| Acronym | Meaning |
| SPADS | Shuttle Problem Analysis Data System |
| LL | Low Level |
| EPDU | Electrical Power Distribution Unit |
| SEAPG | Support Equipment Acquisition Planning Group |
| ESOC | European Space Operations Center |
| TWR | Tower |
| EUROCOMSATE | European Consortium Communications Satellite |
| ML | PED Mobile Launcher Pedestal |
| WCCU | Wireless Crew Communication Unit |
| RDP | Receiver And Data Processor |