| Acronym | Meaning |
| MTTR | Mean TimetoRepair |
| MOD | Mission Objectives Document |
| OMC | Orbiter Maintenance And Checkout |
| W-G | Water-Glycol |
| GT | Greater Than |
| SAIL | Shuttle Avionics Integration Laboratory (JSC) |
| MSN | Mission |
| SD | Specification Document |
| MSVP | Master Shuttle Verification Plan |
| MAB | Mechanical Automation Breadboard |