| Acronym | Meaning |
 | FSS | Flight Support System |
| HW | Ha Rd Wa Re |
| HGR | Hangar |
| FTO | Functional Test Objective |
| IPS | IRME Initiator Resistance Measuring Equipment |
| ECOS | Experiment Computer Operating System |
| RNG | Range |
| PCR | Payload Changeout Room |
| OMDRI | Operations And Maintainability Data Record |
| FCIT | First Computer Interface Tester |
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