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Forwards LERs 84-001-00,84-002-00 & 84-003-00.

Accession Number: ML20080N192

Date Released: Friday, April 3, 2020

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• ML20080N189 - Forwards LERs 84-001-00,84-002-00 & 84-003-00. (1 page(s), 2/13/1984)
• ML20080N221 - LER 84-001-00:on 840113,manual trip initiated upon closure of main steam trip valve A.Unwarranted valve closure due to hairline crack in air line pipe nipple of valve actuator. Possibly caused by mechanical fatigue.Nipple replaced. (3 page(s), 2/13/1984)
• ML20080N236 - LER 84-002-00:on 840114,at 2% power following 840113 trip, during replacement of open coil in reactor trip relay, reactor trip breaker A deenergized when first coil lead removed,resulting in reactor trip.Caused by personnel error. (3 page(s), 2/13/1984)
• ML20080N248 - LER 84-003-00:on 840114,while at 23% power,feed flow to steam generator A increased to full flow.Valve opened & steam generator A high level trip initiated turbine trip, tripping reactor.Caused by air supply piping damage. (3 page(s), 2/13/1984)