| Acronym | Meaning |
 | EHS | Environmental Health Services |
| STM | Static Test Model |
| UDS | Universal Documentation System |
| OG | Oxygen Gage |
| FSCP | Fire Sensor Control Panel |
| EQL | Equal |
| LSR | Launch Site Recovery |
| OSOP | Orbiter Systems Operating Procedures |
| RCA | Radio Corporation Of America (SATCOM) |
| FSGS | Flare/Shallow Glide Slope |
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