| Acronym | Meaning |
 | CPI | Cross Pointer Indicator |
| BBC | Before Business Clearance |
| PVRD | Purge |
| EDV | Electronic Depressurizing Valve |
| EKG | Electrocardiogram (Record) |
| SE/FAC | Support Eq Uipm Ent/Facility |
| ST | Static |
| OSDH | Orbiter System Definition Handbook |
| FDA | Fault Detection And Annunciation |
| PCR | Payload Changeout Room |
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