| Acronym | Meaning |
| SHDN | Shutdown |
| UER | Unique Equipment Register |
| FUB | Forward Utility Bridge |
| DAC | Digital To AnalYtical Conversion |
| PCR | Power Change Request |
| OIV | Oxidizer Isolation Valve |
| SUMS | Shuttle Upper-Atmosphere Mass Spectrometer |
| TCMD | Transportation Control And Movement Document |
| HCED | Hand Controller Engage Driver |
| COAS | Course Optical Alignment Sight |