| Acronym | Meaning |
 | MU | Mockup |
| PBI | Push Button Indicator |
| RAM | Random-access Memory |
| PCIL | Pilot-Controlled Instrument Landing |
| CCR | Contractor Change Request |
| SCRSY | Serialized Control And Record SYstem |
| OAA | Orbiter Access Arm |
| R-T | Resistance Test |
| PSM | Propellant Storage Module |
| OLSP | Orbiter Logistics Support Plan |
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