| Acronym | Meaning |
| HTS | Heat Transport Section |
| SIMS | Shuttle Imaging Microwave System |
| GACU | Ground Air Conditioning Unit |
| HRSI | High Temperature Reusable Surface Insulation |
| MAP | Mission Application Program |
| RIC | Rockwell International Corporation |
| RT | Rate |
| ETI | Elapsed Time Indicator |
| MCL | Mass Change Log |
| PDL | Procedure Distribution List |