| Acronym | Meaning |
| PIC | Payload Integration Center |
| S | Sta R |
| HETM | Hybrid Engineering Test Model |
| OFDS | Oxygen Fluid Distribution System |
| EPMS | Engineering Performance Management System |
| IGAX | Inner Gimbal Axis |
| MPSR | Multipurpose Support Room |
| MMCL | Master Measurement And Control List |
| FUB | Forward Utility Bridge |
| SEUL | Support Equipment Utilization List |