| Acronym | Meaning |
 | R&DO | Research And Development Operations (MSFC) |
| FA | Flight Aft |
| BP | Back Pressure |
| QVVT | Qualified Verification Vibration Testing |
| NAR | Numerical Analysis Research |
| PGRWG | Payload Ground Requirements Working Group |
| SSFS | Space Shuttle Functional Simulator |
| PCIN | Program Change Identification Number |
| UP | Upper |
| TFC | Time From Cutoff |
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