| Acronym | Meaning |
| FEAT | Final Engineering Acceptance Test |
| RLF | Relief |
| QUAL | Qualification |
| LB | Low Bay |
| CWS | Caution And Warning Status |
| SAB | Shuttle Avionics Breadboard |
| PC | Pitch Control |
| CAP | Computer Application Program |
| SDM | SYstem Definition Manual |
| GNC | GuGNCGuidance And Navigation COmPuter |