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Accident Description
Two contract employees were overcome and fatally injured by nitrogen as they performed maintenance work near a 24-inch opening on the top of a reactor. One of the workers died attempting rescue.
![Image](http://www.csb.gov/assets/1/16/NewsDimensionMain/Reactor1-top_manway_007.jpg)
Investigation Status
The CSB issue a case study report and a safety video based on this incident at a news conference in Newark, Delaware, on November 2, 2006.