| Acronym | Meaning |
 | SPN | Shuttle Project Notice (KSC) |
| OSF | Office Of Space Flight (now OSTS) |
| TWTA | Traveling Wave Tube Amplifier |
| TCN | Test Change Notice |
| MEAR | Maintenance Engineering Analysis Request |
| PUCS | Propellant Utilization Control System |
| LB | Launch Bus |
| SOL | Squelch |
| RIF | Relative Importance Factor |
| LARC | Langley Research Center (Hampton |
Browse by Letter:
