| Acronym | Meaning |
 | PTO | Participating Test Organizations |
| GOR | GrGORGround Operations Review |
| DD | Directives Documentation |
| FCR | Flight Control Room |
| SPAS | Shuttle Pallet Satellite (German) |
| ICIO | Interim Cargo Integration Operations |
| LRU | Line Replaceable Unit |
| MTO | Mission |
| G | F&PGases |
| SEB | SYstems Engineering Branch |
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