| Acronym | Meaning |
 | MPVA | Main Propellant Valve Actuator |
| MTEM | Mechanical Maintenance Test Equipment |
| GSFC | Goddard Space Flight Center |
| TSCO | Test Support Coordination Office |
| IOF | Initial Operational Flight |
| KU | Keyboard Unit |
| LAGS | Launch Abort Guide Simulation |
| PMI | Preventive Maintenance Inspection |
| EXTGH | Extinguish |
| PDH | Pocket Dosimeter-High |
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