| Acronym | Meaning |
| TF | Test Fixture |
| FUS/LF | Fuselage |
| HBT | Heflex Bio-Engineering Test |
| IAL | Immediate Action Letter |
| CNDS | Condensate |
| SMAB | Solid Motor Assembly Building |
| EVCS | Extravehicular Communications System |
| SI | International System Of Units (ISU Preferred) |
| MOC | Mission Operations Computer |
| ESOC | European Space Operations Center |