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Forwards LER 99-003-00 re inoperability of CCWS non-critical loop isolation valves due to previously unrecognized instrument air configuration anomaly.Single rept for Unit 2 is being submitted IAW NUREG-1022,rev 1.

Accession Number: ML20204F119

Date Released: Wednesday, August 5, 2020

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• ML20204F115 - Forwards LER 99-003-00 re inoperability of CCWS non-critical loop isolation valves due to previously unrecognized instrument air configuration anomaly.Single rept for Unit 2 is being submitted IAW NUREG-1022,rev 1. (1 page(s), 3/12/1999)
• ML20204F121 - LER 99-003-00:on 990210,discovered that CCWS non-critical loop isolation valves were inoperable.Caused by previously unrecognized instrument air configuration anomaly.Design modifications were implemented on both units. (8 page(s), 3/12/1999)