| Acronym | Meaning |
| DCR | Document Change Record (or Review) |
| GCDC | Ground Checkout Display And Control |
| NWW | Nose Wheel Well |
| FOPG | Flight Operations Planning Group |
| IMU | Inertial Measurement Unit |
| GDSM | Ground Data Systems Manager |
| REI | Range From Entry Interface (400 K) |
| R | Radius |
| INSTRUMENTA | Instrumentation And Communication |
| H | /'EHeat Exchanger |