| Acronym | Meaning |
 | PASS | Primary Avionics Software System |
| KB | Keyboard |
| PFC | Postflight Checklist |
| I | LAS Instrument Landing Approach System |
| AFE | American Flight Echocardiograph |
| GSS | Ground Support System |
| VIS | Visual |
| PBPS | Post-Boost Propulsion System(s) |
| RF-TK | Radio Frequency Tracking |
| GCIL | Ground Control Interface Logic |
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