| Acronym | Meaning |
 | TCTI | Time Compliance Technical Instruction |
| NRL | Naval Research Laboratory |
| SM | SYstems Management |
| LHC | Left Hand Circular |
| SDR | Space Division Regulation |
| CACB | Center Aisle Connector Bracket |
| MDAC | McDonnell Douglas Astronautics Company |
| ESB | Essential Switching Box |
| LACB | Landing Aids Control Building (SLF At KSC) |
| PSA | Payload Support Avionics |
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