| Acronym | Meaning |
 | SEC | Sequential Events Controller |
| PFP | Prograin Financial Plan |
| IVAR | Internal Variable |
| DTP | Detail Test Plan |
| FOC | Focus |
| SPADS | Shuttle Problem Action Data System |
| QSA | Qualification Site Approval |
| CRO | Cathode Ray Oscillograph(s) Or Oscilloscopes |
| HPOT | High Pressure Oxidizer Turbopump |
| LTG | Lighting |
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