| Acronym | Meaning |
 | USAF | United States Air Force |
| SOPC | Shuttle Operations And Planning Center |
| LUCS | Instrumentation Update Command SYstem |
| DL | Electronics Engineering (KSC DE Dir.) |
| TD | Touch Down |
| SDPC | Shuttle Data Processing Complex |
| NSW | NSP Status Word |
| DP | Differential Pressure |
| NO | Normally Open |
| IBM | International Business Machines |
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