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Forwards LERs 85-031-00,85-032-00,85-033-00 & 85-034-00.

Accession Number: ML20137E676

Date Released: Saturday, May 30, 2020

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• ML20137E669 - Forwards LERs 85-031-00,85-032-00,85-033-00 & 85-034-00. (1 page(s), 11/21/1985)
• ML20137E696 - LER 85-031-00:on 851027,ESF actuated as result of lower containment airborne monitor particulate channel Train A high alarm.Caused by monitors trending upward.Setpoints readjusted. (1 page(s), 11/21/1985)
• ML20137E701 - LER 85-032-00:on 851022,upper containment area radiation monitor failed,resulting in ESF actuation signal.Caused by failure of two internal electronic modules.Failed modules replaced & monitor declared operable. (1 page(s), 11/21/1985)
• ML20137E803 - LER 85-033-00:on 851023,lower containment airborne monitor high-range noble gas channel gave spurious high alarm signal resulting in ESF actuation signal.Caused by software errors. Errors being evaluated by mfg. (2 page(s), 11/21/1985)
• ML20137E863 - LER 85-034-00:on 851024 & 30,high alarms received on lower containment airborne particulate radiation monitor Train B, resulting in ESF actuation signal.Caused by monitor trending upward.Setpoints readjusted. (1 page(s), 11/21/1985)