| Acronym | Meaning |
 | REM | Roentgen Equivalent In Man |
| FID | Flight Implementation Directive |
| FS | Fail To Sync |
| RD/SB | Rudder Speed Brake |
| OBS | Operational Bioinstrumentation System |
| RCA | Radio Corporation Of America (SATCOM) |
| DD&CS | Dedicated Display And Control Subsystem |
| N/A | Next Assembly |
| FPBOV | Fuel Preburner And Oxidizer Valve |
| FCO | Functional Checkout |
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