| Acronym | Meaning |
| EPROM | Erasable Programmable Read Only Memory |
| PIO | Pilot-Induced Oscillation |
| TRA | Training Requirei-nents Analysis |
| CA | Contingency Abort |
| SSI | Significant Structural Item |
| V | Voice |
| PCC | Pad Control Center |
| SSSS | Space Shuttle System Specification |
| ETA | Estimated Time To Acquisition |
| PMIR | Program Manager's Integration Review |