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Forwards LER 92-004-01 re entry into TS 3.0.3 due to containment isolation valves failing to closure.Rev incorporates results of root cause analysis performed on two containment isolation valves.

Accession Number: ML20035C240

Date Released: Tuesday, December 1, 2020

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• ML20035C239 - Forwards LER 92-004-01 re entry into TS 3.0.3 due to containment isolation valves failing to closure.Rev incorporates results of root cause analysis performed on two containment isolation valves. (2 page(s), 4/1/1993)
• ML20035C242 - LER 92-004-01:on 920428,plant shutdown commenced due to entry into TS 3.0.3.Caused by containment isolation valves failing to close.Temporary mod will be installed to bypass valves & allow sampling at upstream drain lines. (7 page(s), 4/1/1993)