| Acronym | Meaning |
 | BP | C-BDC-Band |
| TDM | Time-Division Multiplexing (Multiplexer) |
| LMK | Landmark |
| W&C | Wire And Cable |
| VASI | Visual Approach Slope Indicator |
| SOCS | Subsystem Operation And Checkout System |
| COS | Carry-on Oxygen System |
| CTP | Communications Timing Procedure |
| MRD | Material Review Disposition |
| SEO | Special Engineering Order |
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