| Acronym | Meaning |
 | OMRSD | Operational Maintainability Reporting Systems Document |
| NAVSAT | Navigation Satellite |
| PIRN | Preliminary Interface Revision Notice |
| STA | Shuttle Training Aircraft |
| ORR | Operational Readiness Review |
| OTA | Optical Telescope Assembly |
| FSU | Freon Servicing Unit |
| JPIC | Joint Program Integration Committee |
| E | LACS Extended Life Attitude Control System |
| RCVY | Recovery |
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