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Forwards LERs 86-007,86-008 & 86-009.

Accession Number: ML20141N947

Date Released: Wednesday, June 3, 2020

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• ML20141N946 - Forwards LERs 86-007,86-008 & 86-009. (1 page(s), 3/14/1986)
• ML20141N948 - LER 86-007-00:on 860212,split of reactor bldg closed loop cooling water (RBCLCW) into accident configuration occurred due to lo-lo RBCLCW head tank A level.Caused by inadequate station procedure for filling HXs.Procedure being revised. (2 page(s), 3/14/1986)
• ML20141N949 - LER 86-008-00:on 860214,during surveillance procedure,split of reactor bldg closed loop cooling water (RBCLCW) sys occurred.Caused by technician accidentally bumping RBCLCW head tank B lo-lo level switch.Procedure revised. (2 page(s), 3/14/1986)
• ML20141N951 - LER 86-009-00:on 860217,during APRM functional test,full reactor trip occurred.Caused by technician failure to reset reactor protection sys trip signal A before initiating test of Logic Train B.Procedures being reviewed. (3 page(s), 3/14/1986)