| Acronym | Meaning |
| WTT | Watch Team Trainer |
| HWCI | Hardware Configuration Item |
| FAR | Federal Acquisition Regulation |
| HCP | Hardness Critical Process |
| LOIL | Oil Level |
| PRGB | Proprotor Gearbox |
| SSPP | System Safety Program Plan |
| DDM | Diagnostic Diagrams |
| MOS | Marine Occupational Standard |
| TMCR | Technical Manual Contract Requirement |