| Acronym | Meaning |
![](file.png) | SRN | Software Release Notice |
![](file.png) | MAF | Michoud Assembly Facility |
![](file.png) | SPADS | Shuttle Problem Analysis Data System |
![](file.png) | FCH | Flight Controllers Handbook |
![](file.png) | H | LTLHigh Level Test Language |
![](file.png) | TAO | Trans-Atlantic Abort |
![](file.png) | DDDU | Digital Decoder Driver Unit |
![](file.png) | EOW | Energy Over Weight |
![](file.png) | RBE | Radiation Biological Effectiveness |
![](file.png) | SC | Surface Command |