| Abbreviation | Definition |
|---|---|
| AAG | Airline Accounting Guidelines |
| AAG | Anti Aircraft Gun |
| AAG | Associated Aircraft Group |
| AAHC | Australian Aviation Heritage Centre |
| AAHK | Airport Authority Hong Kong |
| AAI | Aircraft Armament Inc |
| AAIB | Air Accident Investigation Branch |
| AAIB | Air Accidents Investigation Branch |
| AAIB | Air Accidents Investigation Branch (United Kingdom) |
| AAIB | Aircraft Accident Investigation Bureau |
| AAIB | Aviation Accidents Investigation Branch |
| AAIC | Aircraft Accident Investigation Commission |
| AAIC | Aircraft Accident Investigation Committee |
| AAIM | Aerospace and Aviation in Manitoba |
| AAIP | Aircraft Availability Improvement Plan |
| AAIP | Approved Aircraft Inspection Programs |
| AAIR | Annual Airworthiness Information Report |
| AAIS | Aircraft Accident Investigation Safety |
| AAK | Accessory Aero Kit |
| AAL | Above Aerodrome Level |