| Acronym | Meaning |
| PCL | Programming Check List |
| SRCH | Search |
| MTEO | Optical Maintenance Test Equipment |
| Q | Alpha Pitch Dynamic Pressure |
| TCF | Tank Checkout Facility |
| MFR | Manipulator Foot Restraint |
| STS | Structural Transition Section |
| ECI | Earth Centered Inertia (inertials) |
| SIS | Software Integrated Schedule |
| RCHCS | Regenerable CO And Humidity Contro SYstem |