL — Last Flight Level
• EWAN — EGNOS Wide Area Network
• RDC — Routing Domain Confederation
• HDME — NDB with Distance Measuring Equipment
• TMSSG — Top Management Structure Sub-Group
• NLM — Network Loadable Module
• P2R2 — Preferred Route Reduction Program
• LOSA — Line Orientated Safety Audit
• RCHG — Repetitive Flight Plan Modification Message
• PRFG — Aerodrome Partially covered by Fog
• SSRBRIGH — Highlight set code to target
• SFLA — Assign SFL
• HCA — Human-Centred Automation
• FLOW — Informal Flow Control Europe West
• SWET — Swedish NEAN Project Team
• FRMS — Facility Roster Management System
• TMC — Traffic Management Coordinator
• AOPG — Aerodrome Operations Group
• VS — Vocational Stabilisation
• RMCF — Remote Monitor Control Facility
• INR — Image Navigation and Registration
• DOP — Daily Operations Plan
• PGS — Personnel General Services Team
• RNDSG — Route Network Development Sub-Group

• BULKHEAD — A vertical partition separating compartments
• RAPS — Recovery Access Presentation System
• RPG — Regional Planning Group
• CYPRO — Cyprus Project for ATC Improvements
• PIAC — Peak Instantaneous Aircraft Count
• MIDAS — Multi-Discipline Data Analysis System
• SESMA — Special Event Trend Analysis
• MCMG — Military Committee Meteorological Group
• PPD — Plans and Policy Division
• TIZ — Traffic Information Zone
• NSD — Navigational Status Display
• SAMTF — Safety Assessment Methodology Task Force
• SICASP — SSR Improvements and Collision Avoidance Systems Panel
• ACG — ATN/CNS Consultancy Group
• HFS — Human Factors Studies
• EFDFMG — EUROCONTROL Flow Data and Flow Management Group
• RBSS — Radar Bomb Scoring Squadron
• LAM — Activation Message
• II — Interrogator Identity
• RLP — Remote Line Printer
• XIN — Military Crossing Intention Notification Message
• OIP — Organization Iberoamericana de Pilotos
• SCAT — Staffing and Cost Analysis Tool
• MCI — mode C intruder
• IBR — Intermediate Bit Rate
• NATS — National Air Traffic Services (UK)
• MNS — Mobile Network Service
• NSSR — New Secondary Surveillance Radar Code
• LW — landing weight
• VAA — Value Added Applications
• BA — Budget Analyst
• IFFAS — International Fund for Aviation Safety
• GRACYAS — Caribbean/ South American African Regional Planning Group
• TCDP — Technical Control Data Processor
• EPG — EASIE Policy Group
• RNAV — Workstations, Intelligent tools, and Networks
• EVP — EATM Validation Project
• RITA — Replay Interface for TCAS Alerts
• DEP-VKL — Departure Controller
• PATA — Polish Air Traffic Agency
• CDS — Central Dispatch System
• FPLA — Flight Plan Application Section
• CUR — Current Sector
• SEL — Single Event Level
• VP — Vertical Profile
• TARA — Terminal Area R-NAV Applications Sub-Group
• MNWG — Multinational Working Group
• QSIG — Signalling to a Q Reference Network
• SSALF — Ssals with Sequenced Flashers
• AISPOP — AIS Planning and Operations Subgroup

• LF — Late Filer
• CMB — climbing
• IG — Meridiana
• PFE — Path Following Error
• DRC — Dynamic Route Change
• CARS — Civilian Air Routes System
• EIIC — Electronics Installation and Implementation Centre
• MFO — Medical Field Office
• CALLSGN — Callsign
• TATCA — Terminal Air Traffic Control Automaiton
• XASP — Extended AIRCOM Service Processor
• MCC — Multi Crew Coordination
• AVLC — Aviation VHR Link Control
• OPC — The control indicated is operational control
• RSL — Runway Status Light
• FNMS — FTS2000 Network Management System
• CMC — Constant Mach Blimb
• NAVAIDS — Navigational Aids
• IAP — Instrument Approach Plate
• PERDIEM — By the Day
• VC — Vereinigung Cockpit
• RDQC — Radar Data Quality Control
• RDTE — Research Development Trials and Evaluation
• TRA — Thrust Reduction Altitude
• PDB — Performance Data Base
• TFTS — Terrestrial Flight Telephone System
• ODIN — Briefing System
• RVM — Radar Video Map
• MEDLL — Multipath Delay Lock Loop
• ESF — Essential Support Facilities
• SPA — Suriname Pilots Association
• VTN — Voice Telecommunications Network
• NCIU — NEXRAD Communications Interface Unit
• CANAC — Computer Assisted National ATC Centre
• ISDU — Inertial System Display Unit
• RAA — Regional Airline Association
• SRC — Safety Regulation Commission
• EASG — EASIE ATM Support Group
• IREN — Incident Reporting European Network
• HE — Altitude Error
• MMOC — Martin-Marietta Overseas Corporation
• NLR — National Research Laboratory
• SOGITS — Senior Official Group in IT Standardisation
• JTST — Jet Stream
• CAPAN — Capacity Analyser
• PEC — Pan European Conference
• PETAL — Preliminary Eurocontrol Test of Air/Ground Data Link
• MAPA — Malaysian Airline Pilots Association
• IFPO — IFPS Workstation Operaror
• VU — Utility Speed

• ODRA — Office of Dispute Resolution for Acquisition
• OPD — Operational Procedures Document
• DNS — Digital Network Signalling
• MCTR — Military CTR
• RTDS — Radar Terminal Display System
• MADREC — Maastricht Data Recording
• RTG — Radio Telegraphy
• GEMS — Generic Error-Modelling System
• CAMUS — Czech Automated Multi radar System
• B — Below
• CMTP — Common Medium Term Plan
• METAG — MET Advisory Group
• RSPD — Reported Speed
• MMIL — Martin-Marietta International Link
• FITAMS — Flight Trials of ATN and Mode S activity
• JCCA — Joint Committee for Civil Aviation
• RIG — Regional Implementation Group
• NCMS — Network Channel Management Station
• WAA — Wide Area Augmentation
• MSN — Message Switching Network
• AVS — FAA Office of Aviation Safety
• SRM — Slot Revision Message
• MACE — Multi-criteria analysis for Concept Evaluation
• LCM — Late Change Message
• OSDS — Oceanic System Development and Support
• VREF — Reference Velocity
• JAMC — Joint Airspace Management Cell
• CATSA — Croatian air Traffic Services Authority
• VAW — Vertical Assistance Window
• PAK — Pilot Acknowledgement
• JATO — Jet Assisted Takeoff
• CARD — Conflict and Risk Display
• WPT — Way Point Technologies
• ATSCCP — ATS Contingency Command Post
• RWSL — Runway Status Lights
• UPA — Uganda Pilots Association
• RSSP — Radar Systems Specialist Panel
• NOCC — National Operation Control Center
• SF — Special Freighter
• OPIF — Operator Interface
• T/D — Top of-Descent
• IND — IFALPA Industrial Committee
• NAAN — North Atlantic ADS-B Network
• IPS'S — Intellectual Proprietary Rights
• NDP — National Airspace System Defense Programs
• DGVII — Directorate General VII
• SICASP — Secondary Surveillance Radar Improvements
• EUR-RAN — European Regional Air Navigation
• ODU — Output Distribution Unit
• FEATS — Future European Air System Concept Group

• LPC — Logistics Program Coordinator
• CVO — Code Validity Overlap
• MMC — Maintenance Monitoring Console
• PEL/TRG — Personnel Licensing and Training
• PROMET — Provision of Meteorological Information
• OLDISP — OLDI Specialist Panel
• EIS — Environmental Information Sampling
• SOR — State Of Readiness
• ATCSQ — ATC Safety Questionnaire
• MSTU — Multiple Stagger Trigger Unit
• CAO — Computer Assisted Operations
• FDIOC — Flight Data Input/Output Center
• LPA — Lebanese Pilots Association
• RNDSG — Route Network and Development Sub-Group
• EES — European Eastern States
• ITMD — Individual Training - Material-dependent
• ERNP — European Radio Navigation Plan
• IST — InterService Team
• FST — Fuel Storage Tanks
• OTPS — Oceanic Traffic Planning System
• TDI — Track Deviation Instrument
• NSM — Network System Manager
• CMSND — Commisissioned
• FMA — Final Monitor Aid
• EGIP — European Gateway for INO Provision
• EWPA — EATCHIP Work Programme Adaptation
• PAD — Packet Assembler/Disassembler
• CPC — Circulo de Pilotos de Chile
• SIC — Service Initiation Charge
• SEC — IFALPA Security Committee
• TWR — Tower Control Unit
• SMC — Surface Movement Control
• SCC — Satellite Control Centre
• WEAA — Western European Airports Association
• DRF — Departure Flow Regulation
• ALT — Airborne Link Terminal
• SPNT — Syndicat Personnel Navigant Technique de Tunisia
• OLR — Off Load Routes
• FCOM — FSS Radio Voice Communications
• RIS — Relational Interface System
• LVP — Low Visibility Procedures
• PCM — Post Crash Management
• RLIM — Radar Data Line Interface Module
• NCAIC — National Civil Aviation Information Centre
• RRH — Remote Reading Hygrothermometer
• MCS — Maintenance and Control System
• EBUS — Enhanced Backup Surveillance
• FS — Foot Switch
• NSWRH — Nws Regional Headquarters
• FDS — Flight Data Section

• SWISSALPA — Swiss Air Line Pilots Association
• PGMM — Program Management Methodology
• PGMP — Pilot Group on ATCO Manpower Planning
• CRITTER — Civil Rotorcraft IFR Terminal-Area Technology Enhancement Research
• SCT — Southern California Area TRACON
• TDCE — Telephone Distribution and Control Equipment
• AVENUE — ATM Validation Environment for Use towards
• PFA — Pilot Friendly Airport
• LIW — Label Input Window
• SUDP — Surveillance data Processing
• PDTWG — Plot Data Transmission Working Group
• PTUK — Pilots Trade Union Kazakhstan
• WIAS — Weather Information Automated System
• ITP — in trail procedure
• EC — Engineering Center
• FPA — Finnish Pilots Association
• RTCA — Radio Technical Committee on Aeronautics
• VMO — Velocity Max Operating
• ITA — Institute of Air Transport
• OFA — Object Free Area
• SBIR — Small Business Innovative Research
• PROP — Propellor
• SAS — Safety Assurance System
• REL — Runway Entrance Light
• CSR — Communications Service Request
• SACAA — Southern African Civil Aviation Authority
• SNME — Subnetwork Management Entity
• NSVN — NATO Secure Voice Network
• EWS — Experimental Workstation Simulator
• DANT — Danish NEAN Project Team
• CPL — Commercial Pilot Licence
• PAM — Peripheral Adapter Module
• EAM — Eurocontrol Airspace Model
• IWGE — International Working Group on Exercises
• GSIF — Ground Station Identification Frames
• RS — Reference Station
• PCC — Planning Co-ordination Controller
• LCC — Lifetime Cycle Costing
• FDIOR — Flight Data Input/Output Remote
• RTB — Radar Tool Box
• ITR — International Transit Route
• SEL — Selected Equipment List
• NOMAS — NOTAM Management System
• LAS — Lower Airspace Sector
• PED — Primary Engine Display
• CRA — Conflict Resolution Advisory
• OHTF — Operational Harmonisation Task Force
• AL — Aircraft Label
• RECDPS — Recording Data Processing System
• EACAC — Evolutionary AIR Ground Cooperative ATM Concept

• ORS — Obstruction Repository System
• CASST — Commercial Aviation Safety Strategic Team
• OPA — Opaque, white type if ice formation
• GOESF — GOES Feed Point
• NAVSEP — Panel Experts on Navigation and Separation
• IACSP — International Aeronautical Communications Service Providers
• RBPM — Remote Beacon Performance Monitor
• RMCD — Remote Master Control Desk
• OSRWG — Oceanic Separation Reduction Working Group
• AOS — Airport Operations Strategy Drafting Group
• TSIKADA — Russian four-satellite civil navigation system.
• RTD — Research and Development of Technologies
• LFPP — Limited Flight Plan Processing
• NCIPD — National CIP Documents
• HHDW — Handy Heavy d.w.
• GR — Geographical Rotation
• RET — Airborne & Ground Retrofit
• SSDG — Surveillance Strategy Drafting Group
• MST — Multiple Sensor Tracking
• NOTAM — Notice for Airman
• MTP — Medium-Term Plan
• PCB — Personnel Compensation and Benefits
• PEX — PHIGS Extended X-Windows System
• ATS — Automatic Throttle System
• SCAN — Swiss Data Network
• FAATC — FAA Test Centre
• TDCP — Test Display and Control Panel
• RTSIM — Real-Time Simulation
• NAVMN — Navigation Monitor and Control
• SSM — System Support Modification
• OAP — Oceanic Automation Program
• CPC — Constant Pitch Climb
• CTC — Centralized Train Central
• MANIFEST — Inventory of cargo on board
• NDC — National Data Center
• EIAF — Expanded Inward Access Features
• RTI — D-RVR Delivery Messge
• LEFD — Local Essential Flight Details
• SERC — Software Engineering Resource Center
• HIRE — T/C Remuneration
• RAPNET — Regional Aeronautical Packet
• RIP — Runway Incursion Program
• OPLT — Operational Acceptable Level of Traffic
• SST — System Shakedown Testing
• PES — Proposed Eurocontrol Standard Document
• NAVSEP — Navigation and Separation Specialist Panel
• CNS — Communications Navigations and Surveillance
• GM — guidance material
• SSGT — Surveillance Sub-Group on Tools
• SESY — Service Systems Section

• LCF — Local Control Facility
• NBCFAE — National Black Coalition of Federal Aviation Employees
• PZ — Portotroz
• ITD — In-Trail Descent
• NOG — National Operations Group
• WPS — Working Positions
• EXY — Easyjet
• HI-EFAS — High Altitude EFAS
• NATSPG — North Atlantic Systems Planning Group
• MPAR — Multifunction Phased Array Radar
• MEARTS — Micro-EARTS
• XMET — Cancel METAR
• ILM — Inventory Logistics and Maintenance Suite
• IMP — Implementation Services
• RSUS — RPL Suspension Message
• SSE — Servicing Security Element
• TWYL — Taxiway Lights
• NTRY — Entry
• NOC — Notice Of Completion
• PBCT — Proposed Boundary Crossing Time
• RMLT — RML Terminal
• ERATO — En Route Air Traffic Organiser
• VAW — Volcanic Ash Warnings
• SGTOAA — Study Group on Take-off Accountability Areas
• HIFA — Human Integration in Future ATM Systems
• HBT — Human Behavioural Technology
• TKX — Crosstell Tracker
• CWIR — CFMU Generated What-If Re-routing
• TLA — Title Line Area
• RTPTS — RouTe PoinTS
• CMV — Coverage Measurement Volume
• HTD — History Trial Dots
• RICE — RTF Interface Control Equipment
• OPSNET — Operations Network
• VPIP — Vertical Intercept Point
• RRWDS — Remote Radar Weather Display
• SMHI — Swedish government owned MET Institute
• NGATM — New Generation Air Traffic Manager
• NSP — National Simulator Program
• TNAV — Time Navigation
• SUP/MIL — Supervisor military
• OC4J — Oracle Containers for Java Enterprise Edition
• TSRV — Transport Systems Research Facility
• NAT-TFG — North Atlantic Air Traffic Forecasting Group
• U — Upward
• ATISR — ATIS Recorder
• STT — Studies, Tests and Trials
• SNBNK — Snowbank Caused by Plowing
• TOPM — Take-Off Performance Monitors
• SSGS — Surveillance Sub-Group on Standards

• VLDM — Very Low Dispersible Material
• CSC — Central Service Center
• RSMTF — Radar Separation Minimum Task Force
• SCAT-1 — Special Category One
• FPM — Flight Position Monitor
• RPMES — Regional Program Manager for Environment and Safety
• EGNOS — European Global Navigation Overlay Service
• SUP/APP — Supervisor Approach
• FIT — Flight Plan Input Terminal
• LROPS — Long Range Operations
• PASYI — Pan-Cyprian Airline Pilots Union
• ELWRT — Electrowriter
• VSSG — Vertical Separation Study Group
• RDM — Running Display Message
• SNACF — Subnetwork Access Function
• CPS — Central Print Service
• NDA — Next Data Authority
• HELLANET — Hellenic aeronautical Network
• MAM — Maintenance Assumed Monitoring
• TKOF — Take-off
• PEA — Parameter and Environment Assembler
• EWBS — EATCHIP Work Breakdown Structure
• HUNALPA — Hungarian Air Line Pilots Association
• SATCO — Signal Automatic Control
• RCF — Radio Communications Failure
• NONSTD — Nonstandard
• OAS — Oceanic Automation System
• NAR — National Airspace Review 66
• MILSPEC — Military Specifications
• SSD — System Support Directive
• GLS — Global Landing System
• NXRD — Advanced Weather Radar System
• LATC — Local Air Traffic Control
• PEM — Phone Emergency Module
• FMDB — Fault Message Database
• SSRWG — Systems Safety Risk Working Group
• RPG — Radar Processing Group
• RLBCS — Rolling Ball CallSign
• VAR — Variation Magnectic
• FOW — free on wharf
• OTT — D_OTIS Termination Message
• ETO — Engineering Technical Officer
• POH — Pilot Operating Handbook
• TRNSG — Testing of Radio Navaids Study Group
• CZW — Conflict Zoom Window
• PHIBUF — Performance Buffet Limit
• SCVTS — Switched Compressed Video Telecommunications Service
• PAMRI — Peripheral Adapter Module Replacement Item
• PIM — Program Implementation Manager
• CDN — Coordination

• PRODAT — PROSAT Data Link Experiment
• QRPS — Route Points Store
• ARN — ATS Routes and Associated Navigation Means
• TCA — Terminal Conflict Alert
• PFD — Planned Flight Data
• RBI — Relative Bearing Selector
• RJT — Rerouteing Rejection Message
• NSC — National Service Center
• SPF — Svensk Pilot Forening
• RIC — Radar Integration Control
• RASCAL — Rotorcraft Air Crew Systems Concepts Airborne Laboratory
• EEE — Etudes, Essais and Experimentation
• ATOVN — AUOTVON
• IAM — Informal Application Manual
• SES — Supplementary Equipment and Services
• HKAOA — Hong Kong Aircrew Officers Association
• ONER — Oceanic Navigational Error Report
• CMT — Critical Milestone Test
• SSD — Synthetic Situation Display
• PASS — Professional Airway System Specialists
• SMT — Schedule Management Toolset
• PA — Project Authorization
• RINAL — Portuguese Data Network
• SGAMI — Select Group for Assessing Manpower Issues
• RPOC — Risk Point-of-Contact
• FR — First Refusal
• SFD — Service Flow Diagram
• EPI — Element Performance Inspections
• DCC — Direct Channel Complex
• IFEO — International Flight Engineers Organisation
• FMP — Field Maintenance Party
• MDL — Multipurpose Data Link
• SSA — System Safety Approach
• PMC — Project Management Cell
• TNA — Turn Altitude
• MSS — Message Storage System
• RC — Radar Controller
• PED — Personal Electronic Devices
• PED — Passenger Electronic Devices
• OFFPDR — Off Predetermined Route
• SEOTV — Sindicato Espanol de Oficiales Tecnicos de Vuelo
• RMLR — RML Repeater
• GLS — Gearless
• MAD — Model of Activity for Design
• MTPA — Mobile Transponder Performance Analyser
• MRM — Maintenance Returned Monitoring
• LFME — Local Flow Management Enhancements
• RRWSS — RWDS Sensor Site
• AR — Administrative Recommendation
• RCLR — Recleared

• IRMA — Intermediate Redesigned MCC Architecture
• SMF — Systems Management Facility
• FMI — Frequency Management Issues
• SAPA — Swazi Air Line Pilots Association
• NSRCATN — National Strategy to Reduce Congestion on America's Transportation Network
• OSI — Open Sytem Interconnection
• O21 — Ocean21
• TITLE — Message Name
• SHORAN — Short Range Navigation
• MSD — Multi-Site Damage
• MF — Middle Frequency
• TCT — Technical Control Terminal
• PROSAT — Program Satellite
• PRIF — PROC Interface Tool
• TSD — Time Sequence Diagram
• FCT — Federal Contract Tower
• OE — Obstacle Evaluation
• OFIR — Oceanic FIR
• RTF — Radiotelephony
• ROSA — REPORT OF SERVICE ACTIVITY
• TARAD — Tracking Asynchronous Radar Data
• CRM — Collision Risk Methodology
• PPR — Personal Property Report
• PIM — Programme Implementation Management
• MBA — Microburst Alert
• PFM — Pre-Flight Messages
• FCT — Friction Coefficient
• PBRF — Pilot Briefing
• CSTWRK — Cost Work
• RESYNCING — Resynchronizing
• ISO — Information System Owner
• NASDC — National Aviation Safety Data
• PLC — Planning Controller
• GIC — Geostationary Integrity Channel
• RAC — RUHR Assistant Controller
• RLNA — Requested Level Not Available
• MIR — Master Inspection Record
• THAIPA — Thai Pilots Association
• RCLT — RCL Terminal
• ITM — Intermediate Approach controller
• RCAS — Radio Coverage Analysis System
• OMG — Operational Monitoring Group
• SSO — STAR Support Office
• SIPAC — Sindicato Panameno de Aviadores Comerciales
• RGCSP — Review of General Concept of Separation Panel
• RLST — Revised List
• ROA — Record of Assistance
• OPS/AIR — Operations/Airworthiness
• EL/KYB — EL Keyboard
• NSD — Navigation System Database

• PROFI — Multinational Project Financing
• HD — Air Holland
• OFST — Lateral Offset Active Light
• RESTR — Restriction
• NPA — Notice of Proposed Amendments
• NFAX — National Facsimile Service
• MCF — Manning Calculation Formula
• SLOVALPA — Slovak Air Line Pilots Association
• SOC — Start of Climb
• MOCBITE — Maastricht Operational Computer Based
• LDM — Low dispersible material
• SIPACIP — Sindicato de Pilotos Aviadores Civiles del Paraguay
• SEL — Selcal code
• RTT — D-RVR Termination Message
• NFD — National Flight Database
• NAP — Needs Assessment Program
• TATCI — Tallinn ATC Improvement project
• SELREL — Selective Release
• SOL — Sector Outbound List
• ISS — Information Systems Security
• NDE — Node Processor
• LOC — Localizer Beam
• CASA — Controller Automated Spacing Aid
• GMT — Greenwich Meantime
• SPD — Speed Mode
• IC — Implementation Center
• EXSPEC — Exercise Specification
• FPS — Flight Plan Server
• MSF — Master Simulation Facility
• MTMA — Major TMA
• OST — Office of the Secretary of Transportation
• REG — Regulatory
• PMC — Project Materials Cumulative
• SALPA — Sudan Air Line Pilots Association
• NATCON — North Atlantic Concept
• CAPS — Computer Automated Profiling Systems
• PTS — Procedures Tracking System
• PDS — Proficiency Development Specialists
• IL — Israлl
• RT — Remote Transmitter
• OLDINA — OLNO, Diekirch, Nattenheim
• CYGLGN — Cyclogenesis
• MLA — ManeuverLimited Altitude
• EI — Air Lingus
• SUATMS — Single Unified ATM System
• TTP — TCAS II Transition Program
• STAR — StandardTerminal Arrival Route
• SEM — Semmerzake
• PIC — Principal Interexchange Carrier
• MIP — Multinational Information Production

• MIA — Minimum IFR Altitudes
• NIPT — National Infrastructure Planning Team
• SCA — Serbian Cockpit Association
• RSA — Radar Service Area
• TTF — Total Flights
• PAS — Project Assignment Sheet
• STEPCLB — StepClimb
• SEC — Strategic Event Coordination
• SFT — Simplified Fast Time Simulations
• PRR — Pilot Request, Route
• FLIREC — Flight Recorders
• RSC — Runway Service Conditions
• ITT — Invitation Property Rights
• TGS — Taxi Guidance System
• SRP — Selected Reference Point
• NPL — Night Plan
• OETS — Obstacle Evaluation Tracking System
• RBS — Radio Backup System
• RSURTF — RASS-S Upper Requirements TF
• STUD — Innovative studies
• RSO — Route per State Overflown
• FSA — First System Activation
• PEC — Pressure Error Correction
• SHANDAP — Shannon Data Processing
• STS — Support to States
• RJ — Roal Jordanian
• SA — Situation Awareness
• FMC — Frontline Managers Courses
• EA — Europe Airsports
• CO — Continetnal
• MOS — Military Operations Specialst
• FS — Flight Standards
• GP — Glidepath
• NOG-FSG — NOG Features Subgroup
• MCL — Middle Compass Locater
• PRC — EEC business area - support to performance review
• SC — Steering Committee
• TAT — Total AirTemperature
• SP — Surveillance Processing
• VD — Vertical Dispersal
• TB — Tellback
• RI — Route Intercept
• US — USAir
• TRL — Transition Level
• OAT — Outside AirTemperature
• LF — Later Filter
• EPS — Exercise Preparation Suite
• POP — Point-0f-Presence
• RSS — Remote Speaking System

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