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 Issue dateTitleTopic
ML20217N92820 October 1999Special Rept:On 991003,PZR PORV Actuation Mitigated RCS low- Temp Overpressure Transient.Caused by a RCP Facilitating Sweeping of Entrained Air Out of RCS Loops.Operating Procedure 2-OP-5.1 Will Be Revised
ML20151X80110 September 1998Special Rept:On 980622,groundwater Level at Piezometer P-22 Was Again Noted to Be Above Max Water Level by 0.71 Feet. Increased Frequency of Piezometer Monitoring & Installed Addl Piezometers at Toe of Slope Along Southwest Section
ML20247K92815 May 1998Special Rept:On 980428,letdown PCV Exhibited Slow Response When C RCP Was Started.Cause to Be Determined.Review of Operating Procedure Will Be Performed to Determine If Enhancements Are Necessary
ML20217H9617 April 1998Special Rept:On 980216,groundwater Level at Piezometer P-22, Again Noted to Be Above Max Water Level by 0.41 Feet.Design Package for Installation of Addl Standpipe Piezometers at Toe of Slope Southeast Section,Developed
ML20210U85416 September 1997Special Rept:On 970623,groundwater Level at Piezometer P-22 Was Noted to Be Above Maximum Water Level by 0.31 Feet. Addl Standpipe Piezometers Will Be Installed at Toe of Slope of Dike Along Southeast Section to Provide Further Info
ML20141E76513 May 1997Special Rept:On 970430,groundwater Level at Piezometer P-22 Again Noted to Be Above Max Water Level by 0.86 Feet. Piezometers Along Southeast Portion of Dike Being Monitored on Increased Frequency for Yr to Determine Water Levels
ML20134H6584 February 1997Special Rept:On 970115,groundwater Level at Piezometer P-22 Noted Above Maximum Water Level by 0.51 Feet.Cause Indeterminate.Will Continue to Monitor Piezometers on Quarterly Basis & Will Install Addl Piezometers
ML20133B5713 December 1996Special Rept:On 960709,filter Shipment Exceeded Specific Activity Criteria for LSA Packages Defined in Revised Coc. Caused by Personnel Error.Revised Procedures to Minimize Referencing out-of-date Cocs
ML20116N31916 August 1996Special Rept:On 960714,hourly Fire Watch Established & Fire Barrier Blocks Removed in Preparation of Planned Charging Pump Mods.Blocks re-installed Following Completion of Mod on 960724Fire Barrier
Fire Watch
Hourly Fire Watch
ML20095C6997 December 1995Special Rept:On 951107,spillway EDG Failed to Start During Performance of Monthly Periodic Test.Corrective Maint Work Order Immediately Initiated to trouble-shoot & Repair Spillway EDG
ML20085M38522 June 1995Special Rept:On 950528,RCS Was Filled to Solid Water Conditions During start-up Activities Following Recent Refueling Outage
ML20083M5549 May 1995Special Rept:On 950329,gap Seals Between Top of 12 Inch Concrete Block Wall & Assoc Steel I Beams Above Block Wall Were Discovered Filled W/Everlastic Column Boxboard Engineering Review IntiatedFire Barrier
Fire Watch
ML20077S39917 January 1995Special Rept:On 940901,determined That Fire Damper Visual Insps Not Performed as Required Due to Fire Protection SRs Being Originally Misinterpreted.Requirements for Visual Insps Incorporated Into Periodic Test ProceduresMissed surveillance
ML20069K88324 May 1994Special Rept:On 940427,motor Driven Fire Pump Out of Svc for More than Seven Days.Fire Pump 1-FP-P11 Was Returned to Svc on 940510
ML20065E7016 April 1994Special Rept:On 940307,fuel Oil Pump House High Pressure Carbon Dioxide Sys & Control Room Halon Sys Did Not Perform as Required.Control Room Halon Sys Tested Satisfactorily & Declared OperableFire Watch
ML20058K4943 December 1993Special Rept:On 931109,EDG Failed to Auto Start During Performance of Main Dam Auxiliary Power Diesel Periodic Test 1-PT-1 Due to Low Out of Spec Readings on Four 6 Volt Batteries.Batteries Replaced & Subj Test Completed
ML20126D29622 December 1992Special Rept:On 921124,7-day SR of Updated FSAR Exceeded to Implement Work Activities on Quench Spray Pump House.On 921203,gaps Discovered in Fire Barrier Foam Matl Around Pipes.Fire Watch Established Until Mods Completed on 921214Fire Barrier
Fire Watch
ML20126A10314 December 1992Special Rept:On 921130,motor-driven Fire Pump Removed from Svc to Facilitate Maint Activities on Circulating Water Pump A.On 921202,diesel-driven Fire Pump 1-FP-P-2 Declared Inoperable.Caused by Failure of Control Circuit Relay
ML20128A15325 November 1992Update to 921112 RO Re Improperly Set EDG 2H & 2J.EDGs Reset to Max Position within 18 Minutes.Testing Verified That Max Fuel Available within Load Limiters.Item Not Reportable & 4 H Rept Made to NRC on 921112 Retracked
ML20127K82318 November 1992Special Rept:On 921015,motor-driven Fire Pump 1FP-P-1 Tagged Out & Removed from Svc for More than 7 Days to Permit Maint Activities.Fire Pump Returned to Svc on 921031 & Cross Tie to Fire Loop Will Be Opened When Fire Pump Out of Svc
ML20116D1092 November 1992Special Rept 92-702:on 921005,determined That Fire Damper 2-FP-FDMP-1011 Had Only Partially Closed During Performance of Halon Sys Pressure Switch Testing.Caused by Carpeting Obstructing Cable Link.Carpeting RemovedFire Barrier
ML20118C0142 October 1992Special Rept:On 920902,fire Barrier Silicone Foam Found to Be in Nonfunctional Condition on SW Lines.Caused by Voids in Silicone Foam Between All Four SW Pipes.Fire Watch Assigned, Per Administrative RequirementsFire Barrier
Fire Watch
ML20114D8582 September 1992Special Rept:On 920721,discovered That Fire Damper Not Installed as Specified in Station Drawing.Deviation Rept 92-1579 Submitted Upon Discovery & Hourly Fire Watch ImplementedFire Barrier
Hourly Fire Watch
ML20096E03714 May 1992Special Rept:On 920414,overpressure Protection Sys Actuated When Pressurizer PORV Opened.Caused by Unplanned Increase in RCS Pressure.Operations Personnel Coached on Importance of Properly Controlling Plant Parameters
ML20095B25014 April 1992Special Rept:On 920319,total Settlement of Corner of Fuel Oil Pumphouse (Survey Point 246),as Defined by Survey, Exceeded 75% Allowable Value of .030 Feet.Per Technical Rept CE-0019,structural Integrity Has Not Been Compromised
ML20091A93624 March 1992Special Rept:On 920310,failure of Underground Fire Protection Header Piping Experienced,Rendering Fire Suppession Sys Water Sys Inoperable.Leak Isolated & Motor Driven Fire Protection Pump Returned to Svc on 920317
ML20086A04812 November 1991Special Rept:On 911029,differential Settlement Between Containment & Main Steam Valve House Exceeded 75% of Allowable Value of 0.030 Ft.Ts Change Request Submitted on 911002 to Delete Monitoring Survey Points 131 & 124
ML20084U84118 April 1991Special Rept:On 910318,determined That Triaxial Response Spectrum Recorders of Seismic Monitoring Sys Did Not Meet TS 3.3.3.3 Required Measurement Range of 1-20 Hz.License Amend Will Be Submitted to Reflect Correct Ranges
ML20084U68716 April 1991Special Rept:On 901031,discovered Failure of Inst for Resource Mgt,Inc Security Screening Program.No Apparent Significant Degradation of Security Program Exists
ML20065M8566 December 1990Special Rept:On 901102,differential Settlement Between Unit Containment & Main Steam Valve House Exceeded TS Value. Caused by Stresses Placed on Piping.Tech Spec Change Request Submitted to Delete Monitoring Requirement
ML20055D30629 June 1990Ro:On 900530,differential Settlement Between Containment & Main Steam Valve House Exceeded 75% of Allowable Value of 0.030 Ft.Caused by Stresses Placed on Main Steam,Feedwater, Svc Water & Condenser Air Ejector Piping.Rept Reviewed
ML20248C53228 July 1989Special Rept:On 890601,discovered Differential Settlement Between Unit 2 Containment & Main Steam Valve House Exceeding Limit.Caused by Apparent Upward Movement of Point 131 on Unit 2 Containment.Procedure 1-PT-112 Revised
ML20246A92930 June 1989Advises That 30 Day Rept Re 890608 Inoperable Safeguards Area Ventilation Sys Not Required Since First Damper in Series Operable.Safeguards Area Ventilation Sys Operable During Incident
ML20246C31327 June 1989Special Rept:On 890528,min Number of Operable Smoke Detectors on Containment Recirculation Air Sys Not Restored to Operable Status within 14 Days.On 890602,detectors Returned to Operable Status.Engineering Evaluation Underway
ML20245J51528 April 1989Ro:On 890309,differential Settlement Between Svc Bldg & Unit 2 Main Steam Valve House Indicated That 110% of Current Allowable Differential Settlement Occurred.Differential Settlement Result of Inaccuracies in Survey Rod Utilized
ML20248J8527 April 1989Special Rept:On 890302,projected Doses Due to Radioactive Liquid Effluents Discharged to Unrestricted Areas Exceeded 0.06 Mrem Total Body in 31 Day Period.Caused by Calculation Error.Radiological Effluent Tech Specs to Be ComputerizedOffsite Dose Calculation Manual
ML20236B94317 March 1989Special Rept:On 890216,diesel Driven Fire Pump Out of Svc Greater than 7 Days,Per Tech Spec 3.7.14.1.Foreign Object Caused Damage to Pump Impeller,Number 3 Wear Rings & Lateral Rings.Repairs to Pumps Being Performed on Priority Basis
ML20235M76320 February 1989Special Rept:On 890206,Kaman Vent Stack B Radiation Monitor RI-VG-180 Inoperable for Greater than 72 H.Monitor Inoperable Due to High Radiation Levels.Sticking Check Source Repaired
ML20155J23020 October 1988Special Rept:On 880910,containment Mat Triaxial Response Spectrum Recorder Inoperable for More than 30 Days.Repairs to Alarm Circuit of Recorder Will Be Performed During Unit 1 1989 Refueling Outage
ML20245D88829 September 1988Ro:On 880915,Kaman Process Vent Radiation Monitor RI-GW-178 Exceeded Action Statement of Tech Spec 3.3.3.1.Smear Results Indicated That Check Source Had Started to Leach.Probably Caused by Condensation.Evaluation Being Performed
ML20153E96529 August 1988Ro:On 880813,Kaman Vent Stack a Radiation Monitor RI-VG-179 Declared Inoperable.Caused by Central Processing Unit Board Malfunction.New Board Ordered & Expected to Be Received on 881009
ML20207G57017 August 1988Ro:On 880803,Kaman Process Vent Radiation Monitor RI-GW-178 Exceeded Action Statement 35 of Tech Specs 3.3.3.1.Caused by Technical Problems Encountered During Calibr of RI-GW-178. RI-GW-178 Returned to Svc & Action Statement Cleared
ML20151R1345 August 1988Ro:On 880607,differential Settlement Between Svc Bldg & Main Steam Valve House Exceeded 75% of Allowable Value.Effect of Four Buried Svc Water Header Lines Running Between Two Structures of Primary Concern.Tech Spec Change Requested
ML20237G75914 August 1987Special Rept:On 870601,differential Settlement Between Svc Bldg & Main Steam Valve House Exceeded 75% Allowable Value of 0.03 Ft.Tech Spec Change Request Being Considered to Increase Allowable Value to 0.047 Ft.Engineering Rept Encl
ML20235P3139 July 1987Special Rept:During Startup Physics Testing,Positive Moderator Temp Coefficient of +1.24 Pcm/F Measured. Conservative Calculations Demonstrate That Moderator Temp Coefficient Will Be Negative at 70% Reactor Power
ML20205H4208 August 1986Ro:On 860805,automatic Level Controller for Bearing Cooling Water Tower Malfunctioned,Releasing Approx 1,500 Gallons Water to Discharge Canal.Controller Placed in Manual Position
ML20091Q4027 June 1984Special Rept SP-N1-84-02:on 840512,specific Activity of RCS Exceeded Tech Spec Dose Equivalent I-131 Limit of 1.0 Uci/G.Caused by Minor Fuel Element Defects.Primary Coolant Sampled & Analyzed
ML20080H3891 February 1984Special Rept SP-N1-84-01:on 840109,following Unit Rampdown, I-131 Dose Equivalent Specific Activity Exceeded 1.0 Mci/G. Caused by Minor Fuel Element Defects in Reactor Core. Reactor Power Change Rates Administratively LimitedPower change
ML20080H9811 February 1984RO SP-N1-84-01:on 840109,I-131 Dose Equivalent Specific Activity Exceeded Tech Spec Limit.Caused by Minor Fuel Element Defects in Reactor Core.Primary Coolant Sampled & Analyzed at Accelerated FrequencyPower change
ML20126C53117 March 1980RO 80-035/01T-0:insps at Foreign Plant Revealed Stress Corrosion Cracking in Westinghouse Control Rod Guide Tube Support Pin,Solution heat-treated at 1825 F.Ultrasonic Insps Will Be Done
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