| Acronym | Meaning |
 | FLG | Flange |
| OPA | Operations Planning Analysis |
| SMTAS | Shuttle Model Test And Analysis System |
| STADAN | Space Tracking And Data Acquisition Network |
| CRW | Control Read/Write |
| TA | Trunnion Angle |
| SD | Spare DisPosition |
| DRUC | Disposition Record Unsatisfactory Condition |
| PSM | Propellant Storage Module |
| BD | Binary Digit |
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