| Acronym | Meaning |
| MAD | Maintenance Analysis Data |
| SFD | Crossfeed |
| FCA | Forward Controller Assembly |
| SSUSP | Spinning Solid Upper Stage Project |
| LOS | InstruCtor Operator Station |
| D | Down |
| CAUT | Caution |
| SSDS | Space Station Data System |
| PRB | Project Review Board |
| GLC | Generator Line Contractor |