| Acronym | Meaning |
 | GCC | Ground Communications Coordinator |
| LSS | Life Support Subsystem |
| LSC | Linear Shaped Charge |
| ITRDS | Integrated Test Requirements Documents |
| PA | Pad Abort |
| IITCS | Igloo Internal Thermal Control Section |
| GBS | Ground Based Software |
| MCDS | Maintenance Control And Display System |
| TRD | Test Requirements Document |
| CCM | E Contract Change Mass Estimate |
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