| Acronym | Meaning |
 | SPI | Surface Position Indicator |
| CMPTD | Computed |
| RFE | Request For Estimate |
| VOR-DME | VHF Omni Range-UHF Distance Measuring Equipment |
| MMS | Mission Modular Spacecraft |
| ONBT | Orbiter Neutral Buoyancy Trainer |
| PSA | Power Servo Am Pl If Ier |
| FDIIR | FaLilt Detection |
| PRM | Payload Retention Mechanism |
| SAB | Storage And Assembly Building |
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