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Forwards LERs 88-017-01,89-017-00 & 89-018-00 for plant.

Accession Number: ML20245E930

Date Released: Tuesday, September 15, 2020

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• ML20245E928 - Forwards LERs 88-017-01,89-017-00 & 89-018-00 for plant. (1 page(s), 6/23/1989)
• ML20245E933 - LER 88-017-01:on 880506,unexpected scram of Group 3 control rods during monthly reactor protection sys channel test occurred.Cause not readily identified.Blown fuse replaced & current & voltage monitored while testing. (3 page(s), 6/23/1989)
• ML20245E938 - LER 89-017-00:on 890525,Divs 1 & 2 emergency diesel generators declared inoperable resulting in potential for generator trip.Caused by design deficiency in ground fault detection & trip circuit.Design changed.Part 21 related. (3 page(s), 6/23/1989)
• ML20245E943 - LER 89-018-00:on 890529,reactor vessel low water level trip unit to inboard,balance of plant isolation trip sys declared inoperable.Caused by personnel error.Individual retrained in correct interpretation of Tech Spec. (4 page(s), 6/23/1989)