| Acronym | Meaning |
 | KATS | Kennedy Avionics Test Set |
| PTCS | Passive Thermal Control Section |
| SES | Shuttle Engineering Simulation |
| EVM | Earth Viewing Module |
| EL | End Item |
| MU | Master Unit |
| SPADS | Shuttle Problem Action Data System |
| MT | Mount |
| INV | Inverter |
| NFSP | NNFSPNonflight Switch Panel |
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