| Acronym | Meaning |
 | LPR | Line Printer |
| FCH | Flight Controllers Handbook |
| GN2 | Gaseous Nitrogen |
| ECA | Engineering Change Analysis |
| SSIP | Systems Software Interface Processing |
| SHRD | Shroud |
| MCC | Motor Control Center (JSC) |
| TRA | Training Requirei-nents Analysis |
| GCCO | Ground Control Checkout |
| OBCO | Onboard Checkout (Instrumentation) |
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