| Acronym | Meaning |
 | PCOT | Payload Center Operations Team |
| CL | Closed Loop |
| U-SB | Unified S-Band |
| PM | Phase Modulation |
| NARS | National Archives And Record Services |
| HPOTP | High Pressure Oxidizer Turbopump |
| SPC | Shuttle Processing Contractor |
| INSTRUMENT/ | Instrument/Communication EquiPment |
| OMSF | Office Of Manned Space Flight (now OSTS) |
| HYDROGEN | ReHydrogen Relief |
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