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Forwards LERs 85-028-00,85-029-00,85-030-00 & 85-031-00.

Accession Number: ML20137X056

Date Released: Saturday, May 30, 2020

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• ML20137X052 - Forwards LERs 85-028-00,85-029-00,85-030-00 & 85-031-00. (1 page(s), 11/27/1985)
• ML20137X069 - LER 85-028-00:on 851030,main supply breaker in 13.8 kV normal switchgear mistakenly tripped,causing several actuations.Caused by personnel error.Equipment returned to normal operation. (2 page(s), 11/29/1985)
• ML20137X109 - LER 85-029-00:on 851031,isolation of Div 1 RWCU sys occurred causing closing of four outboard isolation valves.Caused by spurious opening of contacts on Riley temp modules.Mods to temp modules to reduce transient susceptibility begun. (3 page(s), 11/30/1985)
• ML20137X118 - LER 85-030-00:on 851101,Div 1 RWCU sys isolation occurred. Caused by spurious RWCS filter demineralizer Room 1 high temp alarm.RWCU sys placed back in operation.Mod in progress to correct flashing & noise spiking problems. (2 page(s), 12/1/1985)
• ML20137X140 - LER 85-031-00:on 851101,Div 1 RWCU isolation occurred.Caused by actuation of area selection switch when operator took RWCU room temps for Surveillance Test Procedure STP-000-001 & failed to place switch in bypass.Isolation reset. (2 page(s), 12/1/1985)