| Acronym | Meaning |
| IED | Interacting Equipment Documents |
| OFS | OrbiterFunctionalSimulator |
| FSS | Flight Support Structure |
| I | LAS Instrument Landing Approach System |
| CWS | Caution And Warning System |
| MDS | Malfunction Detection System |
| TW | Tailwind |
| VRMS | Volts Root MeanSquare |
| PUSS | Pallet Utility Support Structure |
| TPSE | Thermal Protection Subsystem Experiments |