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Forwards LERs 98-020-00 & 98-021-00 re two separate occurrences of one train of ECW sys being inoperable.Repts for Unit 2 are being submitted IAW NUREG-1022,Rev 1 because ECW is shared sys & conditions are applicable to both units.

Accession Number: ML20155B756

Date Released: Wednesday, June 17, 2020

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• ML20155B752 - Forwards LERs 98-020-00 & 98-021-00 re two separate occurrences of one train of ECW sys being inoperable.Repts for Unit 2 are being submitted IAW NUREG-1022,Rev 1 because ECW is shared sys & conditions are applicable to both units. (1 page(s), 10/26/1998)
• ML20155B762 - LER 98-020-00:on 980806,determined that ECW sys was inoperable.Caused by faulty temp control unit.Temp control unit was replaced & chiller performed satisfactorily. (7 page(s), 10/26/1998)
• ML20155B768 - LER 98-021-00:on 980903,train B ECW chiller failed to start using CR start push button.Caused by incorrect wiring of switch by personnel.Wiring was corrected & chiller was declared operable on 980926. (7 page(s), 10/26/1998)