| Acronym | Meaning |
| EGA | Evolved Gas Analysis |
| HVPS | High Voltage Power Supply |
| SRU | Shop Replacement Unit |
| DAFT | Data Acquisition Frequency Table |
| FDIR | Fault Detection Identification/Isolation And |
| SLSA | Shuttle Logistics Support Aircraft |
| BATT | Battery |
| ONBD | Onboard |
| FQI | Flight Qualification Instrumentation |
| CTA | Controlled ThrustAssembly |