| Acronym | Meaning |
| CPA | Contingency Planning Aid |
| DFCS | Digital Flight Control Software (System) |
| PAE | Preventive Action Engineer |
| IAL | International Algebraic Language |
| DRT | Design Reference Timeline |
| PSID | Pounds Per Square Inch Differential |
| L/D | Lift-to-Drag (Ratio) |
| LNG | Liquefied Natural Gas |
| MRS | Management Review System |
| SATS | Shuttle Avionics Test System |