| 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 |