| Acronym | Meaning |
| OEM | Original Equipment Manufacturer |
| SEADS | Shuttle EntrY Air Data System (Subsystem) |
| UCTA | Urine Collection Transfer Assembly |
| N/C | Not Critical |
| TPAD | Trunnion Pin Attachment Device |
| RAC | ReliabilitY Action Center |
| UMBC | Umbilical Cord Cable |
| EQE | Event Queue Element |
| SAM | SYstem Activation And Monitoring |
| IHTV | Interim Hypersonics Test Vehicle |