10 CFR 50.73-28a-29-282-29-28vi-29
type: Ontology
creation date: 2025-12-06T10:26:34-05:00
imports: http://semantic-mediawiki.org/swivt/1.0

10 CFR 50.73(a)(2)(vi)
type: Subject
page: https://kanterella.com/10_CFR_50.73-28a-29-282-29-28vi-29
wiki namespace: 0
wiki page content language: en
wiki page sort key: 10 CFR 50.73(a)(2)(vi)

05000412/LER-2009-001, Equipment Operability for Steam Generator Tube Rupture Safety Analysis Not Met
type: Subject
page: https://kanterella.com/05000412/LER-2D2009-2D001-2C_Equipment_Operability_for_Steam_Generator_Tube_Rupture_Safety_Analysis_Not_Met
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000412/LER-2009-001, Equipment Operability for Steam Generator Tube Rupture Safety Analysis Not Met

05000286/LER-2001-001
type: Subject
page: https://kanterella.com/05000286/LER-2D2001-2D001
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000286/LER-2001-001

05000277/LER-2001-001
type: Subject
page: https://kanterella.com/05000277/LER-2D2001-2D001
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000277/LER-2001-001

LER-1989-005, :on 890503,inoperability of Low Temp Overpressure Protection Sys Using Nitrogen Gas Discovered. Caused by Inadequate post-mod Testing.Nitrogen Regulators Moved to Location Near PORVs
type: Subject
label: 05000266/LER-1989-005, :on 890503,inoperability of Low Temp Overpressure Protection Sys Using Nitrogen Gas Discovered. Caused by Inadequate post-mod Testing.Nitrogen Regulators Moved to Location Near PORVs
page: https://kanterella.com/05000266/LER-2D1989-2D005-2C_-3Aon_890503-2Cinoperability_of_Low_Temp_Overpressure_Protection_Sys_Using_Nitrogen_Gas_Discovered._Caused_by_Inadequate_post-2Dmod_Testing.Nitrogen…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000266/LER-1989-005, :on 890503,inoperability of Low Temp Overpressure Protection Sys Using Nitrogen Gas Discovered. Caused by Inadequate post-mod Testing.Nitrogen Regulators Moved to Location Near PORVs

05000339/LER-1989-003, Advises of Change in Reportability for LER 89-003-00 Re 10 Containment Isolation Valves W/Excessive Leak Rates
type: Subject
page: https://kanterella.com/05000339/LER-2D1989-2D003-2C_Advises_of_Change_in_Reportability_for_LER_89-2D003-2D00_Re_10_Containment_Isolation_Valves_W/Excessive_Leak_Rates
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000339/LER-1989-003, Advises of Change in Reportability for LER 89-003-00 Re 10 Containment Isolation Valves W/Excessive Leak Rates

Technical Support Center HVAC Under Certain Worst Case Conditions.Caused by Inadequate Engineering Review.Ecn R-0911 Written
type: Subject
label: 05000312/LER-1986-023, :on 861111,inadequate Voltage Supplies Sent to Control Room/Technical Support Center HVAC Under Certain Worst Case Conditions.Caused by Inadequate Engineering Review.Ecn R-0911 Written
page: https://kanterella.com/05000312/LER-2D1986-2D023-2C_-3Aon_861111-2Cinadequate_Voltage_Supplies_Sent_to_Control_Room/Technical_Support_Center_HVAC_Under_Certain_Worst_Case_Conditions.Caused_by_Inadequa…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000312/LER-1986-023, :on 861111,inadequate Voltage Supplies Sent to Control Room/Technical Support Center HVAC Under Certain Worst Case Conditions.Caused by Inadequate Engineering Review.Ecn R-0911 Written

05000267/LER-1987-012, :on 870416,functional Test Procedures for Gaseous & Liquid Effluent Radiation Monitors Discovered Deficient.Caused by Personnel Oversight.Procedures Changed
type: Subject
page: https://kanterella.com/05000267/LER-2D1987-2D012-2C_-3Aon_870416-2Cfunctional_Test_Procedures_for_Gaseous_-26_Liquid_Effluent_Radiation_Monitors_Discovered_Deficient.Caused_by_Personnel_Oversight.Proc…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000267/LER-1987-012, :on 870416,functional Test Procedures for Gaseous & Liquid Effluent Radiation Monitors Discovered Deficient.Caused by Personnel Oversight.Procedures Changed

LER-1987-005, :on 870130,two Temporary Cables,Used to Collect Data During Startup,Incorrectly Routed & Not Connected to Proper Channelized Multiplexers.Caused by Improper Evaluation During Cable Installation
type: Subject
label: 05000352/LER-1987-005, :on 870130,two Temporary Cables,Used to Collect Data During Startup,Incorrectly Routed & Not Connected to Proper Channelized Multiplexers.Caused by Improper Evaluation During Cable Installation
page: https://kanterella.com/05000352/LER-2D1987-2D005-2C_-3Aon_870130-2Ctwo_Temporary_Cables-2CUsed_to_Collect_Data_During_Startup-2CIncorrectly_Routed_-26_Not_Connected_to_Proper_Channelized_Multiplexers.…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000352/LER-1987-005, :on 870130,two Temporary Cables,Used to Collect Data During Startup,Incorrectly Routed & Not Connected to Proper Channelized Multiplexers.Caused by Improper Evaluation During Cable Installation

05000255/LER-1987-001, :on 870114,plant Engineering Personnel Discovered Four Containment Penetrations Did Not Employ Redundant Isolation Logic.Caused by Architect/Engineer Error.Mod Being Performed
type: Subject
page: https://kanterella.com/05000255/LER-2D1987-2D001-2C_-3Aon_870114-2Cplant_Engineering_Personnel_Discovered_Four_Containment_Penetrations_Did_Not_Employ_Redundant_Isolation_Logic.Caused_by_Architect/Eng…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000255/LER-1987-001, :on 870114,plant Engineering Personnel Discovered Four Containment Penetrations Did Not Employ Redundant Isolation Logic.Caused by Architect/Engineer Error.Mod Being Performed

05000336/LER-1986-015-01, :on 861114,diesel Generator Differential Relays Not Seismically Qualified for Class IE Svc.Caused by Installation of Nonqualified Relays.Relays Removed from Svc & Replaced
type: Subject
page: https://kanterella.com/05000336/LER-2D1986-2D015-2D01-2C_-3Aon_861114-2Cdiesel_Generator_Differential_Relays_Not_Seismically_Qualified_for_Class_IE_Svc.Caused_by_Installation_of_Nonqualified_Relays.Re…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000336/LER-1986-015-01, :on 861114,diesel Generator Differential Relays Not Seismically Qualified for Class IE Svc.Caused by Installation of Nonqualified Relays.Relays Removed from Svc & Replaced

Containment Hydrogen Monitoring Sys Did Not Employ Redundant Isolation Logic.Caused by Sys Design Description Not Being Implemented as Prescribed
type: Subject
label: 05000255/LER-1987-001-01, :on 870114,containment Penetrations Associated W/Containment Hydrogen Monitoring Sys Did Not Employ Redundant Isolation Logic.Caused by Sys Design Description Not Being Implemented as Prescribed
page: https://kanterella.com/05000255/LER-2D1987-2D001-2D01-2C_-3Aon_870114-2Ccontainment_Penetrations_Associated_W/Containment_Hydrogen_Monitoring_Sys_Did_Not_Employ_Redundant_Isolation_Logic.Caused_by_Sys…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000255/LER-1987-001-01, :on 870114,containment Penetrations Associated W/Containment Hydrogen Monitoring Sys Did Not Employ Redundant Isolation Logic.Caused by Sys Design Description Not Being Implemented as Prescribed

05000336/LER-1987-015, :on 861114,util Informed That GE Model 12 Cfd Relays Installed Above 30-ft Elevation Not Seismically Qualified for Class 1E Svc.Caused by Design Error.Relay Replaced
type: Subject
page: https://kanterella.com/05000336/LER-2D1987-2D015-2C_-3Aon_861114-2Cutil_Informed_That_GE_Model_12_Cfd_Relays_Installed_Above_30-2Dft_Elevation_Not_Seismically_Qualified_for_Class_1E_Svc.Caused_by_Desi…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000336/LER-1987-015, :on 861114,util Informed That GE Model 12 Cfd Relays Installed Above 30-ft Elevation Not Seismically Qualified for Class 1E Svc.Caused by Design Error.Relay Replaced

LER-1986-003-09, :on 861121,hard Rubber Fire Hoses Declared Inoperable Due to Lack of Valid,Current Hydrostatic Test. Caused by Hose Failure Due to Improper Coupling for Intended Use.Hoses Replaced.Personnel Counseled
type: Subject
label: 05000456/LER-1986-003-09, :on 861121,hard Rubber Fire Hoses Declared Inoperable Due to Lack of Valid,Current Hydrostatic Test. Caused by Hose Failure Due to Improper Coupling for Intended Use.Hoses Replaced.Personnel Counseled
page: https://kanterella.com/05000456/LER-2D1986-2D003-2D09-2C_-3Aon_861121-2Chard_Rubber_Fire_Hoses_Declared_Inoperable_Due_to_Lack_of_Valid-2CCurrent_Hydrostatic_Test._Caused_by_Hose_Failure_Due_to_Improp…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000456/LER-1986-003-09, :on 861121,hard Rubber Fire Hoses Declared Inoperable Due to Lack of Valid,Current Hydrostatic Test. Caused by Hose Failure Due to Improper Coupling for Intended Use.Hoses Replaced.Personnel Counseled

LER-1986-023, :on 860311,inappropriate Calibr Method Used & on 860312,monitors Calibr Nonconservatively.Caused by Defective Procedure.Calibr Methods for Radiation Monitors Reviewed & Four Monitors Recalibr
type: Subject
label: 05000423/LER-1986-023, :on 860311,inappropriate Calibr Method Used & on 860312,monitors Calibr Nonconservatively.Caused by Defective Procedure.Calibr Methods for Radiation Monitors Reviewed & Four Monitors Recalibr
page: https://kanterella.com/05000423/LER-2D1986-2D023-2C_-3Aon_860311-2Cinappropriate_Calibr_Method_Used_-26_on_860312-2Cmonitors_Calibr_Nonconservatively.Caused_by_Defective_Procedure.Calibr_Methods_for_R…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000423/LER-1986-023, :on 860311,inappropriate Calibr Method Used & on 860312,monitors Calibr Nonconservatively.Caused by Defective Procedure.Calibr Methods for Radiation Monitors Reviewed & Four Monitors Recalibr

LER-1985-003-02, :on 850319,discovered Previous Studies Did Not Identify Units 3 & 4 Const Area as Potential Flood Path. Caused by Only Partial Flooding Addressed in Updated Fsar. Corrective Actions Being Evaluated
type: Subject
label: 05000338/LER-1985-003-02, :on 850319,discovered Previous Studies Did Not Identify Units 3 & 4 Const Area as Potential Flood Path. Caused by Only Partial Flooding Addressed in Updated Fsar. Corrective Actions Being Evaluated
page: https://kanterella.com/05000338/LER-2D1985-2D003-2D02-2C_-3Aon_850319-2Cdiscovered_Previous_Studies_Did_Not_Identify_Units_3_-26_4_Const_Area_as_Potential_Flood_Path._Caused_by_Only_Partial_Flooding_A…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000338/LER-1985-003-02, :on 850319,discovered Previous Studies Did Not Identify Units 3 & 4 Const Area as Potential Flood Path. Caused by Only Partial Flooding Addressed in Updated Fsar. Corrective Actions Being Evaluated

LER-1986-019, :on 860415,deficiencies Identified in RHR Valve 9 in Limitorque motor-operated Valve During Insp.Similar Environ Qualification Deficiencies Found in 27 Valves.All Deficiencies Corrected
type: Subject
label: 05000397/LER-1986-019, :on 860415,deficiencies Identified in RHR Valve 9 in Limitorque motor-operated Valve During Insp.Similar Environ Qualification Deficiencies Found in 27 Valves.All Deficiencies Corrected
page: https://kanterella.com/05000397/LER-2D1986-2D019-2C_-3Aon_860415-2Cdeficiencies_Identified_in_RHR_Valve_9_in_Limitorque_motor-2Doperated_Valve_During_Insp.Similar_Environ_Qualification_Deficiencies_Fo…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000397/LER-1986-019, :on 860415,deficiencies Identified in RHR Valve 9 in Limitorque motor-operated Valve During Insp.Similar Environ Qualification Deficiencies Found in 27 Valves.All Deficiencies Corrected

LER-1986-008, :on 860221,negative Flux Rate Trip Discovered to Be Calibr to Nonconservative Value.Caused by Input Changes to Accident Analysis for Dropped Rods.Safety Analysis Procedures Reviewed
type: Subject
label: 05000295/LER-1986-008, :on 860221,negative Flux Rate Trip Discovered to Be Calibr to Nonconservative Value.Caused by Input Changes to Accident Analysis for Dropped Rods.Safety Analysis Procedures Reviewed
page: https://kanterella.com/05000295/LER-2D1986-2D008-2C_-3Aon_860221-2Cnegative_Flux_Rate_Trip_Discovered_to_Be_Calibr_to_Nonconservative_Value.Caused_by_Input_Changes_to_Accident_Analysis_for_Dropped_Rod…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000295/LER-1986-008, :on 860221,negative Flux Rate Trip Discovered to Be Calibr to Nonconservative Value.Caused by Input Changes to Accident Analysis for Dropped Rods.Safety Analysis Procedures Reviewed

LER-1988-004, :on 880318,determined Potential Fouling of ECCS Suction Strainers.Caused by Insufficient Area of Existing Strainers.Project Assignment Initiated to Replace ECCS Suction Strainers
type: Subject
label: 05000245/LER-1988-004, :on 880318,determined Potential Fouling of ECCS Suction Strainers.Caused by Insufficient Area of Existing Strainers.Project Assignment Initiated to Replace ECCS Suction Strainers
page: https://kanterella.com/05000245/LER-2D1988-2D004-2C_-3Aon_880318-2Cdetermined_Potential_Fouling_of_ECCS_Suction_Strainers.Caused_by_Insufficient_Area_of_Existing_Strainers.Project_Assignment_Initiated…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000245/LER-1988-004, :on 880318,determined Potential Fouling of ECCS Suction Strainers.Caused by Insufficient Area of Existing Strainers.Project Assignment Initiated to Replace ECCS Suction Strainers

LER-1987-028, :on 871217,design Deficiency That Could Permit Diesel Generator Trips During Seismic Event Discovered. Caused by Deficiency in Original Design.Two Possible Design Mods to Resolve Problem Being Evaluated
type: Subject
label: 05000277/LER-1987-028, :on 871217,design Deficiency That Could Permit Diesel Generator Trips During Seismic Event Discovered. Caused by Deficiency in Original Design.Two Possible Design Mods to Resolve Problem Being Evaluated
page: https://kanterella.com/05000277/LER-2D1987-2D028-2C_-3Aon_871217-2Cdesign_Deficiency_That_Could_Permit_Diesel_Generator_Trips_During_Seismic_Event_Discovered._Caused_by_Deficiency_in_Original_Design.T…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000277/LER-1987-028, :on 871217,design Deficiency That Could Permit Diesel Generator Trips During Seismic Event Discovered. Caused by Deficiency in Original Design.Two Possible Design Mods to Resolve Problem Being Evaluated

05000245/LER-1988-004-02, :on 880318,discovered Potential for ECCS Pump Suction Strainers to Foul W/Fibrous Insulation Debris.Caused by Insufficient Area of Existing Strainers.Strainers Replaced
type: Subject
page: https://kanterella.com/05000245/LER-2D1988-2D004-2D02-2C_-3Aon_880318-2Cdiscovered_Potential_for_ECCS_Pump_Suction_Strainers_to_Foul_W/Fibrous_Insulation_Debris.Caused_by_Insufficient_Area_of_Existing…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000245/LER-1988-004-02, :on 880318,discovered Potential for ECCS Pump Suction Strainers to Foul W/Fibrous Insulation Debris.Caused by Insufficient Area of Existing Strainers.Strainers Replaced

LER-1987-028-01, :on 871217,design Deficiency Discovered Which Could Result in Diesel Generator Trips During Loss of Offsite Power Event.Caused by Deficiency in Original Design. Design Review of Cardox Sys Initiated
type: Subject
label: 05000277/LER-1987-028-01, :on 871217,design Deficiency Discovered Which Could Result in Diesel Generator Trips During Loss of Offsite Power Event.Caused by Deficiency in Original Design. Design Review of Cardox Sys Initiated
page: https://kanterella.com/05000277/LER-2D1987-2D028-2D01-2C_-3Aon_871217-2Cdesign_Deficiency_Discovered_Which_Could_Result_in_Diesel_Generator_Trips_During_Loss_of_Offsite_Power_Event.Caused_by_Deficienc…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000277/LER-1987-028-01, :on 871217,design Deficiency Discovered Which Could Result in Diesel Generator Trips During Loss of Offsite Power Event.Caused by Deficiency in Original Design. Design Review of Cardox Sys Initiated

General Ofc QA Personnel.Nuts Tested Per NRC Bulletin 87-002
type: Subject
label: 05000413/LER-1988-011, :on 880126,nuts Received W/O Proper Charpy Impact Testing Documentation.Caused by Mfg Deficiency & Personnel Error.Incident Reviewed W/General Ofc QA Personnel.Nuts Tested Per NRC Bulletin 87-002
page: https://kanterella.com/05000413/LER-2D1988-2D011-2C_-3Aon_880126-2Cnuts_Received_W/O_Proper_Charpy_Impact_Testing_Documentation.Caused_by_Mfg_Deficiency_-26_Personnel_Error.Incident_Reviewed_W/General…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000413/LER-1988-011, :on 880126,nuts Received W/O Proper Charpy Impact Testing Documentation.Caused by Mfg Deficiency & Personnel Error.Incident Reviewed W/General Ofc QA Personnel.Nuts Tested Per NRC Bulletin 87-002

05000295/LER-1986-008-01, :on 860221,negative Flux Rate Trip Discovered Calibr to Nonconservative Value.Caused by Discrepant Westinghouse Owners Group Procedure Restrictions.Tech Spec Approved by NRC
type: Subject
page: https://kanterella.com/05000295/LER-2D1986-2D008-2D01-2C_-3Aon_860221-2Cnegative_Flux_Rate_Trip_Discovered_Calibr_to_Nonconservative_Value.Caused_by_Discrepant_Westinghouse_Owners_Group_Procedure_Rest…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000295/LER-1986-008-01, :on 860221,negative Flux Rate Trip Discovered Calibr to Nonconservative Value.Caused by Discrepant Westinghouse Owners Group Procedure Restrictions.Tech Spec Approved by NRC

05000278/LER-1985-020-02, :on 851120,RHR Pump C Tripped & Caught Fire. Caused by Failed Impeller Eye Wear Ring.Fire Extinguished & New Wear Rings Installed
type: Subject
page: https://kanterella.com/05000278/LER-2D1985-2D020-2D02-2C_-3Aon_851120-2CRHR_Pump_C_Tripped_-26_Caught_Fire._Caused_by_Failed_Impeller_Eye_Wear_Ring.Fire_Extinguished_-26_New_Wear_Rings_Installed
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000278/LER-1985-020-02, :on 851120,RHR Pump C Tripped & Caught Fire. Caused by Failed Impeller Eye Wear Ring.Fire Extinguished & New Wear Rings Installed

LER-1985-029-01, :on 851001,Westinghouse Notified Util That Reanalysis of Peak Containment Pressure Calculation Resulted in Greater Value than Internal Pressure of 15 Psig.Emergency Procedure for Nd Spray Initiation Revised
type: Subject
label: 05000369/LER-1985-029-01, :on 851001,Westinghouse Notified Util That Reanalysis of Peak Containment Pressure Calculation Resulted in Greater Value than Internal Pressure of 15 Psig.Emergency Procedure for Nd Spray Initiation Revised
page: https://kanterella.com/05000369/LER-2D1985-2D029-2D01-2C_-3Aon_851001-2CWestinghouse_Notified_Util_That_Reanalysis_of_Peak_Containment_Pressure_Calculation_Resulted_in_Greater_Value_than_Internal_Pres…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000369/LER-1985-029-01, :on 851001,Westinghouse Notified Util That Reanalysis of Peak Containment Pressure Calculation Resulted in Greater Value than Internal Pressure of 15 Psig.Emergency Procedure for Nd Spray Initiation Revised

LER-1985-023, :on 851211 Re Emergency Svc Water Sys Seismic Concerns.Caused by Original Design Error.Procedures Used to Determine Pump Operability Revised to Change Min Acceptable Flow Rate & Engineering Evaluation Performed
type: Subject
label: 05000219/LER-1985-023, :on 851211 Re Emergency Svc Water Sys Seismic Concerns.Caused by Original Design Error.Procedures Used to Determine Pump Operability Revised to Change Min Acceptable Flow Rate & Engineering Evaluation Performed
page: https://kanterella.com/05000219/LER-2D1985-2D023-2C_-3Aon_851211_Re_Emergency_Svc_Water_Sys_Seismic_Concerns.Caused_by_Original_Design_Error.Procedures_Used_to_Determine_Pump_Operability_Revised_to_Ch…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000219/LER-1985-023, :on 851211 Re Emergency Svc Water Sys Seismic Concerns.Caused by Original Design Error.Procedures Used to Determine Pump Operability Revised to Change Min Acceptable Flow Rate & Engineering Evaluation Performed

LER-1985-013, :on 850609,main Feedwater Pump 1 Tripped on Overspeed Due to Control Problem.Reactor Also Tripped on High RCS Pressure Because of Inadequate Feedwater.Corrective Actions Not Yet Determined
type: Subject
label: 05000346/LER-1985-013, :on 850609,main Feedwater Pump 1 Tripped on Overspeed Due to Control Problem.Reactor Also Tripped on High RCS Pressure Because of Inadequate Feedwater.Corrective Actions Not Yet Determined
page: https://kanterella.com/05000346/LER-2D1985-2D013-2C_-3Aon_850609-2Cmain_Feedwater_Pump_1_Tripped_on_Overspeed_Due_to_Control_Problem.Reactor_Also_Tripped_on_High_RCS_Pressure_Because_of_Inadequate_Fee…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000346/LER-1985-013, :on 850609,main Feedwater Pump 1 Tripped on Overspeed Due to Control Problem.Reactor Also Tripped on High RCS Pressure Because of Inadequate Feedwater.Corrective Actions Not Yet Determined

LER-1985-021, :on 850612,plant Personnel Determined That Fire Protection Valve Cycling Procedures Could Make Valves Inaccessible During Operations to Be Cycled Once Every 18 Months Rather than Every 12 Months
type: Subject
label: 05000321/LER-1985-021, :on 850612,plant Personnel Determined That Fire Protection Valve Cycling Procedures Could Make Valves Inaccessible During Operations to Be Cycled Once Every 18 Months Rather than Every 12 Months
page: https://kanterella.com/05000321/LER-2D1985-2D021-2C_-3Aon_850612-2Cplant_Personnel_Determined_That_Fire_Protection_Valve_Cycling_Procedures_Could_Make_Valves_Inaccessible_During_Operations_to_Be_Cycle…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000321/LER-1985-021, :on 850612,plant Personnel Determined That Fire Protection Valve Cycling Procedures Could Make Valves Inaccessible During Operations to Be Cycled Once Every 18 Months Rather than Every 12 Months

LER-1985-011, :on 850401,main Steam Line Monitor B High Trip Setpoint Set at 3.2 Times Full Power Background.Caused by Personnel Communication Error.Setpoint Data Will Be Retrieved in Person Rather than Via Telephone
type: Subject
label: 05000366/LER-1985-011, :on 850401,main Steam Line Monitor B High Trip Setpoint Set at 3.2 Times Full Power Background.Caused by Personnel Communication Error.Setpoint Data Will Be Retrieved in Person Rather than Via Telephone
page: https://kanterella.com/05000366/LER-2D1985-2D011-2C_-3Aon_850401-2Cmain_Steam_Line_Monitor_B_High_Trip_Setpoint_Set_at_3.2_Times_Full_Power_Background.Caused_by_Personnel_Communication_Error.Setpoint_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000366/LER-1985-011, :on 850401,main Steam Line Monitor B High Trip Setpoint Set at 3.2 Times Full Power Background.Caused by Personnel Communication Error.Setpoint Data Will Be Retrieved in Person Rather than Via Telephone

LER-1985-020, :on 850415,special Purpose Procedure Directing Implementation of Direct Conversion Reactor on Plant Standby Gas Treatment Sys in Violation of Tech Specs.Caused by Inadequate Technical Review of Procedures
type: Subject
label: 05000321/LER-1985-020, :on 850415,special Purpose Procedure Directing Implementation of Direct Conversion Reactor on Plant Standby Gas Treatment Sys in Violation of Tech Specs.Caused by Inadequate Technical Review of Procedures
page: https://kanterella.com/05000321/LER-2D1985-2D020-2C_-3Aon_850415-2Cspecial_Purpose_Procedure_Directing_Implementation_of_Direct_Conversion_Reactor_on_Plant_Standby_Gas_Treatment_Sys_in_Violation_of_Te…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000321/LER-1985-020, :on 850415,special Purpose Procedure Directing Implementation of Direct Conversion Reactor on Plant Standby Gas Treatment Sys in Violation of Tech Specs.Caused by Inadequate Technical Review of Procedures

LER-1985-004, :on 850328,depth of Compacted Backfill Over Svc Water Sys Supply & Return Piping Between Svc Water Pumphouse & Safeguards Area Determined Less than 6 Ft Required for Tornado Missile Protection
type: Subject
label: 05000338/LER-1985-004, :on 850328,depth of Compacted Backfill Over Svc Water Sys Supply & Return Piping Between Svc Water Pumphouse & Safeguards Area Determined Less than 6 Ft Required for Tornado Missile Protection
page: https://kanterella.com/05000338/LER-2D1985-2D004-2C_-3Aon_850328-2Cdepth_of_Compacted_Backfill_Over_Svc_Water_Sys_Supply_-26_Return_Piping_Between_Svc_Water_Pumphouse_-26_Safeguards_Area_Determined_Le…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000338/LER-1985-004, :on 850328,depth of Compacted Backfill Over Svc Water Sys Supply & Return Piping Between Svc Water Pumphouse & Safeguards Area Determined Less than 6 Ft Required for Tornado Missile Protection

LER-1985-004-02, :on 850328,determined That Compacted Backfill Depth Over Svc Water Sys Supply & Return Piping Did Not Meet 6-ft Min Limit Required for Tornado Missile Protection. Cause Not Stated.Depth Corrected on 850329
type: Subject
label: 05000338/LER-1985-004-02, :on 850328,determined That Compacted Backfill Depth Over Svc Water Sys Supply & Return Piping Did Not Meet 6-ft Min Limit Required for Tornado Missile Protection. Cause Not Stated.Depth Corrected on 850329
page: https://kanterella.com/05000338/LER-2D1985-2D004-2D02-2C_-3Aon_850328-2Cdetermined_That_Compacted_Backfill_Depth_Over_Svc_Water_Sys_Supply_-26_Return_Piping_Did_Not_Meet_6-2Dft_Min_Limit_Required_for_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000338/LER-1985-004-02, :on 850328,determined That Compacted Backfill Depth Over Svc Water Sys Supply & Return Piping Did Not Meet 6-ft Min Limit Required for Tornado Missile Protection. Cause Not Stated.Depth Corrected on 850329

LER-1984-009-01, :on 840922,secondary Containment Integrity Degraded While Contractor Personnel Opened Both Doors of Reactor Bldg Personnel Access Airlock to Transport Pipe. Caused by Personnel Error.Personnel Counseled
type: Subject
label: 05000219/LER-1984-009-01, :on 840922,secondary Containment Integrity Degraded While Contractor Personnel Opened Both Doors of Reactor Bldg Personnel Access Airlock to Transport Pipe. Caused by Personnel Error.Personnel Counseled
page: https://kanterella.com/05000219/LER-2D1984-2D009-2D01-2C_-3Aon_840922-2Csecondary_Containment_Integrity_Degraded_While_Contractor_Personnel_Opened_Both_Doors_of_Reactor_Bldg_Personnel_Access_Airlock_t…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000219/LER-1984-009-01, :on 840922,secondary Containment Integrity Degraded While Contractor Personnel Opened Both Doors of Reactor Bldg Personnel Access Airlock to Transport Pipe. Caused by Personnel Error.Personnel Counseled

Shift Personnel
type: Subject
label: 05000237/LER-1985-009-04, :on 850221,standby Liquid Control Pump Taken Out of Svc & Required Operability Test for Redundant Pump 2B Not Performed Until 850223.Caused by Inadvertent Dept Oversight.Event Discussed W/Shift Personnel
page: https://kanterella.com/05000237/LER-2D1985-2D009-2D04-2C_-3Aon_850221-2Cstandby_Liquid_Control_Pump_Taken_Out_of_Svc_-26_Required_Operability_Test_for_Redundant_Pump_2B_Not_Performed_Until_850223.Caus…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000237/LER-1985-009-04, :on 850221,standby Liquid Control Pump Taken Out of Svc & Required Operability Test for Redundant Pump 2B Not Performed Until 850223.Caused by Inadvertent Dept Oversight.Event Discussed W/Shift Personnel

Lpci Pump Min Flow Valves Could Result in Failure of Pump.Caused by Improper Positioning of RHR Valves.Valve Position Changed to Open
type: Subject
label: 05000333/LER-1992-012, :on 920224,determined That Normal Closed Position of Rhr/Lpci Pump Min Flow Valves Could Result in Failure of Pump.Caused by Improper Positioning of RHR Valves.Valve Position Changed to Open
page: https://kanterella.com/05000333/LER-2D1992-2D012-2C_-3Aon_920224-2Cdetermined_That_Normal_Closed_Position_of_Rhr/Lpci_Pump_Min_Flow_Valves_Could_Result_in_Failure_of_Pump.Caused_by_Improper_Positionin…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000333/LER-1992-012, :on 920224,determined That Normal Closed Position of Rhr/Lpci Pump Min Flow Valves Could Result in Failure of Pump.Caused by Improper Positioning of RHR Valves.Valve Position Changed to Open

Component Cooling Water Sys HX Delta P.Caused by Wiring Sys Using Same Fuse Circuits
type: Subject
label: 05000237/LER-1984-007-06, :on 840628,during Hot Standby,Fuse 2330-702 Removed,Causing Loss of Automatic Control for Lpci/Component Cooling Water Sys HX Delta P.Caused by Wiring Sys Using Same Fuse Circuits
page: https://kanterella.com/05000237/LER-2D1984-2D007-2D06-2C_-3Aon_840628-2Cduring_Hot_Standby-2CFuse_2330-2D702_Removed-2CCausing_Loss_of_Automatic_Control_for_Lpci/Component_Cooling_Water_Sys_HX_Delta_P…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000237/LER-1984-007-06, :on 840628,during Hot Standby,Fuse 2330-702 Removed,Causing Loss of Automatic Control for Lpci/Component Cooling Water Sys HX Delta P.Caused by Wiring Sys Using Same Fuse Circuits

05000336/LER-1995-021, :on 950517,design Error Confirmed to Be Present in Esas.Caused by ESAS Design Deficiency.Delay Circuit Installed on SIAS Actuation Module Relay Output
type: Subject
page: https://kanterella.com/05000336/LER-2D1995-2D021-2C_-3Aon_950517-2Cdesign_Error_Confirmed_to_Be_Present_in_Esas.Caused_by_ESAS_Design_Deficiency.Delay_Circuit_Installed_on_SIAS_Actuation_Module_Relay_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000336/LER-1995-021, :on 950517,design Error Confirmed to Be Present in Esas.Caused by ESAS Design Deficiency.Delay Circuit Installed on SIAS Actuation Module Relay Output

LER-1984-001, :on 840103,hydrogen Dioxide Analyzers in Containment Atmosphere Monitoring Sys Inoperable.Caused by Design Deficiency.Catalyst Will Be Replaced on 840201 for Unit 1 & on 840215 for Unit 2
type: Subject
label: 05000387/LER-1984-001, :on 840103,hydrogen Dioxide Analyzers in Containment Atmosphere Monitoring Sys Inoperable.Caused by Design Deficiency.Catalyst Will Be Replaced on 840201 for Unit 1 & on 840215 for Unit 2
page: https://kanterella.com/05000387/LER-2D1984-2D001-2C_-3Aon_840103-2Chydrogen_Dioxide_Analyzers_in_Containment_Atmosphere_Monitoring_Sys_Inoperable.Caused_by_Design_Deficiency.Catalyst_Will_Be_Replaced_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000387/LER-1984-001, :on 840103,hydrogen Dioxide Analyzers in Containment Atmosphere Monitoring Sys Inoperable.Caused by Design Deficiency.Catalyst Will Be Replaced on 840201 for Unit 1 & on 840215 for Unit 2

05000327/LER-1994-017, :on 941222,B-train Abi & Start of B-train Abgst Occurred as Result of High Radiation in Spent Fuel Area.Personnel Involved W/Spent Fuel Pool Rack Replacement Briefed on Event
type: Subject
page: https://kanterella.com/05000327/LER-2D1994-2D017-2C_-3Aon_941222-2CB-2Dtrain_Abi_-26_Start_of_B-2Dtrain_Abgst_Occurred_as_Result_of_High_Radiation_in_Spent_Fuel_Area.Personnel_Involved_W/Spent_Fuel_Po…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000327/LER-1994-017, :on 941222,B-train Abi & Start of B-train Abgst Occurred as Result of High Radiation in Spent Fuel Area.Personnel Involved W/Spent Fuel Pool Rack Replacement Briefed on Event

05000336/LER-1994-018-01, :on 940602,filter Fans Crac Appeared to Be Feeding Opposite Supply Train.Caused by Incorrect Installation of Crac Sys.Plant Design Change 2 Was Implemented on 940605
type: Subject
page: https://kanterella.com/05000336/LER-2D1994-2D018-2D01-2C_-3Aon_940602-2Cfilter_Fans_Crac_Appeared_to_Be_Feeding_Opposite_Supply_Train.Caused_by_Incorrect_Installation_of_Crac_Sys.Plant_Design_Change_2…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000336/LER-1994-018-01, :on 940602,filter Fans Crac Appeared to Be Feeding Opposite Supply Train.Caused by Incorrect Installation of Crac Sys.Plant Design Change 2 Was Implemented on 940605

Peak Cladding Temp Acceptance Limit Noted.Caused by Human Error.Util Committed to Reduced Height Dependent Heat Flux Hot Channel Factor Limit
type: Subject
label: 05000266/LER-1990-007, :on 900712,error Indicating Potential for Failure to Comply W/Peak Cladding Temp Acceptance Limit Noted.Caused by Human Error.Util Committed to Reduced Height Dependent Heat Flux Hot Channel Factor Limit
page: https://kanterella.com/05000266/LER-2D1990-2D007-2C_-3Aon_900712-2Cerror_Indicating_Potential_for_Failure_to_Comply_W/Peak_Cladding_Temp_Acceptance_Limit_Noted.Caused_by_Human_Error.Util_Committed_to_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000266/LER-1990-007, :on 900712,error Indicating Potential for Failure to Comply W/Peak Cladding Temp Acceptance Limit Noted.Caused by Human Error.Util Committed to Reduced Height Dependent Heat Flux Hot Channel Factor Limit

LER-1990-005-02, :on 900503,identified Potential for High Energy Line Break in Auxiliary Steam Sys That Could Degrade Plant Areas Determined as Mild Environs.Probably Caused by Incorrect Conclusions from Analysis in 1973
type: Subject
label: 05000336/LER-1990-005-02, :on 900503,identified Potential for High Energy Line Break in Auxiliary Steam Sys That Could Degrade Plant Areas Determined as Mild Environs.Probably Caused by Incorrect Conclusions from Analysis in 1973
page: https://kanterella.com/05000336/LER-2D1990-2D005-2D02-2C_-3Aon_900503-2Cidentified_Potential_for_High_Energy_Line_Break_in_Auxiliary_Steam_Sys_That_Could_Degrade_Plant_Areas_Determined_as_Mild_Environ…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000336/LER-1990-005-02, :on 900503,identified Potential for High Energy Line Break in Auxiliary Steam Sys That Could Degrade Plant Areas Determined as Mild Environs.Probably Caused by Incorrect Conclusions from Analysis in 1973

LER-1990-003, :on 900409,determined That Piping & Supports in Fuel Oil Pumphouse Could Not Be Demonstrated to Perform Support Functions.Caused by Design Base Not Sufficiently Documented.Mod Performed to Support Fuel Oil Piping
type: Subject
label: 05000266/LER-1990-003, :on 900409,determined That Piping & Supports in Fuel Oil Pumphouse Could Not Be Demonstrated to Perform Support Functions.Caused by Design Base Not Sufficiently Documented.Mod Performed to Support Fuel Oil Piping
page: https://kanterella.com/05000266/LER-2D1990-2D003-2C_-3Aon_900409-2Cdetermined_That_Piping_-26_Supports_in_Fuel_Oil_Pumphouse_Could_Not_Be_Demonstrated_to_Perform_Support_Functions.Caused_by_Design_Bas…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000266/LER-1990-003, :on 900409,determined That Piping & Supports in Fuel Oil Pumphouse Could Not Be Demonstrated to Perform Support Functions.Caused by Design Base Not Sufficiently Documented.Mod Performed to Support Fuel Oil Piping

LER-1991-010-01, Forwards LER 91-010-01,reactor Protection Sys Pressure Switches Experiencing Setpoint Drift.Util Considered Event Reportable to NRC Per 10CFR50.73(a)(2)(vi) as Potential Generic Problem
type: Subject
label: 05000155/LER-1991-010-01, Forwards LER 91-010-01,reactor Protection Sys Pressure Switches Experiencing Setpoint Drift.Util Considered Event Reportable to NRC Per 10CFR50.73(a)(2)(vi) as Potential Generic Problem
page: https://kanterella.com/05000155/LER-2D1991-2D010-2D01-2C_Forwards_LER_91-2D010-2D01-2Creactor_Protection_Sys_Pressure_Switches_Experiencing_Setpoint_Drift.Util_Considered_Event_Reportable_to_NRC_Per_1…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000155/LER-1991-010-01, Forwards LER 91-010-01,reactor Protection Sys Pressure Switches Experiencing Setpoint Drift.Util Considered Event Reportable to NRC Per 10CFR50.73(a)(2)(vi) as Potential Generic Problem

Plant Procedure
type: Subject
label: 05000155/LER-1991-010, :on 911215,two Out of Four Reactor Pressure Switches Were Found to Be out-of-tolerance High.Caused by Aging & Corrosion Experienced by Instrumentation.Switches Were Recalibrated in Accordance W/Plant Procedure
page: https://kanterella.com/05000155/LER-2D1991-2D010-2C_-3Aon_911215-2Ctwo_Out_of_Four_Reactor_Pressure_Switches_Were_Found_to_Be_out-2Dof-2Dtolerance_High.Caused_by_Aging_-26_Corrosion_Experienced_by_Ins…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000155/LER-1991-010, :on 911215,two Out of Four Reactor Pressure Switches Were Found to Be out-of-tolerance High.Caused by Aging & Corrosion Experienced by Instrumentation.Switches Were Recalibrated in Accordance W/Plant Procedure

LER-1989-009-01, :on 891115,unexpected Steam Generator a lo-lo Level & Steam Generator B lo-lo Level Reactor Trip Signals Experienced.Caused by Installation of Analog Signal Generator.Procedures Revised
type: Subject
label: 05000301/LER-1989-009-01, :on 891115,unexpected Steam Generator a lo-lo Level & Steam Generator B lo-lo Level Reactor Trip Signals Experienced.Caused by Installation of Analog Signal Generator.Procedures Revised
page: https://kanterella.com/05000301/LER-2D1989-2D009-2D01-2C_-3Aon_891115-2Cunexpected_Steam_Generator_a_lo-2Dlo_Level_-26_Steam_Generator_B_lo-2Dlo_Level_Reactor_Trip_Signals_Experienced.Caused_by_Instal…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000301/LER-1989-009-01, :on 891115,unexpected Steam Generator a lo-lo Level & Steam Generator B lo-lo Level Reactor Trip Signals Experienced.Caused by Installation of Analog Signal Generator.Procedures Revised

10CFR50,App R Found Inadequacies Re RHR Room Coolers & Control Cablings.Caused by Inadequate Design Review.Design Change Mods Being Made
type: Subject
label: 05000311/LER-1987-009, :on 871125,util Task Force Examining Compliance w/10CFR50,App R Found Inadequacies Re RHR Room Coolers & Control Cablings.Caused by Inadequate Design Review.Design Change Mods Being Made
page: https://kanterella.com/05000311/LER-2D1987-2D009-2C_-3Aon_871125-2Cutil_Task_Force_Examining_Compliance_w/10CFR50-2CApp_R_Found_Inadequacies_Re_RHR_Room_Coolers_-26_Control_Cablings.Caused_by_Inadequa…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000311/LER-1987-009, :on 871125,util Task Force Examining Compliance w/10CFR50,App R Found Inadequacies Re RHR Room Coolers & Control Cablings.Caused by Inadequate Design Review.Design Change Mods Being Made

LER-1987-009-01, :on 870619,svc Water Sys Cabling Deficiency Discoverd.On 870625,nonseismically Qualified Marinite Walls Discovered.Caused by Inadequate Design Review & Documentation.Walls Reinforced
type: Subject
label: 05000311/LER-1987-009-01, :on 870619,svc Water Sys Cabling Deficiency Discoverd.On 870625,nonseismically Qualified Marinite Walls Discovered.Caused by Inadequate Design Review & Documentation.Walls Reinforced
page: https://kanterella.com/05000311/LER-2D1987-2D009-2D01-2C_-3Aon_870619-2Csvc_Water_Sys_Cabling_Deficiency_Discoverd.On_870625-2Cnonseismically_Qualified_Marinite_Walls_Discovered.Caused_by_Inadequate_D…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000311/LER-1987-009-01, :on 870619,svc Water Sys Cabling Deficiency Discoverd.On 870625,nonseismically Qualified Marinite Walls Discovered.Caused by Inadequate Design Review & Documentation.Walls Reinforced

LER-1989-019, :on 890731,determined That Boron Dilution Incident Not Bounding for Recently Hypothesized Event.Caused by Vendor & Plant Personnel Preparing Analyses Unaware of Flow Path.Operating Procedures Being Revised
type: Subject
label: 05000255/LER-1989-019, :on 890731,determined That Boron Dilution Incident Not Bounding for Recently Hypothesized Event.Caused by Vendor & Plant Personnel Preparing Analyses Unaware of Flow Path.Operating Procedures Being Revised
page: https://kanterella.com/05000255/LER-2D1989-2D019-2C_-3Aon_890731-2Cdetermined_That_Boron_Dilution_Incident_Not_Bounding_for_Recently_Hypothesized_Event.Caused_by_Vendor_-26_Plant_Personnel_Preparing_A…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000255/LER-1989-019, :on 890731,determined That Boron Dilution Incident Not Bounding for Recently Hypothesized Event.Caused by Vendor & Plant Personnel Preparing Analyses Unaware of Flow Path.Operating Procedures Being Revised

LER-1988-013, :on 880822,control Room HVAC Sys Declared Inoperable for Failing to Meet Tech Spec Criteria.Caused by Open Electrical Penetrations in Control Room Floor.Tech Spec Test RO-28 Revised to Correct Fan line-up
type: Subject
label: 05000255/LER-1988-013, :on 880822,control Room HVAC Sys Declared Inoperable for Failing to Meet Tech Spec Criteria.Caused by Open Electrical Penetrations in Control Room Floor.Tech Spec Test RO-28 Revised to Correct Fan line-up
page: https://kanterella.com/05000255/LER-2D1988-2D013-2C_-3Aon_880822-2Ccontrol_Room_HVAC_Sys_Declared_Inoperable_for_Failing_to_Meet_Tech_Spec_Criteria.Caused_by_Open_Electrical_Penetrations_in_Control_Ro…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000255/LER-1988-013, :on 880822,control Room HVAC Sys Declared Inoperable for Failing to Meet Tech Spec Criteria.Caused by Open Electrical Penetrations in Control Room Floor.Tech Spec Test RO-28 Revised to Correct Fan line-up

LER-1997-005-02, :on 970824,LCO Was Not Entered When Valve Was Malfunctioning.Caused by Lack of Questioning Attitude by Operations Crew.Involved SROs Were Counseled & Problem Evaluation Rept Will Be Discussed
type: Subject
label: 05000296/LER-1997-005-02, :on 970824,LCO Was Not Entered When Valve Was Malfunctioning.Caused by Lack of Questioning Attitude by Operations Crew.Involved SROs Were Counseled & Problem Evaluation Rept Will Be Discussed
page: https://kanterella.com/05000296/LER-2D1997-2D005-2D02-2C_-3Aon_970824-2CLCO_Was_Not_Entered_When_Valve_Was_Malfunctioning.Caused_by_Lack_of_Questioning_Attitude_by_Operations_Crew.Involved_SROs_Were_C…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000296/LER-1997-005-02, :on 970824,LCO Was Not Entered When Valve Was Malfunctioning.Caused by Lack of Questioning Attitude by Operations Crew.Involved SROs Were Counseled & Problem Evaluation Rept Will Be Discussed

LER-1992-003-04, :on 921027,discovered Failure of Reactor Zone Isolation Dampers to Close.Caused by Failed Solenoid Operated Valve.Outboard Damper Manually Closed by Isolating Air Supply & Bleeding Air Off Damper
type: Subject
label: 05000296/LER-1992-003-04, :on 921027,discovered Failure of Reactor Zone Isolation Dampers to Close.Caused by Failed Solenoid Operated Valve.Outboard Damper Manually Closed by Isolating Air Supply & Bleeding Air Off Damper
page: https://kanterella.com/05000296/LER-2D1992-2D003-2D04-2C_-3Aon_921027-2Cdiscovered_Failure_of_Reactor_Zone_Isolation_Dampers_to_Close.Caused_by_Failed_Solenoid_Operated_Valve.Outboard_Damper_Manually_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000296/LER-1992-003-04, :on 921027,discovered Failure of Reactor Zone Isolation Dampers to Close.Caused by Failed Solenoid Operated Valve.Outboard Damper Manually Closed by Isolating Air Supply & Bleeding Air Off Damper

LER-1990-015, :on 900524,concluded from Evaluation That Failure of Microswitch Contacts Could Prohibit Proper Sequencer Response to Safety Injection & Loss of Offsite Power Signals.Caused by Design Deficiency
type: Subject
label: 05000400/LER-1990-015, :on 900524,concluded from Evaluation That Failure of Microswitch Contacts Could Prohibit Proper Sequencer Response to Safety Injection & Loss of Offsite Power Signals.Caused by Design Deficiency
page: https://kanterella.com/05000400/LER-2D1990-2D015-2C_-3Aon_900524-2Cconcluded_from_Evaluation_That_Failure_of_Microswitch_Contacts_Could_Prohibit_Proper_Sequencer_Response_to_Safety_Injection_-26_Loss_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000400/LER-1990-015, :on 900524,concluded from Evaluation That Failure of Microswitch Contacts Could Prohibit Proper Sequencer Response to Safety Injection & Loss of Offsite Power Signals.Caused by Design Deficiency

LER-1993-003, :on 930116,discovered That Manual Discharge Valves of Both Trains of Containment Spray Sys Isolated While in Mode 4.Caused by Communication Errors.Night Order Issued Re Proper Procedure Use
type: Subject
label: 05000250/LER-1993-003, :on 930116,discovered That Manual Discharge Valves of Both Trains of Containment Spray Sys Isolated While in Mode 4.Caused by Communication Errors.Night Order Issued Re Proper Procedure Use
page: https://kanterella.com/05000250/LER-2D1993-2D003-2C_-3Aon_930116-2Cdiscovered_That_Manual_Discharge_Valves_of_Both_Trains_of_Containment_Spray_Sys_Isolated_While_in_Mode_4.Caused_by_Communication_Erro…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000250/LER-1993-003, :on 930116,discovered That Manual Discharge Valves of Both Trains of Containment Spray Sys Isolated While in Mode 4.Caused by Communication Errors.Night Order Issued Re Proper Procedure Use

Tripping of All Four Reactor Coolant Pump Breakers Occurred. Cause Not Determined.Logic Card Replaced
type: Subject
label: 05000315/LER-1988-013, :on 881123,spurious ESF Actuation (Reactor Trip) from Loss or Reactor Flow Logic Circuit Concurrent W/ Tripping of All Four Reactor Coolant Pump Breakers Occurred. Cause Not Determined.Logic Card Replaced
page: https://kanterella.com/05000315/LER-2D1988-2D013-2C_-3Aon_881123-2Cspurious_ESF_Actuation_-28Reactor_Trip-29_from_Loss_or_Reactor_Flow_Logic_Circuit_Concurrent_W/_Tripping_of_All_Four_Reactor_Coolant_…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000315/LER-1988-013, :on 881123,spurious ESF Actuation (Reactor Trip) from Loss or Reactor Flow Logic Circuit Concurrent W/ Tripping of All Four Reactor Coolant Pump Breakers Occurred. Cause Not Determined.Logic Card Replaced

Operators
type: Subject
label: 05000315/LER-1989-015-01, :on 891128,pyralarm Fire Detection Zone 3 Made Inoperable When Welding in Laundry Room Caused Standing Alarm.Fire Watch Patrol Not Assigned within 1 H.Caused by Personnel Error.Event Reviewed W/Operators
page: https://kanterella.com/05000315/LER-2D1989-2D015-2D01-2C_-3Aon_891128-2Cpyralarm_Fire_Detection_Zone_3_Made_Inoperable_When_Welding_in_Laundry_Room_Caused_Standing_Alarm.Fire_Watch_Patrol_Not_Assigned…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000315/LER-1989-015-01, :on 891128,pyralarm Fire Detection Zone 3 Made Inoperable When Welding in Laundry Room Caused Standing Alarm.Fire Watch Patrol Not Assigned within 1 H.Caused by Personnel Error.Event Reviewed W/Operators

05000293/LER-2015-010, Regarding Motor-Operated Valve Control Circuit Vulnerability to Information Notice 92-18 Concern
type: Subject
page: https://kanterella.com/05000293/LER-2D2015-2D010-2C_Regarding_Motor-2DOperated_Valve_Control_Circuit_Vulnerability_to_Information_Notice_92-2D18_Concern
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000293/LER-2015-010, Regarding Motor-Operated Valve Control Circuit Vulnerability to Information Notice 92-18 Concern

05000280/LER-2015-001, Regarding Inadequate Missile Protection Due to Failure to Procedurally Control Sliding Missile Shields
type: Subject
page: https://kanterella.com/05000280/LER-2D2015-2D001-2C_Regarding_Inadequate_Missile_Protection_Due_to_Failure_to_Procedurally_Control_Sliding_Missile_Shields
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000280/LER-2015-001, Regarding Inadequate Missile Protection Due to Failure to Procedurally Control Sliding Missile Shields

05000455/LER-2011-001, Regarding Emergency Diesel Generator Inoperable for Longer than Allowed by Technical Specifications Due to Inadequate Work
type: Subject
page: https://kanterella.com/05000455/LER-2D2011-2D001-2C_Regarding_Emergency_Diesel_Generator_Inoperable_for_Longer_than_Allowed_by_Technical_Specifications_Due_to_Inadequate_Work
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000455/LER-2011-001, Regarding Emergency Diesel Generator Inoperable for Longer than Allowed by Technical Specifications Due to Inadequate Work

05000482/LER-2010-001, For Wolf Creek, Regarding Automatic Start of Motor Driven Auxiliary Feedwater Pumps Inoperable During Startup in Mode 1
type: Subject
page: https://kanterella.com/05000482/LER-2D2010-2D001-2C_For_Wolf_Creek-2C_Regarding_Automatic_Start_of_Motor_Driven_Auxiliary_Feedwater_Pumps_Inoperable_During_Startup_in_Mode_1
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000482/LER-2010-001, For Wolf Creek, Regarding Automatic Start of Motor Driven Auxiliary Feedwater Pumps Inoperable During Startup in Mode 1

05000286/LER-2008-002, Regarding Loss of Single Train 31 Pressurizer Backup Heater Bank Required to Function to Shutdown and Maintain the Reactor in a Safe Condition Remote from Control Room
type: Subject
page: https://kanterella.com/05000286/LER-2D2008-2D002-2C_Regarding_Loss_of_Single_Train_31_Pressurizer_Backup_Heater_Bank_Required_to_Function_to_Shutdown_and_Maintain_the_Reactor_in_a_Safe_Condition_Remot…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000286/LER-2008-002, Regarding Loss of Single Train 31 Pressurizer Backup Heater Bank Required to Function to Shutdown and Maintain the Reactor in a Safe Condition Remote from Control Room

05000305/LER-2007-008, Inadequate Emergency Diesel Generator Testing When Redundant Emergency Diesel Generator Was Inoperable
type: Subject
page: https://kanterella.com/05000305/LER-2D2007-2D008-2C_Inadequate_Emergency_Diesel_Generator_Testing_When_Redundant_Emergency_Diesel_Generator_Was_Inoperable
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000305/LER-2007-008, Inadequate Emergency Diesel Generator Testing When Redundant Emergency Diesel Generator Was Inoperable

05000305/LER-2005-014-01, Re Technical Specification LCO Not Entered for Diesel Generators Inoperable While in Refueling Shutdown
type: Subject
page: https://kanterella.com/05000305/LER-2D2005-2D014-2D01-2C_Re_Technical_Specification_LCO_Not_Entered_for_Diesel_Generators_Inoperable_While_in_Refueling_Shutdown
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000305/LER-2005-014-01, Re Technical Specification LCO Not Entered for Diesel Generators Inoperable While in Refueling Shutdown

05000305/LER-2005-011, Re the Setting of a Permissive (P-10) in the Power Range Channels of the Nuclear Instrumentation System Was Outside of Plant Technical Specification Requirements
type: Subject
page: https://kanterella.com/05000305/LER-2D2005-2D011-2C_Re_the_Setting_of_a_Permissive_-28P-2D10-29_in_the_Power_Range_Channels_of_the_Nuclear_Instrumentation_System_Was_Outside_of_Plant_Technical_Specifi…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000305/LER-2005-011, Re the Setting of a Permissive (P-10) in the Power Range Channels of the Nuclear Instrumentation System Was Outside of Plant Technical Specification Requirements

05000301/LER-2005-001, Regarding Main Steam Safety Valve 2MS-02008 Lift Set Point Exceeds Acceptance Criteria
type: Subject
page: https://kanterella.com/05000301/LER-2D2005-2D001-2C_Regarding_Main_Steam_Safety_Valve_2MS-2D02008_Lift_Set_Point_Exceeds_Acceptance_Criteria
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000301/LER-2005-001, Regarding Main Steam Safety Valve 2MS-02008 Lift Set Point Exceeds Acceptance Criteria

05000285/LER-2005-001, Re Unplanned Reactor Trip Due to a Feedwater Transient at Low Power During Plant Shutdown
type: Subject
page: https://kanterella.com/05000285/LER-2D2005-2D001-2C_Re_Unplanned_Reactor_Trip_Due_to_a_Feedwater_Transient_at_Low_Power_During_Plant_Shutdown
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000285/LER-2005-001, Re Unplanned Reactor Trip Due to a Feedwater Transient at Low Power During Plant Shutdown

05000289/LER-2004-001, High Pressure Injection Pump Seismic Qualification Impacted Due to an Oversight in the Design Process When Power Supplies for the Auxiliary Oil Pumps Were Relocated
type: Subject
page: https://kanterella.com/05000289/LER-2D2004-2D001-2C_High_Pressure_Injection_Pump_Seismic_Qualification_Impacted_Due_to_an_Oversight_in_the_Design_Process_When_Power_Supplies_for_the_Auxiliary_Oil_Pump…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000289/LER-2004-001, High Pressure Injection Pump Seismic Qualification Impacted Due to an Oversight in the Design Process When Power Supplies for the Auxiliary Oil Pumps Were Relocated

05000389/LER-2003-004, Regarding Condensate Pump Motor Bearing Failure That Resulted in Manual Reactor Trip
type: Subject
page: https://kanterella.com/05000389/LER-2D2003-2D004-2C_Regarding_Condensate_Pump_Motor_Bearing_Failure_That_Resulted_in_Manual_Reactor_Trip
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000389/LER-2003-004, Regarding Condensate Pump Motor Bearing Failure That Resulted in Manual Reactor Trip

05000301/LER-2003-005, Re Manual Reactor Trip and Manual Safety Injection Due to Pressurizer Low Level
type: Subject
page: https://kanterella.com/05000301/LER-2D2003-2D005-2C_Re_Manual_Reactor_Trip_and_Manual_Safety_Injection_Due_to_Pressurizer_Low_Level
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000301/LER-2003-005, Re Manual Reactor Trip and Manual Safety Injection Due to Pressurizer Low Level

05000331/LER-2003-001, Manual Reactor Scram and Reactor Coolant Chemistry Excursion Due to Punctured Main Condenser Tube Caused by Failed Condenser Deflector Plate
type: Subject
page: https://kanterella.com/05000331/LER-2D2003-2D001-2C_Manual_Reactor_Scram_and_Reactor_Coolant_Chemistry_Excursion_Due_to_Punctured_Main_Condenser_Tube_Caused_by_Failed_Condenser_Deflector_Plate
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000331/LER-2003-001, Manual Reactor Scram and Reactor Coolant Chemistry Excursion Due to Punctured Main Condenser Tube Caused by Failed Condenser Deflector Plate

LER-1988-006, :on 880318,10CFR50 App R Cable Design Deficiency Identified.Caused by Design Error.Cable Will Be re-routed During Next Refueling Outage.Roving Fire Watch Will Be Continued Until Completion of Repair
type: Subject
label: 05000272/LER-1988-006, :on 880318,10CFR50 App R Cable Design Deficiency Identified.Caused by Design Error.Cable Will Be re-routed During Next Refueling Outage.Roving Fire Watch Will Be Continued Until Completion of Repair
page: https://kanterella.com/05000272/LER-2D1988-2D006-2C_-3Aon_880318-2C10CFR50_App_R_Cable_Design_Deficiency_Identified.Caused_by_Design_Error.Cable_Will_Be_re-2Drouted_During_Next_Refueling_Outage.Roving…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000272/LER-1988-006, :on 880318,10CFR50 App R Cable Design Deficiency Identified.Caused by Design Error.Cable Will Be re-routed During Next Refueling Outage.Roving Fire Watch Will Be Continued Until Completion of Repair

LER-1989-023, :on 891010,identified That U-bolt Connection Assembly for Main Steam Line Support Structure Exceeded Stress Allowed by FSAR by Approx 14-.Caused by Inadequate Review of Analyses by Vendor
type: Subject
label: 05000255/LER-1989-023, :on 891010,identified That U-bolt Connection Assembly for Main Steam Line Support Structure Exceeded Stress Allowed by FSAR by Approx 14%.Caused by Inadequate Review of Analyses by Vendor
page: https://kanterella.com/05000255/LER-2D1989-2D023-2C_-3Aon_891010-2Cidentified_That_U-2Dbolt_Connection_Assembly_for_Main_Steam_Line_Support_Structure_Exceeded_Stress_Allowed_by_FSAR_by_Approx_14-.Caus…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000255/LER-1989-023, :on 891010,identified That U-bolt Connection Assembly for Main Steam Line Support Structure Exceeded Stress Allowed by FSAR by Approx 14%.Caused by Inadequate Review of Analyses by Vendor

Operating Procedure.I&C Repaired Defective Unit & Surveillance Sp 2403C Performed
type: Subject
label: 05000336/LER-1994-022-01, :on 940620,second Analyzer Failed Surveillance Test.Caused by Timer Switch Left in Off Position in Accordance W/Operating Procedure.I&C Repaired Defective Unit & Surveillance Sp 2403C Performed
page: https://kanterella.com/05000336/LER-2D1994-2D022-2D01-2C_-3Aon_940620-2Csecond_Analyzer_Failed_Surveillance_Test.Caused_by_Timer_Switch_Left_in_Off_Position_in_Accordance_W/Operating_Procedure.I-26C_R…
wiki namespace: 0
wiki page content language: en
reporting criterion: 10 CFR 50.73(a)(2)(vi)
wiki page sort key: 05000336/LER-1994-022-01, :on 940620,second Analyzer Failed Surveillance Test.Caused by Timer Switch Left in Off Position in Accordance W/Operating Procedure.I&C Repaired Defective Unit & Surveillance Sp 2403C Performed

Reporting criterion
type: ObjectProperty
page: https://kanterella.com/Property-3AReporting_criterion
wiki namespace: 102
wiki page content language: en
wiki page sort key: Reporting criterion
type: wpg