The U.S. Nuclear Regulatory Commission (NRC) issued a white finding to the River Bend nuclear power plant in Louisiana.
River Bend was operating at 85 percent capacity on Christmas 2014 when the plant automatically shut down. After the shutdown, there were issues with the plant’s feedwater system, and several electrical circuit breakers also failed to operate properly. Operators took compensatory actions to ensure the plant would remain in safe shutdown.
NRC said Entergy officials failed to ensure that a control room simulator used to train reactor operators was capable of reproducing all of the challenges the operators might encounter during a specific unplanned reactor shutdown scenario, an NRC official said in a statement. As a result, operators took actions that complicated the plant’s response.
NRC conducted a special inspection to better understand the circumstances surrounding the event and review corrective actions. NRC determined the finding as a white, or one of low to moderate safety significance. Officials with plant operator Entergy (NYSE: ETR) agreed with the finding.
"The identified issues have been corrected to ensure that conditions in the simulator accurately reflect conditions in the plant, and River Bend Station remains safe and secure," Entergy said in a statement. "Entergy did not request a regulatory conference and will not contest the finding. This will not impact the plant’s regulatory status in relation to the NRC’s Action Matrix."
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