| Acronym | Meaning |
| PAR | Problem Action Request |
| FCR | Flight Control Room |
| SLS | Statement Level Simulator |
| RMSVP | Remote ManiPulator SubsYstem Verification Plan |
| GETIL | Ground Elapsed Time Of Landing (for TIG Of |
| RGP | Rate Gyro Package |
| ETLOW | External Tank Lift-Off Weight |
| ECD | Engineering Control Drawing |
| EC | Element Contractor |
| DDI | Dedicated Display Indicator |