| Acronym | Meaning |
 | SPA | S-Band Power Amplifier |
| SOP | Secondary Oxygen Pack |
| PPB | Program Performance Baseline |
| HMC | Hypergolic Maintenance And Checkout |
| CFD | Converter |
| GPUR | GOAL Test Procedure Update Request |
| O&C | Operations And Checkout |
| SSPGSE | Space Shuttle Program Ground Support Equipment |
| EVAL | Earth Viewing Applications Laboratory |
| FL | Flowline |
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