| Acronym | Meaning |
 | GOC | GrGOCGround Operations Coordinator |
| SIRR | Software Integration Readiness Review |
| H | EPAHigh Efficiency Particle Air (Filter) |
| OFS | OrbiterFunctionalSimulator |
| I | ECO Inboard Engine Cutoff |
| D&O | DescriPtion And Operations |
| CUC | ComPuter Usage Control |
| SEACF | Support Equipment Assembly And Checkout Facility |
| MAB | Materials Applications Board |
| MMH | Monomethyl Hydrazine |
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