| Acronym | Meaning |
 | LDEC | Lunar Docking Events Controller |
| ESS | Equipment Support Section |
| ETD | Electrical Terminal Distributor |
| DCC | Display COMPuter Control Unit |
| BFS | Backup Flight System |
| SCGSS | Super Critical Gas Storage System |
| SFO | Space Flight Operations |
| IVSI | Instantaneous Vertical Speed Indicator |
| MCN | Master Change Notice |
| IUS | Interim Use Sheet |
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