| Acronym | Meaning |
 | HUD | Head-up Display |
| HYDROGEN | ReHydrogen Relief |
| KSC | John F. Kennedy Space Center |
| SDS | Shuttle Dynamic Simulation (Simulator) |
| UT | Unit Tester |
| POI | Propellant Quantity Indicator |
| CTP | Communications Timing Procedure |
| INTERCOMMUN | Intercommunications |
| CDDT | Countdown Demonstration Test |
| PFP | Programmable Function Panel |
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