| Acronym | Meaning |
 | ICR | Instruction Change Request |
| MDA | Maintainability Design Approach |
| PAPI | Precision Approach Path Indicator |
| CSE | Communications Systems Engineer |
| OAT | Operational Acceptance Test |
| CHX | Cabin Heat Exchanger |
| ECN | Engineering Change Notice |
| BMS | Background Measurement Satellite |
| SCIU | Spacecraft Interface Unit |
| STRUCT | Structure |
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