| Acronym | Meaning |
| DE | Design Engineering (KSC Dir.) |
| GR | Ground R@le |
| OIV | Oxidizer Isolation Valve |
| MTEM | Mechanical Maintenance Test Equipment |
| SVB | Space Vehicle Booster |
| MCW | Modulated Continuous Wave |
| RGAL | Rate Gyro Assembly-Left SRB |
| STD | Shuttle Test Director |
| SLF | Shuttle Landing Facility (KSC) |
| TCS | Thermal Control System (Subsystem) |