| Acronym | Meaning |
 | ISL | Inertial Systems Laboratory |
| EXP | Expand |
| MTTA | Mean Time To Accomplish |
| MTD | Mounted |
| ESTA | Escape System Test Article |
| CTIS | Crawler Transporter Intercom System |
| JPIC | Joint Program Integration Committee |
| SEPAP | Shuttle Electrical Power Analysis Program |
| ETA | Environmental Test Article |
| ESV | Emergency Shutoff Valve |
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