| Acronym | Meaning |
 | NDTF | Nondestructive Test Facility |
| RADAR | Radio Detecting And Ranging |
| SSD | System Summary Display |
| LVDC | Launch Vehicle Digital Computer |
| EXT | Experiment Terminal (Operator Console On Spacelab) |
| GPI | Ground Position Indicator |
| PYRO | Pyrotechnics |
| GLAADS | Gun Low Altitude Air Defense System |
| TTC | Tunnel Thermal Control |
| GAO | General Accounting Office |
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