| Acronym | Meaning |
| ONBT | Orbiter Neutral Buoyancy Trainer |
| SFOP | Safety Operating Procedure (KSC) |
| DMIA | Dual Multiplexer Interface Adapter |
| IDR | IntermediateDesignReview |
| FRD | Flight Requirements Document |
| DA | DeploymentAssembly |
| MDF | Mild Detonating Fuse |
| SEADS | Shuttle Entry Air Data System |
| BDA | Blast Danger Area |
| MCC | Mission Control Center (JSC) |