| Acronym | Meaning |
| MASS | Model 901 Applications And System Software |
| TRK UP | Track Up |
| MAOT | Maximum Allowable Operating Time |
| CAOE | Contractor Acquired Operational Equipment |
| OSI | Open Systems Interconnection (iso Standard) |
| ILS | Instrument Landing System |
| CINCLANTFLT | Commander-in-chief (atlantic Fleet) |
| NR | Proprotor Speed (rpm) |
| ALRT | Alert |
| COMPT | Compressor |