| Acronym | Meaning |
| FDIIR | Recompensation |
| FIAR | Failure Investigation Action Report |
| MC | Mission Completion/Continuation |
| URT | Upright |
| SCRSY | Serialized Control And Record SYstem |
| MPC | Memory Protection Check |
| CCS | Command And Communication System |
| I | DAC Integrated Digital-Analog Converter |
| RCR | Retrofit Configuration Record |
| M/R | Mixture Ratio (Fuel To Oxidizer) |