| Acronym | Meaning |
| RP | Relative Pressure |
| SIA | Software Impact Assessment |
| FRRID | Flight Readiness Review Item DisPosition |
| SPOM | STS Planning And Operations Management |
| HL | High Level |
| MIR | Malfunction Investigation Report |
| PED | Pedestal |
| MTO | Modification Task Outline |
| CAPS | Crew Altitude Protection System |
| RV | Recovery Vessel |