| Acronym | Meaning |
| PCP | Power Control Panel |
| ALERT | Acute Launch Emergency Reliability Tip |
| OFI | Operational Flight Instrumentation |
| MACO | Major Assembly Checkout |
| D | LSC DLTRData Link Terminal Repeater |
| HEX | Hexagon |
| V/V | Validation And Verification (also V&V) |
| PKD | Programmable Keyboard And Display |
| PCU | Process Control Unit |
| MFR | Maximum Flight Rate |