| Abbreviation | Definition |
|---|---|
| ACE | Aviation Camp Experience |
| ACE | Avión de Combate Europeo |
| ACFMS | Airframe Cumulative Fatigue Monitoring System |
| ACFT | Aircraft |
| ACG | Aviation Capital Group |
| ACIC | Airbus China Innovation Centre |
| ACIC | Aviation Charges Intelligence Center |
| AC-ID | Aircraft Identifier |
| ACIP | Aviation Career Incentive Pay |
| ACISS | Aircraft Cockpit Information And Safety System |
| ACLA | Aero Consult Light Aircraft |
| ACLC | Aviation Center Logistics Command |
| ACM | Accumulator Charging Manifold |
| ACM | Additional Crew Member |
| ACM | Air cycle machine |
| ACME | Air Craft Marine Engineering |
| ACMF | Airplane condition monitoring function |
| ACMI | Aircraft Crew Maintenance and Insurance |
| ACMI | Aircraft Crew Maintenance Insurance |
| ACMP | Alternating Current Motor Pump |