| Acronym | Meaning |
| SYST | System |
| XDCR | Transducer |
| FU | Fuse |
| URT | Universal Remote Terminal |
| S/V | Survivability/vulnerability |
| SAS | Stability Augmentation System |
| VLC | Very Low Clearance |
| IMRR | Inspection Maintenance And Repair Record |
| ROCD | Reuse Operational Concept Document |
| PSO | Pressure Shut Off |