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Forwards LERs 78-066/03L-0,78-067/03L-0 & 78-068/03L-0.

Accession Number: ML20064C514

Date Released: Wednesday, March 18, 2020

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• ML20064C512 - Forwards LERs 78-066/03L-0,78-067/03L-0 & 78-068/03L-0. (1 page(s), 10/16/1978)
• ML20064C516 - LER 78-066/03L-0:on 780914,NRC inspector noted that diesel generator 1B air start reservoir pressure less than 200 psig.Caused by leaking air compressor relief valve/check valve.Personnel instructed to follow FNP-1-AP-52. (3 page(s), 10/16/1978)
• ML20064C522 - LER 78-067/03L-0:on 780917,during change from hot to cold shutdown,both containment spray pumps tagged out.Caused by defective procedure. (1 page(s), 10/16/1978)
• ML20064C530 - LER 78-068/03L-0:on 780917,during Surveillance Test Procedure FNP-L-STP-40.3,diesel generator JB auto-started, but frequency would not increase over 58.5Hz.Caused by loose coupling between dc motor & potentiometer. (1 page(s), 10/16/1978)