| Acronym | Meaning |
| SPR | Software Problem Report |
| EADI | Electronic Attitude Director Indicator |
| DCR | Design Certification Review |
| PCCP | Preliminary Contract Change ProPosal |
| IOQE | Input/Output C)ueue Element |
| GTA | Gas Tungsten Arc |
| MTK | Mechanical Time Keeping |
| ICAO | International Civil Aviation Organization |
| PBDF | Payload Bay Door FWD |
| MIMOSA | Mission Modes And Space Analysis |