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

• EDI — Electronic Data Interchange
• MIN/MAX — Minimum/Maximum
• ARINC 604 — Guidance For Design And Use Of built-In Test Equipment
• A-VDGS — Advanced-Visual Docking Guidance System
• MAN — Metropolitan Area Network
• DEC — Digital Equipment Corporation
• LRU — Line Replaceable Unit
• BSS 1/1 — Basis 1 Port to 1 Port
• TBD — To Be Determined
• JP — Japan
• EU — European Union (1994; formerly referred to as the EEC or EC)
• PPE — Personal Protective Equipment
• ACCUM — Accumulate
• ANOVA — Analysis of Variance (statistics)
• C102 (TSO) — Helicopter Radar Approach, Issued 04/02/84
• R B — Range and Bearing line
• GPS — Global Positioning System (ex-NAVSTAR)
• IRL — Republic Of Ireland
• B-RNAV — Basic Area Navigation
• NPV — Net Present Value {economics}
• DFAX — Digital Facsimile
• C/N0 — Carrier-to-Noise-Density Ratio
• GIS — Geographic Information System
• A-VASIS — Advanced Visual Approach Slope Indicator System
• A SMGCS — Advanced Surface Movement Guidance and Control Systems
• ACK — Acknowledge (telecommunications; Cf. NAK)
• WWW — World Wide Web
• DWAT — Deadweight
• DODAR — Diagnosis, Options, Decision, Assessment and Revision
• DOD — United States Department of Defense
• FDEDANRSAOCLONL — Freight Deemed Earned, Discountless And Non-Returnable Ship And Or Cargo Lost Or Not Lost
• OJT — On the Job Training
• BA FAIR — Braking action Fair
• O&M — Operation and Maintenance
• MOA — Memorandum Of Agreement
• FY — Fiscal Year
• NOTAMC — Notam Cancelling another Notam
• WAN — Wide Area Network
• IBM — International Business Machines Corporation
• ADP — Automated Data Processing
• WX — Weather
• X-BAND — The frequency range between 8000 and 12500 MHz
• FYI — For Your Information
• PDA — Personal Digital Assistant
• ARINC 422 — Guidance For Modification Status Indicators & Avionics Service Bulletins
• SMTP — Simple Mail Transfer Protocol
• EEO — Equal Employment Opportunity
• Q.23 — Signalling system for PABX
• BA NIL — Braking Action Nil
• ARPA — Advanced Research Projects Agency (made early internet)

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

• D-ATSU — A Downstream Air Traffic Services Unit
• CTR — Center
• CIO — Chief Information Officer
• D-OTIS — Data Link Operational Terminal Information Service
• DA/H — decision altitude/height
• CBT — Computer Based Training
• CAA NZ — Civil Aviation Authority of New Zealand
• VHF — Very High Frequency
• ALT — Alternate
• T-ATSU — Transferring ATS Unit
• ATA — Area Transportation Authority
• ATC — Air traffic control
• CAA PNG — Civil Aviation Authority of Papua New Guinea
• FAASTEAM — FAA Safety Team
• F&CM — Flow And Capacity Management
• OBTEX — Offboard Targeting Experiments
• SOP — Standard Operational Procedure
• OMB — Office of Management and Budget (U.S.)
• JAAC/JAA CE — JAA Committee
• FANOMOS — Flight track and Aircraft NOise Monitoring System
• ITU — International Telecommunication Union
• QOS — Quality of Service
• ERP — Emergency Response Plan
• CM — Centimeter
• R-ATSU — The Receiving Air Traffic Services Unit
• LTIOV — Latest Time Information of Value
• CONUS — Continental United States (48 Contiguous States and DC)
• T-CHANNEL — Time Division Multiple-Access Channel
• IFPRU — IFPS Responsible Unit
• D-TO NL — Derated Takeoff Engine Fan Speed
• XCOORD — Cancel Co-ordination
• MLS — Microwave Landing System
• AOG — Aircraft On Ground
• CAP — Civil Air Patrol
• MHZ — Megahertz (Megacycles Per Second)
• M-ADS — Modified Automatic Dependent Surveillance
• HIRL — High Intensity Runway Lights
• FAR — Federal Acquisition Regulation
• SMEQ — Subjective Mental Effort Questionnaire
• EXW — Ex Works
• XASM — Cancel Assume
• BAHAMAS ALPA — Bahamas Airline Pilots Association
• GNP — gross national product (economics)
• EAMG SSG — EAMG Systems Sub-Group
• ARINC 424 — Navigation System Data Base
• DAARWIN — Distributed ATM Architecture based on
• FAS — Free Alongside Ship
• I(FD) — MTI Improvement Factor
• V/TRK — Vertical Track
• RAARR — Radar Arrival

• M/ASI — Mach/Airspeed Indicator
• FAA — Federal Aviation Administration
• O-QAR — Optical Quick Access Recorder
• MIPS — Millions of Instructions Per Second
• UHF — Ultra High Frequency (300-3000 MHz; 1m-10cm)
• NAAPE — National Association of Aircraft Pilots and Engineers
• 2H — Second Half
• IMF — International Monetary Fund
• MSL — Mean Sea Level
• XCONF — Delete CONFlict
• QTY — Quantity
• MTTR — Mean Time To Repair
• XMITR — Transmitter
• SAN — Storage Area Network
• GALPA — Ghanaian Air Line Pilots Association
• EAD SGR — EAD Sub-Group
• C/S/S/N — Capacity/Safety/Security/Noise
• DAMFORDET — Damages for Detention
• SAAFEA — South African Airways Flight Engineers Association
• XOFF/PDR — Cancel Off Predetermined Route
• BPS — bits per second
• EEG — Electro-EncephaloGram
• PAQ — Position Analysis Questionnaire
• NATO — North Atlantic Treaty Organisation
• LNG — Liquefied Natural Gas
• VAFORIT — VAFOR Implementation
• LABSW — LABS Switch System
• AHRS — Attitude Heading Reference System
• P.ACCS — Pairs of ACCs
• HADAMARD — Multi-radar processing written in ADA
• ATA — Actual Time of Arrival
• RNG — Range
• PRI — Primary Rate Interface (ISDN)
• P.T.T — Push-to-Talk
• KARLDAP — Karlsruhe Automatic Data Processing and Display System
• LABSC — LABS GS-200 Computer
• IA/CC — Indirect Access/Common Control
• XFRQ — Cancel FreQuency message
• SAR — Search And Rescue
• ICAO — International Civil Aviation Organization
• C87A — Low Range Radar Altimeters, Issued 01/01
• LABSR — LABS Remote Equipment
• I/AFSS — International AFSS
• PALLAS — Phased Automation of the Hellenic ATC System
• HQ — Headquarters (HDQ Preferred)
• IA-5 — International Alphabet Number 5
• EGATS — Eurocontrol Guild of Air Traffic Services
• LVL — Level
• HALPA — Hellenic Air Line Pilots Association
• BAREBOAT CHTR. — Bareboat Charter

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

• TCP — Transmission Control Protocol
• NOAA — National Oceanic and Atmospheric Administration (US)
• CEP — Circular Error Probable
• QMS — Quality Management System
• LF — Low Frequency
• DDU — Delivery Duty Unpaid
• CUG — Closed User Group
• BRI — Basic Rate Interface
• EAPTU — Air Line Pilots Trade Union
• DBMS — Data Base Management System
• CDC — Computer Display Channel
• IATA — International Air Transport Association
• KW — Kilowatt (one thousand watts) (measurement)
• INFO — Information
• WT — Weight
• EIS — Environmental Impact Statement (US)
• HAZMAT — Hazardous Material
• KE — Kenya
• DML — Data Manipulation Language
• CASE — computer-automated software engineering
• PSTN — Public Switched Telephone Network
• FACUTL — Facility Utilization System
• PALS — Precision Approach Lighting System
• IAEA — International Atomic Energy Agency
• FOB — Free On Board
• IANSSC — IANS Steering Committee
• W — Watt
• ACFT — Aircraft
• AVG — Average Voltage Gain
• EADCOS — EAD Co-ordination Group
• COTS — Commercial Off the Shelf Software
• AAL — Above Aerodrome Level
• RISC — Reduced Instruction Set Computer
• IDP — Individual Development Plan
• AFCS — Automatic Flight Control System
• OPM — Office of Personnel Management
• NADSW — NADIN Switches
• DABRK — Daybreak
• DATALINK — Digitized Information Transfer (air/ground)
• BVR — Beyond Visual Range
• KHZ — kilohertz (1000 cycles per second)
• ATDNSHINC — Any Time Day/Night Sundays and Holidays Included
• UA — Ukraine
• ALT — Altitude
• DDE — Dynamic Data Exchange (in software parlance)
• EBCDIC — Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
• COOP — Continuity of Operations
• IR — Islamic Republic of Iran
• ASM — Available Seat Mile
• ELBA — Emergency Location Beacon-Aircraft

• BCR — Benefit/Cost Ratio
• BW — Bandwidth
• APR — April River Airport, April River, Papua New Guinea
• CHOPT — Charterers Option
• CISO — Chief Information Security Officer
• AOR — Area of Responsibility. The assigned area to any given unit.
• DMA — direct memory access (computer term)
• HDLTSBENDS — Half Despatch Lay Time Saved Both Ends
• ETD — Estimated Time of Departure
• Q&A — Question & Answer
• CAF — Currency Adjustment Factor
• ATHWARTSHIPS — At right angles to the centreline of the ship
• BAF — Belgian Air Force
• ACPT — Accept
• EU-OPS — EASA Operations Regulations
• CM — Configuration Management
• ATCRBS — Air Traffic Control Radar Beacon System
• FDP/RDP — Flight Data Processing/Radar Data Processing
• IWL — Institute Warranty Limits
• PRE-OJT — Pre-On-the-Job Training
• MIL — Military
• CW — Continuous Wave
• CAA — Civil Aviation Authority
• IM — Information Management
• COS — Chief of Staff
• GPO — Government Printing Office
• SAE — Society of Automotive Engineers
• CIF — Cost, Insurance, Freight
• NEG — NEGative
• EG — Egypt
• GE — Georgia
• CFR — Cost and Freight
• CZ — Czech Republic
• AED — Automated external defibrillator
• NM — Nautical Mile
• TV — Television
• FLT — Full Liner Terms
• TTL — Transistor-Transistor Logic
• MBO — Management by Objective
• MAINT — Maintenance
• CQD — Customary Quick Despatch
• PBX — Private Branch eXchange (company phone system)
• LAT — Latitude
• CAT — Category (e.g. CAT-5 cable)
• OSI — Open Systems Interconnection (iso Standard)
• LADGPS — Local Area Differential Global Positioning System
• RCR — Runway Condition Reading
• GEN — General Motors
• EPROM — Erasable Programmable Read-Only Memory
• CPT — Carriage Paid To

• ETS — Estimated Time of Sailing
• COGSA — U.S. Carriage of Goods by Sea Act
• DK — Deck
• AMSL — Above Mean Sea Level
• MTTF — Mean Time To Failure
• RMS — root mean square (preferred over "RMS")
• AGW — All Going Well
• COTR — Contracting Officer Technical Representative
• CG — Center of Gravity (DXS)
• BOD — Beneficial Occupancy Date
• IFB — Invitation For Bid
• DR — Disaster Recovery
• L/C — Letter of Credit
• EXPLT — Extrapolate
• N — North
• DME — Distance Measuring Equipment
• LOI — Letter of Indemnity
• LDAP — Lightweight Directory Access Protocol (pronounced Ell-dap)
• DES — Delivered Ex Ship
• AC — Air Canada
• KM — Kilometer (1,000 meters)
• ARINC 753 — HF Data Link System
• FDD — Freight Demurrage Deadfreight
• AE — Application Entity
• AFB — Air Force Base (USAF)
• LEO — Low Earth Orbit (satellite communications)
• C — Centigrade
• USAF — United States Air Force
• TSTMS — Thunderstorms
• MODEM — Modulator-Demodulator
• EMP — Electromagnetic Pulse
• IS — Iceland
• UPU — Universal Postal Union
• RSPL — Recommended Spare Parts List
• VCRI — Verification Cross Reference Index
• MBPS — Megabits per second
• CNEE — Consignee
• SVC — Service
• OUTB — Outbound
• S — South
• COA — Contract Of Affreightment
• NRL — Naval Research Laboratory
• PCM — Pulse-Code Modulation
• CU — Control Unit
• SALS — Short Approach Lighting System
• EFTA — European Free Trade Association (Geneva)
• POS INIT — Position Initialization
• CAVU — Ceiling And Visibility Unlimited
• CPD — Continuous Professional Development
• ASR — Airport Surveillance Radar

• AO — Authorizing Official
• ACMS — Aircraft Condition Monitoring System
• SMS — Safety Management Systems
• SCADA — Supervisory Control And Data Aquisition
• MK — Republic of Macedonia
• MMU — Memory Management Unit
• HF — High Frequency
• DDP — Delivered Duty Paid
• ETC — Estimated Time of Completion
• HUMS — Health and usage monitoring systems
• IR — Iran Air
• EGA — Enhanced Graphics Adapter
• ACD — Automatic Call Distributor
• DEBRIEF — Debriefing
• 1 PPS — One Pulse Per Second
• BY — Belarus
• DOS — United States Department of State
• EXTRM — Extreme
• ITIL — Information Technology Infrastructure Library
• CAT — Computer Aided Testing
• TEMP — Temperature
• ALSTG — Altimeter Setting
• ELINT — Electronic Intelligence Satellite
• LEC — Local Exchange Carrier
• 16PF — Sixteen Personality Factor Questionnaire
• PDN — Public Data Network
• MIT — Massachusetts Institute of Technology (U.S.)
• HU — Hungary
• CLR — Clear
• TC/OC — Technical Control and Operational Control
• NOR — Notice of Readiness
• D-ATIS — Digital - Automatic Terminal Information Service
• DHDATSBE — Despatch Half Demurrage on All Time Saved Both Ends
• ALSF-2 — High Intensity Approach Lighting Systerm with Sequenced Flashing Lights.
• CMO — Certificate Management Office
• DRP — Disaster Recovery Plan
• FIM — Fault Isolation Manual
• PER SE — By Itself
• FAC — Facilities
• DPI — Dots per inch.
• LOCID — Location Identifier
• P&I — Protection and Indemnity insurance
• EST — Estimated Starting Time
• SNR — Signal-to-Noise Ratio
• ENG — Engine
• AFA — Association of Flight Attendants
• RFQ — Request For Quote
• PDPR — Per Day Pro Rata
• MTBCF — Mean Time Between Critical Failures
• CPIC — Capital Planning and Investment Control

• EPR — Engine Pressure Ratio
• FAA — Federal Aviation Authority
• CGL — Circling Guidance Light
• DVOF — Digital Vertical Obstruction File
• BAF — Bunker Adjustment Factor
• APAPI — Abbreviated Precision Approach Path Indicator
• GHZ — Gigahertz
• ADDENDUM — Additional chartering terms at the end of a charter party
• FT — Feet
• IDS — Intrusion Detection System
• NESDIS — National Environmental Satellite, Data, and Information Service
• ADSY — Administrative Equipment Systems
• OO — SkyWest Airlines
• SWIM — System Wide Information Management
• L — Left
• WG — Working Group
• REQ — Request
• ARINC 743 — Airborne Global Positioning System Receiver
• CONOPS — Concept of Operations
• POS — Position
• BELOW — Beneath the deck
• EXER — Exercise
• A/D — Analog-to-Digital
• TX / RX — Transmitter / Receiver
• MAN — Manual
• ARINC 542 — Airborne Oscillograph Flight Data Recorder
• PCT — Percent
• IFTO — International Federation of Tour Operators
• DEC — December
• RVR — Runway Visual Range
• APS — Arrival Pilot Station
• ADCCP — Advanced Data Communications Control Procedures
• EMS — Environmental Management Systems
• MCE — Management Centre Europe
• MSA — Minimum Safe Altitude
• PRN CODE — Pseudo Random Noise Code
• HDLC — High-Level Data Link Control
• WO — Without
• 2D — Two-Dimensional
• TOR — terms of reference (ICAO/FAA)
• DEQ — Delivered Ex Quay (shipping)
• CDU — Control Display Unit
• CDB — Corporate Database
• DIST — Distance
• CN — Change Notice
• IF — Intermediate Frequency
• AA — Always Afloat
• XFR — Transfer
• AIXM — Aeronautical Information Exchange Model
• BM — Beam

• RLLS — Runway Lead-In Light System
• SNGL — Single
• CRS — Course
• RCM — Requirements Correlation Matrix
• CRF — Central Repair Facility
• WAC — World Aeronautical Chart
• IPT — Integrated Product Team
• CKD — Completely Knocked Down
• PKI — Public Key Infrastructure (cryptography)
• DHS — Department of Human Services
• E — East
• CCSD — command communications service designator; control communications service designator
• EHF — Extremely High Frequency
• RESA — Runway End Safety Area
• DOLSP — Dropping Off Last Sea Pilot
• FD — Flight Director
• A/C — Aircraft
• NOTAMN — New Notam
• ARINC 419 — Digital Data System Compendium
• AOCS — Attitude and Orbit Control System
• TTY — Teletype Telex Machine
• HWCI — Hardware Configuration Item
• PRF — Pulse Repetition Frequency
• IFF — Identification Friend or Foe (radar)
• FAR — Federal Aviation Regulation
• BL — Bale
• MRC — Monthly Recurring Charge
• ADS-C — Automatic Dependent Surveillance-Contract
• FD — Free Discharge
• EIB — European Investment Bank
• CY — Cyprus Airways Ltd
• STTR — Small Business Technology Transfer
• FEC — Forward Error Correction
• GSE — Ground Support Equipment
• LIDAR — Lander Light Detection and Ranging
• AAAA — Always Accessible Always Afloat
• AEW — Airborne Early Warning
• LIDO — Lufthansa Integrated Dispatch Operation
• ARINC 561 — Air Transport Inertial Navigation System - INS
• CW — Carrier Wave
• OPI — Office of Primary Interest
• KBPS — kilobits per second
• COBT — Calculated Off Block Time
• AVMED — Aviation Medicine
• TDMA — Time Division Multiple Access
• QUIS — Questionnaire for User Interface Satisfaction
• DDD — Detailed Design Document
• CI — China Airlines - Taiwan
• DTED — Digital Terrain Elevation Data (dee-ted)
• EAS — Equivalent Airspeed

• ADF — Automatic Direction Finder
• AFSPS — Arrival First Sea Pilot Station
• LOA — Length Overall
• LUX — Findel International Airport, Luxembourg-Findel, Luxembourg
• BDI — Both Dates Inclusive
• ANG — Air National Guard
• EW — Eurowings
• HUM RES — Human Resources
• RTE — Route
• NEPA — National Energy Policy Act of 1992
• A&E — Architecture and Engineering
• PABX — private automatic branch exchange (telephone)
• GSFC — Goddard Space Flight Center (Greenbelt, MD)
• NPRM — Notice Of Proposed Rule Making
• RCU — Remote Control Unit
• CDL — Configuration Deviation List
• PAR — Precision Approach Radar
• FMC — Federal Maritime Commission's
• RDF — Radio Direction Finder
• SEQ — Sequence
• DAFIF — Digital Aeronautical Flight Information File
• FOD — Foreign Object Damage
• CW — Clockwise
• ADC — Air Defense Command
• NAAQS — National Ambient Air Quality Standards (US)
• ARINC 429 — Mark 33 Digital Information Transfer System
• NASA — National Aeronautics and Space Administration (US)
• AOM — Aircraft Operating Manual
• F — Degrees Fahrenheit
• ETE — Estimated Time En Route
• IRU — Inertial Reference Unit
• ERP — Effective Radiated Power
• DEA — Drug Enforcement Agency
• FEP — Front End Processor
• DRAUGHT — Depth to which a ship is immersed in water
• PMP — Project Management Plan
• TOT — Total
• AUG — August
• ATFM — air traffic flow management
• ELT — Emergency Locator Transmitter
• ETO — Estimated Time Over
• SHF — Super High Frequency
• AT&T CSA — At&t Customer Support Associate
• NOV — November
• RDP — Radar Data Processing
• NFPA — National Fire Protection Association
• NCS — National Communications System
• PQP — Project Quality Plan
• ITSM — Information Technology Service Management
• ACARS — Aircraft Communications Addressing and Reporting System

• ITF — International Transport Workers' Federation
• TK — Turkish Airlines
• ARINC 597 — Aircraft Communications Addressing And Reporting System
• ATD — Actual Time of Departure
• ITMRA — Information Technology Management Reform Act (Part of the Clinger-Cohen Act)
• NACA — National Advisory Committee for Aeronautics
• CPS — characters per second
• ANS — Answer
• CX — Cathay Pacific Airways
• EBU — Engine Build Unit
• EFQM — European Foundation for Quality Management's
• EVM — Earned Value Management
• CMC — Central Maintenance Computer
• RMS ERROR — Root Mean Square error.
• FLT — Flight
• LF — Load Factor
• BOC — Bell Operating Company
• NW — Northwest Airlines
• AIRNAV — Airports and Navigation Aids Database System
• DHDWTSBE — Despatch Half Demurrage on Working Time Saved Both Ends
• FRS — Functional Requirements Specifications
• MSDA — Material Safety Data Sheet
• OU — Croatia Airlines
• ARINC 743A — GPS/GLONASS Sensor
• ABV — Above
• FO — For Orders
• DIR — Directory
• NTE — Not-To-Exceed
• ATMAC — Air Traffic Management Advisory Committee
• BRK — Break
• LT — Liner Terms
• SRV — Server
• FOUO — For Official Use Only
• ID — IDentifier
• CPD — Charterers Pay Dues
• 3D — Three Dimensional
• CRM — Crew Resource Management
• TBO — Time Between Overhaul
• JAN — January
• JCN — Job Control Number
• ADDS — Aviation Digital Data Service
• RMNDR — Reminder
• R — Right
• SBIR — Small Business Innovation Research
• ARINC 408A — Air Transport Indicator Cases And Mounting
• V — Volt (measurement)
• DCE — Data Communication Equipment
• DID — direct inward dial
• LY — El Al Israel Airlines
• WPM — speech--words per minute

• TLV — Type-Length-Value
• AY — Finnair, Oyj - Finland
• CEQ — Council on Environmental Quality (U.S.)
• PAPI — Precision Approach Path Indicator (aviation)
• AUTOVON — Automatic Voice Network
• MCW — Modulated Continuous Wave
• YD — Yaw Damper
• CAT X — Category x Precision Approach
• AD — airworthiness directives (FAA)
• BIT(E) — Built-ln-Test (Equipment)
• CDI — Course Deviation Indicator
• HDOP — Horizontal Dilution of Precision
• ADZY — Advisory
• NWS — National Weather Service (formerly U.S. Weather Bureau)
• KE — Korean Airlines
• MAG — Magnetic
• CCU — Central Control Unit
• QPSK — aeronautical quadrature phase shift keying
• CONS — consumption
• GOES — Geostationary Operational Environmental Satellite
• AWACS — Airborne Warning And Control System
• GFE — Government-Furnished Equipment
• AAIM — Aircraft Autonomous Integrity Monitoring
• SDLC — Software development life cycle
• HMI — Human Machine Interface
• A/A — Air-to-Air
• RTOS — Real-Time Operating System
• RSVN — Reservation
• AVAIL — Available
• OCT — October
• FCL — Full Container Load
• AF — Air France
• BRG — Bearing
• DFDAU — Digital Flight Data Acquisition Unit
• ARINC 747 — Flight Data Recorder
• DEM — German mark
• MDT — Mean Down Time
• AEA — Association of European Airlines
• ACT — Active
• ASD — Aircraft Situation Display
• SN — Brussels Airlines
• CVR — Cockpit Voice Recorder
• RAIM — Receiver Autonomous Integrity Monitoring
• OVERBOARD — Over the side or out of the ship
• Z — Zulu (Greenwich mean time)
• T — Time
• FOFFER — Firm Offer
• RNP5 — Required Navigation Performance 5
• DEIS — Draft Environmental Impact Statement (US)
• ADIRS — Air Data Inertial Reference System

• GW — Gross Weight
• DOP — Dropping Outward Pilot
• AOM — Aircraft Operations Manual
• MDA — Minimum Descent Altitude
• PII — Personally Identifiable Information
• PERF — Performance
• BWAD — Brackish Water Arrival Draft
• CGL — Circling Guidance Lights
• FEIS — Final Environmental impact statement (US)
• W — West
• DAF — Deliver At Frontier
• FOT — Free On Truck
• FRB — Failure Review Board
• ACN — Aircraft Classification Number
• CCITT — Comite Consultatif International de Telegraphique et Telephonique (International Telegraph and Telephone Consultative Committee) [now ITU-T]
• AIP — Aeronautical Information Publication
• EFMS — Experimental Flight Management System
• ISA — International Standard Atmosphere
• PPI — Plan Position Indicator
• OT&E — Operational Test and Evaluation
• SEP — September
• DNRCAOSLONL — Discountless and Non-Returnable Cargo and/or Ship Lost or Not Lost
• CAVOK — Ceiling And Visibility OK (Kav-okay)
• AHL — Australian Hold Ladders
• AWB — Air Waybill
• RNP — Required Navigation Performance
• ARINC 573 — Aircraft Integrated Data System Mark
• EXEC — Execute
• IPV6 — Internet Protocol Version 6
• BR — Eva Airways Corporation
• GPRA — Government Performance and Results Act
• IFOR — Implementation Force
• OGC — Open Geospatial Consortium
• SAW — Surface Acoustic Wave
• HUD — Head-Up Display
• AFS — Aeronautical Fixed Service
• NOTAM — Notice to Airmen
• FDOD — CFMU – Flight Data Operations Division
• ARINC 575 — Mark 3 Subsonic Air Data System
• ALQDS — All Quadrants
• LH — Lufthansa German Airlines
• ILO — International Labour Organisation
• VAN — Value Added Network
• VSWR — Voltage Standing Wave Ratio
• DOI — United States Department of Interior
• 1 :1 — One-to-one relationship
• WOCL — Window of Circadian Low
• AUTOCAD — Automatic Computer Aided Design
• EIA — Extended Interaction Amplifier
• SP — Space

• TGT — Target
• DDS — Digital Data Service
• A02 — Automated Observation With Precipitation Discriminator
• DGNSS — Differential Global Navigation Satellite System
• EADI — Electronic Attitude Director Indicator
• INS — Inertial Navigation System
• BROB — Bunkers Remaining on Board
• NRT — Net Restricted Tonnage
• GDOP — Geometric Dilution Of Precision
• DH — Decision Height
• ADCOM — Address Commission
• XEU — European Currency Unit
• UL — Uplink
• DDM — Difference in Depth of Modulation
• DEL — Delete
• ARTCC — Air Route Traffic Control Center
• BL — Blowing (METAR descriptor)
• FSRM — Facility Security Risk Management
• FONSI — Finding of no significant impact. See Environmental impact statement (US)
• HGT — Height
• IMA — Integrated Modular Avionics
• OTFO — Operations Technical Field Office
• C — Close
• VMC — visual meteorological conditions
• PRKG — Parking
• EASA — European Aviation Safety Agency
• HG — Mercury (Latin Hydrargyrum)
• WO — World Airways, Inc
• SU — Aeroflot Russian Airlines
• MIRL — Medium Intensity Runway Lights
• FP — Flight Plan
• ACCT — Accounting Records
• IN.HG. — inches of mercury
• A/P — Autopilot
• GML — Geography Markup Language
• A/S — Alongside
• DCA — Defensive Counter Air
• ARO — Air Traffic Services Reporting Office
• MAA — Maximum Authorized Altitude
• AOB — Air Order of Battle
• ARINC 603 — Airborne Computer Data Loader
• ARINC — Aeronautical Radio Incorporated
• MDO — Marine Diesel Oil
• VSCF — Variable-Speed Constant Frequency
• SSR — Software Specification Review
• BOFFER — Best Offer
• ARPA — Advanced Research Project Agency's
• ADIZ — Air Defense Identification Zone
• MECO — Main Engine Cutoff
• DBS — Direct Broadcast Satellite

• EST — Estimated Ship Time
• ATE — Automatic Test Engineer
• MEL — Minimum Equipment List
• OK — Czech Airlines
• A/C — Aircraft Commander
• EDF — Electricité de France
• A&P — Airframe & Powerplant
• FANS — Future Air Navigation System
• NAVDB — Navigation Data Base
• RPV — Remotely Piloted Vehicle
• FADEC — Full Authority Digital Engine Control
• EET — Estimated Elapsed Time
• RDIF — Radar Data Interchange Format
• LW — Low Water
• ASI — Air Speed Indicator
• CAP — Combat Air Patrol
• RM — Risk Management
• ILS — Instituteument Landing System
• CPDLC — Controller Pilot Data Link Communications
• PHA — Preliminary Hazard Analysis
• SH — Showers
• MOLOO — More or Less Owners Option
• CD — Candela
• CFAR — Constant False Alarm Rate
• BOB — Bunker On Board
• NCAR — National Center for Atmospheric Research (US)
• DA — Disbursement Account
• CHTRS — Charterers
• LZ — Balkan Bulgarian Airlines
• CBI — Computer Based Instruction
• FREE EXINS — Free of any Extra Insurance
• RFC — Request For Change
• SARPS — Standards and Recommended Practices
• CCIR — International Radio Consultative Committee (French Acronym)
• ACM — Airspace Control Measures
• CSD — Constant Speed Drive
• AD — Aerodrome
• ANSP — Air Navigation Service Provider
• NAS — National Airspace System
• DEM — Demurrage
• FACF — Final Approach Course Fix
• CAASA — Commercial Aviation Association of Southern Africa
• FZRA — Freezing Rain (METAR Code)
• TCU — Towering Cumulus
• ARINC 557 — Airborne Voice Recorder
• CIRM — International Radio Maritime Committee
• CVSM — Conventional Vertical Separation Minimum
• VCO — Voltage Controlled Oscillator (Oscillation)
• ACU — Antenna Control Unit
• NTZ — No Transgression Zone

• DEG — Degree
• BADA — Base of Aircraft Data ; Aircraft performance Data
• UT — Universal Time
• IG — Inspector General (HHS)
• BENDS — Both Ends (shipping)
• SID — Standard Instrument Departure
• MLW — Maximum Landing Weight
• AWIPS — Advanced weather Interactive Processing System (NOAA)
• TBS — To Be Supplied(by government)
• BA — Braking Action
• FZFG — Freezing Fog
• ECAM — Electronic Centralized Aircraft Monitor
• ARINC 421 — Guidance For Standard Subdivision of ATA Spec 100 Numbering System for Avionics
• BOW — The forward part of a ship
• NPR — National Performance Review (office)
• DR — Dead Reckoning
• OWS — Owners
• ARINC 542A — Digital Flight Data Recorder
• AFSS — Automated Flight Service Station
• HO — Hold Over
• AIDC — Air traffic control Inter-Facility Ground Data Communications
• AVBL — available
• SAC — Strategic Air Command
• AFFSC (E) — Air Forces Flight Safety Committee (Europe)
• J2EE — Java 2 Enterprise Edition
• CROB — Cargo Remaining on Board
• W — White
• CLD — Cloud
• DNIC — Data Network Identification Code
• COACP — Contract Of Affreightment Charter Party
• DETRESFA — distress phase (lCAO)
• ASTERIX — All-purpose Structured Eurocontrol Radar Information Exchange
• COV — Cover
• SS 30 — 30 Minutes after Sunset
• HDG — Heading
• WP — Work Package
• ALP — Airport Layout Plan
• NRZ — Non-Return-To-Zero
• AQP — Advanced Qualification Program
• CUST — Customs
• OP — Operational
• SV — Space Vehicle
• PFD — Primary Flight Display
• PROC — Procedure
• DITCO — Defense Information Technology Contracting Office (formerly DECCO)
• AOC — Airline Operation Control
• MRA — Minimum Reception Altitude
• GS — Ground Speed
• 8.33 STATE — A State initially implementing 8.33 kHz channel spacing
• EQPT — Equipment

• WGS 84 — World Geodetic System 1984
• ARINC 591 — Quick Access Recorder For Aids System
• DPSK — Differential Phase Shift Keying
• FIS — Flight Information Service
• PSN — Packet Switched Network
• ARINC 740 — Multiple-Input Cockpit Printer
• NAS — National Aircraft Standard
• BSC — Binary Synchronous Communication
• ARINC 571 — Inertial Reference System
• FMC — Flight Management Computer
• LIM — Limit
• MOD — Modified
• AP — Airport
• FRG — Federal Republic of Germany's
• NAABSA — Not Always Afloat But Safely Aground
• PA — Pan American Airways
• HIRO — High Intensity Runway Operation
• FSS — Flight Service Station
• HVAC — Heating, Ventilating, And Air Conditioning
• FL — Flight Level
• HMI — Hazardously Misleading Information
• OL — Operating Location
• ARINC 566 — Airborne VHF Communications Transceiver And Mark 1 VHF SATCOM System
• IRS — Inertial Reference System
• POL STAT — Policy Statement
• FRT — Freight
• B — Blue
• AVOL — aerodrome visibility operational level
• TDD — Time Division Duplex
• AACO — Arab Air Carriers Organisation
• THR — Thrust
• LLWAS — Low Level Wind Shear Alert System
• ADV — Advise
• EEI — Essential Elements of Information
• HOV — High Occupancy Vehicle
• ISMLS — Interim Standard Microwave Landing System
• ARINC 601 — Control/Display Interfaces
• AC — Altocumulus
• CART — Classification And Regression Tree (method In Statistical Analysis)
• CDT — Command Delivery Time
• ARINC 572 — Mark 2 Air Traffic Control Transponder
• HIWAS — Hazardous Inflight Weather Advisory Service
• SSALS — Simplified Short Approach Lighting Systerm
• PREV — Previous
• FIOS — Free In/Out Stowed
• HEX — Hexadecimal (base 16)
• ECS — Environmental Control System (Subsystem)
• FYG — For Your Guidance
• IFR — Instrument Flight Rules
• TCA — Terminal Control Area

• GA — General Aviation
• GCA — Ground-controlled approach
• FLAS — Flight Level Allocation Scheme
• CDRL — Contracts Data Requirements List
• CAB — Civil Aeronautics Board
• NSAP — Network Service Access Point
• JUL — July
• ULR — Ultra Long Range
• VCCS — Voice Communication and Control System
• GBAS — Ground Based Augmentation System
• ALSF2 — ALS with Sequenced Flashers II
• ND — Navigation Display
• RSYD — Release Subject to Your Discretion
• NPS — Navigation Performance Scales
• FZDZ — Freezing Drizzle
• JAN — January
• BT — berth terms
• ACSE — Application Control Service Element
• FREQ — Frequency
• FQR — Formal Qualification Review
• FRA — Federal Railroad Administration
• HIRTA — High Intensity Radio Transmission Area
• BCA — Benefit/Cost Analysis
• LRU — Line Replacement Unit
• ACI — Airports Council International
• AIRPROX — The code word used in air traffic incident report to designate aircraft proximity
• NI — Network Interface
• JD TF — Job Description Task Force
• TYPH — Typhoon
• TAS — True Airspeed
• LGT — Light
• LT — Long Ton
• ECAC — European Civil Aviation Conference
• SIP — State Implementation Plan
• CAS — Close Air Support
• CTA/FIR — Control Area/Flight Information Region
• ACAIS — Air Carrier Activity Information System
• GS — Glide Slope
• IMC — Instrument Meteorological Conditions
• CFDS — Centralised Fault Display System
• MTTRP — Mean Time to repair product
• LSA — Lysergic Acid Amide
• ADZD — Advised
• EPCU — Electrical Power Control Unit
• NSSL — National Severe Storms Laboratory
• DEM — Digital Elevation Model
• SLEP — Service Life Extension Program
• LGTD — Lighted
• VTS — Vessel Traffic Service
• FST — First

• 1 :M — One-to-Many relationship
• 4D FMS — 4D Flight Management System
• LOFT — Line-Oriented Flight Training
• OBO — Ore/Bulk/Oil vessel
• CR — Current Rate
• ANTHAM — Antwerp-Hamburg Range
• ARINC 757 — Cockpit Voice Recorder
• ATUTC — Actual Times Used to Count
• ODALS — Omnidirectional Approach Lighting Systems
• LAAS — Local Area Augmentation System
• ALERFA — alert phase
• CAS — Calibrated Air Speed
• NORDO — No-Radio
• QUAD — Quadrant
• ATLA — Air Transport Licensing Authority
• WHO — World Health Organisation
• OO — Owners Option
• ASYNC — Asynchronous
• LATA — Local Access and Transport Area
• RNP-10 — Required Navigation Performance
• ATCSCC — Air Traffic Control System Command Center
• SSEC — Static Source Error Correction
• SVID — System V Interface Definition
• IU — If Used
• CDM — Collaborative Decision Making
• ARINC 606 — Guidance For Electrostatic Sensitive Device Utilisation & Protection, Sup. 1
• VMIN — Basic Clean Aircraft Minimum CAS
• COTP — Connection-Oriented Transport Protocol
• CNL — Cancel
• CARSR — Common Air Route Surveillance Radar
• CPE — Customer Premise Equipment
• ARINC 559A — Mark 2 Airborne HF SSB/AM System
• FF — Fuel Flow
• FSK — Frequency Shift Keying
• RIB — Routing Information Base
• ARTS — Automated Radar Terminal System
• NAT NAM — North Atlantic / North America
• FIW — Free in wagon
• IRM — information resource management
• PUP — Principal User Processor (NEXRAD)
• CAEM — Commission for Aeronautical Meteorology (WMO)
• ANA — All Nippon Airways
• SSR — secondary surveillance radar (ICAO/FAA)
• 5LNC — Five Letter Name Code
• CTR — Container Fitted
• FLTCK — Flight Check
• HZ — Haze (METAR Code)
• GRT — Gross Registered Tonnage/Tons
• UTC — Universal Time Coordinate
• AILS — Automatic Instrument Landing System

• CAT — Clear Air Turbulence
• MTBR — Mean Time Between Replacement
• VGND — Ground Velocity
• NDI — Nondestructive Inspection
• NR. — Number
• DL — Downlink Message
• FPM — Feet Per Minute
• CON — Continuous
• PJMM — Project Management Methodology
• TLOF — Touchdown and Lift-off Area
• SITA — Société Internationale de Télécommunications Aéronautiques
• FEB — February
• ASDE-X — Airport Surface Detection Equipment - X (frequency) band
• ANC — Air Navigation Commission
• FFA — Functional Failure Analysis
• FHA — Functional Hazard Analysis
• MNM — Minimum
• ACNZ — Airways Corporation of New Zealand Ltd
• JUN — June
• ACH — Air traffic control Flight Plan Change
• EXTD — Extend
• CRZ — Cruise
• NASTEP — National Airspace System Technical Evaluation Program
• C&A — Certification and Accreditation
• ARINC 750 — VHF Data Radio
• ODS — Operational Data Store (knowledge management)
• NP — Propeller speed
• ATC-HMI — Air Traffic Control Human Machine Interface
• NEC — National Electric Code
• DBE — Disadvantaged Business Enterprise
• FOQ — Free On Quay
• DA — Decision Altitude
• HSI — Horizontal Situation Indicator
• MVFR — Marginal Visual Flight Rules
• FIR — Flight Information Region
• ALT HOLD — Altitude Hold Mode
• SDIS — Switched Digital Integrated Service
• AITS — Automated Inventory Tracking System
• HALO — High Altitude, Low Opening (skydiving term)
• VSBY — Visibility
• MCT — Maximum Continuous Thrust
• MCA — Minimum Crossing Altitude
• WAAS — Wide Area Augmentation System
• CMIP — Common Management Information Protocol (ATM)
• ARAG — Amsterdam Rotterdam Antwerp Gent Range
• MMEL — Master Minimum Equipment List
• CLC — Course Line Computer
• ADVCTN — Advection
• CASA — Civil Aviation Safety Authority
• AT — Air Transport

• AIRAC — Aeronautical Information Regulation and Control
• TMU — Traffic Management Unit
• RUC — Rapid Update Cycle
• V — Velocity
• HAT — Height Above Touchdown
• FDR — Flight Data Recorder
• CDTI — Cockpit display of traffic information
• ADVY — Advisory
• ARINC 596 — Mark 2 Airborne SELCAL System
• MSSR — Monopulse Secondary Surveillance Radar
• NOSIG — No Significant Change
• ILSP — Integrated Logistics Support Plan/Program
• DTS — Dedicated Transmission Service
• SGS 85 — Sovietic Geodetic System
• DES — Descent
• ATSU — Air Traffic Services Unit
• AMT — Aviation Maintenance Technician
• IISLS — Improved Interrogation Side Lobe Suppression
• TSU — Technical Support Unit
• SSAP — Source Service Access Point
• SARSAT — Search and Rescue Satellite
• ARINC 579 — Airborne VOR Receiver
• FPL — Full Performance Level
• ALS — approach lighting system
• MM — Middle Marker
• ADF — Automatic Direction Finding
• LCN — Load Classification Number
• NIMA — National Imagery and Mapping Agency (became National Geospatial-Intelligence Agency|NGA)
• BIM — Building Information Model
• SUP — Supervisor
• BI — Both inclusive
• COB — Closing of Business
• JPDA — Joint Probabilistic Data Association
• CST — Centistoke
• PFN — Pulse-Forming-Network
• RWY — Runway
• RNAV — Random Navigation Area Navigation
• VDF — Very high frequency Direction Finding station
• BYD — Beyond
• SUA — Special-Use Airspace
• TCAS — Traffic Collision Avoidance System
• AOV — Air Traffic Safety Oversight Service
• FEW — Few
• FILO — Free In/Liner Out
• ALTRV — Altitude Reservation
• AAA — Amended meteorological message
• NMC — National Meteorological Center (US)
• DOC — Document
• ASN — Advance Shipment Notice
• ABAS — Aircraft-based Augmentation System

• PAMPLAY — PAM rePLAY system
• ATAF — Allied Tactical Air Force (NATO)
• PF — Pilot Flying
• ACCID — Notification of an aircraft accident
• BASE AM — Base Arrival Manager
• ALSF — Approach Lighting System With Sequenced Flashing Lights
• AACC — Airport Associations Co-ordinating Council
• DP — Dewpoint Temperatue
• FCA — Free Carrier Alongside
• ARR — Arrive
• PIREP — Pilot (weather) Report
• LON — Longitude
• A/H — Altitude/Height
• TMA — Traffic Management Advisor
• GCU — Generator Control Unit
• ATSAP — Air Traffic Safety Action Program
• LDI — Landing Direction Indicator
• RTLS — Return To Launch Site
• LDG — Landing (aviation)
• VASI — Visual Approach Slope Indicator
• ELVENT — Electric Ventilation
• WINDR — Wind Direction
• ADA — Advisory Area
• TM — Traffic Management
• SGI — Silicon Graphics Incorporated
• AMA — Area Minimum Altitude
• DET — Detention
• JURG — Joint Users Requirements Group
• CD-ROM — Compact Disk - Read Only Memory
• DEA — Data Exchange Agreement
• AACO — Arab Air Carriers Organization
• CFI — Certified Flight Instructor
• ASPH — Asphalt
• WTSPT — Waterspout
• APRT — Airport
• AAP — Advanced Automation Program
• AWOS — Automated Weather Observing System
• CDT — Controlled Departure Time
• MNS — Mission Needs Statement
• V&V — Validation & Verification
• ATO — Air Traffic Organization
• PROF — Profile
• JMCT — Job Management Consultative Team [job analysis]
• LRNS — Long-Range Navigation System
• CRN — Crane
• STAR — Standard Terminal Arrival Route
• SUMI — Software Usability Measurement Inventory
• AUSEP — Australian RNAV Separation Standards
• MOC — Memorandum Of Cooperation
• CNCL — Cancel

• ARINC 404A — Air Transport Equipment Cases And Racking
• DAPS — Days all Purposes
• RAD — Radio
• SDP — Service Delivery Point
• VASIS — Visual Approach Slope Indicator System
• FA — Final Approach
• AFCAC — African Civil Aviation Commission
• MPO — Metropolitan Planning Organization
• AKARD — Available Knowledge And required system Research and Development
• MCP — Mode Control Panel
• ACCS — Air Command and Control System
• MTI — Moving Target Indicator
• AFIL — Air Filed Flight Plan
• DES — Descend
• LOF — Lloyds Open Form
• DESP — Despatch
• STA — Scheduled Time of Arrival
• FOQA — Flight Operations Quality Assurance Programs
• CRAF — Civil Reserve Air Fleet
• GUI — Graphic-User Interface
• GNSS — Global Navigation Satellite System
• FMGC — Flight Management Guidance Computer
• DLP — Data Link Processor
• TBN — To Be Notified
• BSS — Basis
• PFI — Private Finance Initiative
• SSR MODE S — Selective Address SSR
• RMP — Radio Management Panel
• IAO — In And Out
• OCC — Operations control center
• LHR — London Heathrow Airport, London, United Kingdom
• AAOSA — Always Afloat or Safe Aground
• LIFR — Low Instrument Flight Rules
• ALCE — Airlift Control Element
• TDWR — Terminal Doppler Weather Radar
• AARA — Amsterdam-Antwerp-Rotterdam Area
• CEC — Commission of the European Communities ;
• ADREP — Aircraft Accident/Incident Data Reporting System
• LORAN — Long-Range Aid to Navigation
• BBB — Before Breaking Bulk
• SMGC — Surface Movement Guidance and Control
• SNPA — Subnetwork Point of Attachment
• ACAMS — Aircraft Condition Analysis and Management System
• PROM — Programmable Read Only Memory (chip)
• LOM — Compass Locator at the Outer Marker
• ST&E — Security Test and Evaluations
• ARINC 609 — Design Guidance For Aircraft Electrical Power Systems
• ASMA — Aerospace Medical Association
• FTS — Federal Telecommunications System
• OAT — Outside Air Temperature

• DETR — Department of the Environment, Transport and the Regions
• IMG — Immigration
• DEP — Depart
• AAS — advanced automation system (FAA)
• BKN — Broken Sky (METAR Code)
• FR — From
• ARINC 744 — Full Format Printer
• FIOST — Free In/Out and Trimmed
• EFIS — Electronic Flight Information System
• FIOT — Free In/Out and Trimmed
• AP — Autopilot
• TOP — Cloud Top
• DIA — Denver International Airport
• ATCRB — Air Traffic Control Radar Beacon
• RAPPI — Random Access Plan-Position Indicator
• ARINC 745 — Automatic Dependent Surveillance, Supplement 1
• LVL CHG — Level Change
• AZM — Azimuth
• CATX — Categorical Exclusion
• CRT — Cargo Retention Clauses
• SHAPE — Supreme Headquarters Allied Powers Europe (NATO)
• ARINC 306 — Guidance For Designers Of Aircraft-Electronic Installations
• ADS-B — Automatic Dependent Surveillance-Broadcast
• MN — Magnetic North
• FPA — Focal Plane Array
• AGHME — Aircraft Geometric Height Measurement Element
• CAAC — Civil Aviation Administration of China
• FTI — FAA Telecommunications Infrastructure
• ATZ — Aerodrome Traffic Zone
• ICASM — International Congress of Aviation and Space Medicine
• FSM — Flight Schedule Monitor
• RATCC — Radar Air Traffic Control Center
• AAIB — Air Accident Investigation Branch
• HX — No Specific working hours
• DRK — Derrick
• CPS — Central Processing System
• ITWS — Integrated Terminal Weather System
• ADZ — Advise
• BN — Booking Note
• DF — Direction Finder (Finding)
• AOC — Aircraft Operating Company
• LO — Low
• SM — Statute Mile
• ARINC 566A — Mark 3 VHF Communications Transceiver
• ATIS — Automatic Terminal Information Service
• A/I — Accident/Incident
• PSS — Packet Switched Service
• IF — Intermediate Fix
• DF — Direction Finding or Finder
• ACAS — Airborne Collision Avoidance System

• ALPAP — Air Line Pilots Association of the Philippines
• M — Manual
• LORAN — Long Range Navigational System
• NL — Engine Revolutions per Minute
• ADS — automatic dependent surveillance
• ESRI — Environmental Systems Research Institute (developer of geographic information systems (GIS) software, Redlands, California)
• ACSA — Allied Communications Security Agency
• ODIF — Open Document Interchange Format
• FAC — Fast as can
• RESMA — Requirements for Emergency and Safety Airborne Equipment
• AFDS — Autopilot Flight Director System
• 8.33 CP — 8.33 Contact Person
• DZ — Drizzle
• SDR — Service Difficulty Report
• INIT — Initial
• SSB — Single Side Band
• PRN — Pseudo-Random Noise
• I — Italy
• AECB — Atomic Energy Control Board
• AODR — Authorizing Official Designated Representative
• BRF — Brief
• TDOP — Time Dilution of Precision
• NSSFC — National Severe Storms Forecast Center
• C/N — Carrier-To-Noise Ratio
• BTN — Between
• ECMT — European Conference of Ministers of Transport
• ALSF1 — ALS with Sequenced Flashers I
• BUECE — Back-up Emergency Communications Equipment
• GDP — Ground Delay Program
• AVI — Audio/Video Interleaved Format
• AASA — Air Lines Association of Southern Africa
• RTCA — Radio Technical Commission for Aeronautics
• QAR — Quick Access Recorder
• CBFT — Cubic Feet
• MSK — Minimum Shift Keying
• TROP — Tropopause
• CTAF — Common Traffic Advisory Frequency
• CRDA — Converging Runway Display Aid
• AVHRR — Advanced Very High-Resolution Radiometer
• IMDG — International Maritime Dangerous Goods
• OCA — Oceanic Control Area
• AT — Air Traffic
• SSR MODE S WG — Secondary Surveillance Radar Mode Selective WG
• DIP — Drop and Insert Point
• LTOG — Long Term Objectives Groups
• FIO — Free In/Out
• AFL — Actual Flight Level
• ESDI — Enhanced Small-Device Interface
• MODIS — moderate-resolution imaging spectrometer (NASA/GSFC)
• ATS — Air Traffic Services

• ARINC 600 — Air Transport Avionics Equipment Interfaces
• AIRS — Advanced Infrared Sounder
• MET — Meteorological
• JTSO — Joint Technical Standard Order
• AFISO — Aerodrome Flight Information Service Officer
• RAD — Radial
• BRA — Bearing, Range and Altitude
• CBM — Cubic Metres
• ARINC 608 — Standard Modular Avionics Repair And Test System
• JTIDS — Joint Tactical Information Distribution System (djay-tidz)
• AOPA — Aircraft Owners and Pilots Association
• FRZN — Frozen
• FLM — Front Line Manager
• MTD — Moving Target Detection
• ADS-R — Automatic Dependent Surveillance-Report
• ATMAS — Air Traffic Management Automated System
• ALTM — Altimeter
• FIT — Free In Trimmed
• AIC — Aeronautical Information Circular
• ACF — Area Control Facility
• ELBA — Emergency Locator Beacon Aircraft
• JAR-OPS — Joint Airworthiness Requirements Operations
• ATCO — Air Taxi Commercial Operator
• AST — FAA Office of Commercial Space Transportation
• TWIP — Terminal Weather Information for Pilots
• DTM — Digital Terrain Model
• NRH — No Reply Heard
• ECA — European Cockpit Association
• CIE — International Commission on Illumination
• EV — every
• MOCA — Minimum Obstruction Clearance Altitude
• UAB — Until Advised By
• CSIS — Centralized Storm Information System
• TURB — Turbulence
• CRAM — Conditional Route Availability Message
• ADES — Aerodrome of Destination
• AWOG — All Weather Operations Group
• SVCBL — Serviceable
• APA — Allied Pilots Association
• FACC — Feature and Attribute Coding Catalogue
• TIAS — True Indicated Airspeed
• ACID — Aircraft Identification
• AOR-E — Atlantic Ocean Region East
• FCC — Flight Control Computer
• FDPS — Flight Data Processing System
• APM — approach path monitor
• RD-CHANNEL — Random Data Channel
• IOT&E — Independent Operational Test and Evaluation
• ALF — Aloft
• AIMS — Airplane Information Management System

• FEU — Forty-Foot Equivalent Unit
• SMT — station management (protocol)
• MUD — Mud Log
• RDSIM — Runway Delay Simulation Model
• ATTIS — AT&T Information Systems
• BM — Beam, Maximum
• COP — Custom of Port
• SA — System Administrator
• PROB — probability
• MT — Mertic Tonne
• HDD — Head Down Display
• AACI — Airports Association Council International
• AEFMP — Algeria, Spain, France, Maroc, Portugal Project
• FSF IAS — Flight Safety Foundation International Aviation Safety
• ARINC 574 — Passenger Announcement, Entertainment & Service Multiplex System
• CRM — Cockpit Resource Management
• CFIT — Controlled Flight into Terrain
• LCTD — Located
• HW — High Water
• IMPR — Improve
• PBD — Place Bearing/Distance
• RSTD — Restricted
• DRFT — Drift
• COT — At the Coast
• A/L — Anti-ice
• AMSS — Aeronautical Mobile Satellite Service
• IVSI — Instantaneous Vertical Speed Indicator
• UAT — Universal Access Transceiver
• DISCH — Discharge
• AFIS — Airport Flight Information Service
• FBO — Fixed-Based Operator
• RSLS — Receiver Side Lobe Suppression
• BRL — Building Restriction Line
• ACCC — Australian Competition Consumer Commission
• PFA — Probability of False Alarm
• RBP — Radar Bypass Processor
• DVD — Dual View Display
• STAB — Stabilizer
• AOA — Airport Operations Area
• ASPW — Any Safe Port in the World
• CIP — Capital Investment Plan
• IFPZ — IFPS Zone
• IFRB — International Frequency Registration Board of the International Telecommunication Union
• SES — Single European Sky
• A/N — Arrival Notice
• FAP — Final Approach Point
• QDR — Reciprocal Magnetic Bearing
• MEA — Minimum Enroute Altitude
• ARINC 413A — Guidance For Aircraft Power Utilisation And Transient Protection
• ARINC 414 — General Guidance For Equipment And Installation Engineers

• AOC — Aircraft Operations Centre
• PMS — Performance Management System
• DBRITE — Digital Bright Radar Indicator Tower Equipment
• FSDO — Flight Standards District Office
• DEST — Destination
• WMSCR — Weather Message Switching Center Replacement
• CNDN — Canadian
• ARSR — Air Route Surveillance Radar
• CASS — Continuing Analysis and Surveillance System
• PHINOM — Nominal Bank Angle
• ATLC — Atlantic
• SATCAS — Selenia Air Traffic Control Automated System
• UIR — Upper Information Region
• EIU — Even If Used
• TO EPR — Takeoff Engine Pressure Ratio
• PASTUS — Past Us
• HDG SEL — Heading Select
• BASE — Cloud base
• A/G — Air-Ground
• ATIS-B — Automatic Terminal Information Service - Broadcast
• GLOSS — Global Sea Level Observing System (of IOC)
• LCL — Less Container Loaded
• BAA — British Airport Authority
• SOPA — Standard Operating Procedure Amplified
• RMI — Radio Magnetic Indicator
• FRQ — Frequent
• CDV — Compressed Digital Video
• FSP — Flight Strip Printer
• EOF — Emergency Operating Facility
• M. — meter
• BASE AMD — Base Arrival Manager Display
• A/A — Air/Air
• BS — Bootstrap Service
• AIMS — Aircraft Integrated Monitoring System
• STOL — Short Takeoff And Landing
• VNAV — Vertical Navigation
• PMA — Parts Manufacturer Approval
• ATDS — Airborne Tactical Data Systems (USN)
• ATCT — Airport Traffic Control Tower
• DO — Diesel Oil
• PRORES — Problem Resolution
• CEW — Civil Engineering Works
• AFIS — Aerodrome Flight Information Service
• EGPWS — Enhanced Ground-Proximity Warning System
• DALR — Digital Audio Legal Recorder
• HHMMSS — hour-hour / minute-minute / second-second
• PTUL — Pilots Trade Union of Latvia
• AT&T ASDC — At&t Agency Service Delivery Center
• PELA — Proficiency test in English Language for ATCOs
• ARINC 578 — Airborne ILS Receiver

• RMK — Remark
• AAPA — Association of Asia Pacific Airlines
• XAP — Crossing Alternate Proposal Message
• F&E — Facilities and Equipment
• DIS — Distance
• IMAL — Integrity Monitoring Alarm Limit
• ABOVE DECK — On the deck
• RDPS — Radar Data Processing System
• TRU — True
• OSH — Open Shelter Deck
• GRI — General Rate Increase
• DNSTRM — Downstream
• KCAS — Knots Calibrated Airspeed
• TODAH — Take Off distance available, helicopter
• ARINC 415 — Operation/Technical Guidelines On Failure Warning and Functional Test
• WFTU — World Federation of Trade Unions
• FOD — Foreign Object Debris
• FHINC — Fridays/Holidays Included
• IUHTAUTC — If Used, Half Time Actually To Count
• MLDT — Mean Logistic Down Time
• QTG — Qualification Test Guide
• EFAS — En Route Flight Advisory Service
• DEGS — Degrees
• API — FAA Office of International Aviation
• AMASS — Airport Movement Area Safety System
• WSW — West-South-West
• ABOARD — On or within the ship
• OMI — Organisation Maritime Internationale (French: International Maritime Organization; UN)
• DFRT — Deadfreight
• ASLAR — Aircraft Surge Launch And Recovery
• ONC — Operational Navigation Chart
• TRK — Track
• SGL — Signal
• XPNDR — Transponder
• SSTS — Space Surveillance and Tracking System
• 4D-NAV — 4D Navigation
• CALS — Computer-aided Acquisition and Logistic Support
• RPI — Real Property Inventory
• ECG — En Route Communications Gateway
• AEWPD — Adapted EATM Work Programme Document
• PVD — Plan View Display
• ALPA — Japan Air Line Pilots Association of Japan
• AOC — Aerodrome Obstacle Chart
• CWBS — Contract Work Breakdown Structure
• RD — Requirements Document
• 3D — Palair Macedonian
• AAME — Association of Aviation Medical Examiners
• FDIO — Flight Data Input/Output
• TMC — Thrust Management Computer
• AFIZ — Aerodrome Flight information Zone

• ADLY — Arrival Delay
• FTE — Flight Technical Error
• FIXM — Flight Information Exchange Model
• RCH — Reach
• VNO — Maximum structural cruising speed
• MTF — Modulation transfer function.
• MMI — Marshall Management Instruction
• QDM — Magnetic Heading
• ALRS — Alerting Service
• ETVCT — En Route Training Voice Communication Tool
• DDP — Distributed Data Processing
• 4D — Four-Dimensional
• MOTNE — Meteorological Operational Telecommunication Network in Europe
• MDD — Meteorological Data Distribution
• ASPENN RPG — Aeronautical Fixed Service Planning Study EUR/NAM/NAT Regional Planning Group
• EGT — Exhaust Gas Temperature
• ATFMS — Air Traffic Flow Management System
• UHF — Ultrahigh Frequency
• RSR — en-Route Surveillance Radar
• ASR-WSP — Airport Surveillance Radar-Weather System Processor
• ATAG — Air Transport Action Group
• LTP — Landing Threshold Point
• B&H — Bosnia & Herzegovina
• AAIB — Air Accidents Investigation Branch
• AATF — Airworthiness Assurance Task Force
• SVVP — Software Verification and Validation Plan
• CPF — Central Processing Facility
• ARINC 742 — Design Guidance For Windshear Warning and Guidance Equipment
• RTSE — Reliable Transfer Service Element
• CWY — Clearway
• ASDA — Accelerate-Stop Distance Available
• KLM — KLM Royal Dutch Airlines
• FIDS — Flight Information Display System
• GN — Grain
• ARF — Airport Reservation Function
• CP — charter-party
• ASCP — Aviation System Capacity Plan
• M/V — Merchant Vessel
• DPTH — Depth
• FPAP — Flight Path Alignment Point
• VRB — Variable
• ARINC 605 — Users Guide For ARINC 616 Avionics Subset Of ATLAS Language
• AOR-W — Atlantic Ocean Region West
• AOC — Airline Operational Control
• TCP / IP — Transmission Control Protocol / Internet Protocol
• AC — Advisory Circular
• QCM — Quality Control Manager
• B/C — Benefit/Cost
• LASKA — Learning And Skills Acquisition
• QAE — Quality Assurance Evaluator

• AIG — Airbus Industries Group
• FPPU — Flight Planning and Flight Progress Updating
• IRD — Initial Requirements Document
• HAPI — Helicopter Approach Path Indicator
• MAX CLB — Maximum Engine Thrust for Two-Engine Climb
• ASQP — Airline Service Quality Performance
• METAR — Meteorological Terminal Aviation Routine Weather Report
• AOC — Aeronautical Operational Communications
• LNAV — Lateral Navigation
• AFN — air traffic services facilities notification
• E M — signalling
• SUBJ — Subject
• AADC — Airport Average Daily Capacity
• ALPA-FYROM — Air Line Pilots Association of The Former Yugoslav Republic of Macedonia
• DESC — Descending
• AMS — Acquisition Management System
• XTRK — Cross Track Error
• ABDIS — Automated Data Interchange System Service
• A/G — Air/Ground
• FPO — Flight Procedures Office
• SATCOM — Satellite Communication
• OPT — Optimum
• IAG — International Association of Geodesy (IUGG)
• DME/P — Precision Distance Measuring Equipment
• APPA — Asociacion Profesional de Pilotos Aviadores de Costa Rica
• ADIC — ATS Interfacility Data Communications
• EEC — Electronic Engine Control
• BSU — Beam Steering Unit
• EFB — Electronic Flight Bag
• AJA — Acquisition & Business Services, Air Traffic Organization
• UAP — User Application Profile
• MAR — March
• EFIS — Electronic Flight Instrument System
• LECT — Lecture
• PMS — Pavement Management System
• TLS — Target Level of Safety
• AFT — At or towards the stern or rear of a ship
• SURVITE — Surveillance Integrated Tested for EATMS
• SASKI — Name of an ATS Route reporting point
• ADEP — Aerodrome of Departure
• ATLAS — Air Traffic Land and Air Study
• C/A CODE — Course / Acquisition Code
• LMM — Compass locator at the middle marker
• FG — Fog Gun
• ICAO — International Civil Aviation Organisation
• AAH — Autonomous Aircraft Hybrid
• SESAR — Single European Sky ATM Research
• IMPACT — Information Market Policy Actions
• ES&H — Environmental Safety And Health
• FDP — Flight Data Processing

• ALO — Air Force Liaison Officer
• PABX — Private Automated Branch EXchange (company Phone System)
• BTH (R) — Beyond the Horizon (Radar)
• NCB — National Cargo Bureau
• ROC — Regional Operations Center (NATO)
• AAD — Assigned Altitude Deviation
• EXP — Expect
• FAF — Final Approach Fixes
• AMSSP — Aeronautical Mobile Satellite Service Panel
• AIR — Aircraft Certification Service
• GEO — Geographic
• DSPY — Display
• ASC — AUTODIN Switching Center
• PHPD — Per Hatch Per Day
• BSS — Best Signal Selection
• ACRP — Airport Cooperative Research Program
• ARAC — Aviation Rulemaking Advisory Committee (FAA)
• RAPPI — Radar Access Plan Position
• AJR — System Operations Services, Air Traffic Organization
• TODA — Take-Off Distance Available
• ALOFT — Above the deck of the ship
• AS — Altostratus
• ERIDS — En Route Information Display System
• PDC — Pre-Departure Clearance
• AIFSS — Automated International Flight Service Station
• VDC — Volts, Direct Current
• ERR — Error message
• CWS — Control Wheel Steering
• ADSP — Automatic Dependent Surveillance Panel
• JAL — Japan Air Lines
• ASCII — American Standard Code for Interface and Interchange
• ACAA — Air Carrier Association of America
• HF — Human Factors
• DABS — Discrete Address Beacon System
• AMVER — Automated Mutual-Assistance Vessel Rescue system
• TSNT — Transient
• A01 — Automated Observation Without Precipitation Discriminator
• FPA — Flight Path Angle
• DITS — Digital Information Transfer System
• COBLDN — Closing of Business London
• DOTCC — Department of Transportation Computer Center
• CAR — Caribbean Region
• ATCO — Air Traffic Controllers Organization
• COE — Center of Excellence
• FE — Flight Examiner
• AMOS — Automated Meteorological Observation Station
• CWP — Controller Working Position
• NADA — NADIN Concentrator
• ATCRU — Air Traffic Control Radar Unit
• DMS — Database Management System

• CNVTV — Convective
• BRM — Barometer
• CFDS — Central Flight Data Suite
• ABET — Airspace Behavioural Engineering Technology
• AEV — Annual Equivalent Value
• AFFREIGHTMENT — The hiring of a ship in whole or part
• THR HOLD — Throttle Hold
• AACC — Airport Associations Co-coordinating Council
• ARR SP — Arrival Sequence Planner
• CFWU — Central Flow Weather Unit
• ARINC 576 — Mark 4 Subsonic Air Data System
• APMS — Automated Performance Measurement System
• NAT MWG — North Atlantic Mathematicians Working Group
• AIDS TO NAVIGATION — Artificial objects to supplement natural landmarks indicating safe and unsafe waters
• PAWES — performance assessment and workload evaluation
• OIG — Office of the Inspector General
• WSO — Weather Service Office
• AATT — Advanced Aviation Transportation Technology
• JSS — Joint Surveillance System
• CYTA — Cyprus Telecommunications Authority
• OLDI — On-Line Data Interchange
• IFPZ — Integrated Initial Flight Plan Processing System Zone
• ADLP — Aircraft Data Link Processor
• CFP — Cold Front Passage
• ACL — Altimeter Check Location
• ANCA — Airport Noise and Capacity Act
• BRITE — Bright Radar Indicator Tower Equipment
• IVSR — Interim Voice Switch Replacement Program
• STWL — Stopway Lights
• VCMAX — Active Maximum Control Speed
• ACC-PC — ACC Planning Controller
• FCL — Flight Crew Licensing
• FHEX — Fridays/Holidays Excluded
• NYPE — New York Produce Exchange
• AAC — Mike Monroney Aeronautical Center
• MAUW — Maximum All Up Weight
• ATCO — Air Traffic Control Officer
• XMT — Excluding
• ATPL — Air Transport Pilot Licence
• SATSAR — Satellite-aided Search And Rescue
• PTH — Path
• SEA/TAC — Seattle/Tacoma International Airport
• CUF — Cumuliform
• HP — Holding Pattern
• ALRS — Approach Lighting System
• MNOP — Maximum Normal Operating Pressure
• AICS — Aircraft Inventory and Charter System
• VOM — Volt-ohm-milliammeter
• AFMS — Automatic Flight Management System
• STANAG — (NATO) Standardisation Agreement

• SAT — Static Air Temperature
• ACDO — Air Carrier District Office
• DMU — Data Management Unit
• ACI-NA — Airports Council International-North America
• OTV — Orbital Transfer Vehicle
• YOYO — Only Y Available
• OFZ — Obstacle Free Zone
• ELD — Electrical Load Database
• APA(CV) — Air Line Pilots Association (Cape Verde)
• SMPS — Sector Maintenance Processor Subsystem
• DTU — Data Terminating Unit
• TWY — Taxiway
• A/T — autothrottle
• CMPL — complete
• EC — East Coast
• AO — Aircraft Operator
• ALTN — Alternate
• FIX — position in space usually on aircraft�s flight plan
• VTOL — Vertical Take-Off & Landing
• ATCCC — Air Traffic Control Command Center
• THDG — True Heading
• A&F — IFALPA Administration & Finance Committee
• FI — Flight Instructor
• CSMC — Cyber Security Management Center
• IFE — In-Flight Emergency
• APC — Aeronautical Passenger Communication
• CDA — Continuous Descent Approach
• FME — Force Majeure Excepted
• CAST — Certification Authority Software Team
• AFSFO — AFS Field Office
• CRT — Choice Reaction Time
• BANS — BRITE Alphanumeric System
• ISPS — International Ships and Port Security system
• IAT — Investment Analysis Team
• IGFET — Insulated Gate Field Effect Transistor
• G/A — ground to air
• AIRC — Aeronautical Information and Control
• CUR — Controller
• ARINC 528 — Airborne Tape Recorder
• NGA — National Geospatial-Intelligence Agency (formerly National Imagery and Mapping Agency; US government)
• CAVOK — Clouds and Visibility OK
• RLSD — Released
• FSAS — Flight Service Automation System
• ARP — Aerodrome Reference Point
• IFPS — Integrated Initial Flight Plan Processing System
• EHSI — Electronic Horizontal Situation Indicator
• PIC — Pilot In Command
• HHMM — Hours and minutes
• FFAC — From Facility
• SVP — Supervisor

• ANP — Air Navigation Plan
• EB — Eastbound
• CG — centre of gravity
• EFSTS — Electronic Flight Strip Transfer System
• CPA — Chairman's program assessment; closest point of approach
• CNS/ATM-1 — Communication, Navigation and Surveillance / Air Traffic Management Package 1
• NSW — No Significant Weather
• APPR — Approach
• AMIS — Aircraft Management Information System
• VHRR — Very High-Resolution Radiometer
• IDENT — Identification
• EX GDR — ex German Democratic Republic
• IA — International Alphabet
• AFO — Airport Field Office
• DADS — Digital Aeronautical Database System
• ODAL — Omnidirectional Approach Lighting System
• WBC — Weight and Balance Computer
• AAC — Airline Administrative Communication
• AFIS — Automated Flight Inspection System
• ARINC 602 — Test Equipment Guidance
• SRTM — Shuttle Radar Topography Mission
• PDR — Preferential Departure Route
• ARINC 746 — Cabin Communications System, Supplement
• RIMS — Runway Incursion Monitoring System
• EATCHIP — European Air Traffic Control Harmonisation and Integration Programme
• UAL — United Airlines
• GLD — Glider
• DPNG — Deepening
• MODE C — Altitude Reporting Mode of Secondary Radar
• A — Aeroplane
• WND — Wind
• PFR — Probability of Failure Repair
• PRM — Precision Runway Monitor
• 4DTN — 4D Trajectory Negotiation
• FAX — Facsimile Equipment
• QF — Quality Factor
• SEMP — Software Engineering Management Plan
• ARINC 741P1 — Aviation Satellite Communication System:Part I- Aircraft Installation Provisions
• AJS — Safety Services, Air Traffic Organization
• ECAC AREA — European Civil Aviation Conference Area
• DNG — Danger
• PALPA — Pakistan Air Line Pilots' Association
• ARINC 594 — Ground Proximity Warning System
• AUX — Auxilliary
• VCSS — Voice Communications Switching System
• AFRAA — African Airlines Association
• RNLAF — Royal Netherlands Air Force (also KLu)
• RTO — Rejected Take-Off
• MDH — Minimum Descent Height
• WMO — World Meteorological Organisation

• ACR — Atlantic Co-ordinated Route
• ISLS — Interrogation Side Lobe Suppression
• AGA — Aerodromes, Air Routes and Ground Aids
• DGAC — Direction Générale de l’Aviation Civile
• NAVAID — Navigational Aid
• KT — Knots
• ACEP — Airport Capacity Enhancement Plan
• ADA — Air Defense Area
• NAVSAT — Navigation Satellite
• MHA — Minimum Holding Altitude
• HEL — Helicopter
• HED — Heading
• FLIDRAS — Flight Data Replay and Analysis System
• 4-MAST — 4-MAST group
• GNCN — GENERAL CONDITIONS
• LS — Lumpsum Freight
• OVC — Overcast (METAR Code)
• DGELG — Dangerous Goods European Advisory Group
• ATOS — Air Transportation Oversight System
• FARAWAY — Fusion of Radar and ADS data through two WAY data link
• AGROUND — Touching or fast to the bottom
• TDO — Tornado
• TAU — Range / Range rate
• LMM — Locator middle marker
• APN — apron
• F18 — Field 18 of Flight Plan
• TVE — Total Vertical Error
• FSSA — Flight Service Station Automated Service
• ASI — Aviation Safety Inspector
• WRNG — Warning
• DOF — Date of Flight
• RP — Restoration Priority
• AWSS — Automated Weather Sensors System
• FMF — Facility Master File
• XNG — Crossing
• NP — Network Protocol
• OAG — Official Airline Guide
• AHR — FAA Office of Human Resources
• AALPBH — Association of Airline Pilots in Bosnia & Herzegovina
• AA — AMERICAN AIRLINE
• C-ATSU — Current Air Traffic Services Unit
• FAL — Final Assembly Line
• EAD — Earliest Arrival Date
• FISA — Automated flight Information Service
• DMN — Data Multiplexing Network
• ADAP — Airport Development Aid Program
• SWAP — Severe Weather Avoidance Program
• AEA — Eastern Region
• ARO — Airport Reservation Office
• TIS-B — Traffic Information Service Broadcast

• GA — General Average
• DAR — Designated Agency Representative
• SITA — Société Internationale Télécommunique Aéronautique
• DFW — Dallas Fort Worth International Airport
• ADS-P — Automatic Dependent Surveillance-Panel
• NPDU — Network Protocol Data Unit
• RAES — Royal Aeronautical Society
• SMR — Surface Movement Radar
• MDA/H — Minimum Descent Altitude/Height
• VBX — Visual Basic Extensions
• DADC — Digital Air Data Computer
• NAWAU — National Aviation Weather Advisory Unit
• AEGIS — Airborne Early Warning Ground Environment Integrated Segment
• LRCO — Limited Remote Communications Outlet
• RPP — Radiation Protection Program
• AACE — Airfield Approach Control Element
• DA — Descent Advisor
• ARINC 602A — Test Equipment Guidance
• GEADGE — German Air Defense Ground Environment
• FCU — Flight Control Unit
• GRD — Geared
• 8.33 PMC — 8.33 Programme Management Cell
• ITIRS — International Terrestrial Reference System
• CNTRLN — Centerline
• NBCAP — National Beacon Code Allocation Plan
• GPWS — Ground Proximity Warning System
• INBD — Inbound
• LYR — Layer
• 5-ST-RSG — 5-States Route Structure Group
• FMGS — Flight Management Guidance System
• ARFF — Aircraft Rescue and Fire Fighting
• ISL — Intermediate Supplementary Flight Level
• NLA — New Large Aircraft
• IA — Inspection Authorization
• AUTONAV — Auto-Navigation
• REIL — Runway End Identification Light
• AEREA — Association of European Research Establishments in Aeronautics
• EARS — En Route Analysis and Reporting System
• LC — Local Control
• FISO — Flight Information Service Officer
• NCN — Non-compliance Notification
• CEECS — Central and Eastern Europe Countries
• ADT — Air Data Tester
• DTG — Distance-to-go
• PCB&T — Personnel Compensation Benefits and Travel
• HI FI SIM — High-Fidelity Simulator
• CAR — Civil Aviation Regulations
• ARSC — Air Rescue Sub Centre
• ALD — Airlift Division
• IACA — International Air Carrier Association

• NMB — National Mediation Board
• FSDPS — Flight Service Data Processing System
• FBO — fixed base operator
• PMS — Program Management System
• LAYCAN — Layday Cancelling Date
• IFSS — International Flight Service Station
• CACRC — Commercial Aircraft Composite Repair Committee
• DOD — Department of Defence
• CMIS — Common Management Information System
• APGSL — Air Line Pilots Guild of Sri Lanka
• MMR — Multi-Mode Receiver
• ETOPS — Extended Range Twin-Engine Operations
• AAATS — Australian Advanced Air Traffic Services
• HST — Hypersonic Transport
• CWAR — Continuous Wave Acquisition Radar
• EMAS — Engineered Materials Arresting System
• ADI — Automatic De-Ice and Inhibitor
• AVSI — Aerospace Vehicle Systems Institute
• AFM — Affirmative Fair Housing Marketing
• AAL — Alaska Region
• ADIZ — Air Defence Identification Zone
• OPX — Off-Premises Exchange
• AVGAS — Aviation Gasoline
• FWDD — Fresh Water Departure Draft
• CEATS UAC — Central European Air Traffic Services Upper Airspace Control Centre
• AMSS — Aeronautical Mobile Satellite System
• RCD — DCL Request Message
• AIDS — Airborne Integrated Data Systems
• AJT — Terminal Service, Air Traffic Organization
• AERA — Automated En Route Air
• C/S — Call Sign
• DARC — Direct Access Radar Channel
• VRS — Voice Response System
• SHL — Saville and Holdsworth Ltd
• ACM — Acceptable Means of Compliance
• SETA — Systems Engineering and Technical Assistance
• HAA — Height Above Airport
• SFPL — System Flight Plan Processing
• ACLT — Actual Landing Time Calculated
• NTN — Network Terminal Number
• FDE — Flight Data Entry
• AWOP — All Weather Operations Panel (ICAO)
• NOPT — No Procedure Turn Required
• HURCN — Hurricane
• ECPIC — Electronic Capital Planning Investment Control
• ARN-2 (TABLE) — Radio Navigation Aids Associated with the Basic ATS Route Network Terminal Area and Instrument Approach Procedures
• SHEL — Software, Hardware, Environment, Liveware
• NEXRAD — Next Generation Weather Radar
• ATILO — Administrative Tribunal of the International Labour Organisation
• BORG — Basic Operational Requirements Group

• NARG — Navigation Aids and Area Navigation Group
• ALPA-K — Air Line Pilots Association of Korea
• CIDIN — Common ICAO Data Interchange Network
• ATAC — Airspace Traffic Data Capture
• MALS — Medium-Intensity Approach Lighting System
• ARTCC — Air Route Traffic Control Centre
• FQIS — Fuel Quantity Indicating System
• COMCO — Command Communications Outlet
• ARPL — ADEXP Format Repetitive Flight Plans Message
• DACT — Dissimilar Air Combat Training
• ADSEL — Address Selective SSR System
• FIFO — Flight Inspection Field Office(s)
• SCAT-1 APPROACH — Special Category 1 Approach
• HDWTS — Half Despatch Working Time Saved
• AEP — FAA Office of Aviation Policy Planning and Environment
• HKALPA — Hong Kong Air Line Pilots Association
• PT — Product Team
• LIL — Light Intensity Low
• ATCA — Air Traffic Controllers Association
• AFI — Africa-Indian Ocean Region
• FLCH — Flight Level Change
• ATCU — Air Traffic Control Unit
• HELIOPS — Helicopter Operations Panel
• MAX CRZ — Maximum Engine Thrust for Two-Engine Cruise
• JST — Joy Stick
• ABM — Abeam
• ARMATS — State Closed Joint-Stock Company of Armenian Air Traffic Services
• AASR — Aging Aircraft Safety Rule
• QP — Quality Plan
• CAMI — Civil Aerospace Medical Institute
• INM — Integrated Noise Model
• ABET — Airspace Behavioral Engineering Technology
• FPLMTS — Future Public Land Mobile Telecommunications System
• FPS — Flight Progress Strip
• FREQ — Next Sector frequency
• ATCEUC — Air Traffic Controllers European Unions Coordination
• MCK — Maintenance Check
• FPCP — Flight Path Control Point
• ITU WARC-95 — International Telecommunication Union World Radio Conference
• ATCI — Airport ATC and Information systems
• FSD TF — Functional Specification Development Task Force
• FDE-ICD — Flight Data Entry - Interface Control Document
• MTCD — Medium Term Conflict Detection
• ZFW — Zero Fuel Weight
• ALRT — Alert
• CASTLE — Consolidated Automated System for Time and Labor Entry
• ARINC 748 — Communications Management Unit
• FWAD — Fresh Water Arrival Draft
• DL — Delta
• DMSH — Diminish

• FOR — Free On Rail
• INSTRAT — Institutional Strategy for Air Traffic Management
• ERIP — EAD Remote Interface Package
• RID — review item description
• MIRACULIX — Multi Interface Radarformat Calculator and
• CLKWS — Clockwise
• OFT — Outer Fix Time
• GFP — Government Furnished Property
• AAFG — ATM Added Functionality Sub-Group
• FIS-B — Flight Information Services - Broadcast
• ABAFT — Toward the rear of the ship
• ETG — Enhanced Target Generator
• TBC — The Boeing Company
• STANINE — Standard Nine Score
• ARINC 585 — Electronic Chronometer System
• ALPA-SA — Air Line Pilots Association - South Africa
• FIS-B — Flight Information Service - Broadcast
• CNS/ATM — Communication, Navigation and Surveillance / Air Traffic Management
• AIG — Accident Investigation & Prevention
• TARE — Telegraphic Automatic Relay Equipment
• TN — True North
• ATCSCC — Air Traffic Control Systems Command Center
• MORS — Mandatory Occurrence Reporting Scheme
• RTCM SC — Radio Technical Commission for Maritime Services Special Committee
• D/L — Data Link
• ARINC 7411P2 — Aviation Satellite Communication System: Part 2 - Satellite Design
• AOI — Area of Operational Interest; TERPS Office (USAF)
• KB — Kilo Bytes (1,000 Bytes)
• AAC — Aeronautical Administration Communication
• AAMS — Aircraft Arrival Management System
• TEMPO — Temporary
• FPPS — Federal Personnel Payroll System
• REACT — Rain Echo Attenuation Compensation Technique
• ATOMS — Air Traffic Operations Management System
• MVE — Move
• AFZ — Resource Management
• ALPA-A — Air Line Pilots Association of Armenia
• LFP — Low Pass Filter
• ERAM — En Route Automation Modernization
• B&D — Bearing and Distance
• ATCA — Air Traffic Control Association, Inc.
• AFTN — Automated Fixed Telecommunications Network
• 5-STRSSG — 5-States Route Structure Steering Group
• AI — Application Interface
• ATCC — Air Traffic Control Centre
• VY — Speed for best rate of climb
• ARNG — Arrange
• FRNG — Firing
• SAS — Scandinavian Airlines System
• VCY — Vicinity

• ARINC 541 — Airborne Magnetic Flight Data Recorder
• MTW — Mountain Waves
• DP&P — Data Processing And Peripherals
• MAT — Maintenance Access Terminal
• EATCHIP OCD — Operational Concept Document
• AWO — All Weather Operations
• LRRAP — Long Range Resource Allocation Plan
• ORCAM — Originating Region Code Assignment Method
• ANSIR — Advanced Navigation System Inertial Reference
• CENRAP — Center Radar ARTS Presentation
• MTOW — Maximum Take-off Weight
• ALTNLY — Alternately
• V/STOL — Vertical or Short Take-Off and Landing
• FDESP — Free Despatch
• SSAP SELECTOR — Session Service Selector
• CAAF — Civil Aviation Authority of Fiji
• HID/NAS/LAN — Host Interface Device/National Airspace System/Local Area Network
• SLOP — Strategic Lateral Offset Procedure
• AUW — All Up Weight
• SRZ — Special Rules Zone
• NADIN — National Airspace Data Interchange Network
• OBST — Obstacle
• AFAS — Aircraft in the Future ATM System
• NAT SPG — North Atlantic Systems Planning Group
• EURO RAN — European Regional Air Navigation
• ALPA-S — Air Line Pilots Association - Singapore
• IAM — Institute of Aviation Medicine
• ACFS — Advanced Concepts Flight Simulator
• V/S — Vertical speed
• ISASI — International Society of Air Safety Investigators
• P&H — Press and Hold
• MTRAQ — Multi track quality
• CEF — Capacity Enhancement Function
• PIREP — Pilot Report
• TOD — Top of Descent
• ACPO — Aircraft Position Operator
• FRM — Financial Resources Management Core Team
• CFDIU — Central Fault Display Interface Unit
• EFF — Effective from
• DOM — Domestic
• ALPA-INT — Air Line Pilots Association - International
• TCAS — Traffic Alert and Collision Avoidance System
• VH — Maximum Level-flight Speed with Continuous Power
• CFL — Cleared Flight Level
• AAFCE — Allied Air Forces Central Europe
• AIPA — Aeronautical Information Production Application
• C — Celcius
• RTQC/A — Real Time Quality Control / Assessment
• MDA — McDonnell-Douglas Aerospace
• ARINC 741P4 — Aviation Satellite Communications System:Part 4 - Specification and Description Language

• DFS — Detailed Functional Specification
• FSF — Flight Safety Foundation
• ARN-1 (TABLE) — Basic ATS Route Network in the Lower and Upper Airspace
• POC — Point-of-Contact
• RA — Resolution Advisory
• VCMIN — Active Minimum Control Speed
• AEEC — Airlines Electronic Engineering Committee (ARINC)
• HELI — Heliport
• SECRA — Secondary Radar Data Only
• OSA — Operational Safety Assessment
• ALCM — Air Launched Cruise Missile
• EASA — European Aviation Safety Authority
• AND — Associate Administrator for NAS Development
• RTQC — Real Time Quality Control
• GEORGIAN ALPA — Georgian Air Line Pilots Association
• ATSS — Airway Transportation Systems Specialist
• ATSC — Air Traffic Service Communications
• BIMCO — The Baltic and International Maritime Council
• OMT — Onboard Maintenance Terminal
• ASAS — Aviation Safety Analysis System
• TDZ — Touchdown Zone
• DFI — Direction Finding Indicator
• AGI — FAA Office of Government and Industry Affairs
• PATCG — PHARE Advanced Tools Co-ordination Group
• DCAA — Danish Civil Aviation Administration
• MALPA — Mauritius Air Line Pilots Association
• LYCN — Layday Cancelling Date
• D&D — Distress and Diversion
• EARTS — En Route Automated Radar Tracking System
• VSP — Vertical Speed
• ARINC 307 — Aircraft Integrated Data System Wire Bundle Provisions
• ANSEP — Air Navigation Services Economics Panel
• ACOD — Area Conflict Detection
• NORAC — No Radio Contact
• SSFDR — Solid-State Flight Data Recorder
• ASE — Altimetry System Error
• LVE — Leave
• MUT — Mean Up Time
• T/O — Takeoff
• AZ — Aerodrome zone
• D/A — Digital-to-Analog
• AFTIL — Airway Facilities Tower Integration Laboratory
• ACAC — Arab Civil Aviation Council
• FTC — Fast-Time Constant
• HIS — Horizontal Situation Indicator
• AWSS — Automated Weather Sensor System
• SNIR — Signal-to-noise ratio
• VS — Design Speed for Maximum Gust Intensity
• AV — Avianca (Aerovias del Continente Americano) Colombian Airline
• COCESNA — Central American Corporation For Air Navigation Service

• ADMA — Aviation Distributors and Manufactureres Association
• FREE OUT — Free of discharge costs to owners
• AEX — Automated Execution
• QBI — Compulsory IFR flight
• AOIS — Aeronautical Operational Information System
• CPCS — Consolidated Production Control System
• ARINC 751 — Gate-Aircraft Terminal Environment Link - Aircraft Side
• ADDA — Administrative Data
• ALPA-SL — Air Line Pilots Association of Slovenia
• SSW — South-South-West
• AEE — FAA Office of Environment and Energy
• MOD — Memorandum of Decision
• IANS — Institute of Air Navigation Services
• AJO — Chief Operating Officer, Air Traffic Organization
• PFL — Planned Flight Level
• FLAS — Flight Level Allocation System
• AAF — ATM Added Functions
• FSCAP — Flight Safety Critical Aircraft Parts
• FZL — Freezing Level
• ATIC — Administrative and Technical Inspection Committee
• DASI — Digital Altimeter Setting Indicator
• EFP — Espaсa-France-Portugal Plan
• RTS — Return To Service
• EEC — Eurocontrol Experimental Centre
• IFO — International Field Office
• AOF — Allocation of Functions
• FSYS — Flight Service Station Equipment Systems
• CVTS — Compressed Video Transmission Service
• CAMA — Civil Aviation Medical Association
• AJW — Technical Operation Services, Air Traffic Organization
• ASA — Airservices Australia
• EUROCONTROL — European Organisation for the Safety of Air Navigation
• C-ATSU — Controlling ATS Unit
• AOC — Aeronautical Operation Control
• DYSIM — Dynamic Simulator
• VM(LO) — Minimum Maneuver Speed
• AIREP — Plain language form of Air Report
• DG — Directional Gyroscope
• CASOR — Civil Area Services Operations Room
• RDVS — Rapid Deployment Voice Switch
• GLOC — Gravity-Induced Loss of Consciousness
• ARINC 577 — Audible Warning System
• PCGO — Part Cargo
• AMCP — Aeronautical Mobile Communications Panel
• RCLL — Runway Centre Line Lights
• JAI — Joint Acceptance Inspection
• EATCHIP LO — EATCHIP Liaison Officer
• LOE — Line Oriented Evaluation
• AQS — FAA Office of Quality, Integration and Executive Services
• RAPNET — Regional ATC Packet switched Network

• TAAATS — The Australian Advanced Air Traffic Services System
• PPL — Private Pilot License
• AIM — Aeronautical Information Management
• GLONASS — Global Orbiting Navigation Satellite System, Russia
• CPCS — Cabin Pressure Control System
• CAEG — Computer-aided Engineering Graphics
• N1 — Gas generator speed
• IGA — International General Aviation
• DDB — Dynamic Database Browser
• HDOT — Inertial Vertical Speed
• LB — Local Battery
• ANGB — Air National Guard Base
• ALPA-E — Air Line Pilots Association of Ethiopia
• BTL — Between layers
• CARATS — Collaborative Actions for Renovation of Air Traffic Systems
• EFC — Expected Further Clearance
• M/SEC — Metres per second
• DMRS — Database Management Reporting System
• FAL — Facilitation of International Air Transport
• IOSA — Iata Operational Safety Audit
• DACS — Digital Aeronautical Chart Supplement
• FERS — Facility and Equipment Reporting System
• ARO — Air Traffic Service Reporting Office
• IRVR — Instrument Runway Visual Range
• OE/AAA — Obstruction Evaluation/Airport Airspace Analysis
• DEMO — Demonstration
• AFAST — Active Final Approach Spacing Tool
• EPROM — Erasable-Programmable Read-Only-Memory
• EHEST — European Helicopter Safety Team
• DR — Drifting (METAR descriptor)
• EHA — European Helicopter Association
• LRNAV — Long Range Navigation
• GDE — Ground Delay Enhancements
• 5-SRSWG — 5-States Route Structure Working Group
• AFG — Advisory Financial Group
• QFU — Magnetic orientation or runway in use
• FAST — Final Approach Spacing Tool
• GNDCK — Ground Check
• AIRMET — Air Meteorological Information Report which may affect the safety of low-level aircraft operations
• IMAWP — Initial Missed Approach Waypoint
• GES — Ground Earth Station
• IAF — Initial Approach Fixes
• CFD — Change to Flight Data Message
• AIT — Automated Information Transfer
• FPFS — First Planned First Served
• ATFMU — Air Traffic Flow Management Unit
• MAPT — Missed Approach Point
• AFM — Aeroplane Flight Manual
• ATAS — Airspace and Traffic Advisory Service
• ACS — airspace control system

• PANS-OPS — Procedures for Air Navigational Services - Aircraft Operations
• HCS — Host Computer System
• GEOREF — Geographical reference
• CASS — Corporate Aviation Safety Seminar
• OGE — Operational Ground Equipment
• SNR — Signal-to-Noise
• FPB — Flight Progress Board
• DFDR — Digital Flight Data Recorder
• GF — Gulf Air Company - Bahrain
• DCS — Double Channel Simplex
• NEXTGEN — Next Generation Air Transportation System
• EFC — Expect Further Clearance
• ELMS — Electronic Learning Management System
• FLOWSIM — Traffic Flow Planning Simulation
• DNSLP — Downslope
• OTR — Oceanic Transition Route
• FIN — Finnair Oyj, Finland
• GMU — GPS (Height) Monitoring Unit
• SMD — Storage Module Device
• CMFO — Certificate Management Field Office
• ITI — Interactive Terminal Interface
• ADISP — Automated Data Interchange Systems Panel
• FES — Fixed Earth Station
• CPMIS — Consolidated Personnel Management Information System
• D — Derated
• GDCE — Ground Data Circuit Terminating Equipment
• VTOL — Vertical Take-Off and Landing aircraft
• DOD MIL — Department of Defence - military
• COCESNA — Central American Corporation for Air Navigation Services
• DATAC — Digital Autonomous Terminal Access Communication
• ANMS — Automated Network Monitoring System
• AS — Airspeed
• RX — Receiver
• ANS/CR — Air Navigation Services of the Czech Republic
• DUAT — Direct User Access Terminal
• CEAS — Class E Airspace
• ALERT — Alert phase
• SFAR-38 — Special Federal Aviation Regulation 38
• BCC — Battery Charge Controller
• ADL — Aeronautical Data-Link
• Z — Equivalent to Greenwich Mean Time
• NMCS — Network Monitoring and Control System
• RBDPE — Radar Beacon Data Processing Equipment
• NUA — Network User Addresses
• RCLS — Runway Centerline Lighting System
• ERM — En Route Spacing Program
• ARINC 551 — Airborne Glide Slope Receiver - Mark 2
• DUATS — Direct User Access Terminal System
• DPE — Designated Pilot Examiner
• IW — Inside Wiring

• SFAR — Special Federal Aviation Regulation
• LCG — Load Classification Group
• AFP — Area Forecast Panel
• CRNA — Centre Régional de la Navigation Aérienne
• ETN — Electronic Telecommunications Network
• VC — Design Cruising Speed
• AOPG — Aerodrome Operations Planning Group
• QTE — True Bearing
• AOCC — Atlantic Operations Control Center
• HSPD — Homeland Security Presidential Directive
• ASPA — Asociacian Sindical de Pilots Aviadores de Mexico
• ARP — Aerospace Recommended Practice
• LAHSO — Land And Hold Short Operation
• AXX — One of the 9 Regional Offices
• STAC — Second Time Around Clutter
• RSAP — Runway Safety Action Plan
• ELS — Emergency Landing Strip
• ARU — Airspace Reservation Unit
• SRMDM — Safety Risk Management Memo
• MAA — maximum authorized IFR altitude
• RFL — Requested Flight Level
• AEG-TFK — AEG-Telefunken
• GENOT — General Notice
• AOPTF — Aerodrome Operations Task Force
• EIRP — EffectiveIsotropic Radiated Power
• IACS — INTERGRAPH Aeronautical Charting System
• ATAS — Air Traffic Advisory Service
• NTM F/T SIM — Nattenheim Fast Time Simulation
• ASTA — Airport Surface Traffic Automation
• AMDA — Airlines Medical Directors Association
• FIRE — Fire Station
• BUNKERS — Name given for vessels Fuel and Diesel Oil supplies
• RE — Resident Engineer
• AFD — Airport Facility Directory
• AOCI — Airport Operators Council International
• RLCE — Request Level Change En-route
• RTA — Required Time of Arrival
• LCN — Local Communications Network
• FPR — Flight Plan Route
• CLB — Climb Detent of the Thrust Levers
• SDS — Switched Data Service
• CCS7-NI — Communication Channel Signal-7 Network Interconnect
• SPAS — System Performance Analysis System
• IFL — Intermediate Flight Level
• ATTCS — Automatic Takeoff Thrust Control Systems
• RLD — Rijks Luchtvaart Dienst
• CR(A)OC — Central Region (Air) Operations Centre
• ARINC 752 — TFTS Airborne Radio Sub-System
• CEATS — Central European Air Traffic Services
• IAS — Indicated Air Speed

• SGC — Swept Gain Control
• HBS — Hotline Back-up System
• PSDN — Public Switched Data Network
• IAR — Intersection of Air Routes
• DCAA — Dual Call, Automatic Answer Device
• ANSA — International Advisory Group Air Navigation Services
• ACL — Air Traffic Control Clearance
• CAIRS — Cable Assignment Information Retrieval System
• POCC — Pacific Operations Control Center
• ADIS — Automatic dependent surveillance and Data Link Interim System
• ACAS — Airborne Collision and Avoidance System
• ELR — Extra Long Range
• RDP — Radar Data Processor
• ATN — Aeronautical Telecommunications Network
• ASPM — Aviation System Performance Metrics
• HFDL — High Frequency Data Link
• U/L — Upper / Lower
• DEV — Deviation
• CDFA — Constant Descent Final Approach
• IAFP — Individual ATC Flight Plan Proposal
• PQM — Project Quality Manager
• EL — Electro-Luminescent
• VPATH — Vertical Path
• AMIDSHIPS — In or toward the centre of the ship
• FDMAS — Flight Data Management Automated System
• CLNP — Connection Less Network Protocol
• WTC — Wake Turbulence Category
• LLC — Link Layer Control
• FPZ — Flight Path Zone
• LCGS — Low Cost Ground Surveillance Radar
• DERA — Defense Evaluation and Research Agency
• VFE — Flaps Extended Placard Speed
• CLG — Calling Line
• ASIP — Aviation VHF-Very High Frequency- Packet Communication Simple Interface Protocol
• WSFO — Weather Service Forecast Office
• MSAW — Minimum Safe Altitude Warning
• AIRSPACE — and Traffic Management
• CESA — Class E Surface Area
• CMU — Communications Management Unit
• HSM — High Speed Modem
• FPPS — Flight Plan Processing System
• ESCAT — Emergency Security Control of Air Traffic
• TOGA — Takeoff/Go-Around
• AWPG — Aviation Weather Products Generator
• AAM — Office of Aerospace Medicine
• DLASD — Data Link Application and System Document
• OPLAN — Operational Plan
• AES — Airborne Earth Station
• CAPP — Client Applications Section
• GDCA — General Directorate for Civil Aviation

• VTT — Vertical Threshold Test
• ARINC 59MA — Airborne Announcement Tape Reproducer
• MTOM — Maximum Take-Off Mass
• PCPS — Purchase Card Processing System
• DSCN — Direct Speech Circuit Networks
• SUP/ACC — Supervisor Area Control Centre
• VAAC — Volcanic Ash Advisory Centre
• ADS-C — Automatic Data Surveillance Contract
• ATFMP — Air Traffic Flow Management Position
• CTOL — Conventional Takeoff & Landing
• CNS — Communication, Navigation and Surveillance Systems, Inc.
• D — Danger Area
• BAPA — Bangladesh Airline Pilots Association
• OGM — Objectives > Goals > Mission
• SBAS — Space Based Augmentation System
• DFL — Daily Flight Log
• ANM — ATFM Notification Message
• ALLA — Allied Long-Lines Agency
• DFTI — Distance-from-Touchdown Indicator
• CAAC — Civil Aviation Authority of China
• PC — Period of Charter
• AIRPAC — Advisor for the Intelligent Resolution of Predicted Aircraft
• LDB — Limited Data Block
• BUL-ALPA — Bulgarian Air Line Pilots Association
• APATSI — Airport / Air Traffic Systems Interface
• ARINC 569 — Heading and Altitude Sensor
• GADO — General Aviation District Office
• TDM — Track Definition Message
• CHI — Computer-Human Interface
• D/D — Drift Down
• DFIS — Data Link Flight Information Service
• IRT — Interrogation Repetition Time
• AFC — Airport Facilities Control
• ARQ — Automatic error Correction
• GSB — Good Safe Berth
• BART — Billing Analysis Reporting Tool
• CMSA — Carrier Sense Multiple Access
• DSG — Data Services Group
• CIT — Compressor Inlet Temperature
• ARINC 592 — Airborne Passenger Tape Record
• ARQ — Automatic Response to Query
• RPR — Real Property Report
• NRZI — Non Return to Zero Inverted magnetic tape bpi
• WPX — Next waypoint on the flight plan
• IFATSEA — International Federation of Air Traffic Safety Electronic Associations
• IUAI — International Union of Aviation Insurers
• ESEWD — East-Southeastward
• MADAP — Maastricht Automatic Data Processing and Display System
• ALPA — As the Air Line Pilots Association
• ARTS — Area Radar Training Squadron

• PATWAS — Pilot's Automatic Telephone Weather Answering Service
• CCAA — Chinese Civil Aviation Association
• MOGAS — Motor Gasoline
• CANSO — Civil Air Navigation Services Organisation
• FDSU — Flight Data Storage Unit
• FFM — Free Flight Mode
• AIRNET — Airport Network Simulation Model
• NAV-1 — Radar Data System
• DIRF — Direction Finding
• MVA — Minimum Vectoring Altitude
• FMU — Flow Management Unit
• NARACS — National Radio Communications System
• EFL — Entry Flight Level
• ASRS — Aviation Safety Reporting System
• TMG — Tourig Motor Glider
• IM — Inner Marker
• RDR — Radar Departure Route
• AJC — Communications Services, Air Traffic Organization
• FDAMS — Flight Data Acquisition and Management System
• FDMD — Flight Data Management and Distribution
• DSUA — Dynamic Special - Use Airspace
• MDAU — Maintenance Data Acquisition Unit
• P — Procedure-Required Tuned NAVAID
• SPAS — Safety Performance Analysis System
• REAL — Real time
• EVAS — Enhanced Vortex Advisory System
• GNSSP — Global Navigation Satellite System Panel
• GFM — Government Furnished Materials
• OGP — Oil and Gas Producers Aviation Sub Committee
• ATK — Air Traffic Controller Acknowledgement
• ERAD — En Route Broadband Radar
• FISMA — Federal Information Security Management Act of 2002
• NAPA — Namibia Air Line Pilots Association
• LVB — Luchtverkeersbeveiliging
• IABA — International Association of Aircraft Brokers and Agents
• METAR — Meteorological Aerodrome Report
• ER TC — En-Route Tactical Controller
• ATA — Airport Traffic Area
• HFX — Holding Fix
• FILTIM — Date and Time Stamp of original Message
• SSM — Sign Status Matrix
• CMU — Certificate Management Unit
• CCIF — Comit? Consultatif International Des Communications T?l?phoniques ? Grande Distance (French For International Telephone Consultative Committee
• PBS — Preferential Bidding System
• GDLP — Ground Data Link Processor
• AFS — Automatic Flight System
• DDC — Data Display Console
• YSAS — Yaw Stability Augmentation System
• AJF — Finance Services, Air Traffic Organization
• DISCR — Discrepancy

• CEU — Central Executive Unit
• ASBA — American Shipbrokers Association
• AVON — AUTOVON Service
• BROKERAGE — Percentage of freight payable to broker
• DRCP — Data Reduction Computer Program
• AIS-TF — AIS Training Task Force
• ECASS — European Committee on Aircrew Scheduling and Safety
• ARINC 597A — Enhanced ACARS Avionics
• CFWP — Central Flow Weather Processor
• MASPS — Minimum Aviation Systems Performance Standards
• EATMS — European Air Traffic Management System
• FIP — Facility Improvement Program
• CTA — Control Area (Air Traffic)
• PWI — Proximity Warning Indicator
• CEAC — Committee of European Airspace Co-ordination
• AREA — Automated En Route Air Traffic Control
• DAI — Direct Access Intercom
• ADTN — Administrative Data Transmission Network
• MONA USER — Monitoring Aids User
• HCP — Hard Copy Printer
• ADSP — ADS Processor
• RCDSS — Radar Control and Display Subsystem
• IRMC — Integrated Risk Management Checklist
• SO — Southern Airways
• APLRIM — Association des Pilotes de Lignes de Mauritanie
• BTC — Basic Training Course
• OMIC — Operations Manager in Charge
• TARMAC — Taxi and Ramp Management and Control
• FPM — Flight Path Monitor
• AWP — Arrival Waypoint
• ATCS — Air Traffic Control Service
• V1 — Take-Off Decision Speed
• ACSEP — Aircraft Certification Systems Evaluation Program
• SPACDAR — Specialist Panel on Automatic Conflict Detection and Resolution
• ARINC 595 — Barometric Altitude Rate Computer
• EFPM — Extended Flight Plan Message
• NAT IMG — North Atlantic Implementation Management Group
• DMR — Data Modification Request
• DCCU — Data Communications Control Unit
• CAAFI — Commercial Aviation Alternative Fuels Initiative
• PNF — Pilot Not Flying (aviation)
• ITU-T — International Telecommunications Union
• FMG — Frequency Management Group
• AORTF — ATM Added Functionality Operational Requirements Task Force
• GNLU — GNSS Navigation and Landing Unit
• BRKHIC — Breaks in Higher Overcast
• DEDS — Data Entry and Display System
• IGCN — Independent Ground Communications Network
• EWA — Error Warning Area
• SNDC — Subnetwork Dependent Convergence Function

• CATCO — Chief ATC Operations
• NSDU — Network Service Data Unit
• TARA — Terminal Area RNAV Applications Task Force
• SAMS — special-use airspace management system
• FDC — Flight Data Company
• AWOS — Automatic Weather Observing System
• MTWA — Maximum Takeoff Weight Authorized
• GICB — Ground Initiated Comm B Protocol
• E/O — Engine-Out
• DAIR — Direct Altitude and Identity Readout
• HDQ — FAA Headquarters
• FPI — Fluorescent Penetrate Inspection
• HAC — Hughes Aircraft Company
• MTCDR — Medium-Term Conflict Detection and Resolution
• RPC — Restoration Priority Code
• AIMS — Aircraft Information Management System
• APATSI — Airport/air traffic system interface
• CLSD — Closed
• EFS — Electronic Flight Strip
• PT — Total Pressure
• AMIC — Area Manager in Charge
• IAASM — International Academy of Aviation and Space Medicine
• NDB — Non-Directional Beacon
• MRVA — Minimum Radar Vector Altitude
• IAIP — Integrated Aeronautical Information Package
• ARINC 406A — Airborne Electronic Equipment
• VSO — Stalling Speed in the Landing Configuration
• ETX — End of Transmission
• DER — Departure End of the Runway
• CODA — Central Office of Delay Analysis
• IRCAS — Intranet Radio Coverage Analysis System
• IIE — Integrated Information Environment
• GAT — General Air Traffic
• RMM — Remote Maintenance Monitoring
• EDDA — Environmental Due Diligence Audit
• SNA — Sindicato Nacional dos Aeronautas
• DTW — Dual Tandem Wheels
• AFMT — Airway Facilities Management Team
• SANE — Skill Acquisition Network
• AOPA — Aircraft Owner and Pilot Associations
• TOPL — Take Off Performance Limits
• EOPF — Electronic Official Personnel File
• BALPA — British Air Line Pilots Association
• ATM — Air Transportation Management
• VSAT — Very Small Aperture Satellite Terminal
• MCC — Maintenance Control Center
• DEP TC — Departure Tactical Controller
• RPL — Repetitive Flight Plan
• OPADD — Operating Procedures for AIS Dynamic Data
• RMMC — Remote Maintenance Monitoring and Control

• ANSO — Air Navigation Services Offices
• FPD — Flight Plan Database
• ARSA — Airport Radar Serve Area
• APV — Approach with Vertical Guidance
• AAM — Airbus Asset Management
• SASS-C — Surveillance Analysis Support System - Centre
• SFOR — UN Stabilisation Force (in Bosnia And Herzegovina)
• IPSE — Integrated Programming Support Environment
• ISSM — Information Systems Security Manager
• CL — Cost Index
• NASP — National Airspace System Plan
• ONL — On-Line Plc (London Stock Exchange [LSE])
• SIGMET — Significant Meteorological Information
• ACA — Austrian Cockpit Association
• AOCP — Airborne Operational Computer Programme
• PD — Profile Descent
• CDR — Coded Departure Routes
• ATCS — Air Traffic Control Specialist
• AP — Airport Patrol
• I&I — Impact & Implementation
• AECG — ACAS Evaluation and Co-ordination Group
• FSL — Full Stop Landing
• PIREPS — electronic pilot reports
• IAAE — International Association of Airport Executives
• BASOP — Military Base Operations
• ANPP — Air Navigation Plan Publication
• FCLT — Freeze Calculated Landing Time
• FIO — Flight Information Office
• OMEGA — Very Low Radio Navigation System
• CIWS — CORRIDOR INTEGRATED WEATHER SYSTEM
• CES — Central and Eastern European States
• TAWS — terrain awareness and warning system
• DMSTN — Demonstration
• ICET — IATA Capacity Enhancement Team
• SUPSIS — Supervisor
• HDF — High frequency direction-finding station
• OAMP — Off-line Aircraft Management Program
• HS-DTS — High Speed Data Transmission System
• AENA — Spanish Airport and Air navigation Administration
• ARR — Arrival
• HIRS — High-resolution Infrared Sounder
• EHD — Danger Area
• SOIWR — Simultaneous Operations on Intersecting Wet Runways
• RASP — Regional Airport System Plan
• DE-TO PR — Derated Takeoff Engine Pressure Ratio
• HEMS — Helicopter Emergency Medical Services
• MPL — Multi-crew Pilot Licence
• BEAM — the greatest width of a ship
• AWPA — Australian Women Pilots' Association
• ACDAC — Asociacion Colombiana de Aviadores Civiles

• ACFO — Aircraft Certification Field Office
• APEC — Aircraft Performance Evaluation & Certification
• OEP — Operational Evolution Plan
• ISAD — ICAO's Incorporating Security into Aircraft Design Working Group
• NEM — Noise Exposure Map
• CAEP — Committee on Aviation Environmental Protection
• AASC — Airport Authorities Steering Committee
• BRKG — Braking
• AEDT — Aviation Environmental Design Tool
• NIST — National Institute of Standards and Technologies
• AWX — All Weather Fighter
• CPDLC — Controller Pilot Datalink Communications
• FOG — For Our Guidance
• FMA — Flight Mode Annunciator
• SBU — Service Business Unit
• ASIAS — Aviation Safety Information Analysis and Sharing
• AOAS — Advanced Oceanic Automation System
• GO — Gas Oil
• WXR — Weather Radar
• ACTF — Aeronautical Charting Task Force
• NUDET — Nuclear Detection
• FCM — Flight Confirmation Message
• MCSG — Military Committee Staff Group
• AWAS — Automated Weather Advisory Station
• AM — AeroMexico
• CATCAS — Copenhagen Air Traffic Control Automated System
• ARST — Arresting specify aircraft arresting
• NCW — Non Conformance Warning
• LAX — Identifier for Los Angeles
• KDS — Keyboard Display System
• CLT — Calculated Landing Time
• TSG — Training Sub-Group
• QRA — Who Are You
• TACH — Tachometer
• IFATCA — International Federation of Air Traffic Controllers' Associations
• SNET — Safety Nets
• FAAAC — FAA Aeronautical Center
• CDU — Control and Display Unit
• ELNGT — Elongate
• EATM — European Air Traffic Management Programme
• IIS — Internal Information System
• EU-FCL — EASA Flight Crew Licensing
• ALPA — Airlines Pilots Association
• LOS — Line-Oriented Simulation
• NIMS — NAS Infrastructure Management System
• NAT CMA — North Atlantic Region Central Monitoring Agency
• LFR — Low-frequency Radio Range
• FCM — Flight Schedule Monitor
• CVFR — Controlled Visual Flight Rules
• DP — Departure procedures

• GRADE — Graphical Airspace Design Environment
• IFPA — Instrument Flight Procedures Automation Program
• EUR — Region European Region
• NRF — NATS Research Facility
• IFPL — Individual Flight Plan Message
• OH — Operational Handbook
• AFCNF — Air Force Central NOTAM Facility
• FDA — Flight Data Analysis
• ADO — IFALPA Aircraft Design & Operation Committee
• TWT — Travelling Wave Tube
• CESAR — Course Evaluation Sheets Analysis and Reporting
• TORA — Take-Off Run Available
• SUP. PRACT. — Supervised Practices
• ALA — Alighting Area
• DFGS/C — Digital Flight Guidance System/Computer
• CDRA — Cooperative Research and Development Agreement
• ACG — Advanced Concept Group
• IAPA — Instrument Approach Procedures Automation
• AIR 4653 — Aerospace Information Report 4653
• CUPS — Consolidated Uniform Payroll System
• CRMCS — Central RADNET Monitoring and Control System
• GFDI — GNSS Fault Detection and Isolation
• MMPI — Minnesota Multi-phasic Personality Inventory
• ART — Analysis and Replay Tool
• AWY — Airway
• STDMA — Self-organising Time Division Multiple Access
• CEATS LSG — Central European Air Traffic Services Legal Sub Group
• ARINC 569 — Airborne Distance Measuring Equipment
• NASPAC — National Airspace System Performance Analysis Capability
• AP — Airport Plaza
• HV — Transavia Airlines CV
• DRDF — Digital Readout Direction Finder
• DEPA — Departure Airfield
• ATCS — Advanced Train Control Systems
• DLR — German Aerospace Research Establishment
• AFSFU — AFS Field Unit
• APP — Approach Control
• CATSIM — CAA Air Traffic Simulator
• SAI — Safety Attribute Inspection
• AL — Allegheny
• IGP — Ionospheric Grid Points
• USAF — U.S. Air Force
• LAA — Local Airport Advisory
• ATFMC — Air Traffic Flow Management Communications
• RCL — Runway Centreline Lighting
• CFR — Crash Fire Resque
• CTO — Calculated Time Over
• AWIR — Automatically generated What-If Re-routing
• ARQ — Automatic Request Repeat
• MB — Merchant Broker

• ARITRM — Assessment of the Radiological Impact from the Transport of Radioactive Materials
• GENOFIC — General North Sea Flight Information Centre
• MBPS — Mega Bits per second
• VSTOL — Vertical or Short Takeoff and Landing
• APS — Airport Planning Standard
• ASECNA — Agence pour la Securité de la Navigation en Afrique et à Madagascar
• TKE — TrackAngle Error
• ILSP — Integrated Logistic Support Program
• AWIS — Airport Weather Information
• PHL — Preliminary Hazard List
• OATS — Orbit and Attitude Tracking
• LDAH — Landing Distance Available Helicopter
• AOA — Aircraft Operating Agency
• ADM — Aeronautical Decision Making
• DDU — Display Drive Unit
• CGS — Centimeter-gram-second
• ERD — End Routing Domain
• APDSG — Airspace Planning & Development Sub-Group
• DVOR — Doppler Very High Frequency Omni Directional Range
• ROD — Record Of Decision
• NOF — NOTAM Office
• PRP — Pulse Repetition Period
• PND — Primary Navigation Display (aviation)
• ESCO — Executive Support and Coordination Office
• FRA — Flap Retraction Altitude
• XTK — Crosstrack
• ACDMD — Air Collaborative Decision Making Demonstrator
• RTRD — Remote Tower Radar Display
• EFDP — European flight data processing(Eurocontrol)
• ATARS — Automatic Traffic Avoidance and Resolution System
• ANE — New England Region
• IANC — International Airline Navigators Council
• AJE — En Route & Oceanic Service, Air Traffic Organization
• CSER — Contractor Site Engineering Report
• MOA — Memorandum of Understanding
• HTZ — Helicopter Traffic Zone
• CFMU — Central Flow Management Unit
• IFPP — Instrument Flight Procedures Panel
• STCA — Short Term Conflict Alert
• VCR — Visual Control Room
• MACS — Multiple Access Communications System (Netherlands & FRG)
• SIR — Screening Information Request
• EFL — Estimated Flight Level
• JIT — Joint Implementation Team
• JPDO — Joint Planning and Development Office's
• CRO-ALPA — Croatian Air Line Pilots Association
• CAEE — Committee of Aircraft Engine Emissions
• ACE — Central Region
• ATNP — Aeronautical Telecommunications Network Panel
• RAC — Rules of the Air and Air Traffic Services

• ASDE — Area Surveillance Detection Equipment
• SBT — Scenario-Based Training
• INTC — Intercept
• ESE — East-South-East
• ARASCNAC — Air traffic services Routes for Aircraft with Self-contained Navigational Capabilities
• IPG — Integration Project Group
• AAT — Associate Administrator for Air Traffic
• FPP — Flight Plan Processing
• MEB — Main Earthing Bar
• ISB — Independent Sideband
• FIO — Flight Inspection Office
• SS — Sunset
• CZM — Conventional Zero Meridian
• AOWIR — Aircraft Operator What-If Re-routing
• DEG — Data Environment Generator
• IEPR — Integrated Engine Pressure Ratio
• ALR — IFALPA's Airport Liaison Representative Program
• AAA — Aesean Airline Association
• DEI — Directorate EATCHIP Implementation
• ALCC — Airlift Central Co-ordination Centre
• MDCRS — Metereological Data Collection and Reporting System
• PPR — Prior Permission Required
• FITS — FAA/Industry Training Standards
• CTAM — Climb to and Maintain
• SCAA — Swedish Civil Aviation Administration
• PHARE — Program for Harmonized ATC Research in Europe
• BWP — Budget and Work Programme Planning
• LIH — Light Intensity High
• NMAC — Near Mid-Air Collision
• UAC — Upper Area Control
• ERSS — Eurocontrol Radar Surveillance Standard
• LFC — Air Defence Centre
• IFEA — In-Flight Emergency Assistance
• AITSC — Administrative IT Steering Committee
• ACO — Airspace Co-ordination Order
• RCO — Remote Communications Outlet
• RTFM — Regulated Tactical Flight Model
• DPDG — Diplomatic and Protocol Drafting Group
• CAMI — Civil Aeromedical Institute
• I/A — Incident Analysis
• AISC — Aeronautical Industry Service Communication
• DGB — Dangerous Goods Board
• ADSIM — Airfield Delay Simulation Model
• CAI — Contractor-Acceptance Inspection
• AVPAC — aviation VHF packet communications
• ATCBI — Maintenance of Air Traffic Control Beacon Indicator
• PARI — Precursor, Action, Result, Interpretation
• ESERN — East-Southeastern
• FMS — Flight management system
• NAT ATMG — North Atlantic Air Traffic Management

• HIPERLAN — High Performance Local Area Network
• BRT — Brightness
• CRAFS — Civilian Request for Airspace and Flight Data System
• ACE — Allied Command Europe's
• JAC — Joint Airmiss Committee
• CPL — Commercial Pilots License
• AJP — Operations Planning Services, Air Traffic Organization
• GRAF — Ground Replay and Analysis Facility
• WMSC — Weather Message Switching Center
• ACN — Airspace Co-ordination Notification
• EAT — Expected Approach Time
• MIDAS — Man-Machine Integration Design and Analysis System
• GIB — Global Navigation Satellite System Integrity Broadcast
• REGIS — Regional Information System
• ATFC — Air Traffic Flow Controller
• E-MSAW — En Route Automated Minimum Safe Altitude Warning
• ASP — Arrival Sequencing Program
• USOAP — Universal Safety Oversight Audit Program
• ANC — Alternate Network Connectivity
• RCDS — Radio Channel Distribution and Switching
• IAR — Investment Analysis Report
• AISAS — Aeronautical Information Services Automated System
• LDT — Logistic Delay Time
• AGATE — Advanced General Aviation Transport Experiments (NASA)
• TA — Traffic Advisory
• PNGAPA — Papua New Guinea Air Pilots Association
• ATV — Associazione Tecnici di Volo Aviazione Civile
• EDS — Enterprise Database System
• CAUTRA — Automated Computer System for Air Traffic
• XY — Ryan Air
• FSTS — Federal Secure Telephone Service
• RATCF — Radar Air Traffic Control Facility
• SAFI — Semi-Automatic Flight Inspection
• VCS — Voice Communications Systems
• EIM — Enosis Iptamenon Michanikon
• MMPI — Minnesota Multiphase Personality Inventory
• AAA — Airport Airspace Analysis
• HID — Host Interface Display
• CMB — Combined
• ESEC — En Route Broadband Secondary Radar
• MTA — Military Training Area
• FP — Free Pratique
• VDL — Very High Frequency Data Link
• ATIS — Aerodrome Terminal Information Service
• MS-DTS — Medium Speed-Data Transmission System
• VLS — Lowest Selectable Airspeed
• NB — NorthBound
• ALR — Alerting message
• AERA — Automated Enroute ATC
• AAG — AIS Automation Group

• AMOSA — Association of Aviation Maintenance Organisations of Southern Africa
• ALPL — Association Luxembourgeoise des Pilotes de Ligne
• BASIC — Basic Contract Observing Station
• CDTS — Console Detailed Technical Specification
• CFCS — Central Flow Control Service
• IVRS — interim voice response system
• DVRS — Digital Voice Recorder System
• ECVFP — Expanded Charted Visual Flight Procedures
• AUTODIN — DoD Automatic Digital Network
• RTP — Regional Transportation Plan
• RTHL — Runway Treshold Light
• IKBS — Intelligent Knowledge Based System
• LRR — Long Range Radar or Low Cost Radar
• FDMA — Frequency Division Multiplex Access
• ATCGRAM — Illustration in graph form of the main functional
• IDAT — Interfacility Data
• IFG-NME WG — Implementation Facilitation Group of the National Management Experts Working Group
• IFP — Instrument Flight Procedures
• ACYC — Anticyclonic
• NTAP — Notice to Airman Publication
• FIAT — First Installed Article Test
• AOCU — aircraft operator control unit
• DOI — Department Of Industry
• GAAA — General Aviation Activity and Avionics
• WX DEF — Weather Deviation
• CALPA — China Airline Pilots Association
• ECAM — Electronic Centralised Aircraft Monitoring
• PRL — Pilot Request, Level
• CDD — Corporate Data Dictionary
• IMO — International Maritime Organisation (UN)
• PFAST — Passive Final Approach Spacing Tool
• LRC — Long Range Cruise
• RCAT — Route Catalogue
• PTOT — Provisional Take-Off Time
• ASPLAB — Asociacion Sindical de Pilotos del Lloyd Aereo (Bolivia)
• SVRWX — Severe Weather
• DGRS — Dangerous Goods Regulations
• IFPPS — Integrated Flight Plan Processing System
• LFV — Luftfartsverket
• VLOF — Lift-off Speed
• DLAP — Data Link Applications Processor
• CNACC — Common National Area Control Centre
• HAI — Helicopter Association International
• IAL — Instrument Approach and Landing
• ALO — Aviation Logistics Organization
• RPR — Re-Routing Proposal Message
• V/M — Volts-per-meter
• RWP — Real-Time Weather Processor
• RFF — Rescue and Fire Fighting
• TEN-T — Trans- European Network - Transport

• EHSAT — European Helicopter Safety Analysis Team
• GAR — Go-Around
• COBALT — Common Objective Alignment Team
• SAGSTRAM — Standing Advisory Group on the Safe Transport of Radioactive Material
• CAOFA — Co-ordination of Air Operations in the Forward Area
• APB — APATSI Project Board
• CMA — Central Monitoring Agency
• CFEP — Communications Front End Processor
• IAC — Integrated Avionics Computer
• NRCS — National Radio Communications Systems
• GMCC — General National Airspace System Maintenance Control Center
• ARSA — Airport Service Radar Area
• IUCM — IFPS Unit Configuration Manager
• EWT — EATMS Working Team
• EARTS — Enroute Automated Radar Tracking System
• RRCS — Remote Radio Control System
• AQAFO — Aeronautical Quality Assurance Field Office
• SUR — Surveillance
• EQUATOR — Environment for Qualitative Temporal Reasoning
• ALPA-M — Airline Pilots Association - Malta
• MALSF — Medium-Intensuty Approach Light System with Sequenced Flashers
• NEAN — North European ADS-B Network
• SBGP — State Block Grant Program
• DED — Directorate of European Air Traffic Control Harmonisation and Integration Programme Development
• ASPP — Aeronautical Fixed Service Systems Planning for Data Interchange Panel
• CMOS — Complementary Metal Oxid Semiconductor
• ADS-B — Automatic Data Surveillance Broadcast
• RMCS — Remote Monitoring and Control System
• NAILS — National Airspace Integrated Logistics Support
• RCP — Radio Control Panel
• MKR — Marker Radio Beacon
• X.25 — Packet Switched Data Network
• IІSLS — Improved Interrogation Side Lobe Suppression
• ACIPLA — Asociacian Civil de Pilotos de Lineas Aereas
• FO(IFO) — Fuel Oil/Intermediate FO
• VX — Speed for best angle of climb
• RMU — Radio Management Unit
• STVAC — Sindicato dos Tecnicos de Voo da Aviacao Civil
• MCDU — Multipurpose Control Display Unit
• PROG — Progress Page on MCDU
• LDR — Labor Distribution Reporting
• BECA — Belgium Cockpit Association
• NPA — Non Precision Approaches
• CAAS — Certification of Aeroplane Automatic Systems
• HIPS — Highly Interactive Problem Solver
• SFMC — Sickness Fund Management Committee
• AID — Airport Information Desk
• NSE — Navigation System Error
• FHA — Functional Hazard Assessment
• FIC — Flight Information Centre

• AFER — Aircraft Fuel Expense Reconciliation System
• FGS/C — Flight Guidance System/Computer
• AISU — Aeronautical Information Service Unit
• TI — Texas International
• SIE — Standard Interface Equipment
• VOT — VOR airborne equipment test facility
• IWP — Intermediate Waypoint
• ARTAS — Air Traffic Management Surveillance Tracker and
• MTR — Military Training Route
• SELF — Simplified Short Approach Lighting System With Sequenced Flashing Lights
• ARCTR — Aeronautical Center
• ADTN2000 — Administrative Data Transmission Network 2000
• MTAC — Multiple Time Around Clutter
• SSPA — Solid State Phased Array
• MATSE — Meeting on the Air Traffic System in Europe
• SAS — Scandinavian Airline Systems
• HERA — Human Error in ATM
• PFLEXT — Probability of Failure Localisation, external
• EBC — Event Based Currency
• FALPA — Fiji Air Line Pilots Association
• AUTOB — Automatic Weather Reporting System
• PSC — Program Support Center (US DHHS)
• ROT — Runway Occupancy Time
• NATINAD(S) — NATO Europe Integrated Air Defence
• WPL — Work Package Leaders
• C/M — Carrier-to Multi-Path Ratio
• MECACON — Middle East Civil Aviation Conference
• CAN PROJ. — Croatian Air Navigation Project
• ADSIA — Allied Data Systems Interoperability Agency
• EICAS — Engine Indicating Crew Alerting System
• IFFN — Identification Friend, Foe or Neutral
• FISC — Flight Information Services Communications
• CARAT — Center for Aviation Research and Aerospace Technology
• ACR — FAA Office of Civil Rights
• BA — Barometric Altitude
• MBR — Mittel-Bereich radar
• CAL — Computer Aided Learning
• SARP — Signal Automatic Radar Processing
• EASS — European Aviation Safety Seminar
• EAA — European Aviation Agency
• OM — Outer Marker (ILS)
• GGCS — Ground/Ground Communication System
• EACG — European ATFM Consultation Group
• DLH — Deutsche Lufthansa
• RIIEP — Runway Incursion Information Evaluation Program
• DAAIS — Danger Area Activity Information Service
• JRC — Joint Resources Council
• CMCSG — Civil and Military Co-ordination Sub-Group
• EFPS — External Front Processing System
• SVN — Satellite Vehicle Number

• AO — Airlines Operator
• NDB — Non-directional radio beacon
• CASFO — Civil Aviation Security Office
• FOMS — Flight Operations Management System
• AFSOU — AFS Field Office Unit
• COSP — Connection-Oriented Session Protocol
• OATS — Office Automation Technology Services
• KECU — Thousands of European Currency Units
• EIU — Electronic Interface Unit
• AIPN — Appointing authority
• CMMC — Common Maintenance Monitoring and Control
• HBN — Hazard Beacon
• ETMS — Enhanced Traffic management Systems
• NCD — No Computed Data
• CPCS — Certified Professional Controllers
• EGERIA — Engineering Group for European Integration ATC
• BTEC — Business and Technician Education Council
• FDR — Federal Data Registry
• BIP — Backup Interface Processor
• DORA — Directorate Operational Research and Analysis
• KIAS — Knots Indicated Airspeed
• FDPD — Flight Data Processing and Distribution
• LM/MS — Low/Medium Frequency
• LEN — Lenght
• ALSIP — Approach Lighting System Improvement Plan
• SAGA — System Safety Approach for General Aviation
• BUEC — Back-up Emergency Communications
• PAD — Packet Assembler Disassembler
• ACC-TC — ACC Tactical Controller
• RCAG — Remote Communication Air/Ground Facility
• TDH — Training Development and Harmonisation
• EFPD — Extended Flight Plan Description
• M/V — Motor Vessel
• IAC — International Advisory Committee
• FMPG — Air Traffic Flow Management Planning Group
• HDBK — Handbook
• CAPSIN — CAA Packet Switched Integrated Network
• DABBS — DITCO Automated Bulletin Board System
• BARS — Behaviour Anchored Rating Scales
• IPMS — IT Program Management System
• GTPAPC — Grupo Tecnico de Pilotos Aviadores Profesionales de Cuba
• SR&O — System Requirements and Objectives
• CMIP — Contract Management and Inspection Procedures
• AOU — Aircraft Operator Unit
• WSR — Wet Snow on Runway
• DEWIZ — Distance Early Warning Identification Zone
• EBAA — European Business Aviation Association
• JU — JAT – Yugoslavian Airlines
• FOTS — Fiber Optics Transmission System
• MIW — Message in Window

• ISO — International Standards Organisation
• CSI — Criticality Safety Index
• SRG — Safety Regulation Group
• ARTEMIS — An ESA experimental telecommunications
• ETOT — Estimated Take Off-Time
• PAA — Plot Accuracy Analysis
• HATR — Hazardous Air Traffic Report
• CTSKLS — Catskills
• DSB — Double Side Band
• DERD-X — Display of Extracted Radar Data - Extention
• CAWU — Civil Aviations Workers Union
• PANS — Procedures for Air Navigational Services
• ADVO — Administrative Voice
• FRONT — Frontispiece
• RCE — Radio Control Equipment
• RSA — Runway Safety Area
• RCCC — Regional Communications Control Center
• IBP — International Boundary Point
• LRM — Line Replacement Modules
• PCATD — Personal Computer-Based Aviation Training Device
• M/T — Medium-Term
• DSP — Departure Sequencing Program
• FEAST — First European ATCO Selection Test Package
• RLSM — Reduced Lateral Separation Minimum
• CPI — Californian Psychological Inventory
• DPA — Distinguishing Path Attribute
• TO NL — Takeoff Engine Fan Speed
• AMOC — Alternative Methods of Compliance
• FFI — Final Factory Inspection
• SEU — Software Engineering Unit
• OFIS — Operational Flight Information System
• RNPTF — Required Navigation Performance Task Force
• GDM — Graphical Information Category Dynamic Maps
• AMPL — Association Marocaine de Pilots de Ligne
• RGS — Remote Ground Station
• AAA — Asian Airliners Association
• REA — Ready Message
• PPIMS — Personal Property Information Management System
• ICW — Intercoastal Waterway
• FO — Flight Object
• ERFA — Conference on the Economics of Route Air
• CUP — Computer Utility Program
• TYP — Aircraft Type
• IAOPA — International Council of Aircraft Owner and Pilot Associations
• APANPIRG — Asia/Pacific Air Navigation Planning and Implementation Regional Group
• AIRCOM — Aircraft Communications
• CGAS — Coast Guard Air Station
• DDA — Dedicated Digital Access
• AISS — Aeronautical Information Server System
• FO — Free Out

• ARINC 533A — Airborne HF SSB/AM System
• TOA — Terms Of Agreement
• VFRG — Visual Flight Rules Group
• G/S — glideslope
• AIREP — Air-Report
• TWN — Tactical Weather Network
• MASS — Maintenance Automation System Software
• FWCS — Flight Watch Control Station
• IPPC — Internet Pilot Planning Centre
• TTR — Target Tracking Radars
• F/G — Foreground
• MFT — Meter Fix Crossing Time/Slot Time
• RNC — Required Navigation Capability
• LAWRS — Limited Aviation Weather Reporting Station
• FIRMR — Federal Information Resource Management Regulation
• CRCO — Central Route Charges Office
• PRQ — Pilot Request
• FPF — Flight Plan Fallback
• DCPC — Direct Controller-Pilot Communications
• DLSG — Data Link Sub Group
• ALPA — Asociacion de Pilotos de Lineas Aereas
• VAQ — VHF Avionics Qualification
• ODID — Operational Display and Input Development
• FRH — Fly Runway Heading
• ETFMS — Enhanced Tactical Flow Management Systems
• AIRMET — Airmen's Meteorological Information
• OFL — Off-Line
• ARTAS TF — ARTAS Task Force
• FIRPS — Flight Inspection Reports Processing System
• ATFMO — Air Traffic Flow Management Organisation
• TSA — Temporary Segregated Area
• OV — Overseas National Airways
• NBAA — National Business Aircraft Association
• CEFA — Committee for Environmentally Friendly Aviation
• PIS — Performance Indicators
• CMA — Context Management Application
• ANSPS — Air Navigation Service Providers
• ACRPWG — Aircraft Crash Recovery Procedures Working Group
• ARTES-9 — Advanced Research in Telecommunication
• CNSP — Consolidated NOTAM System Processor
• LVA — Large Vertical Aperture
• DGP — ICAO Dangerous Goods Panel
• CLBR — Calibration
• ATI — Automatic Tracking Initiation
• DASR — Digital Airport Surveillance Radar
• FEATS — Future European Air Traffic System
• VSP — Variable System Parameter
• EVFR — Electronic Visual Flight Rules
• CDR — Cost Detail Report
• NFP — NIMS Premier Facility

• ATOP — Advanced Technologies and Oceanic Procedures
• ATMG — Airspace and Traffic Management Group
• DNAS — ECAC Directors of Air Navigation
• LAU — Local Approach Unit
• IPDS — Instrument Procedure Development System
• GANP — Global Air Navigation Plan
• GNAS — General National Airspace System
• BRNAV — Basic Air NAVair Traffic Control Unit
• HA — Hatch
• BAD — Budget Analysis Database
• ISSCA — Information Systems Security Certification Agent
• FNPT — Flight & Navigation Procedures Trainer
• OPSW — Operational Switch
• IMPL — Implementation Language
• BASIS — British Airways Safety Information System
• WPP — Working Position Processor
• IASS — International Air Safety Seminar
• IAPA — International Airline Passengers Association
• MBT — Maneuvers Based Training
• CHART — A map used by navigators
• ACH — ATC Flight Plan Change
• CRM — Crew Research Management
• ATCCC — Air Traffic Control Command Centre
• SAAM — System for Assignment and Analysis at a Macroscopic level
• AGC — FAA Office of the Chief Counsel
• EATMP — The European Air Traffic Management Programme
• RNMP — Replacement of the Nautical Mile Panel
• IAMP — Initial Approach Waypoint
• FARM — Fielded Automation Requirements Management
• TASC — The Analytical Science Corporation
• CAPC — Civil Aviation Planning Committee
• OHP — Over Head Projector
• DDL — Data Description Language
• DEMETER — Distance Measuring Equipment Tracer
• MSRT — Mean Services Restoration Time
• TUI — Trade Unions International of Transport Workers
• BPB — Business Plan Builder
• CSTA — Chief Scientist and Technical Advisor
• URTF — User Requirements Task Force
• TCWP — Threshold Crossing Way-point
• DNL — Day-Night Equivalent Sound Level
• NZ-ALPA — New Zealand Air Line Pilots Association
• CAMPS — Computer Aided Message Processing System
• EBP — Emergency Bypass Processor
• ICIP — Inital CIP
• QHN — Altimeter Sub-scale setting
• JSSI — Joint Safety Strategy Initiative
• VSA — By Visible reference to the ground
• EPD — EATCHIP Planning Division
• ALMC — Airlift Movement Cell

• FDEP — Flight Data Entry and Printout
• ANT — Airspace and Navigation Team
• ARLO — Air Liaison Officer
• DDM — Data Display Monitoring
• IFA — International Federation of Airworthiness
• XPD — ATC Transponder
• IARR — IFPS ARR Message – Individual Arrival Message
• VSD — Vision and Strategy Document
• TTW — Time To Waypoing
• HLDC — High Level Data Link Control
• CPU — Core Processing Unit
• MAP — Missed APproach
• R/T — Radio Telephonic Transmission
• XM — External Master
• IALPA — Irish Air Line Pilots Association
• MFJ — Modified Final Judgment
• OAW — Off-Airway Weather Station
• AW/P — Active Way Point
• MCAS — Marine Corps Air Station
• DAFIS — Departmental Accounting and Financial Information System
• HUGS — Head-Up Guidance Systems
• ISPACG — Informal South Pacific Air Traffic Services Co-ordinating Group
• AIM-FANS — Airbus Interoperable Modular FANS
• LISREL — Linear Structural Relations
• TWDL — Two-Way DataLink
• WINDMG — Wind Magnitude
• SNOMAC — Syndicat National des Officiers Mecaniciens de l'Aviation Civile
• FAIRS — Federal Aircraft Management Information System
• HWP — Holding Waypoint
• CFII — Certified Flight Instructor Instrument
• MOPS — Minimum Operational Performance Standards
• RTC — Radio Transmission Control
• PGP — Planning Grant Program
• DFL — Division Flight Level
• IFPD — Individual Flight Plan Data
• AOCC — aircraft operator control centre
• MLS — Microwave Landing Systems
• EFR — Extended Flight Rules
• S/C — Step Climb
• SBSR — Space Based Secondary Radar
• DOVE — DSR Oceanic VSCS En Route Implementation Working Group
• AEROSAT — Aeronautical Satellite Council
• MLD — Military Liaison Division
• ATG — Air Traffic Generator
• SRQ — Slot Request
• IFP — Integrated Flight Plan System
• DR — Dead Reckoning Navigation
• AFL — Assigned Flight Level
• TBS — Telephone Back-up System
• C/D — Capacity demand ratio

• RAPCO — Radar Approach Control
• SESMA — Special Event Search and Master Analysis
• FWS — FAA Weather Service
• SHACC — SHAPE Airspace Coordination Centre
• MLE — Landing Gear Extended Placard Mach Number
• CE — European Commission
• ATFR — Air Traffic Flow Regulator
• MIDO — Manufacturing Inspection District Office
• DRU — Data Retrival Unit
• OPD — Optimum Profile Descent
• LIS — Logistics and Inventory System
• VA — Heading to an Altitude
• IFIM — International Flight Information Manual
• IAPL — IFPS APL Message
• MNCC — Multinational Coordination Centre
• FED — Fonds Europ?en de D?veloppement
• IACSC — Improved Airworthiness Communications Steering Committee
• ADIN — AUTODIN Service
• DSCS — Digital Satellite Compression Service
• GNLS — GNSS Navigation and Landing System
• AQM — Aircom Quality Performance
• HASA — Helicopter Association of Southern Africa
• LATCC — London Air Traffic Control Centre
• VNV — Vereniging van Nederlandse Verkeersvliegers
• SMI — Special Message Identifier
• DSR — Display System Replacement
• PZ 90 — Parameters of Earth 1990
• FFTF — Future Functions Task Force
• IASA — International Air Safety Association
• HDB — Historical Data Base
• CEFA — Co-operation for Environmentally Friendly Aviation
• ARA — Administrator for Research and Acquisition
• FRC — Request Full Route Clearance
• PCN — Project Control Number
• GWDS — Graphic Weather Display System
• RVSM — Reduced Vertical Separation Minima
• PDAR — Preferential Arrival And Departure Route
• OFDPS — Offshore Flight Data Processing System
• M1FC — Model 1 Full Capacity
• BDAT — Digitized Beacon Data
• KVDT — Keyboard Video Display Terminal
• TSE — Total System Error
• JL — Japan Air Lines
• RSC — Rescue Sub Centre
• FINO — Flight Inspection National Field Office
• HARS — High Altitude Route System
• ASD — Air Situation Display
• PCA — Propulsion Controlled Aircraft
• RDL — Radial
• CPAR — Cockpit Personnel Association of Russia

• EHF — Extremely High Frequencies
• FI — Iceland Air
• GNE — Gross Navigational Error
• AGAS — European Action Group for ATM Safety
• DE-TO NL — Derated Takeoff Engine Fan Speed
• MCDU — Multifunction Control Display Unit
• FCPU — Facility Central Processing Unit
• CALM — Computer Assisted Landing Management System
• DEFAMM — Demonstration Facilities for Airport Movement Management
• MTCA — Medium Term Conflict Alert
• VTOL — Vertical Takeoff And Landing
• KCAS — Calibrated Airspeed expressed in Knots
• CFB — Central Flight plan Bank
• CMIS — Certificate Management Information System
• SOIR — Simultaneous Operations on Intersecting Runways
• GHMI — Ground Human-Machine Interface
• GA — go-around
• CLTP — Connection Less Transport Protocol
• GAA — General Aviation Activity
• CTU — Cabin Telecommunications Unit
• ODETE — On-Line Data Exchange Terminal
• ALSEC — All Sectors
• LIALPA — Leeward Islands Air Line Pilots' Association
• EUROCAE — European Organisation for Civil Aviation Equipment
• RW — Runway
• EAMG — European ATFM Management Group
• HUMR — Human Resources
• VTR — Variable Takeoff Rating
• TT — Total Temperature
• ESDF — Environmental Static Data Processing and Distribution Function
• FSFO — Flight Standards Field Office
• IVT — Interactive Video Teletraining
• WTR — Water on Runway
• SATCNS WG — Satellite CNS Work Group
• SSDD — Sub System Design Document
• MNC — Major NATO Command (NATO)
• RDDII — Radio Digital Distance Magnetic Indicator
• TNH — Turn Height
• EPCM — Enhanced Planning Control Message
• LINCS — Leased Interfacility NAS Communications System
• FTS2000 — Federal Telecommunications System 2000
• CVSRF — Crew-Vehicle Simulation Research Facility
• HBF — Harmless Bulk Fertilizer
• ATREP — Air Traffic Representative
• VFXR(X) — Flap Extension Speed
• NADIN II — National Airspace Data Interchange Network II
• ARS — Aeronautical Radio Navigation Service
• ADUG — Airport Database User Group
• RMSPV — RMS peak value.
• SFPL — Short Flight Plan

• CYG — Cyclonic
• NAMS — NADIN IA
• GMD — General Meeting of Directors
• HDLC — High Level Data Link Communication
• FAPM — FTS2000 Associate Program Manager
• CRC — Control and Reporting Centre
• KAL — Korean Airlines
• CTAS — Center-TRACON Automation System
• SUC — Start-Up Controller
• FRF — Further Route of Flight
• PTR — Program Technical Report
• LOW — Last Open Water
• FFLA — Flexible Flight Level Assignment
• ADI — Attitude Director lndicator
• CANDI — Civil Aviation Network Data Interchange
• ERABIS — Route Invoicing System
• LDA — Landing Distance Available
• EHR — Restricted Area
• DFM — Departure Flow Management
• ESCAPE — Eurocontrol Simulation Capability and Platform for Experimentation
• WPN — First waypoint in the next sector
• HCAA — Hellenic Civil Aviation Authority
• TMZ — Transponder Mandatory Zones
• MDT — Maintenance Data Terminal
• HEO — Highly-inclined Elliptical Orbit
• SAVES — Strategic Sourcing for the Acquisition of Various Equipment and Supplies
• VAR — Variation
• PAMS — Published AIP Management Systerm
• CARAT — Computer-Aided Route Allocation Tool
• ATR — Air Traffic Requirements
• FIXING — Chartering a Vessel
• FIG — Flight Inspection Group
• SCAP — System Certification and Accreditation Package
• QDM — Magnetic zero wind heading
• RCL — Radio Communications Link
• ICMS — Integrated Control and Monitor System
• CATTS — Computerized Air Traffic Training System
• JAA — Joint Aviation Authority
• ER — En-Route
• ATCAP — Air-Traffic Control Automation Panel
• EPS — Engineered Performance Standards
• PATCO — Professional Air Traffic Controllers Association
• ATHR — Autothrust System
• APPLA — Associacao Pilotos Portugueses Linha Aerea
• NASR — National Airspace System Resources
• VIVO — Visualisation des Vols Océaniques
• DME/P — Precise DME
• VHF — Very-High Frequency
• TTALPA — Trinidad & Tobago Airline Pilots' Association
• ERIT — Enhanced Radar Intelligent Tool

• FENA — Flight Engineers and Navigators Association
• PTT — Press to Talk
• AAP — IFALPA Accident Analysis & Prevention Committee
• NPM — NAS Program Manager/Management
• RPZ — Runway Protection Zone
• ACT — William J. Hughes Technical Center
• MUSAC — Multiple Switching and Confirming
• VSIG — Vertical Separation Implementation Group
• DEE — Data Entry Equipment
• FASC — FAA Aviation Safety Center
• COSU — Core Systems Unit
• LBR — LAN Based Random Access Plan Position Indicator
• ERMS — Environmental Remote Monitoring System
• CSS — Central Site System
• EFS — Extended Flight Store
• KSN — Knowledge Services Network
• MONA — Monitoring Aids
• OMD — Operational Management Domain
• X25 — Standard protocol in telecommunications
• CZ-ALPA — Czech Air Line Pilots Association
• R1 — Minor Repairs
• ALB — Alternative Label
• NDNB — NADIN II
• FMIS — FTS2000 Management Information System
• SOP — Standard Operating Practice
• EPAC — Eurocontrol Programme Appraisal Committee
• RML — Radar Microwave Link
• ANS — Air Navigation Service
• CRAF — Central Reservation Airspace Facility
• CTA — Controlled-Time of Arrival
• AUTOVON — DoD Automatic Voice Network
• COSCAP — Cooperative Development of Operational Safety and Airworthiness Activities
• FRD — Facility Reference Data
• VMAX — Basic Clean Aircraft Maximum CAS
• AUS-ALPA — Australian Air Line Pilots Association
• HFIAI — Human Factors in Incident and Accident Investigation
• FPM — Flight Progress Message
• LTSS — Long Term Systems Studies
• FDDI — Fiberoptical Digital Data Interchange
• TOS — Traffic Orientation Scheme
• NPIAS — National Plan for Integrated Airport Systems
• CCCH — Central Computer Complex Host
• ECAR — European Civil Aviation Requirement
• MNPSA — Minimum Navigation Performance Specification Airspace
• RBC — Rotating Beam Ceilometer
• PROSIT — Problem Situation
• EVAS — EATMS Validation Strategy
• LDIN — Lead-in Lights
• AGE — IFALPA Aerodrome & Ground Environment Committee
• AFRES — Air Force Reserve Station

• CNATCC — Common National Air Traffic Control Centre
• FPT — Flight Plan Terminal
• JPEG — Joint Photographic Expert Group
• CIR — Cockpit Image Recorders
• FSEP — Facility, Service, and Equipment Profile
• NOM — NAS Operations Manager
• RAT — Risk Assessment Team
• CMS — Common Modular Simulator
• DEEC — Director of the Eurocontrol Experimental Centre
• OPB — Outer Performance Boundary
• EPMB — EASIE Programme Management Board
• RPF — Rapid Prototyping Facility
• ANM — Northwest Mountain Region
• ODID — Operational Input and Display System
• ATAFG — African Air Traffic Analysis and Forecasting Group
• WRC — World Radio-communications Conferences
• LWG — Licensing Work Group
• FPS — Military Primary Radar
• AIRCOM — Air Communications
• LACAC — Latin American Civil Aviation Commission
• SPS — Sensor Processing Subsystem
• NATMC — NATO Air Traffic Management Committee
• FAMIS — Federal Air Marshal Information System
• SUP — Supplement
• VVD — Vertical View Display
• NODE — NATS Operational Display Equipment
• METODA — Meteorological Observations and Information Distribution Arrangements for Local Aeronautical Users
• INTERPOL — International Criminal Police Organisation
• MTCEP — Medium Term Capacity Enhancement Plan
• GOMS — Goals, Operators, Methods, Selection model
• SOF — Stand-alone Operations Facility
• TMA — Terminal Area
• AWTT — Aviation Weather Technology Transfer
• ALIM — Altitude Limit
• CLEEN — Continuous Lower Energy Emissions and Noise
• FLDS — Flight Loads Data System
• HEL — IFALPA Helicopter Committee
• EARC — Elimination of Ambiguity in Radiotelephony Call Signs
• ICMM — Integrated Capability Maturity Model
• CF — Change frequency to
• IFCP — Interfacility Communications Processor
• DGPS — Differential GPS
• SRAP — sensor receiver and processor
• FDG — Flight plan Data Generator
• ELM — Extended Length Message
• ARM — Air Request Message
• NR — Noise Rating
• ATAR — Automatic Air Reporting
• FIAO — Flight Inspection Area Office
• ASV — Airline Schedule Vendor

• U/S — Unservicealble
• TALPA — Turk Hava Yallair Pilotlari Dernegi
• RASP — Radar Application Specialist Panel
• RIRT — Russian Institute of Radio Navigation and Time
• LIP — Limited Installation Program
• FADE — FAA/Airline Data Exchange
• PAAST — Pan American Aviation Safety Team
• MTAT — Multiple Time Around Targets
• NAT ADS — North Atlantic Automatic Dependent Surveillance
• MMAC — Mike Monroney Aeronautical Center
• REDAC — Research, Engineering and Development Advisory Committee
• FIS — Flight Information Services
• GOMP — Gulf of Mexico Program
• ODP — ATM Operational Requirements & Data Processing
• BARTCC — Berlin Air Route Traffic Control Centre
• EIF — Extended Interface Function
• EPB — EATCHIP Project Board
• DALPA — Danish Air Line Pilots Association
• ATMCP — Air Traffic Management Operational Concept Panel
• ARN-V2 — ATS Route Network - Version 2
• PS — Pacific Southwest Airways
• PIDP — Programmable Indicator Data Processor
• OCDB — Oracle Content Database
• OUNS — Operational Navigation System
• CMIC — Civil-Military Interface Standing Committee
• IR — Ice on Runway
• FRP — Fares and Rates Panel
• IAS — Indicated AirSpeed
• WEAAP — Western European Association for Aviation Psychology
• IND — Indication
• AP — Airport Protection
• OTFP — Operational Traffic Flow Planning (aviation)
• ENAV — En Route Navigational Aids
• MNTN — Maintain
• CPR — Conflict Prediction and Resolution
• AWS — Air Weather Station
• MAPE — Mean Absolute Percentage Errors
• LFA — Local Flying Area
• FDE — Flight Data Exchange
• VLO — Maximum Landing Gear of Operating Speed
• RCAG — Remote Communications Air/Ground
• MIO — Manufacturing Inspection Office
• CAN — Committee on Aircraft Noise
• ERCG — External Relations Coordination Group
• CED — Categorical Exclusion Determination
• WIST — Study Group on Low Level Wind Shear Turbulence
• CARTS — Common Automated Radar Terminal System
• FFU — Fire Fighting Unit
• LAGPS — Local Area Global Positioning System
• ASTOR — Aircraft Simulation for Traffic Operations Research

• FI/P — Flight Inspection Permanent
• EWG — Executive Working Group
• HCI — Human Computer Interface
• NPE — Non-primary Airport Entitlement
• SNDCF — Subnetwork Dependent Convergence Facility
• NSSG — Navigation and Separation Sub-Group
• MUAC — Military Upper Area Control
• FI/T — Flight Inspection Tempray
• SATS — Simulator System for Air Traffic Services
• SEAC — Service d'Etat de l'Aviation Civile
• IWGDS — Interim Weather Graphic-Display System
• MIT — Miles-In-Trail
• ASO — Southern Region
• MSSA — Message Switching System
• ATODN — AUTODIN Terminal
• R/C — Rate of Climb
• ARN-V3 — ATS Route Network - Version 3
• RLB — Rolling Ball
• QFA — Qantas
• CNMPS — Canadian Minimum Navigation Performance Specification Airspace
• PSR — Project Status Report
• QNE — Altimeter subscale set to 1013,2 hectopascals
• CWO — Contract Weather Observer
• TLX — Task Load Index
• OSIP — Office Safety Inspection Program
• CNG — Common Network Group
• SMMC — System Maintenance Monitor Console
• IFD — Initial Functional Description
• DBCRC — Defense Base Closure & Realignment Commission
• DPC — Defence Planning Committee
• OPSP — Operational Panel
• CLOP — Criminal Liability of Pilots
• HFSG — Human Factors Study Group
• EGU — European Gliding Union
• API — Advanced Passenger Information
• COSYNUS — AIRBUS Training Database
• SRSG — Safety Regulation Sub-Group
• ESYS — En Route Equipment Systems
• FDMSAW — Fully Digital Minimum Safe Altitude Warning
• FIW — Flight Input Workstation
• IS-ES — Intermediate System - End System
• CIP — Convergence and Implementation Programme
• HIDE — Harmonised, Integrated Development Environment
• LIT-ALPA — Lithuanian Airline Pilots Association
• IGIA — Interagency Group on International Aviation
• MTTRLRU — Mean Time to repair LRU
• EPSU — European Public Service Union
• AFC — Air Traffic Control Frequency Change
• AOS — FAA Operational Support Service
• IRMP — Information Resources Management Plan

• VFOP — Visual Flight Rules Operations Panel
• FMO — Facility Management Office
• FPL — Filed Flight Plan
• CPC — Certified Professional Controller
• TWI — Terminal Weather Information
• ADTI — Additional Technical Information
• SDS — Sub Domain Server
• REDMACS — Research, Engineering, and Development Monitoring, Analysis and Control System
• FMS — Fathoms
• AWTA — Advise at What Time Table
• OOR — Outline Operational Requirement
• WSPD — Wind Speed
• ISC — Initial System Capability
• IOCS — Interim Oceanic Control System
• SNPL — Syndicat National des Pilotes de Ligne
• ARINC539A — Airborne 400 Hz AC Tape Reproducer
• ER-PC — En-Route Planner Controller
• NMCE — Network Monitoring and Control Equipment
• COCOS — Computer Controlled SSR Code Assignment
• JOT — Joint Operational Team
• CIMO — Committee for Instruments and Methods of Observation
• IPACG — Informal Pacific Air Traffic Services Co-ordinating Group
• FIRST — Flexible Independent Radar Skill Trainer
• OWN — TCAS II equipped aircraft - source of TCAS event
• PAEW — Personnel and Equipment Working
• IRAS — Interactive Radar Analysis System
• HAW — Horizontal Aid Window
• SCAA — Slovenian CAA
• CAM — Conflict Alert Message
• ERV — ECM Resistant Voice
• ACP — Accept Message
• AMC — Mike Monroney Aeronautical Center
• CWS — Collision Warning System
• OLS — Off Line System
• EPHOS — European Handbook for Open Systems
• DEVD — CFMU – Development Division
• EUROPILOTE — European Organisation or Airline Pilots Association
• GTM — General Terrain Model
• APM — Accident Prevention Manual
• CAMOS — Central ARTAS Maintenance & Operational Support
• DPE — Digital Plot Extractor
• ASW — Southwest Region
• FKFE — Forum Komunikasi Flight Engineers
• CRD — Conflict Risk Display
• STANLY — Statistics and Analysis
• EPSS — Enhanced Packet Switched Service
• ASC — Aviation Safety Council
• TFM — Traffic Flow Management
• AISG — AIS Automation Group
• ANCONF — Air Navigation Conference

• TXWY — Taxy Way
• VTK — Vertical Track Distance
• TMPA — Traffic Management Program Alerts
• TWG — Training Working Group
• NRP — National Route Program
• EAN — European ATSO Network
• RMPS — Radio Management Panels
• CENTX — Central Telephone Exchange
• FIPS — Federal Information Publication Standard
• SECM — Safety and Environmental Compliance Manager
• RDG — Radar Data Generator
• AOA — Aircrew Officers Association
• ISBP — Information Security Business Portal
• GLONASS — Global Orbiting Navigational Satellite System
• DAA — Dynamic Airspace Allocation
• AMC — Air Traffic Control Microphone Check
• COC — Combat Operations Centre
• JSP — Joint Services Publication
• CRE — Class Rating Examiner
• MU — Management Unit
• NAVAID — Navigation Aid
• NCOP — Entry Coordination Point
• HERAS — Hellenic Radar System
• SASP — ICAO Separation and Airspace Safety Panel
• IRPL — Internal Repetitive Flight Plan
• VG — Ground Velocity
• CFCF — Central Flow Control Facility
• LFHB — Low Flying Handbook
• SASS-S — Surveillance Analysis Support System - Sensor
• EIPA — European Institute of Public Administration
• FPWO — Flight Plan Work Station Operator
• TDM — Total Delay in Minutes
• EATF — EATMS Architecture Task Force
• CC&O — Customer Cost & Obligation
• CLNS — Connection-Less Network Service
• NAPRS — National Airspace Performance Reporting System
• OBS — omni-bearing selector
• SEL — Selected Environmental Library
• CP — Control Panel
• HERMES — Harmonised En-Route Metering and Spacing
• FDFM — Flight Data and Flow Management
• GERT — German NEAN Project Team
• NAPM — National Associate Program Manager
• HARA — Helicopter Airborne Radar Approaches Study Group
• FAR — Federation Aviation Regulations
• LFDS — Large Facility Demarcation System
• RCF — Remote Communications Facility
• MTN — Mega Transport Network
• CASI — CFMU Aircraft Situation Image
• FOW — First Open Water

• ATCOTS — Air Traffic Control Optimum Training Solutions
• DIR/INTC — Direct Intercept
• WSC — West Sector Co-ordinator
• HDR — Hardware Discrepancy Report
• OOD — Object Oriented Designer
• ICAAS — Integrated Control in Avionics for Air Superiority
• AEM — Airports & Environment Management
• PAMC — Provisional Acceptable Means of Compliance
• CLX — OCM Clearance Message
• UVA — Utility Value Analysis
• ERN — Earth Referenced Navigation
• IVSN — Initial Voice Switched Network
• IAOA — Indicated Angle-of-Attack
• OJTI — On-the-Job-Training Instructor
• XPDR — Transponder
• RCIU — Remote Control Interface Unit
• TWR — Air Traffic Control Tower
• TAR — Terminal Area Radar
• EMPS — En Route Maintenance Processor System
• VMP — Vertical Measurement Panel
• MMS — Maintenance Monitoring System
• FFAS — Free Flight Airspace
• DEMO — Demonstration of Ecosystem Management Options
• LIRL — Low Intensity Runway Lights
• ATAFF — Air Traffic Arbitrated Free Flight
• ATM — Air Transport Management
• KALPA — Kenya Air Line Pilots Association
• RMLS — Remote Monitoring and Logging System
• CREME — Creating the EATCHIP Management Environment
• LSMS — Line Station Maintenance Section
• VNE — never-exceed speed
• PFCS — Primary flight computer system
• NATCO — National Communications Switching Center
• JAR — Joint Aviation Requirements
• HTI — Human Technology Integration
• EGALPA — Egyptian Air Line Pilots Association
• IAP — Instrument Approach Procedures
• GAPAN — Guild of Air Pilots & Navigators
• IFOG — Interferometric Fiber Optic Gyroscope
• EHT — Extemely High Tension
• CASTA — Controller Associate for Strategic and Technical Advice
• SCAT — Supersonic Civil Air Transport
• NRC — Non-Recurring Charge
• FIB — Forward Information Base
• IPL — Intermediate Flight Plan
• ZNY — New York Air Route Traffic Control Center
• CAPA — Cayman Airline Pilots Association
• JAR — Joint Airworthiness Regulations
• EGATCM — Eurocontrol Guild of Air Traffic Controllers - Maastricht
• DOF — Digital Obstacle File

• IFFITAF — IFPS-DBE Functional Interface System Task-Force
• VSSG — Vertical Separation Sub-Group
• ANPAC — Associazione Nazionale Piloti Aviazione Commerciale
• BSP — Aircraft Parameter Downlink
• VM — Heading to a manual termination
• DLRS — Digital Legal Recording System
• RSOQ — Radar Stores Occupancy Query
• PRU — Performance Review Unit
• ISRAEL FE — Israel Flight Engineers
• IAARC — International Administrative Aeronautical Radio Conference
• DLAP — Down Linked Aircraft Parameters
• FDT — Flight Deck Training Program
• NOREP — National Oceanic Review and Enhancement Program
• IFE — In-Flight Entertainment
• ITC — in-trail climb
• JOINT — Joint Operational Incidents Training
• AOT — Airport Operations Team
• AIRSTRM — Assuring the Implementation of Regulations for the Safe Transport of Radio-active Materials
• AT — at an altitude
• ITID — Individual Training- Instructor-dependent
• CFC — Central Flow Control
• ERA — European Regional Airlines Organisation
• ATIF — ATN Trials Infrastructure
• W2 — World Airlines
• MTSAT — Multi-functional Transport Satellite
• MNPSA — Minimum Navigation Performance Specifications Airspace
• IPV — Instrument Approach with Vertical guidance
• DCD — Double Channel Duplex
• AISAP — AIS Automation Specialist Panel
• NTS — NOTAM Tracking System
• T/C — Top-of-Climb
• EDD — Electronic Data Display
• ECOM — En Route Communications
• GMS — Grants Management System
• FIT — Flight Integration Task
• WXXM — Weather eXchange Model
• ODT — Onboard Maintenance Terminal Display Unit
• AOWP — Airport Operations Work Plan
• TSRV — Transport System Research Vehicle
• OCS — Oceanic Control System
• RLMS — Replacement Lamp Monitoring System
• OMS — On-board Maintenance System
• IGS — International GPS Reference Network
• GIVD — Gravity Induced Vestibular Dysfunction
• PML — Project Material List
• IPSKY — Internet Technology in the Sky
• ECON — Economy
• VDEV — Vertical Deviation
• CPD — Coupled
• CEU-E — Central executive unit with Responsibility for Eastern Europe

• APB — Acquisition Program Baselines
• AFDSS — Air Fix Data Sub Set
• ITI — Italian Interface
• RMCC — Remote Monitor Control Center
• CRATF — Communications Requirements Analysis Task Force
• ATMRPP — ATM Requirements and Performance Panel
• EPIC — Extended PCM Interface Controller
• PDRP — Problem Detection and Resolution
• IHST — International Helicopter Safety Team
• SITNA — Service Technique de la Navigation Aérienne
• SPLA — Syndicat des Pilotes de Ligna Algeriens
• ONP — Open Network Provision
• MUDPIE — Multiple User Data Processing Interactive Environment
• CESC — Chief Executive Standing Conference
• EHQ — Eurocontrol Headquarters
• EVS — Enhanced Visual System
• VPD — Vertical Polar Diagram
• DEPCOS — Departure Coordination System
• SBT — Self-Briefing Terminal
• MISO — Manufacturing Inspection Satellite Office
• MSGDLP — Mode S Ground Data Link Processor
• SVS — Synthetic vision system
• TPA — Tanzania Pilots Association
• FIC — Finance Committee
• ODIAC-TF — Operational Development of Initial A/g data Communications Task Force
• MTCS — Modular Terminal Communications System
• ATSB — Air Transportation Stabilisation Board Australian Transport Safety Bureau
• NVFR — VFR by night
• ACR — Air Carrier
• FDM — Flight Data Message
• ATCAS — ATC Automated System
• PANS — Procedures for Air Navigation Services
• DGCA — Director-Generals of Civil Aviation
• FREER — Free-Route Experimental Encounter Resolution
• FACTS — Future Area Control Tools Support
• LX — Crossair
• ITSTC — Information Technologie Steering Committee
• DAISY — Distributed Airport Information System
• RRHS — Remote Reading Hydrometer
• ANT — Air Navigation Team
• TLPD — Traffic Load Prediction Device
• CLRS — Clear and Smooth
• ARLNO — Airline Office
• CWDPS — Central Weather Data Processing System
• FUA — Flexible Use of Airspace
• RTIS — Road Travel Information Services
• GNC — Global NAVCOM
• SSRC — Current SSR Code
• SIMMOD — Airspace and Airport Simulation Model
• FDFMG — Flight Data and Flow Management Group

• SICT — System Implementation Coordination Team
• PCA — Positive Control Airspace
• JSRA — Joint Sponsored Research Agreement
• FPDETF — Flight Plan related Data Exchange Task Force
• CSM — Consultant Services Meeting
• HWAS — Hazardous In-Flight Weather Advisory
• SMITF — Safety Monitoring and Improvement Task Force
• LCD — Liquid Cristal Display
• SEPLA — Sindicato Espanol de Pilotos de Lineas Aereas
• POT — Point-of-Termination
• RMCDE — Radar Message Conversion and Distribution Equipment
• MOPS — Minimum Operation Performance Standards
• ESARR — Eurocontrol Safety Regulatory requirements
• AVPAC — Aviation Very High Frequency Packet Communication
• NUP — NEAN Update Programme
• CUI — Committee on Unlawful Interference
• IAOPA — International Aircraft Owners and Pilots Associations
• DAP — download of aircraft parameter
• RLG — Ring Laser Giro
• VSCS — Voice Switching and Control Systems
• VDP — Visual Descent Point
• IPG — Indian Pilots Guild
• CMIC — Civil/Military Interface Committee
• SEOAT — Systems Engineering Operational Analysis Team
• OFS — Ordered Field Sequencing
• PFLINT — Probability of Fault Localisation, internal
• GRP — Geographical Reference Points
• APIRG — African Planning and Implementation Regional Planning Group
• MSGTXT — Message Text
• CA — Conflict Alert
• IPRT — Internal Processing Response Time
• VDR — Very High Frequency Digital Radio
• E/D — End-Of-Descent
• OIS — OGE Input Simulator
• MSR — Monthly Status Report
• VFXR(R) — Flap Retraction Speed
• AOP — NAS Operations
• TC — Transit Corridor
• ODT — Operational Requirements and Data Processing Team
• FREER — Free Route Experimental Encounter Resolution
• RMA — RELIABILITY MAINTAINABILITY AVAILABILITY
• DMC — Detachment of Military Coordinators
• MBST — Microburst
• MWP — Meteorological Weather Processor
• TMF — Thrust Management Function
• HAD — Human Aspects Development
• CDPS — Central Data Processing System
• SATSA — Swedish ATS Academy
• LTT — Landine TeleTypewriter
• CENA — Centred Études de la Navigation Aérienne

• LATCO — Licensing of Air Traffic Control Officers
• TAX — Taxiway Lights
• QAR — Quality Assurance Resources
• LHCP — Left Hand Circular Polarisation
• MMO — Mach Max Operating
• HTA — Hermes Training Aircraft
• OCU — Onboard Maintenance Terminal Controller Unit
• PATS — Precision Approach Tracking System
• COSAAC — Common Simulator to Assess ATMF Concepts
• LUG — Leerdam Users Group
• VSI — Stalling Speed in a Specified Flight Configuration
• CRP — Co-ordinated Research Programme
• HCAP — High Capacity Carriers
• COM — Cockpit Operating Manual
• IFLIPS — Integrated Flight Prediction System
• RIT — RADNET Implementation and Integration Team
• HCD — Hard Copy Device
• GLSU — GPS Landing System Unit
• VREF — Approach Reference speed
• ADSU — ADS Unit
• TCPU — Touch Panel Central Processing Unit
• SFD — Start Frame Delimiter
• HUPER — IFALPA Human Performance Committee
• FTPC — Flight Technical Professional Committee
• HMS — Hydraulic Module Speed
• SAPPHIRE — Satellite and Aircraft Database Programme
• TC-APD — Tactical Controller Activity Predictor Display
• ZULU — Equivalent to Greenwich Mean Time
• CEU-W — Central executive unit with Responsibility for Western Europe
• EGNOS-EM — European Global Navigation Overlay Service
• HSI — Horizontal Situation Indicators
• CDA — Continuous Descent Arrival
• LFU — Late Filer and Udater
• JACC — Joint Area Control Centre
• LTV — Load Threshold Values
• FDG — Flight Data Group
• VAP — Visual Aids Panel
• PIRG — Planning and Implementation Regional Groups
• NTAP — Notices To Airmen Publication
• OASIS — Operational and Supportability Implementation System
• DAC — Dynamic Air Traffic Control Test
• SETP — Society of Experimental Test Pilots
• SMAW — Safe Minimum Altitude Warning
• VPAE — Vertical Profile Angle Error
• TVOR — Terminal Vor
• DMA — Divergence Monitoring and Alert
• ESA — Eastern Service Area
• GMC — Ground Movement Control
• IFPU — IFPS Unit
• QNH — Quantity

• XCOP — Exit Co-ordination Point
• CEI — Cabin Equipment Interfaces
• CPC — Control and Processing Centre
• FISDL — Flight Information Services Data Link
• DMAS — Director Maastricht Control Centre
• UNCOE — United Nations Committee of Experts
• SCAT-1 — Special Category 1
• OUR — CFMU Operational User Requirements
• IFEA — Indian Flight Engineers Association
• GFM — Graphical Information Category Fixec Maps
• SSR — Solid State Relay
• DAC — Direction Aviation Civile
• OIDS — Operational Information Display System
• SISG — Safety Indicators Study Group
• TRANS — Transition
• RCC — Rescue Co-ordination Centre
• PENS — Pan-European Fixed Network Service
• PROV — Provisional
• CPL — Customer Priority Listing
• RT&BTL — Radar Tracking and Beacon Tracking Level
• ERA — European Regions Airlines Association
• DISU — Drug Investigation Support Unit
• WXMS — Weather Mapping System
• FIA — Icelandic Air Line Pilots Association
• MOCC — Mid-States Operations Control Center
• UUP — Updated Use Plan
• NCF — National Control Facility
• FACTOR — Development of Functional Concepts from the EATMS Operational Requirements
• VC — Vereinigung Cockpit
• PSD — Process Support Document
• I/R — Interrogator/Responsor
• TMRR — Temporary Minimum Disk Route
• MECU — Millons of ECU
• LDGNSS — Local Differential Global Navigation Satellite System
• CTMA — Center Traffic Management Advisor
• SNICF — Subnetwork Independent Convergence Function
• ISR-ALPA — Israel Air Line Pilots Association
• CASA — Computer Assisted Slot Allocation
• FDO — Flight Data Operations Division
• DECR — Decrement
• DW — Dual wheels
• STAP — Statistics Panel
• TATCA — Terminal ATC Automation
• MOR — Military Operational Requirements
• TCAA — Transatlantic Common Aviation Area
• PRFG — Aerodrome Partially covered by Fog
• CRI — Class Rating Instructor
• NSSR — New Secondary Surveillance Radar Code
• MTTRSRU — Mean Time to repair SRU
• RLA — Relay to

• HWG — Harmonisation Working Group
• SARP — Standards And Recommended Practices
• CMAP — Center Mapping Automation Program
• CP — conflict probe
• AS — Airspace Systems
• NHCFAE — National Hispanic Coalition of Federal Aviation Employees
• RMCF — Remote Monitor Control Facility
• GRACYAS — Caribbean/ South American African Regional Planning Group
• SNACP — Subnetwork Access Protocol
• NARP — National Aviation Research Plan
• EROC — Study Group on En-Route Obstacle Clearance Criteria
• UAC — Upper Area Control Centre
• IFHO — International Federation of Helicopter Operators
• ASH — FAA Office of Security & Hazardous Materials
• NPO — Scientific Production Organisation
• HVY — Heavylift Cargo Airlines
• MSUP — Military SUPervisor
• FICO — Flight Inspection Central Office
• SPIFR — Single Pilot Ifr
• LFL — Last Flight Level
• TUM — Time Update Message
• EGNOSS — European Geostationary Navigation System Overlay
• SMR — Surface Movement Radar Study Group
• HDME — NDB with Distance Measuring Equipment
• DPL — Displayed Flight Plan
• DMAN — Departure Manager
• ARCP — Aerodrome Reference Code Panel
• LDGPS — Local DGPS
• FUS — Functional Units or Systems
• QUESTIONAIR — Computer-based ATM questions bank
• NAWPF — National Aviation Weather Processing Facility
• METI — Meteorological Information
• QRH — The barometric pressure as reported by a particular station
• FLOE — Informal Flow Control Europe East
• XCOR — Cancel Correlation
• C.O. — Certificate of Origin
• VRRS — Voice Recording and Display System
• DED — Director EATCHIP Development
• NDB — Nondirectional Radio Beacon
• CLW — Communications List Window
• LCR — Lowest Current Rate
• CAPE — Computer Assisted Planning Experiment
• ITEB — Information Technology Executive Board
• VOR — VHF OmniRange Navigatgion System
• SIAP — Standard Instrument Flight Procedure
• EAWDG — Architecture Workshop Drafting Group
• PPOS — Present Position
• LFS — Low-Fidelity-Simulation
• VWF — Video For Windows
• ASW — Air Situation Window

• EPC — Enhanced Planning and Coordination function
• EVCS — Emergency Voice Communications System
• TDA — Track Detection Analysis
• INR — Image Navigation and Registration
• TTA — Tactical Training Area
• NFDD — National Flight Data Digest
• EVP — EATM Validation Project
• DFL — Dynamic Flight Leg
• CDS — Controller Display Support
• GSP — Good Safe Port
• SAPS — Staffing and Personnel System
• ODRA — Office of Dispute Resolution for Acquisition
• APG — Asosiasi Pilot Garuda
• TMCU — Tower Main CWP Unit
• CDS — Central Dispatch System
• PIAC — Peak Instantaneous Aircraft Count
• GOTV — GNSS Operational Test and Validaton
• FFRDC — Federal Funded Research and Development Center
• IAP — Instrument Approach Plate
• SASO — System Approach for Safety Oversight
• TAI — Thermal Anti-lce
• ERNP — European Radio Navigation Plan
• TRANSSAC — Transport Safety Standards Advisory Committee
• NWSR — NWS Weather Excluding NXRD
• VF — Design Flap Speed
• UACC — Upper Airspace Control Centre
• FAN — False Alarm Normaliser
• VSM — Vertical Separation Minimum
• MDFM — Material Delivery Forecast Module
• NFIS — NAS Facilities Information System
• RSAT — Runway Safety Action Team
• EPRT — External Processing Response Time
• VTN — Voice Telecommunications Network
• OA — Object Oriented Analysis
• KAR — Karlsruhe
• FRMS — Facility Roster Management System
• IAAC — International Agricultural Aviation Centre
• MFO — Medical Field Office
• LAC — Logical Access Control
• OPAC — Operations of Aircraft
• FEODP — Flight Edit and On-Demand Printing
• RAAS — Runway Aural Awareness System
• RSCD — Runway Surface Condition
• IFFAS — International Fund for Aviation Safety
• XCD — Exceptional Conditions
• TMA-TC — TMA Tactical Controller
• SICTA — Italian Consortium for the Applied ATM Research
• TCDP — Technical Control Data Processor
• AOP — Aeronautical OSI Profile
• NACG — National Aeronautical Charting Group

• GOEST — GOES Terminal Equipment
• LAHSO — Land and Hold Short Operations
• OUR — Operational Users Requirements
• MSGSUM — Message Summary
• ERCS — EXM Resistant Communications System
• SEIFR — Single-Engine Instrument Flight Rules
• ODIN — Briefing System
• SAMTF — Safety Assessment Methodology Task Force
• RTG — Radio Telegraphy
• RDSS — Radar Determination Satellite System
• SET — Singe Engine Turbo-Prop
• IFALPA — International Federation of Air Line Pilots Associations
• NLM — Network Loadable Module
• CMTP — Common Medium Term Plan
• RISE — Retrieval and Interchange of Standards in Europe
• CMB — climbing
• RSI — Radiation Status Indicator
• OSD — Operational Suitability Demonstration
• NSAP — National Service Assurance Plan
• EAP — EATCHIP Alignment Process
• PAD — Packet Assembler/Disassembler
• FDFM — Flight Data and Flow Management Group
• RTCA — Requirements and Technical Concepts for Aeronautics
• FSPD — Freeze Speed Parameter
• PPO — Prior Permission Only
• HFTE — Human Factors Testing and Evaluating
• PGMM — Program Management Methodology
• BA — Budget Analyst
• IACH — Individual ATC Flight Plan Changes
• LCM — Late Change Message
• NSWC — Naval Surface Warfare Centre
• TWS — Terrain Awareness and Warning System
• RSL — Runway Status Light
• VAW — Vertical Assistance Window
• CDR — Conditional Route
• RBPM — Remote Beacon Performance Monitor
• XCM — Crossing Request Cancelation Message
• RITA — Replay Interface for TCAS Alerts
• PID — Pilot Information Downlink
• TDB — Track Data Block
• DRA — Defense Research Agency(UK)
• TCOP — Transfer Coordination Point
• CR — Course to a VOR Radial
• N2 — Second stage turbine speed
• AFD — Associated Flight Details
• EAD — Emergency Airworthiness Directive
• SET — Spacing Efficiency Tool
• VAC — Visual Approach Chart
• NCCA — No Clearance to Civil Aircraft
• IVR — Immersive Virtual Reality

• XIN — Military Crossing Intention Notification Message
• DRC — Dynamic Route Change
• TTC — Telemetry and Telecommand Centre
• OALT — Operational Acceptable Level of Traffic
• LF — Late Filer
• II — Interrogator Identity
• RCHG — Repetitive Flight Plan Modification Message
• SGCAS — Study Group on Certification of Automatic Systems
• JCCA — Joint Committee for Civil Aviation
• S/S — Sector Suite
• ARM — FAA Office of Rulemaking
• MSDS — Microsoft Data Engine
• TMC — Traffic Management Coordinator
• ARM — Airspace Risk Model
• AOPG — Aerodrome Operations Group
• LW — landing weight
• CCQ — Cross Cockpit Qualification
• CAPAN — Capacity Analyser
• AVLC — Aviation VHR Link Control
• PETAL — Preliminary Eurocontrol Test of Air/Ground Data Link
• V2 — Takeoff Climb Velocity
• EIS — Environmental Information Sampling
• CARD — Conflict and Risk Display
• RPG — Regional Planning Group
• ECA — Executive Controller Assistant
• TAP — Terminal Area Productivity
• RNDSG — Route Network and Development Sub-Group
• CUR — Current Sector
• RSSP — Radar Systems Specialist Panel
• DNTKFX — DownTrack Fix
• EWAN — EGNOS Wide Area Network
• RDC — Routing Domain Confederation
• TFG — Traffic Forecasting Group
• RMSC — Remote Monitoring Subsystem Concentrator
• SSS — System Specification
• WTWS — Windshear and Turbulence Warning System
• P2R2 — Preferred Route Reduction Program
• TSO — Technical Standards Order
• SCP — Spacecraft Control Processors
• EATN — Experimental Aeronautical Telecommunication Network
• GASAG — Global Aviation Security Action Group
• HCA — Human-Centred Automation
• SOAR — System of Airports Reporting
• FC — Course from a Fix to a Distance
• SSRBRIGH — Highlight set code to target
• OIP — Organization Iberoamericana de Pilotos
• FLOW — Informal Flow Control Europe West
• NFDC — National Flight Data Center
• EUR-RAN — European Regional Air Navigation
• DG — double-glass

• CAS — Cost Accounting System
• NCMS — Network Channel Management Station
• IBR — Intermediate Bit Rate
• LPC — Logistics Program Coordinator
• VAA — Value Added Applications
• CMG — Crisis Management Group
• MACE — Multi-criteria analysis for Concept Evaluation
• OPR — Air Traffic Management Operational Requirements
• EUR/TFG — European Traffic Forecasting Group
• PGS — Personnel General Services Team
• NAVAIDS — Navigational Aids
• DNS — Digital Network Signalling
• RDPP — Radar Data Post Processor
• WPT — Way Point Technologies
• ROSHM — Regional Occupational Safety and Health Manager
• FO — First Officer
• EES — European Eastern States
• RDQC — Radar Data Quality Control
• FSG — Flight Study Group
• FPLA — Flight Plan Application Section
• NCAB — National Civil Aviation Board
• NOCC — National Operation Control Center
• GEMS — Generic Error-Modelling System
• PATRAM — Packaging and Transport of Radioactive Materials
• ETA — EstimatedTime of Arrival
• NDP — National Airspace System Defense Programs
• EWPA — EATCHIP Work Programme Adaptation
• LAM — Activation Message
• CCCC — Staff Communications
• XASP — Extended AIRCOM Service Processor
• SICASP — Secondary Surveillance Radar Improvements
• MCI — mode C intruder
• NSTB — National Satellite Test Bed
• VORTAC — VHF Omni Range Radio/Tactical Air Navagation
• PRICE — Proficiency Requirements in Common English Study Group
• NLR — National Research Laboratory
• CASST — Commercial Aviation Safety Strategic Team
• MSN — Message Switching Network
• JTST — Jet Stream
• MACEN — Mando Centra
• AVENUE — ATM Validation Environment for Use towards
• DOP — Daily Operations Plan
• EAM — Eurocontrol Airspace Model
• PFA — Pilot Friendly Airport
• WAFS — World Area Forecast System Study Group
• PJSA — Project Scope Agreement
• SESMA — Special Event Trend Analysis
• PRC — Performance Review Commission
• LTF — Licensing Task Force
• EADTF — European AIS Database Task Force

• RSM — Radar Service Message
• TARA — Terminal Area R-NAV Applications Sub-Group
• RO-ALPU — Romanian Air Line Pilot's Union
• TDSP — Training Documentations and Special Projects
• CAMUS — Czech Automated Multi radar System
• RDTE — Research Development Trials and Evaluation
• TRA — Thrust Reduction Altitude
• BERMS — Beacon Environmental Remote Monitoring Subsystem
• EBUS — Enhanced Backup Surveillance
• NF — Norwegian Air Line Pilots Association
• T/D — Top of-Descent
• PROP — Propellor
• SSALF — Ssals with Sequenced Flashers
• VISSR — Visible-Infrared Spin Scan Radiometer
• ACG — ATN/CNS Consultancy Group
• NCIU — NEXRAD Communications Interface Unit
• ISDU — Inertial System Display Unit
• SCAT — Staffing and Cost Analysis Tool
• CARS — Civilian Air Routes System
• MMOC — Martin-Marietta Overseas Corporation
• EIIC — Electronics Installation and Implementation Centre
• WEAA — Western European Airports Association
• TWR — Tower Control Unit
• MCC — Multi Crew Coordination
• VU — Utility Speed
• DRF — Departure Flow Regulation
• ALT — Airborne Link Terminal
• RAPS — Recovery Access Presentation System
• CATSA — Croatian air Traffic Services Authority
• IFPO — IFPS Workstation Operaror
• MURATREC — Multi-Radar Track Reconstruction
• MCTR — Military CTR
• CYPRO — Cyprus Project for ATC Improvements
• MIDAS — Multi-Discipline Data Analysis System
• OPD — Operational Procedures Document
• FST — Fuel Storage Tanks
• NSD — Navigational Status Display
• TSP — HRS Training Sub-Programme
• RAN — Regional Air Navigation
• SF — Special Freighter
• PPD — Plans and Policy Division
• EFDFMG — EUROCONTROL Flow Data and Flow Management Group
• SEL — Selected Equipment List
• LOSA — Line Orientated Safety Audit
• CANAC — Computer Assisted National ATC Centre
• FITAMS — Flight Trials of ATN and Mode S activity
• CALLSGN — Callsign
• WAA — Wide Area Augmentation
• SIC — Service Initiation Charge
• EACAC — Evolutionary AIR Ground Cooperative ATM Concept

• HPRES — Pressure Altitude
• SWISSALPA — Swiss Air Line Pilots Association
• PGMP — Pilot Group on ATCO Manpower Planning
• SSDG — Surveillance Strategy Drafting Group
• TIS-B — Traffic Information System - Broadcast
• OSDS — Oceanic System Development and Support
• BULKHEAD — A vertical partition separating compartments
• IACSP — International Aeronautical Communications Service Providers
• JATO — Jet Assisted Takeoff
• PAM — Peripheral Adapter Module
• ATCSQ — ATC Safety Questionnaire
• DEP-VKL — Departure Controller
• LUGS — Link up Glons-Semmerzake
• FAATC — FAA Test Centre
• PTUK — Pilots Trade Union Kazakhstan
• CAP — Study Group on Continuing Airworthiness Problems
• ITMD — Individual Training - Material-dependent
• MNWG — Multinational Working Group
• QSIG — Signalling to a Q Reference Network
• RRH — Remote Reading Hygrothermometer
• NSM — Network System Manager
• PED — Primary Engine Display
• AISPOP — AIS Planning and Operations Subgroup
• CWSU — Central Weather Service Unit
• SFLA — Assign SFL
• NATS — National Air Traffic Services (UK)
• IFDS — Interfacility Data System
• ASM — Air Space Management
• EASG — EASIE ATM Support Group
• AVS — FAA Office of Aviation Safety
• SCC — Satellite Control Centre
• RTD — Research and Technical Development
• NOTAM — Notice for Airman
• NAVSEP — Panel Experts on Navigation and Separation
• AL — Approach Lights
• PAK — Pilot Acknowledgement
• PERDIEM — By the Day
• RWSL — Runway Status Lights
• FSIAG — Flight Service Information Area Group
• PCM — Post Crash Management
• TSIKADA — Russian four-satellite civil navigation system.
• DAF — Demand Adjustment Factors
• FCOM — FSS Radio Voice Communications
• RIS — Relational Interface System
• ME — Multi-engine
• OTPS — Oceanic Traffic Planning System
• RVM — Radar Video Map
• B — Below
• NOMAS — NOTAM Management System
• TMSSG — Top Management Structure Sub-Group

• ESF — Essential Support Facilities
• NDC — National Data Center
• RBSS — Radar Bomb Scoring Squadron
• HFS — Human Factors Studies
• EC — Executive Controller
• OHTF — Operational Harmonisation Task Force
• FBS — Fall Back Switch
• CPC — Circulo de Pilotos de Chile
• IREN — Incident Reporting European Network
• TATCA — Terminal Air Traffic Control Automaiton
• SEP — Safety Equipment and Procedures
• ILM — Inventory Logistics and Maintenance Suite
• VREF — Reference Velocity
• MMC — Maintenance Monitoring Console
• CAO — Computer Assisted Operations
• PDS — Programme Development System
• IWGE — International Working Group on Exercises
• RTF — Radio Telephony
• ODL — Oceanic Data Link
• SOR — State Of Readiness
• FDIOC — Flight Data Input/Output Center
• PATA — Polish Air Traffic Agency
• TCL — Terminal Control Language
• SCAN — Swiss Data Network
• RTDS — Radar Terminal Display System
• NEAP — North European Application Project
• MCMG — Military Committee Meteorological Group
• IFDS — Interactive Flight Data System
• VMO — Velocity Max Operating
• SBS — Surveillance Broadcast Services
• NAAN — North Atlantic ADS-B Network
• MEDLL — Multipath Delay Lock Loop
• CSR — Communications Service Request
• RLP — Remote Line Printer
• SMX — Sub-Multiplexer
• FS — Foot Switch
• SCDT — Selected Controlled Departure Times
• HHDW — Handy Heavy d.w.
• NASE — NAS Adaptation Services Environment
• NEMC — Network Enterprise Maintenance Center
• SWET — Swedish NEAN Project Team
• ODU — Output Distribution Unit
• RAA — Regional Airline Association
• RIG — Regional Implementation Group
• GR — Geographical Rotation
• CC — Construction coordinator
• FEATS — Future European Air System Concept Group
• PEC — Pan European Conference
• CVO — Code Validity Overlap
• OPA — Opaque, white type if ice formation

• SMC — Surface Movement Control
• OPLT — Operational Acceptable Level of Traffic
• SVFR — Special VFR
• RNDSG — Route Network Development Sub-Group
• VLE — Landing Gear Extended Placard Airspeed
• OPSNET — Operations Network
• LIW — Label Input Window
• NAVSEP — Navigation and Separation Specialist Panel
• UPA — Uganda Pilots Association
• IST — InterService Team
• ODAPS — Operational OGE Data Acquisition and Patch Subsystem
• IAS — Investment Analysis Staff
• TFTS — Terrestrial Flight Telephone System
• SME — Subject Major Expert
• NCAIC — National Civil Aviation Information Centre
• OPIF — Operator Interface
• TDI — Track Deviation Instrument
• SICASP — SSR Improvements and Collision Avoidance Systems Panel
• MCS — Maintenance and Control System
• CMSND — Commisissioned
• FMA — Final Monitor Aid
• ITA — Institute of Air Transport
• EIAF — Expanded Inward Access Features
• PFE — Path Following Error
• EGIP — European Gateway for INO Provision
• NSWRH — Nws Regional Headquarters
• SRC — Safety Regulation Commission
• ATISR — ATIS Recorder
• SCT — Southern California Area TRACON
• FNMS — FTS2000 Network Management System
• TDCP — Test Display and Control Panel
• LCC — Lifetime Cycle Costing
• WIAS — Weather Information Automated System
• FDIOR — Flight Data Input/Output Remote
• RCRT — Refresh Cycle Response Time
• ITP — in trail procedure
• VP — Vertical Profile
• GM — guidance material
• LVP — Low Visibility Procedures
• CTC — Centralized Train Central
• CER — Cancel Emergency Mode Request
• TIZ — Traffic Information Zone
• RPMES — Regional Program Manager for Environment and Safety
• WPS — Working Positions
• FPM — Flight Position Monitor
• SCATCC — Scottish Air Traffic Control Centre
• STU — Selected Trajectory Update
• SERC — Software Engineering Resource Center
• MMIL — Martin-Marietta International Link
• DETF — Data Exchange Trest Facility

• MEARTS — Micro-EARTS
• MNS — Mobile Network Service
• XMET — Cancel METAR
• DANT — Danish NEAN Project Team
• CMV — Coverage Measurement Volume
• RIP — Runway Incursion Program
• CCS — Cabin Communications System
• MAPA — Malaysian Airline Pilots Association
• PES — Proposed Eurocontrol Standard Document
• EPG — EASIE Policy Group
• HTD — History Trial Dots
• MSTU — Multiple Stagger Trigger Unit
• RTAD — Remote Tower Alphanumeric Display
• AOS — Airport Operations Strategy Drafting Group
• PEX — PHIGS Extended X-Windows System
• LPA — Lebanese Pilots Association
• OLR — Off Load Routes
• ATSCCP — ATS Contingency Command Post
• RMLT — RML Terminal
• MADREC — Maastricht Data Recording
• PBCT — Proposed Boundary Crossing Time
• FPA — Finnish Pilots Association
• RTCA — Radio Technical Committee on Aeronautics
• RLIM — Radar Data Line Interface Module
• FIT — Flight Plan Input Terminal
• CRA — Conflict Resolution Advisory
• CCC — Communications Command Center
• HIFA — Human Integration in Future ATM Systems
• IPS'S — Intellectual Proprietary Rights
• SACAA — Southern African Civil Aviation Authority
• METAG — MET Advisory Group
• RSPD — Reported Speed
• NGATM — New Generation Air Traffic Manager
• EWS — Experimental Workstation Simulator
• CPL — Commercial Pilot Licence
• SOGITS — Senior Official Group in IT Standardisation
• PROMET — Provision of Meteorological Information
• JAMC — Joint Airspace Management Cell
• IMP — Implementation Services
• TWYL — Taxiway Lights
• ARC — Area Chart
• SESY — Service Systems Section
• PDB — Performance Data Base
• PZ — Portotroz
• ITD — In-Trail Descent
• NONSTD — Nonstandard
• LFPP — Limited Flight Plan Processing
• NAR — National Airspace Review 66
• RECDPS — Recording Data Processing System
• MPAR — Multifunction Phased Array Radar

• LATC — Local Air Traffic Control
• CP — Circular Polarisation
• HE — Altitude Error
• NSVN — NATO Secure Voice Network
• ELWRT — Electrowriter
• RET — Airborne & Ground Retrofit
• RPG — Radar Processing Group
• TLA — Title Line Area
• RTPTS — RouTe PoinTS
• MST — Multiple Sensor Tracking
• PEL/TRG — Personnel Licensing and Training
• IAM — Informal Application Manual
• SPNT — Syndicat Personnel Navigant Technique de Tunisia
• RS — Reference Station
• SUDP — Surveillance data Processing
• RTSIM — Real-Time Simulation
• CNS — Communications Navigations and Surveillance
• RTB — Radar Tool Box
• LCF — Local Control Facility
• SSM — System Support Modification
• MANIFEST — Inventory of cargo on board
• EC — Engineering Center
• RRWDS — Remote Radar Weather Display
• REL — Runway Entrance Light
• SNME — Subnetwork Management Entity
• PASYI — Pan-Cyprian Airline Pilots Union
• OC4J — Oracle Containers for Java Enterprise Edition
• TSRV — Transport Systems Research Facility
• PEM — Phone Emergency Module
• TCB — Training Co-ordination Board
• TDCE — Telephone Distribution and Control Equipment
• CRC — Coordinating Research Council (USA)
• MTP — Medium-Term Plan
• STT — Studies, Tests and Trials
• PCB — Personnel Compensation and Benefits
• NTRY — Entry
• SSE — Servicing Security Element
• VAR — Variation Magnectic
• ERATO — En Route Air Traffic Organiser
• VLDM — Very Low Dispersible Material
• VAW — Volcanic Ash Warnings
• RTD — Research and Development of Technologies
• SAS — Safety Assurance System
• IG — Meridiana
• LEFD — Local Essential Flight Details
• CMT — Critical Milestone Test
• GP — Grain Capacity
• POLALPA — Stowarzyszenie Polskich Pilotow Komunikacyjnych
• TKX — Crosstell Tracker
• SCC — System Command Center

• FMDB — Fault Message Database
• CRITTER — Civil Rotorcraft IFR Terminal-Area Technology Enhancement Research
• SRM — Slot Revision Message
• RSUS — RPL Suspension Message
• CDS — Cabin Distribution System
• RICE — RTF Interface Control Equipment
• SSGS — Surveillance Sub-Group on Standards
• NAVMN — Navigation Monitor and Control
• OAP — Oceanic Automation Program
• VPIP — Vertical Intercept Point
• HUNALPA — Hungarian Air Line Pilots Association
• IND — IFALPA Industrial Committee
• SMHI — Swedish government owned MET Institute
• RC — Radar Controller
• EXY — Easyjet
• OFA — Object Free Area
• TNAV — Time Navigation
• LROPS — Long Range Operations
• HBT — Human Behavioural Technology
• DGVII — Directorate General VII
• ASP — AIRCOM Service Processor
• CWIR — CFMU Generated What-If Re-routing
• CZW — Conflict Zoom Window
• NAT-TFG — North Atlantic Air Traffic Forecasting Group
• EEE — Etudes, Essais and Experimentation
• RASCAL — Rotorcraft Air Crew Systems Concepts Airborne Laboratory
• TOPM — Take-Off Performance Monitors
• MAM — Maintenance Assumed Monitoring
• QRPS — Route Points Store
• SGTOAA — Study Group on Take-off Accountability Areas
• RSMTF — Radar Separation Minimum Task Force
• ARN — ATS Routes and Associated Navigation Means
• EWBS — EATCHIP Work Breakdown Structure
• NOG — National Operations Group
• ETO — Engineering Technical Officer
• NATSPG — North Atlantic Systems Planning Group
• NCIPD — National CIP Documents
• DCC — Direct Channel Complex
• RAPNET — Regional Aeronautical Packet
• NXRD — Advanced Weather Radar System
• RIC — Radar Integration Control
• SCVTS — Switched Compressed Video Telecommunications Service
• U — Upward
• RLBCS — Rolling Ball CallSign
• SSGT — Surveillance Sub-Group on Tools
• RPOC — Risk Point-of-Contact
• PTC — Presumed-to-Conform
• EGNOS — European Global Navigation Overlay Service
• SATCO — Signal Automatic Control
• HI-EFAS — High Altitude EFAS

• RTI — D-RVR Delivery Messge
• SUP/MIL — Supervisor military
• RJT — Rerouteing Rejection Message
• EAC — East Assistant Controller
• ORS — Obstruction Repository System
• RDM — Running Display Message
• SEOTV — Sindicato Espanol de Oficiales Tecnicos de Vuelo
• RNAV — Workstations, Intelligent tools, and Networks
• OSI — Open Sytem Interconnection
• GSIF — Ground Station Identification Frames
• OSRWG — Oceanic Separation Reduction Working Group
• NBCFAE — National Black Coalition of Federal Aviation Employees
• PFD — Planned Flight Data
• FR — First Refusal
• TCA — Terminal Conflict Alert
• POH — Pilot Operating Handbook
• GLS — Global Landing System
• SSRWG — Systems Safety Risk Working Group
• RCLR — Recleared
• PAMRI — Peripheral Adapter Module Replacement Item
• GOESF — GOES Feed Point
• FMI — Frequency Management Issues
• FCT — Federal Contract Tower
• RMLR — RML Repeater
• ATOVN — AUOTVON
• FMP — Field Maintenance Party
• PDTWG — Plot Data Transmission Working Group
• RMCD — Remote Master Control Desk
• SES — Supplementary Equipment and Services
• PEA — Parameter and Environment Assembler
• MDL — Multipurpose Data Link
• PIM — Programme Implementation Management
• SCAT-1 — Special Category One
• SUP/APP — Supervisor Approach
• LAF — Local Adaptation Functions
• OTT — D_OTIS Termination Message
• SBIR — Small Business Innovative Research
• MILSPEC — Military Specifications
• SRS — Shuttle Reservation System
• PSL — Projected Service Life
• FDS — Flight Data Section
• IFEO — International Flight Engineers Organisation
• TSD — Time Sequence Diagram
• NSRCATN — National Strategy to Reduce Congestion on America's Transportation Network
• SMT — Schedule Management Toolset
• TKOF — Take-off
• TNA — Turn Altitude
• ITR — International Transit Route
• TITLE — Message Name
• PFM — Pre-Flight Messages

• RCF — Radio Communications Failure
• OAS — Oceanic Automation System
• TRNSG — Testing of Radio Navaids Study Group
• NSC — National Service Center
• PROSAT — Program Satellite
• AR — Administrative Recommendation
• SSD — Synthetic Situation Display
• HIRE — T/C Remuneration
• IRMA — Intermediate Redesigned MCC Architecture
• PIM — Program Implementation Manager
• NASDC — National Aviation Safety Data
• OFIR — Oceanic FIR
• GLS — Gearless
• TARAD — Tracking Asynchronous Radar Data
• CRM — Collision Risk Methodology
• ITM — Intermediate Approach controller
• HELLANET — Hellenic aeronautical Network
• ROSA — REPORT OF SERVICE ACTIVITY
• PRODAT — PROSAT Data Link Experiment
• MTPA — Mobile Transponder Performance Analyser
• ONER — Oceanic Navigational Error Report
• LFME — Local Flow Management Enhancements
• SFD — Service Flow Diagram
• RBI — Relative Bearing Selector
• FCT — Friction Coefficient
• CSTWRK — Cost Work
• VSSG — Vertical Separation Study Group
• RGCSP — Review of General Concept of Separation Panel
• OE — Obstacle Evaluation
• NDA — Next Data Authority
• CDN — Coordination
• PMC — Project Management Cell
• MSS — Message Storage System
• SW — Shrapnel (Shell)
• PED — Personal Electronic Devices
• OPC — The control indicated is operational control
• ROA — Record of Assistance
• MOCBITE — Maastricht Operational Computer Based
• SGAMI — Select Group for Assessing Manpower Issues
• MBA — Microburst Alert
• PROFI — Multinational Project Financing
• MRM — Maintenance Returned Monitoring
• EPI — Element Performance Inspections
• AL — Aircraft Label
• TCT — Technical Control Terminal
• MIR — Master Inspection Record
• PRIF — PROC Interface Tool
• SAPA — Swazi Air Line Pilots Association
• ISO — Information System Owner
• CMC — Constant Mach Blimb

• SNBNK — Snowbank Caused by Plowing
• HKAOA — Hong Kong Aircrew Officers Association
• LDM — Low dispersible material
• NSD — Navigation System Database
• RCAS — Radio Coverage Analysis System
• SHORAN — Short Range Navigation
• RAC — RUHR Assistant Controller
• SPA — Suriname Pilots Association
• SSD — System Support Directive
• PED — Passenger Electronic Devices
• PASS — Professional Airway System Specialists
• SMF — Systems Management Facility
• RTF — Radiotelephony
• SLOVALPA — Slovak Air Line Pilots Association
• RTT — D-RVR Termination Message
• PBRF — Pilot Briefing
• NSP — National Simulator Program
• RESYNCING — Resynchronizing
• MCF — Manning Calculation Formula
• SNACF — Subnetwork Access Function
• OFFPDR — Off Predetermined Route
• PHIBUF — Performance Buffet Limit
• SELREL — Selective Release
• RLST — Revised List
• MAD — Model of Activity for Design
• NOC — Notice Of Completion
• SEL — Single Event Level
• SSO — STAR Support Office
• MF — Middle Frequency
• RLNA — Requested Level Not Available
• SEL — Selcal code
• SALPA — Sudan Air Line Pilots Association
• SEC — IFALPA Security Committee
• SPF — Svensk Pilot Forening
• SOL — Sector Outbound List
• PCC — Planning Co-ordination Controller
• FOW — free on wharf
• PMC — Project Materials Cumulative
• O21 — Ocean21
• MSD — Multi-Site Damage
• RCLT — RCL Terminal
• RINAL — Portuguese Data Network
• PLC — Planning Controller
• LOC — Localizer Beam
• CPC — Constant Pitch Climb
• SIPAC — Sindicato Panameno de Aviadores Comerciales
• PTS — Procedures Tracking System
• IL — Israлl
• FPS — Flight Plan Server
• CYGLGN — Cyclogenesis

• OLDISP — OLDI Specialist Panel
• ATS — Automatic Throttle System
• GIC — Geostationary Integrity Channel
• NFD — National Flight Database
• CASA — Controller Automated Spacing Aid
• SOC — Start of Climb
• EL/KYB — EL Keyboard
• NAP — Needs Assessment Program
• OMG — Operational Monitoring Group
• IC — Implementation Center
• THAIPA — Thai Pilots Association
• STAR — StandardTerminal Arrival Route
• SFT — Simplified Fast Time Simulations
• MTMA — Major TMA
• PPR — Personal Property Report
• NATCON — North Atlantic Concept
• RRWSS — RWDS Sensor Site
• EXSPEC — Exercise Specification
• OFST — Lateral Offset Active Light
• TATCI — Tallinn ATC Improvement project
• RT — Remote Transmitter
• SEM — Semmerzake
• ISS — Information Systems Security
• PRR — Pilot Request, Route
• SPD — Speed Mode
• NDE — Node Processor
• SIPACIP — Sindicato de Pilotos Aviadores Civiles del Paraguay
• RESTR — Restriction
• SST — System Shakedown Testing
• MSF — Master Simulation Facility
• CPS — Central Print Service
• MLA — ManeuverLimited Altitude
• REG — Regulatory
• PAS — Project Assignment Sheet
• NFAX — National Facsimile Service
• CSC — Central Service Center
• CAPS — Computer Automated Profiling Systems
• HD — Air Holland
• RSA — Radar Service Area
• MIA — Minimum IFR Altitudes
• GMT — Greenwich Meantime
• SCA — Serbian Cockpit Association
• OETS — Obstacle Evaluation Tracking System
• EI — Air Lingus
• ITT — Invitation Property Rights
• RBS — Radio Backup System
• SUATMS — Single Unified ATM System
• OPS/AIR — Operations/Airworthiness
• SSA — System Safety Approach
• PIC — Principal Interexchange Carrier

• LAS — Lower Airspace Sector
• RJ — Roal Jordanian
• MIP — Multinational Information Production
• TTF — Total Flights
• TTP — TCAS II Transition Program
• NPL — Night Plan
• OST — Office of the Secretary of Transportation
• FLIREC — Flight Recorders
• SHANDAP — Shannon Data Processing
• NPA — Notice of Proposed Amendments
• RSURTF — RASS-S Upper Requirements TF
• SRP — Selected Reference Point
• FMC — Frontline Managers Courses
• NIPT — National Infrastructure Planning Team
• PA — Project Authorization
• TGS — Taxi Guidance System
• OLDINA — OLNO, Diekirch, Nattenheim
• FSA — First System Activation
• CO — Continetnal
• PRC — EEC business area - support to performance review
• STUD — Innovative studies
• NOG-FSG — NOG Features Subgroup
• GP — Glidepath
• SA — Situation Awareness
• MCL — Middle Compass Locater
• STS — Support to States
• VS — Vocational Stabilisation
• STEPCLB — StepClimb
• PEC — Pressure Error Correction
• EA — Europe Airsports
• TAT — Total AirTemperature
• FS — Flight Standards
• RSO — Route per State Overflown
• TB — Tellback
• SC — Steering Committee
• PDS — Proficiency Development Specialists
• RSC — Runway Service Conditions
• VD — Vertical Dispersal
• SP — Surveillance Processing
• US — USAir
• MOS — Military Operations Specialst
• OAT — Outside AirTemperature
• RI — Route Intercept
• TRL — Transition Level
• EPS — Exercise Preparation Suite
• LF — Later Filter
• POP — Point-0f-Presence
• RSS — Remote Speaking System
• SEC — Strategic Event Coordination

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