| Acronym | Meaning |
| ABHRS | As Built Hardware Reporting System |
| POPA | PaYload Ordnance Processing Area |
| ITS | Interim Teleprinter System |
| SORPTR | South Repeater |
| WTR | SYS Water System |
| SOCH | Spacelab Orbiter Common Hardware |
| TTC | Telemetry |
| TO | Operations Management (KSC Directorate) |
| MAIR | Manufacturing And Inspection Record |
| SESL | Space Environmental Simulation Laboratory |