Aviation Glossary
| AFSFO | AFS Field Office |
| AFSFU | AFS Field Unit |
| AFSOU | AFS Field Office Unit (Standard is AFSFOU) |
| AFSS | Automated Flight Service Station |
| AFTN | Automated Fixed Telecommunications Network |
| AGL | Above Ground Level |
| AID | Airport Information Desk |
| AIG | Airbus Industries Group |
| AIM | Airman's Information Manual |
| AIP | Airport Improvement Plan |
| AIRMET | Airmen's Meteorological Information |
| AIRNET | Airport Network Simulation Model |
| AIS | Aeronautical Information Service |
| AIT | Automated Informtion Transfer |
| ALP | Airport Layout Plan |
| ALS | Approach Lighting System |
| ALSF1 | ALS with Sequenced Flashers I |
| ALSF2 | ALS with Sequenced Flashers II |
| ALSIP | Approach Lighting System Improvement Plan |
| ALTRV | Altitude Reservation |
| AMASS | Airport Movement Area Safety System |
| AMCC | ACF/ARTCC Maintenance Control Center |
| AMOS | Automated Meteorological Observation Station |
| AMP | ARINC Message Processor (OR) Airport Master Plan |
| AMVER | Automated Mutual Assistance Vessel Rescue System |
| ANC | Alternate Network Connectivity |
| ANG | Air National Guard |
| ANGB | Air National Guard Base |
| ANMS | Automated Network Monitoring System |
| ANSI | American National Standards Group |
| AOA | Air Operations Area |
| AP | Acquisition Plan |
| APP | Approach |
| APS | Airport Planning Standard |
| AQAFO | Aeronautical Quality Assurance Field Office |
| ARAC | Army Radar Approach Control (AAF) |
| ARAC | Aviation Rulemaking Advisory Committee |
| ARCTR | FAA Aeronautical Center or Academy |
| ARF | Airport Reservation Function |
| ARFF | Aircraft Rescue and Fire Fighting |
| ARINC | Aeronautical Radio, Inc. |
| ARLNO | Airline Office |
| ARO | Airport Reservation Office |
| ARP | Airport Reference Point |
| ARSA | Airport Service Radar Area |
| ARSR | Air Route Surveillance Radar |
| ARTCC | Air Route Traffic Control Center |
| ARTS | Automated Radar Terminal System |
| ASAS | Aviation Safety Analysis System |
| ASC | AUTODIN Switching Center |
| First | Previous | Next | Last |