| Acronym | Meaning |
 | ERU | Earth Rate Unit |
| KATS | Kennedy Avionics Test Set |
| HPU | Hydraulic Power Unit |
| MPB | Maintenance Parts Breakdown |
| SOC | SYstem OPtion Controller |
| DRA | Data Release Authorization |
| SLP | ERNO Spacelab Program Office |
| MCF | Mission Control Facility |
| VORTAC | VHF Omni Range Tactical Air Navigation |
| NIA | NNIA NOVA Interface Adapter |
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