| Acronym | Meaning |
| STA | RScientific And Technical Report |
| HFTS | Horizontal Flight Test Simulator |
| ISTF | Integrated System Test Flow |
| ERNO | Germany (SPacelab Contractor) |
| FTE | Factory Test EquiPment |
| EXCH | Exchange |
| GLC | Generator Line Contractor |
| B/O | Breakout |
| LAGS | Launch Abort Guide Simulation |
| MTD | Mounted |