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 Issue dateTitleTopic
05000373/LER-1982-025, Updated LER 82-025/03X-1:on 820516 & 17,during Leak Rate Testing,Drywell Equipment Sump Pump Started & Pumped Down Sump.Caused by Control Switches for Valves 1RE024 & 25 Left in Auto Position Instead of Closed Position2 June 1982Updated LER 82-025/03X-1:on 820516 & 17,during Leak Rate Testing,Drywell Equipment Sump Pump Started & Pumped Down Sump.Caused by Control Switches for Valves 1RE024 & 25 Left in Auto Position Instead of Closed Position
05000373/LER-1983-039, Updated LER 83-039/03X-1:on 830418,mechanical Snubbers R141-1060S Found Locked Between Hot & Cold Settings.Caused by Transient on Line 1R141BA-10,resulting in Water Flashing to Steam.Snubbers replaced.W/840320 Ltr21 February 1984Updated LER 83-039/03X-1:on 830418,mechanical Snubbers R141-1060S Found Locked Between Hot & Cold Settings.Caused by Transient on Line 1R141BA-10,resulting in Water Flashing to Steam.Snubbers replaced.W/840320 Ltr
05000373/LER-1983-117, Updated LER 83-117/03X-1:on 830920 & 30,RHR HX B Outlet Valve Limit Switches Temporarily Changed,Allowing Wedge Travel to Stop14 February 1984Updated LER 83-117/03X-1:on 830920 & 30,RHR HX B Outlet Valve Limit Switches Temporarily Changed,Allowing Wedge Travel to StopAnchor Darling
05000373/LER-1983-146, Updated LER 83-146/03X-1:on 831109,local Leak Rate for Inboard Feedwater Check Valves 1B21-F010A/B Exceeded Tech Spec.Caused by Gaps on Perimeter of Disc Seal Matl. Manufacturer Supplying One Piece seals.W/840313 Ltr21 February 1984Updated LER 83-146/03X-1:on 831109,local Leak Rate for Inboard Feedwater Check Valves 1B21-F010A/B Exceeded Tech Spec.Caused by Gaps on Perimeter of Disc Seal Matl. Manufacturer Supplying One Piece seals.W/840313 LtrAnchor Darling
05000373/LER-1983-147, Updated LER 83-147/03X-1:on 831112,RHR B HX Outlet Valve 1E12-F003B Failed to Open Via Motor Operator or Manually. Caused by Water Trapped in Bonnet Cavity.Valve Limit Switches Temporarily changed.W/840320 Ltr23 February 1984Updated LER 83-147/03X-1:on 831112,RHR B HX Outlet Valve 1E12-F003B Failed to Open Via Motor Operator or Manually. Caused by Water Trapped in Bonnet Cavity.Valve Limit Switches Temporarily changed.W/840320 LtrAnchor Darling
05000373/LER-1990-00718 July 1990LER 90-007-00:on 900618,RCIC Trip on Mechanical Overspeed Occurred During Surveillance Testing.Investigation Into Root Cause of Event Continuing.Actuator Disassembled & cleaned.W/900718 Ltr
05000373/LER-1993-01316 August 1993LER 93-013-00:on 930727,received Partial Group 7 Isolation. Caused by Failure of Coil in Relay 1B21H-K78.Work Request L23678 Written to Troubleshoot Group 7 Isolation.Subj Relay Problem Identified & Relay replaced.W/930816 Ltr
05000374/LER-1990-00813 July 1990LER 90-008-01:on 900502,ESF Actuation of Control Room B Emergency Ventilation Makeup Fan Occurred.Caused by Procedure Deficiency.Procedure LTS-800-205 Revised. W/900713 Ltr
05000374/LER-1992-01626 August 1993LER 92-016-01:on 921116,reactor Scram on Loss of Air Occurred.Caused by Inadequate Out of Svc Review & Lack of Administrative Controls.Procedures Revised & Individuals Involved counseled.W/930826 Ltr
05000374/LER-1993-00526 August 1993LER 93-005-00:on 930802,2A DG Declared Inoperable.Caused by Equipment Failure of 2A DG Discharge Relief Valve.Work Request Written to Replace 2A DG Relief valve.W/930826 LtrSafe Shutdown
ML20071A9229 February 1983Updated 82-067/03X-1:on 820722,dampers OVE07YA & OVE09YA Would Not Operate Manually.Caused by Blown Oil Seal in Actuator OFZ-VE007B (Damper OVE09YA).Actuators Repaired & Shop Tested Satisfactorily
ML20203L02825 April 1986Informs of Planned Site Visit to Obtain Info Supporting Implementation of Emergency Response Data Sys,Including Availability of PWR or BWR Parameters in Digital Form & Characterization of Available Data Feed PointsBackfit
ML20206N2269 December 1998LER 98-S03-00:on 981116,protected Area Was Entered Without Current Authorization for Unescorted Access Due to Programmatic Deficiency Error.Changed Badge Control ProcessFitness for Duty