| Acronym | Meaning |
| MOT | Motor |
| PAD | Preliminary Advisory Data (Crew Data Uplink) |
| OMCF | Operations And Maintenance Control File |
| PCCN | Provisioning Contract Control Number |
| FCP | Fuel Cell Power (Plant) |
| LCD | LaunchCountdown |
| MPTA | Main Propulsion Test Article |
| SD | Space Division (AFSC) |
| DRF | Data RequestForm |
| SSM | ESpace Shuttle Main Engine |