| Acronym | Meaning |
| FRSI | Felt Reusable Surface Insulation |
| MSE | Maintenance Support Equipment |
| DDI | Dedicated Display Indicator |
| RIT | Request For Interface Tool |
| LM | Left Mid |
| CVDA | Converter |
| LPOTP | Low Pressure Oxidizer Turbopump |
| PRCB | ProgramReview Control Board |
| GECALL | GCOS Program Element Name |
| PETS | Payload Environmental Transportation System |