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Forwards LERs 85-033-01,85-040-01,85-041-01,86-003-00, 86-004-00 & 86-005-00.

Accession Number: ML20154J298

Date Released: Tuesday, June 16, 2020

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• ML20154J294 - Forwards LERs 85-033-01,85-040-01,85-041-01,86-003-00, 86-004-00 & 86-005-00. (1 page(s), 2/28/1986)
• ML20154J319 - LER 85-033-01:on 851023,lower containment airborne monitor high-range noble gas channel gave spurious high alarm signal.Caused by software errors associated w/Eberline software.Mfg recommended 4 h log option be disabled. (2 page(s), 2/27/1986)
• ML20154J333 - LER 85-040-01:on 851205,high alarm received on upper containment normal-range area monitor,Train B.Exact cause unknown.DA-11 GM tubes changed on recommendations of mfg. (1 page(s), 2/27/1986)
• ML20154J346 - LER 85-041-01:on 851211,high alarm received on upper containment normal range area monitor,Train B.Exact cause unknown.DA-11 GM tubes changed. (1 page(s), 2/27/1986)
• ML20154J360 - LER 86-003-00:on 860207,ESF actuation occurred.Caused by high alarm signal.High alarm setpoint set at max scale & alert alarm setpoints set to correspond w/current radiological conditions. (1 page(s), 2/27/1986)
• ML20154J375 - LER 86-004-00:on 860129,defective fire penetration discovered in control cable vault.Caused by silicone seal not installed when penetration made.Fire watch posted & permanent seal installed.Safety evaluation performed. (5 page(s), 2/27/1986)
• ML20154J405 - LER 86-005-00:on 860201,reactor trip occurred.Caused by fire in CD 26/4 kV auxiliary transformer.Fire extinguished by onsite fire brigade. (1 page(s), 2/7/1986)