| Acronym | Meaning |
 | PPF | Payload Processing Facility (USAF) |
| SSP | Space Shuttle Program |
| PMIS | Personnel Management Information System |
| BTR | Boom Time Remai-ni'ng |
| USB | Upper Side Band |
| DOC | Document |
| BCFS | Backup Flight Control System |
| TRCP | Tape Recorder Control Panel (LIO) |
| BAC | Booster Assembly Contractor |
| TTL | Transistor-Transistor Logic |
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