| Acronym | Meaning |
| WBSC | Wide-band Signal Conditioner |
| KUSP | Ku-Band Signal Processor |
| MSC | Manned Spacecraft Center (changed To JSC) |
| MAINT | Maintenance |
| PMC | Payload Monitoring And Control |
| CMPRT | Compartment |
| LAIU | Launch Abort Interface Unit |
| MELI | Minimum Equipment List Index |
| OM | Orbiter Main Engine |
| SAM | SAMSShuttle Attachment ManiPulator SYstem |