| Acronym | Meaning |
| RECP | Request For Engineering Change Proposal |
| CPSE | Common Payload SuPport EquiPment |
| SV | Safety Valve |
| TAC | Kennedy Space Center Landing Site |
| PIP | Project Implementation Plan |
| HRSI | High-temperature Reusable Surface Insulation |
| HE | Helium |
| BU | Backup |
| TDU | Time Display Unit |
| DVM | Digital Voltmeter |