IL Nuke gets NRC Incident Report

Tuesday, March 6, 2018 @ 03:03 PM gHale

A degraded condition on a safety-related pump at the Clinton nuclear power plant has low to moderate safety significance, federal officials said.

The issue ended up identified during a Nuclear Regulatory Commission (NRC) inspection conducted June 15 – Dec. 28, last year.

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NRC inspectors determined the plant’s failure to identify a condition that could negatively impact the proper operation of a safety pump resulted in its failure. NRC inspectors verified the pump has been repaired.

Clinton, which is owned and operated by Exelon, has been under increased NRC oversight since the third quarter of 2017 due to a previous finding of low to moderate safety significance.

The finding involved the plant’s failure to evaluate the suitability of installing new electrical components on an emergency diesel generator room ventilation fan. The modification resulted in the diesel generator being inoperable for a period of time that exceeded requirements. NRC inspectors reviewed the plant’s actions to resolve the issue.

Clinton will remain under increased oversight until NRC inspectors conduct independent reviews to verify Exelon has fully understood the causes for both findings and has taken sufficient action to prevent recurrence.

The single-unit plant, operated by Exelon Nuclear Generation Co., is in Clinton, IL, 23 miles southeast of Bloomington, IL.

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