| Acronym | Meaning |
| FSRR | Flight Software Readiness Review |
| LS/ST | Light Shield/Star Tracker |
| OMR | Orbiter Management Review |
| LMS | Inventory Management System |
| POM | Pallet-Only Mode |
| IFRU | In-Flight Replacement Unit |
| HTG | Heating |
| PL | Payload (P/L Preferred) |
| LE | LauLeading Edge |
| OMEWG | Orbiter Maintenance Engineering Working Group |