| Acronym | Meaning |
 | B/U | Backup |
| PORCN | Production Oi-der Records Change Notice |
| CIS | Component Identification Sheet |
| TP | Training Plan |
| EL | MECH Electromechanical |
| RHU | Radioisotope Heater Unit |
| LPD | Launch Procedure Document |
| IOE | Input/Output Error Log Table |
| CAB | Cabin |
| GETI | Ground Elapsed Time Of Ignition |
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