| Acronym | Meaning |
| GEOD | Geodetic |
| D/A | Digital To Analog |
| RM | Rescue Module |
| EL | MECH Electromechanical |
| FDS | Flight Design System |
| CRIS | Calibration Recall And Information System |
| PM | PMADPerformance Monitor Annunciation Driver |
| DRF | DocumentationRequisitionForm |
| D | LSC Data Link Transmission Repeater |
| GOMMS | GrGOMMSGround Operations And Material Management System |