| Acronym | Meaning |
| SSC | L Shuttle System Commonality List |
| PCA | Pneumatic Control Assembly |
| CIB | Change Implementation Board |
| RAM | Radar Absorption Material |
| OOS | Orbit-to-Orbit Stage |
| MBC | Maximum Breathing Capacity |
| FNT | Failure Notification Telex |
| OHA | Operational Hazard Analysis |
| D&C | Displays And Controls |
| CCRF | Consolidated Communication Recording Facility |