| Acronym | Meaning |
 | SCA | Shuttle Carrier Aircraft |
 | PDS | Package Data System |
 | SLC | ERNO SPacelab Project Control |
 | F/C | Fit Check |
 | GTCU | Ground Thermal Conditioning Unit |
 | UCTA | Urine Collection Transfer Assembly |
 | WTSC | Wet Tantalum Slug Capacitor |
 | LOS | Line Of Sight |
 | SEM | Scanning Electron Microscope |
 | PCO | Postcheckout |