| Acronym | Meaning |
 | ISIL | Interim Support Items List |
| QSGVT | Quarter Scale Ground Vibration Test |
| MSS | Mechanical Support Systems |
| FCE | Flight Control Equipment |
| PDI | Payload DePloyment And Retrieval System |
| CONSTR | Construct |
| IPS | IRInclination Of The Ascending Return |
| UDL | Updata Link |
| FMS | Food Management System (Subsystem) |
| S/S | Space Shuttle |
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