- A grubu çalışma ruhsatı
- AB initio training for ATCOs
- abeam
- ability tests
- Abort
- Abrasion
- Absolute accuracy
- Absolute coordinates
- Absorbed water
- Absorption
- Accelerate-stop distance available
- Accelerometer
- Acceptability
- Acceptable risk
- Acceptance tests
- Accepting unit
- Accident
- Accident prevention and flight safety programme
- Accuary