| Acronym | Meaning |
 | CRD | Change Request Disposition |
| GDSO | Ground Data Systems Officer |
| WW | Water Waste |
| MRL | Manipulator Retention Latch |
| GSIU | Ground Standard Interface Unit |
| BOS | Bright Object Sensor |
| MTEM | Maintenance Test Equipment Module |
| CC | Channel Controller |
| EXT | External |
| GCILU | Ground Control Interface Logic Unit |
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