| Acronym | Meaning |
 | SAA | Safety Assurance Analysis |
| HETM | Hybrid Engineering Test Model |
| IDC | Integrated Displays And Controls |
| RSSPO | Resident Space Shuttle Project Office (Officer) |
| IOC | Initial Operational Capability |
| MX | Mmx Multiplex |
| INERTIAL | GuInertial Guidance |
| TSS | TPS Summary Sheet Control |
| RA | Radar Altimeter |
| VEL | Velocity |
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