| Acronym | Meaning |
 | SCA | Schedule Change Authorization |
| PNP | Prenegotiation Position |
| MWG | MMWG Maintenance Analyzer Working Group |
| SM | IASerial Multiplexer Interface Adapter |
| HGVT | Horizontal Ground Vibration Test |
| SDPC | Shuttle Data Processing Complex |
| PTM | Pulse Time Modulation |
| FS | Federal Specification |
| CRYO | Cryogenic |
| OTLC | Orbiter Timeline Constraints |
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