| Acronym | Meaning |
 | PC | Plane Change |
| CWA | Controlled Work Area |
| DCS | Digital Command System (Subsystem) |
| OPBOV | Oxidizer Preburner Oxidizer Valve |
| MHZ | Megahertz (Megacycles Per Second) |
| HOSC | Huntsville Operations Support Center |
| CIS | Component Identification Sheet |
| RPTA | Rudder Pedal Transducer Assembly |
| OF | Oxidizer-to-Fuel Ratio |
| ILS | IntegratedLogistics System |
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