| Acronym | Meaning |
 | R | LEO Request Liaison Engineering Order |
| CSE | Communications Systems Engineer |
| BM | Business (Branch) Manager |
| CRN | Cable Routing Rotation |
| OG | Outer Gimbal (Roll) |
| SSITP | Shuttle System Integrated Test Plan |
| MEIG | Main Engine Ignition |
| OSLM | Operations ShOP/Lab Manager |
| RAI | Radar Altimeter Indicator |
| MACH | Machine |
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