| Acronym | Meaning |
| MTBM | Mean Time Between Maintenance |
| EAD | ElectricallY Alterable Device |
| PPS | Pneumatic Power Subsystem |
| SST | Subsystem Terminal On Spacelab |
| TE | Time Earliest/Expected |
| OT | Operational Test |
| MCDS | Multifunction CRT Display System |
| MDR | Mission Data Reduction |
| BP | C&DSCommand And Data Simulator |
| TVSSIS | TV Subsystem Interconnecting Station |