| Acronym | Meaning |
| EHOT | External Hydrogen/Oxygen Tank |
| GIA | GPC Interface Adapter |
| RPA | Request For Procurement Action (Authorization) |
| RAM | Random Access Memory |
| WBSC | Wide-Band Signal Conditioner |
| FOSP | Flight Operations Support Personnel |
| OFTDS | Orbital Flight Test Data System |
| EOT | End Of Tape |
| OMR | Operations Management Room |
| CPCR | Crew Procedures Change Request (Form 482) |