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 Position
From kanterella
| ML20065T705 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 06/02/1982 |
| From: | COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20065T685 | List: |
| References | |
| LER-82-025-03X-01, LER-82-25-3X-1, NUDOCS 8211020655 | |
| Download: ML20065T705 (2) | |
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Category:LICENSEE EVENT REPORT (SEE ALSO AO RO)
MONTHYEARML20206N2261998-12-0909 December 1998
[Table view]LER 98-S03-00:on 981116,protected Area Was Entered Without Current Authorization for Unescorted Access Due to Programmatic Deficiency Error.Changed Badge Control Process 05000374/LER-1993-0051993-08-26026 August 1993 LER 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 Ltr 05000374/LER-1992-0161993-08-26026 August 1993 LER 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 05000373/LER-1993-0131993-08-16016 August 1993 LER 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 05000373/LER-1990-0071990-07-18018 July 1990 LER 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 05000374/LER-1990-0081990-07-13013 July 1990 LER 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 ML20203L0281986-04-25025 April 1986 Informs 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 Points 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 Ltr1984-02-23023 February 1984 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 Ltr 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 Ltr1984-02-21021 February 1984 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 Ltr 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 Ltr1984-02-21021 February 1984 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 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 Stop1984-02-14014 February 1984 Updated LER 83-117/03X-1:on 830920 & 30,RHR HX B Outlet Valve Limit Switches Temporarily Changed,Allowing Wedge Travel to Stop ML20071A9221983-02-0909 February 1983 Updated 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 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 Position1982-06-0202 June 1982 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 Position 1998-12-09 Category:TEXT-SAFETY REPORT MONTHYEARML20217C9121999-10-12012 October 1999
[Table view]SER Input Authorizing Licensee Proposed Request to Modify Definition of Core Alteration in Section 1.0 of TS & Update Sections 3/4.1,3.4.3 & 3/4.9 to Reflect Proposed Definition Change ML20217F9091999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for LaSalle County Stations,Units 1 & 2.With ML20217A1691999-09-22022 September 1999 Part 21 Rept Re Engine Sys,Inc Controllers,Manufactured Between Dec 1997 & May 1999,that May Have Questionable Soldering Workmanship.Caused by Inadequate Personnel Training.Sent Rept to All Nuclear Customers ML20212C4501999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for LaSalle County Station,Units 1 & 2.With ML20210R0671999-07-31031 July 1999 Monthly Operating Repts for July 1999 for LaSalle County Station,Units 1 & 2.With ML20210C1681999-07-0909 July 1999 Seventh Refueling Outage ASME Section XI Summary Rept ML20209H1501999-06-30030 June 1999 Monthly Operating Repts for June 1999 for LaSalle County Station,Units 1 & 2.With ML20195J7871999-05-31031 May 1999 Monthly Operating Repts for May 1999 for LaSalle County Station,Units 1 & 2.With ML20209E1431999-05-31031 May 1999 Cycle 8 COLR, for May 1999 ML20195B2591999-05-19019 May 1999 Rev 66a to CE-1-A,consisting of Proposed Changes to QAP for Dnps,Qcs,Znps,Lcs,Byron & Braidwood Stations ML20206N2071999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for LaSalle County Station,Units 1 & 2.With ML20205L8421999-03-31031 March 1999 Rev 2 to EMF-96-125, LaSalle Unit 2 Cycle 8 Reload Analysis ML20205L8301999-03-31031 March 1999 Administrative Technical Requirements App B (Amend 26) LaSalle Unit 2 Cycle 8 COLR & Reload Transient Analysis Results, for Mar 1999 ML20205R2721999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for LaSalle County Station,Units 1 & 2.With ML20205L8391999-03-22022 March 1999 Rev 2 to 960103, Neutronics Licensing Rept for LaSalle Unit 2,Cycle 8 ML20204C8141999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for LaSalle County Station,Units 1 & 2.With ML20199E4601998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for LaSalle County Station,Units 1 & 2.With ML20207C7371998-12-31031 December 1998 Annual Rept for LaSalle County Station for Jan 1998 Through Dec 1998 ML20205M7061998-12-31031 December 1998 Unicom Corp 1998 Summary Annual Rept. with ML20198B3801998-12-14014 December 1998 SER Accepting one-time Request for Relief from Certain Provisions of Section XI of ASME Boiler & Pressure Vessel Code,Per 10CFR50.55a for Certain Plant Safety/Relief Valves ML20206N2261998-12-0909 December 1998 LER 98-S03-00:on 981116,protected Area Was Entered Without Current Authorization for Unescorted Access Due to Programmatic Deficiency Error.Changed Badge Control Process ML20197K0981998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for LaSalle County Station,Unts 1 & 2.With ML20196B1441998-11-23023 November 1998 Safety Evaluation Accepting Licensee Response to GL 95-07, Pressure Locking & Thermal Bindings of Safety-Related Power-Operated Gate Valves ML20196A4191998-11-19019 November 1998 Safety Evaluation Accepting QA TR CE-1-A,Rev 66 Re Changes in Independent & Onsite Review Organization by Creating NSRB ML20195D3191998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for LaSalle County Station.With ML20154H6781998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for LaSalle County Nuclear Power Station,Units 1 & 2 ML20153D0191998-09-18018 September 1998 Part 21 Rept Re Defect in Gap Conductance Analyses for co- Resident BWR Fuel.Initially Reported on 980917.Corrective Analyses Performed Demonstrating That Current Operating Limits Bounding from BOC to Cycle Exposure of 8 Gwd/Mtu ML20153C7621998-09-18018 September 1998 Safety Evaluation Acceping NRC Bulletin 95-002, Unexpected Clogging of RHR Pump Strainer While Operating in Suppression Pool Cooling Mode ML20153C6771998-09-17017 September 1998 Part 21 Rept Re Defect Relative to MCPR Operating Limits as Impacted by Gap Conductance of co-resident BWR Fuel at Facilities.Operating Limit for LaSalle Unit 2 & Quad Cities Unit 2 Will Be Revised as Listed ML20151W0241998-08-31031 August 1998 Monthly Operating Repts for Aug 1998 for LaSalle County Station.With ML20237E2921998-08-21021 August 1998 Special Rept:On 980811,channel 5 of Lpms Became Inoperable. Caused by Channel Failed pre-amplifier Located Inside Primary Containment at Inboard Side of Electrical Penetration E-19.Initiated Repairs of Channel ML20237E2331998-08-21021 August 1998 Revised Pages of Section 20 of Rev 66 to CE-1-A, QA Topical Rept ML20237B4861998-07-31031 July 1998 Monthly Operating Repts for July 1998 for LaSalle County Nuclear Power Station Units 1 & 2 ML20236V7701998-07-31031 July 1998 Revised LaSalle Unit 1 Cycle 8 COLR & Reload Transient Analysis Results ML20236P8231998-07-14014 July 1998 Special Rept:From 980614-17,various Fire Rated Assemblies Were Inoperable for Period Greater than Seven Days.Caused by Test Equipment Being Routed Through Fire Doors.Established Fire Watches & on 980619 Assemblies Were Declared Operable ML20236N6751998-07-0909 July 1998 Part 21 & Deficiency Rept Re Notification of Potential Safety Hazard from Breakage of Cast Iron Suction Heads in Apkd Type Pumps.Caused by Migration of Suction Head Journal Sleeve Along Lower End of Pump Shaft.Will Inspect Pumps ML20236L8041998-07-0606 July 1998 Safety Evaluation Granting Licensee 980304 Request for Second 10-yr Interval Pump & Valve IST Program Plan,Rev 2, Including Changes to 2 ASME Boiler & Pressure Vessel Code Relief Requests Previously Submitted in Rev 1 ML20236P3611998-06-30030 June 1998 Monthly Operating Repts for June 1998 for LaSalle County Nuclear Power Station,Units 1 & 2 ML20249C4891998-06-22022 June 1998 Special Rept:On 980522,Fire Detection Zone 1-31 Was Noted out-of-service for More than 14 Days.Detection Sys Was Taken out-of-service on 980508 to Prevent False Alarms During Hot Work Activities.Sys Was Returned to Operable Status 980528 ML20248M3101998-05-31031 May 1998 Monthly Operating Repts for May 1998 for LaSalle County Nuclear Power Station,Units 1 & 2 ML20236V7771998-05-31031 May 1998 Rev 1 to 24A5180, Supplemental Reload Licensing Rept for LaSalle County Station Unit 1 Reload 7 Cycle 8 ML20217Q7041998-05-0404 May 1998 Safety Evaluation Accepting Util Request to Leave Leak Chase Channels Plugged During Performance of Containment ILRT ML20247M4491998-04-30030 April 1998 Monthly Operating Repts for Apr 1998 for LaSalle County Station ML20216F4941998-03-31031 March 1998 Monthly Operating Repts for Mar 1998 for LaSalle County Station,Units 1 & 2 ML20217N6581998-03-30030 March 1998 Special Rept on Fire Detection,Deluge Sys & Fire Rated Assemblies During Period of 980303-25.Established Fire Watches Until Affected Equipment Is Returned to Operable Status ML20216D9511998-02-28028 February 1998 Monthly Operating Repts for Feb 1998 for LaSalle County Station,Units 1 & 2 ML20247M4631998-02-28028 February 1998 Rev Monthly Operating Rept for Feb 1998 for LaSalle County Station ML20203D7241998-02-20020 February 1998 Special Rept:On 980118,Fire Detection Zones 1-18 & 2-18 Taken out-of-svc to Prevent False Alarms During Hot Work Activities on Auxiliary Electric Equipment Room Ventilation Sys.Fire Watches Will Remain in Place ML20202G9851998-01-31031 January 1998 Monthly Operating Repts for Jan 1998 for LaSalle County Station,Units 1 & 2 ML20199K1651998-01-23023 January 1998 Rev 65h to Topical Rept CE-1-A, Comm Ed QA Tr 1999-09-30 |
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| 3732082025R00 - NRC Website | |