| Acronym | Meaning |
| PT | Pitch Trim |
| PPS | Printer/Plotter System |
| REND | Rendezvous |
| S/EOS | Standard Earth Observation Satellite |
| DRUC | Disposition Record Unsatisfactory Condition |
| PASS | Planning And Scheduling System |
| SEPAP | Shuttle Electrical Power Analysis Program |
| VOM | Voltohmmeter |
| MEIU | Main Engine Interface Unit |
| COM-M | Common Mode |