| Acronym | Meaning |
 | OIVS | Orbiter Interface Verification Set |
| FTO | Functional Test Objective |
| LARSSYAA | For Aircraft Analysis |
| DYN | Dynamic |
| LESS | Leading Edge Structure Subsystem |
| FEB | Forward Equipment Bay |
| OLDR | Quick Look Data Reference |
| S&A | Science And Application |
| ACRC | Assured Crew Return Capability - Now ACRV |
| OMMH | Orbiter Maintenance Man-Hours |
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