| Acronym | Meaning |
 | OST | Orbiter SuPport Trolley |
| SDR | Software Design Requirements |
| SCF | Sequenced Compatibility Firing |
| MCS | Maintenance And Checkout Station |
| LEB | Lower Equipment Bay |
| EAC | Estimate At Completion |
| M | LGS Microwave Landing Guidance System |
| SAEF | Spacecraft Assembly And Encapsulation Facility (KSC) |
| FPHB | Flight Procedures Handbook |
| DTS | Data Transmission System |
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