| Acronym | Meaning |
| PPBIT | Pre-periodic Built-in Test |
| FSR | Field Service Representative |
| FLEETEX | Fleet Exercise |
| MCAS(H) | Marine Corps Air Station (helicopter) |
| EOS | Emergency Oil System |
| MAC | Maintenance Action Code |
| NR | Submersible Research Vehicle (misc) |
| GCC | Generic Command Center |
| FCSIR | Flight Control System Integration Rig |
| VADS | Verdix Ada Development System |