| Acronym | Meaning |
| MTBMA | Mean Time Between Maintenance Action |
| USAF | United States Air Force |
| GPO | Government Printing Office |
| HGR | Hanger |
| SRA | Shop Repairable Assembly |
| APSE | Ada Program Support Environment |
| FARECONRON | Fleet Air Reconnaissance Squadron |
| HBS | Hardware Breakdown Structure |
| RTR | Receiver-transmitter |
| PSIC | Provisioning System Identifier Code |