| Acronym | Meaning |
 | CD | Candella (Luminous Intensity) |
| RGAR | Rate Gyro Assembly-Right SRB |
| TV | Thrust Vector |
| BU | Backup |
| SPEC | Specialist Function |
| TAL | Transatlantic Abort Landing |
| LO2 | Liquid Oxygen |
| MSS | Maintenance Status System |
| MDS | Master Development Schedule |
| RTSF | Real-Time Simulation Facility |
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