| Acronym | Meaning |
| OECO | Outboard Engine CLjtoff |
| SPR | Subcontractor Performance Review |
| IDC | InterfaceDocumentControl |
| EPC | External Power Contractor |
| DCSU | Digital Computer Switching Unit |
| MRF | Measurements/Stimuli Request Form |
| IOF | Initial Operational Flight |
| TIG | Time Of Ignition |
| SOL | Solar |
| SSPP | SYstem Safety Program Plan |