Авиационные аббревиатуры, начинающиеся на цифры:
| 1 PPS | - | One Pulse Per Second |
| 1 :1 | - | One-to-one relationship |
| 1 :M | - | One-to-Many relationship |
| 16PF | - | Sixteen Personality Factor Questionnaire |
| 2D | - | Two Dimensional |
| 3D | - | Three Dimensional |
| 3D | - | Palair Macedonian (airline) |
| 4D | - | Four Dimensional |
| 4D FMS | - | 4D Flight Management System |
| 4D-NAV | - | 4D Navigation |
| 4DTN | - | 4D Trajectory Negotiation |
| 4-MASt | - | 4-MAST group |
| 5LNC | - | Five Letter Name Code |
| 5-ST-RSG | - | 5-States Route Structure Group |
| 5-STRSSG | - | 5-States Route Structure Steering Group |
| 5-SRSWG | - | 5-States Route Structure Working Group |
| 8.33 CP | - | 8.33 Contact Person |
| 8.33 PMC | - | 8.33 Programme Management Cell |
| 8.33 State | - | A State initially implementing 8.33 kHz channel spacing |
Авиационные аббревиатуры, на букву A:
| A | - | Aeroplane |
| A | - | Amber |
| A | - | Prededing 4 digits Altimeter (Metar) |
| A | - | Ampere |
| A | - | At or Above (constrained altitude) |
| A | - | Autotuned NAVAID |
| A | - | Austria |
| A01 | - | Automated Observation Without Precipitation Discriminator |
| A02 | - | Automated Observation With Precipitation Discriminator |
| A SMGCS | - | Advanced Surface Movement Guidance and Control Systems |
| A/A | - | Air/Air (Air ti Air) |
| A/C, a/c | - | Aircraft |
| A/D | - | Analog-to-Digital |
| A/D Converter | - | Analogue-to Digital Converter |
| A/G | - | Air-Ground |
| A/I | - | Accident(s)/Incident(s) |
| A/l | - | Anti-ice |
| A/L | - | Auto Land |
| A/P | - | Autopilot |
| A/T | - | Autothrottle |
| AA | - | American |
| AA | - | Approved agency |
| AAA | - | Advanced ATC System Amsterdam |
| AAA | - | Asian Airliners Association |
| AAA | - | (or AAB, AAC...etc., in sequence) Amended meteorological message (message type designator) |
| AAATS | - | Australian Advanced Air Traffic Services |
| AAC | - | Alpha Attenuation Coefficient |
| AAC | - | Aeronautical Administration Communication (a class of communication which supports administrative communication) |
| AAC | - | Airline Administrative Communication |
| AACC | - | Airport Associations Co-ordinating Council |
| AACE | - | Airfield Approach Control Element |
| AACI | - | Airports Association Council International |
| AACO | - | Arab Air Carriers Organisation |
| AAD | - | Assigned Altitude Deviation |
| AAF | - | ATM Added Functions |
| AAFCE | - | Allied Air Forces Central Europe |
| AAFG | - | ATM Added Functionality Sub-Group |
| AAG | - | AIS Automation Group |
| AAGDI / AGADE | - | Automated Air/Ground Data Interchange |
| AAH | - | Autonomous Aircraft Hybrid |
| AAIB | - | Air Accident Investigation Branch (UK equivalent of NTSB) |
| AAIM | - | Aircraft Autonomous Integrity Monitoring |
| AAIS | - | Automated AIS |
| AAL | - | Above Aerodrome level |
| AALS | - | Advanced Approach and Landing System |
| AAM | - | Airbus Asset Management |
| AAM | - | Airline Administration Message |
| AAME | - | Association of Aviation Medical Examiners |
| AAP | - | Advanced Automation Program |
| AAPA | - | Association of Asia Pacific Airlines |
| AAR | - | Airport Acceptance Rate or Airport Arrival Rate |
| AAR | - | Air-to-Air Refuelling |
| AAS | - | Advanced Automation System (the end systems for all FAA air traffic control, located at the ARTCCs |
| AASA | - | Air Lines Association of Southern Africa |
| AASC | - | Airport Authorities Steering Committee |
| AASI | - | Aeronautical Applications Service Interface |
| AASR | - | Airways and Airport Surveillance Radar |
| AAT | - | Alpha Attenuation Test |
| AATF | - | Airworthiness Assurance Task Force |
| AATMS | - | Advanced Air Traffic Management System |
| AATT | - | Advanced Aviation Transportation Technology |
| AAUI | - | Aeronautical Applications User Interface |
| AAWF | - | Auxiliary Aviation Weather Facility |
| AB | - | Action Button (mouse) |
| ABAS | - | Aircraft-based Augmentation System |
| ABC | - | ATC Bypass Complex |
| ABET | - | Airspace Behavioural Engineering Technology |
| ABFG | - | ATM Basic Functions Sub-Group |
| ABI | - | Advance Boundary Information |
| ABM | - | Abeam |
| ABN | - | Aerodrome Airport Beacon |
| ABPSK | - | Aviation Binary Phase Shift Keying |
| ABT | - | About |
| ABV | - | Above |
| AC | - | Air Canada |
| AC | - | Alternating Current |
| AC | - | Altocumulus |
| AC | - | Assessment Centre |
| AC | - | Assistant Controller |
| AC | - | Advisory Circular |
| АСА | - | Air Traffic Centre Architecture |
| АСА | - | Airport Co-ordinators Association |
| АСА | - | Airspace Control Activity |
| АСА | - | AUP / UUP Composition application (software) |
| АСА | - | Austrian Cockpit Association |
| ACAC | - | Arab Civil Aviation Council |
| Acad | - | Academic establishments |
| ACAD | - | Auto Computer Aided Design (Operator-Input + Display System) |
| ACAG | - | Airspace Co-ordination Agencies |
| АСАМ | - | Airport Capacity Airside Modelling |
| ACAMS | - | Aircraft Condition Analysis and Management System |
| ACARS | - | Aircraft Communications, Addressing and Reporting System |
| ACARS | - | ARINC communications and address reporting system (digital communications system used primarily for aircraft-to-airline messages) |
| ACARS MU | - | ACARS Management Unit |
| ACAS | - | Airborne Collision Avoidance System |
| ACAS I | - | Aircraft Collision Avoidance System Version 1 |
| ACAS II | - | Aircraft Collision Avoidance System Version 2 |
| ACAS III | - | Aircraft Collision Avoidance System Version 3 |
| ACASA | - | ACAS Analysis |
| ACATF | - | ATC Centre Communications Architecture Task Force |
| ACB | - | Aeroclub |
| ACC | - | Area Control Centre |
| ACC Controller | - | Area Controller |
| ACC Loop | Anticipation-Action-Comparison Loop | |
| ACCA | - | Air Charters Carriers Association |
| ACCC | - | Australian Competition and Consumer Commission |
| ACCEL | - | Accelerate |
| ACCESS | - | Aircraft Control Console for Experiments and Simulations Studies |
| ACCID | - | Notification of an aircraft accident |
| ACC-PC | - | ACC Planning Controller |
| ACCS | - | Air Command and Control System |
| ACC-TC | - | ACC Tactical Controller |
| ACCUM | - | Accumulate |
| ACDAC | - | Asociacion Colombiana de Aviadores Civiles |
| ACDMD | - | Air Collaborative Decision Making Demonstrator |
| ACE | - | Allied Command Europe |
| ACE | - | Altimeter Control Equipment |
| ACE | - | ATC Communications Environment |
| ACF | - | Area Control Facility. See ACC or ARTC |
| ACFS | - | Advanced Concepts Flight Simulator (a generic "glass cockpit") |
| ACFT | - | Aircraft |
| ACG | - | Advanced ATS Concept Group |
| ACG | - | Advanced Concept Group |
| ACG | - | ATN/CNS Consultation Group |
| ACG | - | ATS System Concept Working Group |
| ACG | - | Austro Control GmbH |
| ACH | - | ATC Flight Plan Change Message |
| ACH | - | ATC Flight Plan Change |
| ACI | - | Airports Council International |
| ACI | - | Area of Common Interest |
| ACID | - | Aircraft Identification (ICAO) |
| ACIPLA | - | Asociacian Civil de Pilotos de Lineas Aereas (Uruquay) |
| ACK | - | Acknowledge(ment) message |
| ACL | - | Altimeter Check Location |
| ACL | - | ATC Clearances |
| ACM | - | Acceptance of (Radar) Co-ordination Message |
| ACM | - | Acceptable Means of Compliance |
| ACM | - | Airspace Control Measures |
| ACM | - | ATC Communication Management |
| ACMS | - | Aircraft Condition Monitoring System |
| ACN | - | Aircraft Classification Number |
| ACN | - | Airspace Co-ordination Notification |
| ACN | - | Austrian Communication Network |
| ACNZ | - | Airways Corporation of New Zealand |
| ACO | - | Airspace Co-ordination Order |
| ACOD | - | Area Conflict Detection |
| ACP | - | Accept Message |
| ACP | - | Acceptance Message |
| ACP | - | African, Caribbean and Pacific States |
| ACP | - | Aircraft Control Position (window) |
| ACP | - | Airspace Control Plan |
| ACP | - | Airspace Crossing Acceptance Message |
| ACP | - | Allied Communications Publication |
| ACP | - | Azimuth Change/Count Pulses |
| ACP | - | Area Control Procedural |
| ACPO | - | Aircraft Position Operator |
| ACPSC | - | Advisory Committee on Procurement and Sales Contracts (Eurocontrol/DF) |
| ACPT | - | Accept or Accepted |
| ACR | - | Air Carrier |
| ACR | - | Atlantic Co-ordinated Route |
| ACRPWG | - | Aircraft Crash Recovery Procedures Working Group |
| ACS | - | Advanced Communication System |
| ACS | - | Airspace Control System |
| ACS | - | Area Control Surveillance |
| ACSA | - | Allied Communications Security Agency |
| ACSE | - | Application Control Service Element |
| ACT | - | Active |
| ACT | - | Activation message designator |
| ACT | - | ATC Activation message |
| ACT/LAM | - | Activation Message / Logical Acknowledgement Message |
| ACTF | - | Aeronautical Charting Task Force |
| ACU | - | Airspace/Antenna Control Unit. See BSU |
| ACYC | - | Anticyclonic |
| AD | - | Administrative Domain (ENOC) |
| AD | - | Aerodrome |
| AD | - | Air Defence |
| AD | - | Airworthiness Directive |
| AD | - | CFMU/FDOD - Airspace Data Section |
| ADA | - | Advisory Area |
| ADAGES | - | Action Plan Definition on the Basis of Architecture studies from GAAS for EATMS |
| ADAP | - | Automated Downlink of Airborne Parameters |
| ADAPT | - | ATS Data Acquisition, Processing and Transfer Panel (ICAO) |
| ADC | - | Air Defence Centre / Command / Clearance |
| ADC | - | Air Data Computer |
| ADC | - | Analog to Digital Converter |
| ADCA | - | Air Defence Classification Area |
| ADCE | - | Aircraft Data Circuit-Terminating Equipment |
| ADCP | - | Air Defence Command Post |
| ADD | - | Architectural Design Document |
| ADD | - | Average Delay per Delayed Flight |
| ADDI | - | Automated Digital Data Interchange (ICAO) |
| ADDN | - | Addition or Additional |
| ADDR | - | Address |
| ADE | - | Air Defence Element |
| ADE | - | Autonomous Display Equipment |
| ADEG | - | ATS Data Exchange Group |
| ADEP | - | Aerodrome of Departure |
| ADES | - | Aerodrome of Destination |
| ADEXA | - | Air Defence Exercise Area |
| ADEXP | - | ATS Data Exchange Presentation (message format used for IFPS); ATS Data Exchange Program Format |
| ADF | - | Automatic Direction Finder |
| ADFL | - | Augmented Dynamic Flight Leg |
| ADGE | - | Air Defence Ground Environment |
| ADJ | - | Adjacent |
| ADI | - | Aerodrome Control Instrument |
| ADI | - | Attitude Director lndicator |
| ADI | - | Attitude Display Indicator |
| ADIDS | - | Advanced Data & Image Distribution System (CCTV Application) |
| ADIRS | - | Air Data Inertial Reference System |
| ADIRU | - | Air Data Inertial Reference Unit |
| ADIS | - | Automatic dependent surveillance and Data Link Interim System |
| ADIS | - | Automatic dependent surveillance and Data Link Interim System |
| ADIS (P) | - | Automated Data Interchange System (Panel) - ICAO |
| ADIZ | - | Air Defence Identification Zone |
| ADLP | - | Aircraft Data Link Processor (the Mode S subnetwork function onboard the aircraft that implements the OSI network layer protocols) |
| ADM | - | Administrative/Administration |
| ADM | - | Aeronautical Decision Making |
| ADM | - | Average Delay per Movement |
| ADM | - | Airborne Data Bus |
| ADM | - | Air Data Module |
| ADMA | - | Aviation Distributors and Manufacturers Association |
| ADMD | - | Airspace Data Management & Distribution |
| ADNC | - | Air Defence Notification Centre (GR) |
| ADNS | - | Aeronautical Radio Incorporated Data Network Service |
| ADOC | - | Air Defence Operations Centre |
| ADOLT | - | Air Defence Liaison Team |
| ADORA | - | Analysis and Definition of the Operational Requirements for ATM |
| ADP | - | Activity Predictor Display |
| ADP | - | ATFM Daily Plan |
| ADP | - | Automated Data Processing or Auxiliary Data Processing |
| ADPG | - | ATM Data Processing Sub-Group |
| ADR | - | Advisory Route |
| ADR | - | Air Data Reference |
| ADR | - | Airfield Damage Repair |
| ADR | - | Average Delay per Regulated Flight |
| ADREP | - | Accident/Incident Reporting System |
| ADRS | - | Air Defence Radar Site |
| ADS | - | Air Data System |
| ADS | - | Automatic Dependent Surveillance |
| ADS-A | - | Automatic Dependent Surveillance-Addressed |
| ADS-B | - | Automatic Dependent Surveillance-Broadcast |
| ADS-C | - | Automatic Dependent Surveillance-Contract |
| ADS-P | - | Automatic Dependent Surveillance-Panel (ICAO) |
| ADS-R | - | Automatic Dependent Surveillance-Report |
| ADSEL | - | Address Selective SSR System (UK) |
| ADSIA | - | Allied Data Systems Interoperability Agency |
| ADSP | - | ADS Processor |
| ADSP | - | Automatic Dependent Surveillance Panel (ICAO) |
| ADSU | - | ADS Unit |
| ADT | - | Air Data Tester |
| ADT | - | Approved Departure Time |
| ADTI | - | Additional Technical Information (ODS - ESCO) |
| ADUG | - | Airport Database User Group |
| ADV | - | Advise |
| ADV | - | Aerodrome Control Visual |
| ADVCTN | - | Advection |
| ADVON | - | Advanced Echelon |
| ADVY | - | Advisory |
| ADZ | - | Advise |
| ADZD | - | Advised |
| ADZY | - | Advisory |
| AE | - | ATM Engineering |
| AE | - | Application Entity |
| AE | - | United Arab Emirates (ISO Country Code) |
| AEA | - | Association of European Airlines |
| AECB | - | Atomic Energy Control Board |
| AECG | - | ACAS Evaluation and Co-ordination Group |
| AFCS | - | Automatic Flight Control System |
| AEEC | - | Airlines Electronic Engineering Committee |
| AEFMP | - | Algeria, Spain, France, Maroc, Portugal Project |
| AEGIS | - | Airborne Early Warning Ground Environment Integrated Segment |
| AEGIS | - | ATM European Group for Improvement of Scenarios |
| AEG-TFK | - | AEG-Telefunken |
| AEM | - | Airports & Environment Management (Eurocontrol) |
| AENA | - | Aeropuertos Espanoles y Navegation Aerea (ES)/Spanish Airport and Air navigation Administration |
| AERA | - | Automated En-Route Air Traffic Control |
| AEREA | - | Association of European Research Establishments in Aeronautics |
| AEROSAT | - | Aeronautical Satellite Council |
| AES | - | Aircraft/Airborne Earth Station (ICAO - ADS) |
| AES | - | ATC Engineering Section |
| AES | - | Automatic Enhanced Surveillance |
| AEV | - | Annual Equivalent Value |
| AEW | - | Airborne Early Warning |
| AEWPD | - | Adapted EATM Work Programme Document |
| AF | - | Air Force |
| AF | - | Air France (airline) |
| AF | - | Audio Frequency (VCS) |
| AF | - | DME Arc to a Fix (ARINC 424 Path Terminator) |
| AFA | - | Association of Flight Attendants |
| AFAS | - | Aircraft in the Future ATM System |
| AFAST | - | Active Final Approach Spacing Tool |
| AFB | - | Air Force Base |
| AFC | - | Airport Facilities Control (ICAO) |
| AFC | - | Area Forecast Center |
| AFC | - | ATC Frequency Change (service) |
| AFCAC | - | African Civil Aviation Commission |
| AFCNF | - | Air Force Central NOTAM Facility |
| AFCS | - | Automatic Flight Control System |
| AFD | - | Airport Facility Directory |
| AFD | - | Associated Flight Details |
| AFDK | - | After Dark |
| AFDS | - | Autopilot Flight Director System (also A/P F/D) |
| AFFSC (E) | - | Air Forces Flight Safety Committee (Europe) |
| AFG | - | Advisory Financial Group (ex-FCG/Eurocontrol) |
| AFI | - | Africa-Indian Ocean Region (ICAO) |
| AFIL | - | Air Filed Flight Plan |
| AFIS | - | Airport/Aerodrome Flight Information Service |
| AFISO | - | Aerodrome Flight information Service Officer |
| AFIZ | - | Aerodrome Flight information Zone |
| AFL | - | Actual Flight Level |
| AFL | - | Assigned Flight Level |
| AFM | - | Yes or Affirm or Affirmative or That is Correct |
| AFM | - | Airplane Flight Manual |
| AFMS | - | Advanced Flight Management System |
| AFMSG | - | Audit and Financial Matters Sub-Group |
| AFN | - | Air Traffic Services Facilities Notification |
| AFN | - | Airspace/Flow Management & Navigation Business Division (Eurocontrol) |
| AFP | - | Active Flight Plan Processing |
| AFP | - | Area Forecast Panel |
| AFP | - | ATC Flight Plan Proposal |
| AFPA | - | Automated Flight Plan to Track Association |
| AFPL | - | ADEXP Filed Flight Plan |
| AFRAA | - | African Airlines Association |
| AFS | - | Advanced Functional Simulator |
| AFS | - | Aeronautical Fixed Services |
| AFS | - | Automatic Flight System |
| AFSATCOM | - | Airborne Satellite Communication |
| AFSS | - | Automated Flight Service Station |
| AFT | - | After (time or place) |
| AFTN | - | Aeronautical Fixed Telecommunication Network |
| AFW | - | Area Flows Window |
| AFWA | - | Automatic Flight Weather Advisory |
| AGA | - | Aerodromes and Ground Aids |
| AGARD | - | Advisory Group on Aeronautical Research and Developments |
| AGAS | - | European Action Group for ATM Safety |
| AGATE | - | Advanced General Aviation Transport Experiments |
| AGC | - | Automatic Gain Control (VCS) |
| AGCS | - | Air-Ground Communication System |
| AGCSG | - | Air/Ground Communication Sub-Group Meeting |
| AGDC | - | Air/Ground Data Communications |
| AGDC-SG | - | Air/Ground Data Communications Sub Group. See AGSG |
| AGDC-TF | - | Air/Ground Data Communications-TF (ODT) |
| AGDL | - | Air-Ground Data Link |
| AGDLS | - | Air-Ground Data Link System |
| AGL | - | Above Ground Level |
| AGLAE | - | Air-Ground Data Link Applications Experimentation |
| AGN | - | Again |
| AGN | - | Agenda |
| AGOD | - | Advisory Group on Deliverables |
| AGR | - | Agreement |
| AGSG | - | Air / Ground Data Communication Sub group |
| AGVC-SG | - | Air/Ground Voice Communication Sub Group |
| AHDG | - | Assigned Heading |
| AHEAD | - | Automation and Harmonisation of European Aeronautical Data |
| AHGSO | - | Ad Hoc Group of Senior Officials |
| AH MI | - | Airborne Human Machine Interface |
| AHRS | - | Attitude and Heading Reference System |
| AHS | - | American Helicopter Association |
| AI | - | Artificial Intelligence |
| AI | - | Air India (airline) |
| AIA | - | Aerospace Industries Association |
| AIAA | - | American Institute of Aeronautics and Astronautics |
| AIAA | - | Area of Intense Aerial Activity |
| AIB | - | Aeronautical Information Bulletin (EAD) |
| AIC | - | Aeronautical Information Circular |
| AICB | - | Air Initiated Comm-B Protocol |
| AICG | - | Ab Initio Co-ordination Group |
| AICG | - | ACAS Implementation Co-ordination Group |
| AICG | - | Airport Interface Co-ordination Group |
| AICM | - | Aeronautical Information Conceptual Model (EAD) |
| AID | - | Aid or Aircraft Identification |
| AIDA | - | Aeronautical Information and Data handling Austria |
| AIDC | - | ATS Interfacility Data Communications (ICAO) |
| AIDS | - | Aircraft Integrated Data System |
| AIG | - | ACAS Implementation Group ; Automatic Input Generation |
| AIG | - | Accident Investigation and Prevention |
| AIL | - | Aeronautical Item Location Bank |
| AIM | - | Airman's Information Manual |
| AIM | - | ATFM Information Message |
| AIM-FANS | - | Airbus Interoperable Modular FANS |
| AIMS | - | Airplane Information Management System (Boeing 777) |
| AIMS | - | Aircraft Integrated Monitoring (Information Management) System |
| AIP | - | Aeronautical Information Publication |
| AIPN | - | Appointing authority |
| AIR | - | Armament Initiative and Requirements |
| AIR 4653 | - | Aerospace Information Report 4653 - (Flight Management Systems Review) |
| AIR | - | Air Control |
| AIRAC | - | Aeronautical Information Regulation and Control |
| AIRCOM | - | Aircraft Communications |
| AIREP | - | Air-Report (ICAO) |
| AIRMET | - | Air Meteorological Information Report which may affect the safety of low-level aircraft operations |
| AIRPROX | - | The code word used in air traffic incident report to designate aircraft proximity (ICAO) |
| AIRS | - | Advanced Infrared Sounder |
| AIS | - | Aeronautical Information Services |
| AISAP | - | AIS Automation Specialist Panel |
| AISAS | - | Aeronautical Information Services Automated System |
| AISC | - | Aeronautical Mobile Communications System Panel |
| AISC | - | Aeronautical Industry Service Communication |
| AISG | - | AIS Automation Group |
| AISPOP | - | AIS Planning and Operations Subgroup |
| AISS | - | Aeronautical Information Server System |
| AIS-TF | - | AIS Training Task Force |
| AISU | - | Aeronautical Information Service Unit |
| AITSC | - | Administrative IT Steering Committee |
| AIXM | - | Aeronautical Information Exchange Model |
| AKARD | - | Available Knowledge And required system Research and Development |
| AL | - | Aircraft Label |
| AL | - | Albania (ISO Country Code) |
| AL | - | Alerting Service |
| AL | - | Allegheny |
| ALA | - | Alighting Area |
| ALB | - | Alternative Label |
| ALCC | - | Airlift Central Co-ordination Centre |
| ALCE | - | Airlift Control Element |
| ALCM | - | Air Launched Cruise Missile |
| ALD | - | Airlift Division |
| ALERFA | - | Alert Phase |
| Alert | - | Alert phase |
| Alert Indicator | - | (visual or auditory) which provides information to the flightcrew in a timely manner about an event requiring pilot awareness. |
| ALF | - | Aloft |
| ALIM | - | Altitude Limit (Positive RA Altitude Threshold) |
| ALLA | - | Allied Long Lines Agency |
| ALMC | - | Airlift Movement Cell |
| ALO | - | Air Force Liaison Officer |
| ALPA | - | Air Line Pilots Association |
| ALQDS | - | All Quadrants |
| ALR | - | Alerting message |
| ALRS | - | Alerting Service |
| ALRT | - | Alert |
| ALS | - | Approach Lighting System |
| ALS | - | Architecture Layer Structure (ISO) |
| ALS | - | Automatic Line Switch (RMCDE) |
| ALS | - | Automatizovany Letisni System (CZ) /Automated Airport System |
| ALSEC | - | All Sectors |
| ALSF-2 | - | High Intensity Approach Lighting Systerm with Sequenced Flashing Lights. |
| ALSTG | - | Altimeter Setting |
| ALT | - | Airborne Link Terminal |
| ALT | - | Altitude |
| ALT | - | Alternate |
| ALTM | - | Altimeter |
| ALTN | - | Alternate Aerodrome |
| ALTNLY | - | Alternately |
| ALT HOLD | - | Altitude Hold Mode |
| ALTRV | - | Altitude Reservation System |
| ALWF | - | Actual Wind Factor |
| AM | - | Aeromexico |
| AM | - | Airspace Management |
| AM | - | Amplitude Modulation |
| AM | - | Armenia (ISO Country Code) |
| AM | - | Arrival Manager |
| AM | - | Attribute Modification |
| AMA | - | Area Minimum Altitude |
| AMA | - | Airlift Management Agency |
| AMAN | - | Arrival Manager (APATSI) |
| AMC | - | Airspace Management Cell |
| AMC | - | АТС Microphone Check (service) |
| AMC | - | Avionics Maintenance Conference |
| AMC/CADF | - | Airspace Management Cell – ECAC Centralised Airspace Data Function |
| AMCP | - | Aeronautical Mobile Communication Panel (ICAO) |
| AMD | - | Administrative Management Domain |
| AMD | - | Advisory Map Display |
| AMD | - | Amend or Amended |
| AMD | - | Arrival manager Display |
| AMDP | - | Airspace Management Data Processing |
| AMDP-TF | - | EATCHIP Airspace Management Data Processing Task Force |
| AMDT | - | Amendment (ICAO) |
| AMDWP | - | Aeromedical Working Party |
| AME | - | ATM Message Exchange |
| AMEG | - | Air Miss Evaluation Group |
| AMGR | - | Airport Manager |
| AMHS | - | Aeronautical Message Handling Service |
| AMI | - | Airline Modifiable Information |
| AMI | - | Administrative and Management Information Software |
| AMID | - | Approach Multi-Input Device (ODID) |
| AMJ | - | Advisory Material Joint |
| AMLCD | - | Active Matrix Liquid Crystal Display |
| AML (WP) | - | Airfield Markings and Lighting (Working Party) |
| AMN | - | Airspace Management and Navigation (EATM Unit) |
| AMOC | - | ATFM Air Traffic Flow Management |
| AMOC | - | ATFM Modelling Capability |
| AMOS | - | Automatic Meteorological Observing System |
| AMOS | - | ARTAS Maintenance and Operational Support organisation |
| AMOSS | - | Airline Maintenance and Operation Support System |
| AMPS | - | American Mobile Phone System |
| AMS | - | Aeronautical Mobile Service Air Mass |
| AMS | - | Airspace Management Service |
| AMS | - | ATC Model-Simulations Studies |
| AMS(R)S | - | Aeronautical Mobile Satellite (Route) Service |
| AMSC | - | Allied Military Security Code |
| AMSL | - | Above Mean Sea Level |
| AMSS | - | Aeronautical Mobile Satellite Services |
| AMSS | - | Aeronautical Mobile Satellite System |
| AMSS | - | Automatic Message Switching System |
| AMSSP | - | Aeronautical Mobile Satellite Service Panel |
| AMT | - | ADS Mediterranean Trials |
| AMTI | - | Adaptive Moving Target Indicator |
| AN | - | Access Node (RMCDE) |
| ANA | - | Aeroportos e Navegacao Аёгеа (PT) |
| ANA | - | All Nippon Airways |
| ANA-EP | - | Aeroportos e Navegacao Аёгеа Empresa Publica (PT) |
| ANC | - | Access Network Computer |
| ANC | - | Air Navigation Commission / Conference (ICAO) |
| ANCAT | - | Abatement of Nuisances Caused by Air Transport (ECAC environmental policy committee (ENVAL) |
| ANDRA | - | Advanced Node for Data Relay in ATN |
| ANDS | - | ANS Department |
| ANERC | - | Advanced New En-Route Centre (UK) |
| ANLYS | - | Analysis |
| ANM | - | ATFM Notification Message (CFMU / ECAC States) |
| ANOVA | - | Analysis of Variance |
| ANP | - | Actual Navigation Performance |
| ANP | - | Air Navigation Plan |
| ANPP | - | Air Navigation Plan Publication |
| ANS | - | Air Navigation Service |
| ANS | - | Answer |
| ANS/CR | - | Air Navigation Services of the Czech Republic |
| ANSA | - | International Advisory Group Air Navigation Services |
| ANSEP | - | Air Navigation Services Economics Panel (ICAO) |
| ANSI | - | American National Standards Institute |
| ANSIR | - | Advanced Navigation System Inertial Reference |
| ANSO | - | Air Navigation Services Offices (Irish aviation authority) |
| ANSP | - | Air Navigation Service Provider |
| ANT | - | Airspace and Navigation Team |
| АО | - | Aircraft Operator |
| АО | - | Airlines Operator |
| АО | - | Arrival Operations |
| АО | - | ATM Operations |
| AOA | - | Aircraft Operating Agency (e.g. Airlines) |
| AOA | - | Angle-of-Attack |
| AOA | - | Airport Operations Area |
| AOB | - | Air Order of Battle |
| AOB | - | Angle of Bank |
| AOC | - | Advanced Operational Capability |
| AOC | - | Aerodrome Obstruction/Obstacle Chart |
| AOC | - | Aeronautical Operational Communications |
| AOC | - | Aircraft Operating Company |
| AOC | - | Aircraft Operations Centre (ICAO) |
| AOC | - | Airline Operation Control |
| AOC | - | Aeronautical Operation Control (communications which support safety and regularity of flight that normally take place between aircraft and the operator) |
| AOC | - | Assume of Control (ODID) |
| AOC | - | Auxiliary Output Chip |
| AOC | - | Aeronautical Operational Control |
| AOC | - | Air Operator's Certificate |
| AOC | - | Airline Operational Communications |
| AOCC | - | Aircraft Operator Control Centre |
| AOCI | - | Airport Operators Council International |
| AOCP | - | Airborne Operational Computer Programme |
| AOCS | - | Attitude and Orbit Control System |
| AOCU | - | Aircraft Operator Control Unit |
| AOF | - | AIS Office (EAD) |
| AOF | - | Allocation of Functions |
| AOG | - | Aircraft On Ground |
| AOI | - | Aircraft Operations Information |
| AOI | - | Area of Operational Interest |
| AOI | - | AIS Office |
| AOIS | - | Aeronautical Operational Information System |
| AOM | - | Aircraft Operations Manual |
| AOP | - | Aeronautical OSI Profile |
| AOPA | - | Aircraft Owner and Pilot Associations |
| AOPG | - | Aerodrome Operations Group (ICAO) |
| AOPTF | - | Aerodrome Operations Task Force |
| AOR | - | Area of Responsibility |
| AOR | - | Atlantic Ocean Region (ICAO) |
| AOR-E | - | Atlantic Ocean Region - East (ICAO) |
| AORTF | - | ATM Added Functionality Operational Requirements Task Force |
| AOR-W | - | Atlantic Ocean Region - West (ICAO) |
| AOS | - | Airport Operations Strategy Drafting Group |
| AOT | - | Airport Operations Team |
| AOU | - | Aircraft Operator Unit |
| AOWIR | - | Aircraft Operator What-If Re-routing |
| AOWP | - | Airport Operations Work Plan |
| AP | - | Airport |
| AP | - | Auto-Pilot |
| AP | - | Application Process APA Allied Pilots Association |
| APANPIRG | - | Asia/Pacific Air Navigation Planning and Implementation Regional Group |
| APAPI | - | Abbreviated Precision Approach Path Indicator |
| APATSI | - | Airport / Air Traffic Systems Interface (ECAC) |
| APB | - | APATSI Project Board |
| APC | - | Aeronautical Passenger Communications / Correspondence |
| APC | - | Aeronautical Public Correspondence |
| APC | - | Assistant Planning Controller |
| APCH | - | Approach |
| APD | - | Activity Predictor Display |
| APDLC | - | Aircraft Proximity Data Link Communication (ICAO) |
| APDSG | - | ATM Procedures Development Sub-Group |
| APE | - | Analysis Programme for Evaluation |
| API | - | Application Programming Interface |
| APIS | - | Advanced Passenger Information system |
| APIRG | - | Africa-Indian Ocean Planning and Implementation Regional Group (ICAO) |
| APL | - | Abbreviated Flight Plan |
| APL | - | Applied Physics Laboratory |
| APL | - | ATC Flight Plan |
| APLGT | - | Airport Lighting |
| APM | - | Architecture Project Management |
| APMB | - | ACAS Programme Management Board |
| APMS | - | Automated Performance Measurement System |
| APO | - | Airport Operator |
| APO | - | Aircraft Performance and Operations |
| APOD | - | Airport of Debarkation |
| APP | - | Approach Centre / Control (office/service) |
| APP controller/director | - | Approach controller/director |
| App. | - | Appendix |
| APPA-SG | - | ATFM Policies and Principles Advisory Sub-Group |
| APP-ASS | - | Approach-Assistant |
| APPR | - | Approach/Approach Mode |
| APR | - | Automatic Position Reporting |
| APRT | - | Airport |
| APRX | - | Approximate or Approximately |
| APS | - | Approach Control Surveillance |
| APSG | - | ACAS Programme Steering Group |
| APSG | - | After Passing |
| APT | - | Airport(s) |
| APT | - | Airspace Planning Team became ANT (March 94) |
| APU | - | Auxiliary Power Unit |
| APV | - | Approve or Approved or Approval |
| APW | - | Area Proximity Warning |
| AQAP | - | Allied Quality Assurance Publication |
| AQG | - | Agency Quality Group |
| AQP | - | Advanced Qualification Programme |
| A-QPSK | - | Aviation Quadrature Phase Shift Keying |
| AR | - | Agency Representative (CIP) |
| AR | - | Air Route |
| AR | - | Automatic Reminder |
| AR | - | Argentina (ISO Country Code) |
| AR-1 | - | Approach Radar 1 |
| ARAC | - | Aviation Rulemaking Advisory Committee |
| ARB | - | Authoritative Representative Body |
| ARC 2000 | - | Automatic Radar Control for the 21st Century (CEE) |
| ARC | - | Airlift Requirement Centre |
| arc | - | assigned rate of climb/descent |
| ARC | - | Advanced Research for/in Air Traffic Control |
| ARC (ARCH) | - | CFMU - Archive System |
| ARCC | - | Air Rescue Co-ordination Centre |
| ARCH | - | Archives and Quality Control System |
| ARCID | - | Aircraft Identification |
| ARCOS | - | Arrival Co-ordination System |
| ARCP | - | Air Refuelling Control Point |
| ARDEP | - | Analysis / Assessment of Research and Development in Eurocontrol Programmes |
| ARDRS | - | Automatic Radar Data Recording System |
| ARDS | - | ATM Architecture and overall system engineering |
| ARETA | - | ATM with RNAV in Extended Terminal Area |
| ARFA | - | Allied Radio Frequency Agency |
| ARFF | - | Airport Rescue and Fire Fighting |
| ARFOR | - | Area Forecast |
| ARH | - | Architecture |
| ARIBA | - | ATM system safety criticality Raised Issues in Balancing Actors Responsibility |
| ARINC | - | Aeronautical Radio Incorporated (a nonprofit corporation owned by member airlines to define form, fit and functions of avionics equipment) |
| ARINC 306 | - | Guidance For Designers Of Aircraft- Electronic Installations |
| ARINC 307 | - | Aircraft Integrated Data System Wire Bundle Provisions |
| ARINC 404A | - | Air Transport Equipment Cases And Racking |
| ARINC 406A | - | Airborne Electronic Equipment |
| ARINC 408A | - | Air Transport Indicator Cases And Mounting |
| ARINC 413A | - | Guidance For Aircraft Power Utilisation And Transient Protection |
| ARINC 414 | - | General Guidance For Equipment And Installation Engineers |
| ARINC 415 | - | Operation/Technical Guidelines On Failure Warning and Functional Test |
| ARINC 419 | - | Digital Data System Compendium |
| ARINC 421 | - | Guidance For Standard Subdivision of ATA Spec 100 Numbering System for Avionics |
| ARINC 422 | - | Guidance For Modification Status Indicators & Avionics Service Bulletins |
| ARINC 424 | - | Navigation System Data Base |
| ARINC 429 | - | Mark 33 Digital Information Transfer System |
| ARINC 528 | - | Airborne Tape Recorder |
| ARINC 533A | - | Airborne HF SSB/AM System |
| ARINC 541 | - | Airborne Magnetic Flight Data Recorder |
| ARINC 542 | - | Airborne Oscillograph Flight Data Recorder |
| ARINC 542A | - | Digital Flight Data Recorder |
| ARINC 551 | - | Airborne Glide Slope Receiver - Mark 2 |
| ARINC 557 | - | Airborne Voice Recorder |
| ARINC 559A | - | Mark 2 Airborne HF SSB/AM System |
| ARINC 561 | - | Air Transport Inertial Navigation System - INS |
| ARINC 566 | - | Airborne VHF Communications Transceiver And Mark 1 VHF SATCOM System |
| ARINC 566A | - | Mark 3 VHF Communications Transceiver |
| ARINC 569 | - | Airborne Distance Measuring Equipment |
| ARINC 569 | - | Heading and Altitude Sensor (HAS) |
| ARINC 571 | - | Inertial Reference System (INS) |
| ARINC 574 | - | Passenger Announcement, Entertainment & Service Multiplex System |
| ARINC 575 | - | Mark 3 Subsonic Air Data System (Digital) |
| ARINC 576 | - | Mark 4 Subsonic Air Data System |
| ARINC 577 | - | Audible Warning System |
| ARINC 578 | - | Airborne ILS Receiver |
| ARINC 579 | - | Airborne VOR Receiver |
| ARINC 585 | - | Electronic Chronometer System |
| ARINC 591 | - | Quick Access Recorder For Aids System(OAR) |
| ARINC 592 | - | Airborne Passenger Tape Record |
| ARINC 594 | - | Ground Proximity Warning System (GPWS) |
| ARINC 595 | - | Barometric Altitude Rate Computer |
| ARINC 596 | - | Mark 2 Airborne SELCAL System |
| ARINC 597 | - | Aircraft Communications Addressing And Reporting System (ACARS) |
| ARINC 597A | - | Enhanced ACARS Avionics |
| ARINC 59MA | - | Airborne Announcement Tape Reproducer |
| ARINC 600 | - | Air Transport Avionics Equipment Interfaces |
| ARINC 601 | - | Control/Display Interfaces |
| ARINC 602 | - | Test Equipment Guidance |
| ARINC 602A | - | Test Equipment Guidance |
| ARINC 603 | - | Airborne Computer Data Loader |
| ARINC 604 | - | Guidance For Design And Use Of built-In Test Equipment (BITE) |
| ARINC 605 | - | Users Guide For ARINC 616 Avionics Subset Of ATLAS Language |
| ARINC 606 | - | Guidance For Electrostatic Sensitive Device Utilisation & Protection, Sup. 1 |
| ARINC 608 | - | Standard Modular Avionics Repair And Test System (SMART) |
| ARINC 609 | - | Design Guidance For Aircraft Electrical Power Systems |
| ARINC 610 | - | Guidance For Design and Integration of Aircraft Avionics Equipment In Simulators, Supplement 1 |
| ARINC 611 | - | Guidance For The Design and Installation Of Fuel Quantity Systems, Sup. 1 |
| ARINC 612 | - | BITE Glossary |
| ARINC 613 | - | Guidance for Using the Ada Programming Language in Avionics Systems |
| ARINC 614 | - | Standard Firmware Loader For Avionics Shops |
| ARINC 615 | - | Airborne Computer High Speed Data Loader, Supplement 3 |
| ARINC 616 | - | Avionics Subset of ATLAS Language |
| ARINC 620 | - | Data Link Ground System Standard And Interface Specification |
| ARINC 622-1 | - | The ACARS Convergence Process |
| ARINC 624 | - | Design Guidance For Onboard Maintenance System |
| ARINC 626 | - | Standard ATLAS For Modular Test |
| ARINC 627 | - | Programmers Guide For Smart Systems Using ARINC 626 ATLAS |
| ARINC 629 | - | Multi Tester Data Bus: Part 1 - Technical Description |
| ARINC 629 | - | Multi-Transmitter Data Bus |
| ARINC 631 | - | Aviation Packet Communications Functional Description |
| ARINC 651 | - | Design Guidance For Integrated Modular Electronics |
| ARINC 659 | - | Backplane Data Bus for Integrated Modular Avionics |
| ARINC 701 | - | Flight Control Computer System |
| ARINC 702 | - | Flight Management Computer, Supplement 4& 5 |
| ARINC 703 | - | Thrust Control Computer |
| ARINC 704 | - | Inertial Reference System, Supplement 6 |
| ARINC 705 | - | Altitude and Heading Reference System(AHRS) |
| ARINC 706 | - | Subsonic Air Data System |
| ARINC 707 | - | Radio Altimeter, Supplement 6 |
| ARINC 708 | - | Airborne Weather Radar |
| ARINC 709 | - | Airborne Distance Measuring Equipment, Supplement 8 |
| ARINC 709A | - | Precision Airborne Distance Measuring Equipment |
| ARINC 710 | - | Mark 2 Airborne ILS Receiver |
| ARINC 711 | - | Mark 2 Airborne VOR Receiver |
| ARINC 714 | - | Mark 3 Airborne SELCAL Systems |
| ARINC 715 | - | Airborne Passenger Address Amplifier |
| ARINC 716 | - | Airborne VHF Communications Transceiver |
| ARINC 717 | - | Flight Data Acquisition And Recording System |
| ARINC 718 | - | Mark 3 ATC Transponder |
| ARINC 719 | - | Airborne HF/SSB System |
| ARINC 720 | - | Digital Frequency/Function Selection for Airborne |
| ARINC 722 | - | Electronic Equipment Protection Video System |
| ARINC 723 | - | Ground Proximity Warning System (GPWS) |
| ARINC 724 | - | Mark 2 Aircraft Communications |
| ARINC 724A | - | Mark 2 ACARS Avionics |
| ARINC 724B | - | Aircraft Communications Addressing and Reporting System (ACARS) |
| ARINC 725 | - | Electronic Flight Instruments (EFIS) |
| ARINC 726 | - | Flight Warning Computer System |
| ARINC 727 | - | Airborne Microwave Landing System |
| ARINC 728 | - | Avionics Refrigeration and Cooling System (ARCS) |
| ARINC 729 | - | Analog And Discrete Data Converter System |
| ARINC 730 | - | Airborne Separator Assurance System |
| ARINC 731 | - | Electronic Chronometer |
| ARINC 732 | - | Mark 2 Airborne Passenger Audio Entertainment Tape Reproducer, Supplement 1 |
| ARINC 735 | - | Traffic Alert and Collision Avoidance System(TCAS), Supplement 1 |
| ARINC 737 | - | On Board Weight and Balance System. Supplement 1 |
| ARINC 738 | - | Air Data and Inertial Reference System (ADIRS) |
| ARINC 741P1 | - | Aviation Satellite Communication System: Part I- Aircraft Installation Provisions |
| ARINC 741P4 | - | Aviation Satellite Communications System: Part 4 - Specification and Description Language |
| ARINC 742 | - | Design Guidance For Windshear Warning and Guidance Equipment |
| ARINC 743 | - | Airborne Global Positioning System Receiver |
| ARINC 743A | - | GPS/GLONASS Sensor |
| ARINC 744 | - | Full Format Printer |
| ARINC 745 | - | Automatic Dependent Surveillance, Supplement 1 |
| ARINC 746 | - | Cabin Communications System, Supplement 1 |
| ARINC 747 | - | Flight Data Recorder |
| ARINC 748 | - | Communications Management Unit (CMU) |
| ARINC 750 | - | VHF Data Radio (VDR) |
| ARINC 751 | - | Gate-Aircraft Terminal Environment Link (Gatelink) - Aircraft Side |
| ARINC 752 | - | TFTS Airborne Radio Sub-System |
| ARINC 753 | - | HF Data Link System |
| ARINC 757 | - | Cockpit Voice Recorder (CVR) |
| ARINC539A | - | Airborne 400 Hz AC Tape Reproducer |
| ARLO | - | Air Liaison Officer |
| ARM | - | ADS Report Message |
| ARM | - | Air Request Message |
| ARM | - | Anti Radiation Missile |
| ARM | - | Armenia |
| ARMATS | - | State Closed Joint-Stock Company of Armenian Air Traffic Services |
| ARN | - | ATS Routes and Associated Navigation Means |
| ARN-1 (Table) | - | Basic ATS Route Network in the Lower and Upper Airspace |
| ARN-2 (Table) | - | Radio Navigation Aids Associated with the Basic ATS Route Network Terminal Area and Instrument Approach Procedures |
| ARN-V2 | - | ATS Route Network - Version 2 (ECAC, EATM) |
| ARN-V3 | - | ATS Route Network - Version 3 (ECAC, EATM) |
| ARNG | - | Arrange |
| ARO | - | Air Traffic Service Reporting Office |
| ARP | - | Aerodrome Reference Point |
| ARP | - | Aerospace Recommended Practice |
| ARP | - | Automated Route Planning |
| ARPA | - | Advanced Research Project Agency |
| ARPL | - | ADEXP Format Repetitive Flight Plans Message |
| ARQ | - | Automatic error Correction |
| ARQ | - | Automatic Request Repeat |
| ARQ | - | Automatic Response to Query |
| ARR | - | Arrive or Arrival or Arrival Message |
| ARR SP | - | Arrival Sequence Planner |
| ARS | - | Aeronautical Radio Navigation Service |
| ARS | - | Avoidance Routing Scheme |
| ARS | - | Special air-report (message type designator) |
| ARSA | - | Airport Radar Serve Area |
| ARSC | - | Air Rescue Sub Centre |
| ARSR | - | Air Route Surveillance Radar |
| ARST | - | Arresting (specify (part of) aircraft arresting equipment) |
| ART | - | Analysis and Replay Tool |
| ARTAS | - | Air Traffic Management Surveillance Tracker and Server System |
| ARTAS TF | - | ARTAS Task Force |
| ARTCC | - | Air Route Traffic Control Centre |
| Artemis | - | An ESA experimental telecommunications satellite hosting an EGNOS navigation transponder |
| ARTES-9 | - | Advanced Research in Telecommunication Systems |
| ARTS | - | Area Radar Training Squadron |
| ARTS | - | Automated Radar Terminal System |
| ARU | - | Archive to UNIX |
| ARU | - | Airspace Reservation Unit |
| AS | - | Airspeed |
| AS | - | Airspace |
| AS | - | Altostratus |
| AS, A-S | - | Anti-Spoofing |
| ASA | - | Aircraft Situation Awareness |
| ASA | - | Automated Support to ATC |
| ASA | - | Automatic Slot Assignment |
| ASA System | - | Automatic Slot Assignment System |
| ASAP | - | Aircraft Separation Assurance Programme |
| ASAP | - | As soon as possible / practicable |
| ASARS | - | Air Surveillance Airborne Radar System |
| ASAS | - | Airborne Separation Assurance System |
| ASC | - | Ascend to or Ascending to |
| ASCAP | - | Automatic SSR Code Assignment Procedure |
| ASCB | - | Avionics Standard Communication Bus |
| ASCII | - | American Standard Code for Information Interchange / Exchange |
| ASCOT | - | Airport Slots Compliance Tools |
| ASDA | - | Accelerated Stop Distance Available |
| ASDAR | - | Aircraft to Satellite Data Relay |
| ASD | - | CFMU/ENGD - Architecture & System Design Section |
| ASDE | - | Airport Surface Detection Equipment |
| ASD-TF | - | Air Situation Display Task Force |
| ASE | - | Altimetry System Error |
| ASE | - | Application Service Element |
| ASECNA | - | Agency for the Safety of Air Navigation in Africa and Madagascar |
| ASEP | - | ACCS Surveillance Exploratory Prototype (NATO / SHAPE) |
| ASHTAM | - | NOTAM relating to volcanic and/or dust activity(ICAO) |
| ASI | - | Aerospace Sciences Inc. |
| ASI | - | Asia Region (ICAO) |
| ASI | - | Air Speed Indicator |
| ASIC | - | Application-Specific Integrated Circuit |
| ASM | - | Ad-hoc Schedule Message |
| ASM | - | AirSpace Management |
| ASMAC | - | Automated System for Management of Aeronautical Information and Charting |
| ASMC | - | Airspace Management Communications |
| ASMGCS | - | Advanced Surface Movement Guidance and Control Systems |
| ASMI | - | Airport Surface Movement Indicator |
| ASMT | - | ATM Safety Monitoring Tool |
| ASMTF | - | Airspace Management Task Force |
| ASN | - | Abstract Syntax Notation |
| ASN 1 | - | Abstract Syntax Notation One |
| ASNO | - | Approach Sequence Number |
| ASO | - | Air Surveillance Officer |
| ASOC | - | Air Sovereignty Operations Centre |
| ASOC | - | Army Support Operations Centre |
| ASOP | - | Airspace Organisation and Procedures System |
| ASOS | - | Automatic Surface Observing |
| ASP | - | Adjustable System Parameter |
| ASP | - | Aeronautical Fixed Service Systems Planning for Data Interchange Panel |
| ASP | - | Air Space |
| ASP | - | AIRCOM Service Processor (SITA) |
| ASP | - | Arrival Sequence Planner |
| asp | - | assigned speed |
| ASPH | - | Asphalt |
| ASPP | - | Aeronautical Fixed Service Systems Planning for Data Interchange Panel |
| ASQF | - | Application Specific Qualification Facility (part of EGNOS) |
| ASR | - | Airport Surveillance Radar (TAR) |
| ASR | - | Altimeter Setting Region |
| ASRS | - | Aviation Safety Reporting System |
| ASRT | - | Air Support Radar Team |
| ASSR | - | Assigned SSR code (FPPS/DECADE) |
| ASTA | - | Airport Surface Traffic Automation |
| ASTER | - | Aviation Safety Targets for Effective Regulation |
| ASTERIX | - | All-purpose Structured Eurocontrol Radar Information Exchange. |
| ASTP | - | ADS Studies and Trials Project |
| ASW | - | Anti Submarine Warfare |
| ASW | - | Air Situation Window |
| AT | - | At (an altitude) |
| AT | - | Actual Time Count Down |
| AT | - | Air Transport |
| AT | - | At Time |
| AT… | - | At (following by time at which weather change is forecast to occur) |
| AT | - | Austria (ISO Country Code) |
| AT | - | Royal Air Maroc (airline) |
| ATA | - | Actual Time of Arrival |
| ATA | - | Air Transport Association (of America) |
| ATA | - | Airport Traffic Area |
| ATAC | - | Airspace Traffic Data Capture |
| ATAF | - | Allied Tactical Air Force |
| ATAFF | - | Air Traffic Arbitrated Free Flight |
| ATAG | - | Air Transport Action Group |
| ATAR | - | Automatic Air Reporting |
| ATARS | - | Automatic Traffic Avoidance and Resolution System |
| ATAS | - | Air Traffic Advisory Service |
| ATC | - | Air Traffic Control |
| ATCA | - | Air Traffic Control Association (US) |
| ATCA | - | Allied Tactical Communications Agency |
| ATCA | - | Air Traffic Control Assistant |
| ATCAP | - | Air Traffic Control Automation Panel (ICAO) |
| ATCAS | - | (Sweden) ATC Automated System |
| ATCC | - | Air Traffic Control Centre |
| ATCC | - | Air Traffic Control Clearance |
| ATCCC | - | Air Traffic Control Command Centre |
| ATCEUC | - | Air Traffic Controllers European Unions Co- ordination |
| ATCgram | - | Illustration in graph form of the main functional levels of ATC systems |
| ATC-HMI | - | Air Traffic Control Human Machine Interface |
| ATCI | - | Airport ATC and Information systems |
| ATCO | - | Air Traffic Controller or Air Traffic Control Officer |
| ATCRBS | - | Air Traffic Control Radar Beacon System |
| ATCRU | - | Air Traffic Control Radar Unit |
| ATCS | - | Air Traffic Control Service |
| ATCS | - | Advanced Train Control Systems |
| ATCSCC | - | Air Traffic Control System Command Center |
| ATCSQ | - | ATC Safety Questionnaire |
| ATCT | - | Airport Traffic Control Tower |
| ATCU | - | Air Traffic Control Unit |
| ATD | - | Actual Time of Departure |
| ATD | - | Along Track Distance |
| ATDS | - | Airborne Tactical Data System |
| ATE | - | Automatic Test Equipment |
| ATFC | - | Air Traffic Flow Controller |
| ATFM | - | Air Traffic Flow Management |
| ATFM | - | CFMU/DEVD - ATFM Application Section |
| ATFMC | - | Air Traffic Flow Management Communications |
| ATFMO | - | Air Traffic Flow Management Organisation |
| ATFMP | - | Air Traffic Flow Management Position |
| ATFMS | - | Air Traffic Flow Management System |
| ATFMU | - | Air Traffic Flow Management Unit |
| ATFR | - | Air Traffic Flow Regulator |
| ATG | - | Air Traffic Generator |
| ATHR | - | Autothrust System |
| ATI | - | Automatic Tracking Initiation |
| ATIC | - | Administrative and Technical Inspection Committee(Agency structure) |
| ATIF | - | ATN Trials Infrastructure |
| ATILO | - | Administrative Tribunal of the International Labour Organisation |
| ATIS | - | Automatic Terminal Information Service |
| ATLAS | - | Air Traffic Land and Air Study [or Airborne Systems] (European Commission) |
| ATLC | - | Atlantic |
| Atm | - | Tyre Pressure (KG/cm3) |
| ATM | - | Air Traffic Management |
| ATM | - | Air Transportation Management |
| ATM | - | Asynchronous Transfer Mode |
| ATM 2000+ | - | Eurocontrol ATM Strategy for the Years 2000+ |
| ATMAS | - | Air Traffic Management Automated System (It. ATFM) |
| ATMC | - | Air Traffic Management Centre |
| ATMCP | - | ATM Operational Concept Panel (ICAO) |
| ATMCT | - | Air Terminal Movement Control Team Centre(NATS UK) |
| ATMG | - | Air Traffic Management Group |
| ATMO | - | Air Traffic Management Organisation |
| ATMOS | - | Air Traffic Management Operating System |
| ATMS | - | Advanced Air Traffic Management System |
| ATN | - | Aeronautical Telecommunications Network (the collection of ground subnetworks, air/ground subnetworks and airborne subnetworks interconnected by ATN routers that support computer-to-computer, internetwork communication and message transfer between host computers using the OSI ISO protocol architecture) |
| ATN EURET | - | see EURATN |
| ATN RD | - | Aeronautical Telecommunication Network Routing Domain |
| ATN RDC | - | Aeronautical Telecommunication Network Routing Domain Confederation |
| ATNC | - | ATN and Communication Architecture |
| ATNI | - | Aeronautical Telecommunication Network Internet |
| ATNP | - | Aeronautical Telecommunication Network Panel(ICAO) |
| ATNSI | - | ATN System Inc. (US) |
| ATO | - | Actual Time Overhead of Overflying (CFMU - CASA) |
| ATO | - | Airborne Traffic Observation |
| ATOC | - | Allied Tactical Operations Centre |
| ATOPS | - | Advanced Transport Operating System |
| ATOT | - | Actual Take Off Time |
| ATP | - | At…(time or place) |
| ATP | - | Airline Transport Pilot |
| ATPL | - | Airline Transport Pilot License |
| ATRAC | - | Air Navigation Services Employee Training Concept |
| ATRACC | - | ATC System for Riga Area Control Centre |
| ATRK | - | Alone Track Error |
| ATS | - | Air Traffic Services |
| ATS | - | Automatic Throttle System |
| ATSA | - | Air traffic Services Authority (Bulgaria &Croatia) |
| AT-SAT | - | Air Traffic Selection and Training |
| ATSD | - | Air Traffic Situation Display |
| ATSC | - | Air Traffic Service Communications (Communications related to air traffic services. This includes ATC, aeronautical and meteorological information, position reporting and services related to safety and regularity of flight) |
| ATSEP | - | Air Traffic Safety Electronics Personnel |
| ATSIS | - | Air Traffic Services Investigation System |
| ATSN | - | Air Traffic Service Network |
| ATSO | - | Air Traffic Services Operator |
| ATSORA | - | Air Traffic Services Outside Regulated Airspace |
| ATSP | - | Air Traffic Service Providers |
| ATSSD | - | ATS Standards Department |
| ATSU | - | Air Traffic Service Unit |
| ATSup | - | Air Traffic Supervisor |
| ATT | - | Along Track Tolerance |
| ATT | - | Attitude Indicator |
| ATTN | - | Attention |
| ATWR | - | Apron TWR |
| ATYP | - | Aircraft Type |
| ATZ | - | Aerodrome Traffic Zone |
| AU | - | Arbitrary Unit |
| AU | - | Australia (ISO Country Code) |
| AUA | - | ATC Unit Airspace |
| Aud | - | Audio aids |
| AUP | - | Airspace Use Plan |
| AURBO | - | Aurora Borealis |
| AUS | - | Airspace Utilisation Service |
| AUSOTS | - | Australian Organised Track Structure |
| AUSTRO CONTROL | - | Österreichische Gesellschaft für Zivilluftfahrt mbH (AT) |
| AUTH | - | Authority |
| AUTH | - | Autorized or Authorization |
| AUTO | - | Automated (Metar) No Human Intervention |
| AUTOB | - | Automatic Weather Reporting System |
| AUTOCAD | - | Automatic Computer Aided Design |
| AutoNav | - | Auto-Navigation |
| AUTOVON | - | Automatic Voice Network |
| AUW | - | All Up Weight |
| AUX | - | Auxilliary |
| AV | - | Audio-visual aids |
| AV | - | Avianca |
| AVAIL | - | Available |
| AVBL | - | Available |
| A-VASIS | - | Advanced Visual Approach Slope Indicator System |
| AVENUE | - | ATM Validation Environment for Use towards EATMS |
| AVG | - | Average |
| AVGAS | - | Aviation Gasoline |
| AVHRR | - | Advanced Very High-Resolution Radiometer |
| AVI | - | Audio/Video Interleaved |
| AVOL | - | Aerodrome Visibility Operational Level |
| AVPAC | - | Aviation VHF Packet Communications |
| AW | - | Area Width |
| AW | - | Aerial Work |
| AW/P | - | Active Way Point |
| AWACS | - | Airborne Warning and Control System |
| AWAS | - | Automated Weather Advisory Station |
| AWIPS | - | Advanced Weather Interactive Processing System |
| AWIR | - | Automatically generated What-If Re-routing |
| AWOG | - | All Weather Operations Group |
| AWOP | - | All Weather Operations Panel (ICAO) |
| AWOS | - | Automatic Weather Observing System |
| AWSS | - | Automated Weather Sensor System |
| AWP | - | Ancillary Working Position |
| AWP | - | Arrival Waypoint |
| AWP | - | Aviation Weather Processors |
| AWR/Rn | - | Alternative flight plan on the basis of the Aircraft Operator „What-If“ Re-route Function (AOWIR), whereby „n“ designates the current number of the AOWIR alternative flight plan |
| AWTA | - | Advise at What Time Table |
| AWX | - | All Weather |
| AWY | - | Airway |
| AY | - | Finnair (airline) |
| AZ | - | Aerodrome zone |
| AZ | - | Alitalia (airline) |
| AZ | - | Azerbaijan (ISO countries Codes) |
| AZM | - | Azimuth |
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