| Acronym | Meaning |
 | PRS | Personnel Rescue System |
| FRCS | Forward Reaction Control System |
| HLMT | Hel Met |
| LPD | Launch Procedure Document |
| CIR | Circle |
| COAS | Crew(man) Optical Alignment Sight |
| ORI | Operational Readiness Inspection |
| SGOS | Shuttle Ground Operations Simulation (Simulator) |
| CBA | C-Band Transponder Antenna |
| ELEC | Electronic |
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