| Acronym | Meaning |
 | TP | True Position |
| IOCU | Input/Output Control Unit |
| HFC | Hydraulic Flight Control |
| MSAD | Materials Summary Acceptance Document |
| TASPR | TATTechnical Acceptance Team |
| SEADS | Shuttle EntrY Air Data System (Subsystem) |
| UPS | Uninterruptible Power System |
| EQ | Equivalent |
| SPN | Shuttle Project Notice (KSC) |
| MT | Magnetic Tape |
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