| Acronym | Meaning |
 | MFC | Multiple Flight Controller |
| PDV | Pressure Disconnect Valve |
| PSSU | Patch Survey And Switching Unit |
| IED | Interacting Equipment Documents |
| KSSS | KSC Station Set Specification |
| OTP | Operations Test Plan |
| SPS | Shuttle Procedures Simulator |
| MTA | Maintenance Task Analysis |
| DODD | Department Of Defense Directive |
| LOFAR | Low Frequency Acquisition And Ranging |
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