| Acronym | Meaning |
| PKD | Programmable Keyboard And Display |
| TD | Touch Down |
| TEMP | Temperature |
| MSS | Maintenance Status System |
| VV | Vertical Velocity |
| MT | Magnetic Tape |
| PUV | Propellant Utilization Valve |
| CCN | Contract Change Negotiation |
| OLSA | Orbiter/LPS Signal Adapter |
| HCV | Hydrogen Check Valve |