| Acronym | Meaning |
 | OPOV | Oxidizer Preburner Oxidizer Valve |
| MRL | Manipulator Retention Latch |
| FCP | Fuel Cell Power (Plant) |
| CACB | Center Aisle Connector Bracket |
| M/R | Mixture Ratio (Fuel To Oxidizer) |
| LESS | Leading Edge Structure Subsystem |
| EQUIP | Equipment |
| RDD | Requirements Definition Document |
| SORPTR | South Repeater |
| PERF | Perform |
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