| Acronym | Meaning |
| CMM | Condition Monitored Maintenance |
| SOW | Sox Supercritical Oxygen |
| DCS | Digital Command System (Subsystem) |
| SOMS | Shuttle Orbiter Medical System |
| PCA | Power Controller Assembly |
| IPS | IRInclination Of The Ascending Return |
| PEFO | Payload Effects Follow-on Study |
| SS | System Specification |
| DOP | Diver Operated Plug |
| PAR | Precision Approach Radar |