| Acronym | Meaning |
 | RSSPO | Resident Space Shuttle Project Office (Officer) |
| SPKB | SpeedBrake |
| VDD | Version Description Document |
| TV | Thermal Vacuum |
| EPMS | Engineering Performance Management System |
| TD | Technical Directive |
| BFCS | Backup Flight Control System |
| MER | Meridian |
| SV | Safety Valve |
| MEAR | Maintenance Engineering Analysis Request |
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