| Acronym | Meaning |
 | ECA | Electronics Control Assembly |
| QEC | Quick Engine Change |
| PTC | Portable Temperature Controller |
| PMP | Parts |
| ECN | Engineering Change Notice |
| DDI | Dedicated Display Indicator |
| CCS | Computer Core Segment |
| PDL | Procedure Distribution List |
| ESRIN | European Space Research Institute |
| S/A | Safe And Arm |
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