| Acronym | Meaning |
| IPS | Inertial Reference Integrating Gyro |
| FL | Fail |
| MSV | Monitored Sine Vibration (Test) |
| GUIDO | Guidance Officer |
| EPRN | Emergency Program Release Notice |
| REFRIG | Refrigerate |
| SP-PAI | Project Assessment And Integration Staff (KSC) |
| PEG | Powered Explicit Guidance |
| RFC | Request For Change Revolution |
| GSCU | Ground Service Cooling Unit |