| Abbreviation | Definition |
|---|---|
| AFD | Awaiting Freight Details |
| AFDS | Autopilot Flight Director System |
| AFDX | Avionics Full Duplex Network - Ethernet (see CDN) |
| AFE | Authorization For Expenditure |
| AFF | Aircraft Fire Fighting |
| AFF | Auto Flight Function |
| AFFF | Airport Fire Fighting Foam |
| AFH | Airplane Flying Handbook |
| AFHA | Aircraft Functional Hazard Analysis |
| AFI | Assistant Flying Instructor |
| AFID | Aviation Foreign Internal Defense |
| AFIS | Aerodrome Flight Information Service |
| AFM | Air/Fuel Mixture |
| AFM | Aircraft Flight Manual |
| AFMS | Aircraft Flight Manual Supplement |
| AFMS | Automated Fuel Management System |
| AFP | Advanced Fiber Placement |
| AFPAM | MEL Dispatch |
| AFR | Air Fuel Regulator |
| AFR | Air/Fuel Ratio |