NRC Form 308A
type: Ontology
creation date: 2025-12-07T18:07:54-05:00
imports: http://semantic-mediawiki.org/swivt/1.0

NRC Form 308A
type: Subject
page: https://kanterella.com/NRC_Form_308A
wiki namespace: 0
wiki page content language: en
wiki page sort key: NRC Form 308A

Application Requirements.Work Request Initiated
type: Subject
label: 05000327/LER-1989-007, :on 890319,train a Control Room Isolation Occurred.Caused by Incompatibility of Replacement Smoke Detector Unit Relay Contact Configuration W/Application Requirements.Work Request Initiated
page: https://kanterella.com/05000327/LER-2D1989-2D007-2C_-3Aon_890319-2Ctrain_a_Control_Room_Isolation_Occurred.Caused_by_Incompatibility_of_Replacement_Smoke_Detector_Unit_Relay_Contact_Configuration_W/Ap…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000327/LER-1989-007, :on 890319,train a Control Room Isolation Occurred.Caused by Incompatibility of Replacement Smoke Detector Unit Relay Contact Configuration W/Application Requirements.Work Request Initiated

LER-1998-016, :on 980730,failed to Meet TS Requirements for for RT Bypasses.Cause Not Determined Because of Age of condition.1E-4- Bistables for All for Channels of Excore Log Power Channels Were Declared Inoperable 980730
type: Subject
label: 05000382/LER-1998-016, :on 980730,failed to Meet TS Requirements for for RT Bypasses.Cause Not Determined Because of Age of condition.1E-4% Bistables for All for Channels of Excore Log Power Channels Were Declared Inoperable 980730
page: https://kanterella.com/05000382/LER-2D1998-2D016-2C_-3Aon_980730-2Cfailed_to_Meet_TS_Requirements_for_for_RT_Bypasses.Cause_Not_Determined_Because_of_Age_of_condition.1E-2D4-_Bistables_for_All_for_Cha…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1998-016, :on 980730,failed to Meet TS Requirements for for RT Bypasses.Cause Not Determined Because of Age of condition.1E-4% Bistables for All for Channels of Excore Log Power Channels Were Declared Inoperable 980730

LER-1987-040, :on 870622,containment Ventilation Isolation Occurred.Caused by Personnel Error.Engineering & Maint Personnel Counseled Re Cause of Incident & Provided Guidance to Avoid Repetition
type: Subject
label: 05000424/LER-1987-040, :on 870622,containment Ventilation Isolation Occurred.Caused by Personnel Error.Engineering & Maint Personnel Counseled Re Cause of Incident & Provided Guidance to Avoid Repetition
page: https://kanterella.com/05000424/LER-2D1987-2D040-2C_-3Aon_870622-2Ccontainment_Ventilation_Isolation_Occurred.Caused_by_Personnel_Error.Engineering_-26_Maint_Personnel_Counseled_Re_Cause_of_Incident_-…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000424/LER-1987-040, :on 870622,containment Ventilation Isolation Occurred.Caused by Personnel Error.Engineering & Maint Personnel Counseled Re Cause of Incident & Provided Guidance to Avoid Repetition

05000245/LER-1987-019-01, :on 870612,misorientation of Fuel Assembly Discovered.Caused by Failure to Load in Proper Orientation. Appropriate Core Verification Procedure Changes Being Implemented
type: Subject
page: https://kanterella.com/05000245/LER-2D1987-2D019-2D01-2C_-3Aon_870612-2Cmisorientation_of_Fuel_Assembly_Discovered.Caused_by_Failure_to_Load_in_Proper_Orientation._Appropriate_Core_Verification_Proced…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000245/LER-1987-019-01, :on 870612,misorientation of Fuel Assembly Discovered.Caused by Failure to Load in Proper Orientation. Appropriate Core Verification Procedure Changes Being Implemented

LER-1997-023, :on 970708,EDG Fuel Sys Surveillance Was Missed Due to Failure of Personnel to Determine Intended Start & End Dates for SR 4.8.1.1.2.h.2 Interval.Submitted Application for Emergency Amend for Removal of SR
type: Subject
label: 05000382/LER-1997-023, :on 970708,EDG Fuel Sys Surveillance Was Missed Due to Failure of Personnel to Determine Intended Start & End Dates for SR 4.8.1.1.2.h.2 Interval.Submitted Application for Emergency Amend for Removal of SR
page: https://kanterella.com/05000382/LER-2D1997-2D023-2C_-3Aon_970708-2CEDG_Fuel_Sys_Surveillance_Was_Missed_Due_to_Failure_of_Personnel_to_Determine_Intended_Start_-26_End_Dates_for_SR_4.8.1.1.2.h.2_Inter…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1997-023, :on 970708,EDG Fuel Sys Surveillance Was Missed Due to Failure of Personnel to Determine Intended Start & End Dates for SR 4.8.1.1.2.h.2 Interval.Submitted Application for Emergency Amend for Removal of SR

LER-1998-007, :on 980317,discovered That No Allowance for Instrument Loop Uncertainity Included in Surveillance for Chilled Water Outlet Temp.Caused by Failure to Consider Instrument Loop Uncertainty.Revised Task
type: Subject
label: 05000382/LER-1998-007, :on 980317,discovered That No Allowance for Instrument Loop Uncertainity Included in Surveillance for Chilled Water Outlet Temp.Caused by Failure to Consider Instrument Loop Uncertainty.Revised Task
page: https://kanterella.com/05000382/LER-2D1998-2D007-2C_-3Aon_980317-2Cdiscovered_That_No_Allowance_for_Instrument_Loop_Uncertainity_Included_in_Surveillance_for_Chilled_Water_Outlet_Temp.Caused_by_Failur…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1998-007, :on 980317,discovered That No Allowance for Instrument Loop Uncertainity Included in Surveillance for Chilled Water Outlet Temp.Caused by Failure to Consider Instrument Loop Uncertainty.Revised Task

Repairmen
type: Subject
label: 05000341/LER-1987-020, :on 870528,automatic Start of Div II Emergency Diesel Generators Occurred.Caused by Repairman Working within Wrong Cabinet During Surveillance.Personnel Counseled & Events Details Will Be Reviewed W/Repairmen
page: https://kanterella.com/05000341/LER-2D1987-2D020-2C_-3Aon_870528-2Cautomatic_Start_of_Div_II_Emergency_Diesel_Generators_Occurred.Caused_by_Repairman_Working_within_Wrong_Cabinet_During_Surveillance.P…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000341/LER-1987-020, :on 870528,automatic Start of Div II Emergency Diesel Generators Occurred.Caused by Repairman Working within Wrong Cabinet During Surveillance.Personnel Counseled & Events Details Will Be Reviewed W/Repairmen

LER-1998-005, :on 980312,missed Thermal Overload TS Surveillance Were Noted.Caused by Inadequate Review of 1992 Rev to TS 3.8.4.2 IAW GL 91-08.Thermal Overloads for 8 MOVs Were Subsequently Tested & Determined to Be Operable
type: Subject
label: 05000382/LER-1998-005, :on 980312,missed Thermal Overload TS Surveillance Were Noted.Caused by Inadequate Review of 1992 Rev to TS 3.8.4.2 IAW GL 91-08.Thermal Overloads for 8 MOVs Were Subsequently Tested & Determined to Be Operable
page: https://kanterella.com/05000382/LER-2D1998-2D005-2C_-3Aon_980312-2Cmissed_Thermal_Overload_TS_Surveillance_Were_Noted.Caused_by_Inadequate_Review_of_1992_Rev_to_TS_3.8.4.2_IAW_GL_91-2D08.Thermal_Overl…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1998-005, :on 980312,missed Thermal Overload TS Surveillance Were Noted.Caused by Inadequate Review of 1992 Rev to TS 3.8.4.2 IAW GL 91-08.Thermal Overloads for 8 MOVs Were Subsequently Tested & Determined to Be Operable

Shaft Seal Housings.Reduced Shaft Seal Leakages & Revised Procedure
type: Subject
label: 05000306/LER-1997-004-02, :on 970926,determined That Maint Airlock Volumetric Test Exceeded TS 4.4 Required Limit.Caused by Misalignment of Operating Mechanism Shafts W/Shaft Seal Housings.Reduced Shaft Seal Leakages & Revised Procedure
page: https://kanterella.com/05000306/LER-2D1997-2D004-2D02-2C_-3Aon_970926-2Cdetermined_That_Maint_Airlock_Volumetric_Test_Exceeded_TS_4.4_Required_Limit.Caused_by_Misalignment_of_Operating_Mechanism_Shaft…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000306/LER-1997-004-02, :on 970926,determined That Maint Airlock Volumetric Test Exceeded TS 4.4 Required Limit.Caused by Misalignment of Operating Mechanism Shafts W/Shaft Seal Housings.Reduced Shaft Seal Leakages & Revised Procedure

05000409/LER-1999-001, :on 990305,excessive back-flow Through Return Line Check Valve Was Noted.Check Valve Were Declared Inoperable.Compensatory Actions for Fesw Sys Pipe Break Were Established.With
type: Subject
page: https://kanterella.com/05000409/LER-2D1999-2D001-2C_-3Aon_990305-2Cexcessive_back-2Dflow_Through_Return_Line_Check_Valve_Was_Noted.Check_Valve_Were_Declared_Inoperable.Compensatory_Actions_for_Fesw_Sy…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000409/LER-1999-001, :on 990305,excessive back-flow Through Return Line Check Valve Was Noted.Check Valve Were Declared Inoperable.Compensatory Actions for Fesw Sys Pipe Break Were Established.With

LER-1986-008, :860401,monthly Channel Check for Steam Generator narrow-range Level Shutdown Instrumentation Not Properly Performed on SI-3 Logs.Caused by SI-3 Incorrectly Written for wide-range Level Instruments
type: Subject
label: 05000327/LER-1986-008, :860401,monthly Channel Check for Steam Generator narrow-range Level Shutdown Instrumentation Not Properly Performed on SI-3 Logs.Caused by SI-3 Incorrectly Written for wide-range Level Instruments
page: https://kanterella.com/05000327/LER-2D1986-2D008-2C_-3A860401-2Cmonthly_Channel_Check_for_Steam_Generator_narrow-2Drange_Level_Shutdown_Instrumentation_Not_Properly_Performed_on_SI-2D3_Logs.Caused_by_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000327/LER-1986-008, :860401,monthly Channel Check for Steam Generator narrow-range Level Shutdown Instrumentation Not Properly Performed on SI-3 Logs.Caused by SI-3 Incorrectly Written for wide-range Level Instruments

LER-1986-055, :on 860902,reactor Scram Occurred.Caused by Sudden Increase in Sensed Pressure for Steam Bypass Valves Controller.Pressure Regulators & Instrumentation Valve Lineups Recalibr,Procedures Revised & Mgt Directive Issued
type: Subject
label: 05000440/LER-1986-055, :on 860902,reactor Scram Occurred.Caused by Sudden Increase in Sensed Pressure for Steam Bypass Valves Controller.Pressure Regulators & Instrumentation Valve Lineups Recalibr,Procedures Revised & Mgt Directive Issued
page: https://kanterella.com/05000440/LER-2D1986-2D055-2C_-3Aon_860902-2Creactor_Scram_Occurred.Caused_by_Sudden_Increase_in_Sensed_Pressure_for_Steam_Bypass_Valves_Controller.Pressure_Regulators_-26_Instru…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000440/LER-1986-055, :on 860902,reactor Scram Occurred.Caused by Sudden Increase in Sensed Pressure for Steam Bypass Valves Controller.Pressure Regulators & Instrumentation Valve Lineups Recalibr,Procedures Revised & Mgt Directive Issued

LER-1998-017, :on 981015,TS SR on Standby Shutdown Sys Instrumentation Was Missed.Caused by Inadequate Change Mgt Process.Calibrated Affected Resistance Temp Detectors & Modified Procedure.With
type: Subject
label: 05000413/LER-1998-017, :on 981015,TS SR on Standby Shutdown Sys Instrumentation Was Missed.Caused by Inadequate Change Mgt Process.Calibrated Affected Resistance Temp Detectors & Modified Procedure.With
page: https://kanterella.com/05000413/LER-2D1998-2D017-2C_-3Aon_981015-2CTS_SR_on_Standby_Shutdown_Sys_Instrumentation_Was_Missed.Caused_by_Inadequate_Change_Mgt_Process.Calibrated_Affected_Resistance_Temp_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000413/LER-1998-017, :on 981015,TS SR on Standby Shutdown Sys Instrumentation Was Missed.Caused by Inadequate Change Mgt Process.Calibrated Affected Resistance Temp Detectors & Modified Procedure.With

LER-1999-003-01, :on 990505,identified That 18 Month EDG Surveillance Test for LOP with ESF Start Did Not Initiate Test.Caused by Inadequate Understanding of Regulatory Guidance. a & B EDG Returned to Status.With
type: Subject
label: 05000423/LER-1999-003-01, :on 990505,identified That 18 Month EDG Surveillance Test for LOP with ESF Start Did Not Initiate Test.Caused by Inadequate Understanding of Regulatory Guidance. a & B EDG Returned to Status.With
page: https://kanterella.com/05000423/LER-2D1999-2D003-2D01-2C_-3Aon_990505-2Cidentified_That_18_Month_EDG_Surveillance_Test_for_LOP_with_ESF_Start_Did_Not_Initiate_Test.Caused_by_Inadequate_Understanding_o…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000423/LER-1999-003-01, :on 990505,identified That 18 Month EDG Surveillance Test for LOP with ESF Start Did Not Initiate Test.Caused by Inadequate Understanding of Regulatory Guidance. a & B EDG Returned to Status.With

05000289/LER-1998-008-01, :on 980818,RM RM-A-8G-High Was Noted Inoperable for More than 7 Days.Caused by Weaknesses in I&C Work Practices.Revised Data Collection Portion of Surveillance Procedures
type: Subject
page: https://kanterella.com/05000289/LER-2D1998-2D008-2D01-2C_-3Aon_980818-2CRM_RM-2DA-2D8G-2DHigh_Was_Noted_Inoperable_for_More_than_7_Days.Caused_by_Weaknesses_in_I-26C_Work_Practices.Revised_Data_Collec…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000289/LER-1998-008-01, :on 980818,RM RM-A-8G-High Was Noted Inoperable for More than 7 Days.Caused by Weaknesses in I&C Work Practices.Revised Data Collection Portion of Surveillance Procedures

LER-1997-006, :on 970221,discovered Void at Penetration 39 During Ultrasonic Testing of Lpsi.Caused by TS 4.5.2j Not Being Completed post-maint.Invoked TS Requirement Surveillance 4.0.3 to Complete TS 4.5.2j
type: Subject
label: 05000382/LER-1997-006, :on 970221,discovered Void at Penetration 39 During Ultrasonic Testing of Lpsi.Caused by TS 4.5.2j Not Being Completed post-maint.Invoked TS Requirement Surveillance 4.0.3 to Complete TS 4.5.2j
page: https://kanterella.com/05000382/LER-2D1997-2D006-2C_-3Aon_970221-2Cdiscovered_Void_at_Penetration_39_During_Ultrasonic_Testing_of_Lpsi.Caused_by_TS_4.5.2j_Not_Being_Completed_post-2Dmaint.Invoked_TS_R…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1997-006, :on 970221,discovered Void at Penetration 39 During Ultrasonic Testing of Lpsi.Caused by TS 4.5.2j Not Being Completed post-maint.Invoked TS Requirement Surveillance 4.0.3 to Complete TS 4.5.2j

LER-1997-002, :on 970130,72 H Administrative Action Statement Entered Due to Declaring Shutdown Cooling HX B Inlet & Outlet Valves SI-125B & SI-412B Inoperable.Valves Declared Operable After Installation of Relief Devices
type: Subject
label: 05000382/LER-1997-002, :on 970130,72 H Administrative Action Statement Entered Due to Declaring Shutdown Cooling HX B Inlet & Outlet Valves SI-125B & SI-412B Inoperable.Valves Declared Operable After Installation of Relief Devices
page: https://kanterella.com/05000382/LER-2D1997-2D002-2C_-3Aon_970130-2C72_H_Administrative_Action_Statement_Entered_Due_to_Declaring_Shutdown_Cooling_HX_B_Inlet_-26_Outlet_Valves_SI-2D125B_-26_SI-2D412B_I…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1997-002, :on 970130,72 H Administrative Action Statement Entered Due to Declaring Shutdown Cooling HX B Inlet & Outlet Valves SI-125B & SI-412B Inoperable.Valves Declared Operable After Installation of Relief Devices

LER-1996-025, :on 960927,spent Fuel Building Air Filtration Sys Failed Air Flow Test.Caused by Failure to Recognize Coincident Operation of Pab & Sfb Effect on Air Flow Test. Adjusted Cleanup Sys Damper
type: Subject
label: 05000213/LER-1996-025, :on 960927,spent Fuel Building Air Filtration Sys Failed Air Flow Test.Caused by Failure to Recognize Coincident Operation of Pab & Sfb Effect on Air Flow Test. Adjusted Cleanup Sys Damper
page: https://kanterella.com/05000213/LER-2D1996-2D025-2C_-3Aon_960927-2Cspent_Fuel_Building_Air_Filtration_Sys_Failed_Air_Flow_Test.Caused_by_Failure_to_Recognize_Coincident_Operation_of_Pab_-26_Sfb_Effect…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000213/LER-1996-025, :on 960927,spent Fuel Building Air Filtration Sys Failed Air Flow Test.Caused by Failure to Recognize Coincident Operation of Pab & Sfb Effect on Air Flow Test. Adjusted Cleanup Sys Damper

LER-1997-001, :on 970114,river Temperature Below UFSAR Analyzed Condition Occurred.Caused by Design Basis Calculations Were Not Updated in a Timely Manner.Ufsar & Design Basis Calculations Will Be Revised
type: Subject
label: 05000213/LER-1997-001, :on 970114,river Temperature Below UFSAR Analyzed Condition Occurred.Caused by Design Basis Calculations Were Not Updated in a Timely Manner.Ufsar & Design Basis Calculations Will Be Revised
page: https://kanterella.com/05000213/LER-2D1997-2D001-2C_-3Aon_970114-2Criver_Temperature_Below_UFSAR_Analyzed_Condition_Occurred.Caused_by_Design_Basis_Calculations_Were_Not_Updated_in_a_Timely_Manner.Ufs…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000213/LER-1997-001, :on 970114,river Temperature Below UFSAR Analyzed Condition Occurred.Caused by Design Basis Calculations Were Not Updated in a Timely Manner.Ufsar & Design Basis Calculations Will Be Revised

LER-1985-029-02, :on 851110,turbine-driven Auxiliary Feedwater Pump Automatically Started from Loss of Nonessential Power. Caused by Blown Fuse in auto-start Circuitry.Fuse Replaced & Auxiliary Feedwater Pump Secured
type: Subject
label: 05000370/LER-1985-029-02, :on 851110,turbine-driven Auxiliary Feedwater Pump Automatically Started from Loss of Nonessential Power. Caused by Blown Fuse in auto-start Circuitry.Fuse Replaced & Auxiliary Feedwater Pump Secured
page: https://kanterella.com/05000370/LER-2D1985-2D029-2D02-2C_-3Aon_851110-2Cturbine-2Ddriven_Auxiliary_Feedwater_Pump_Automatically_Started_from_Loss_of_Nonessential_Power._Caused_by_Blown_Fuse_in_auto-2D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000370/LER-1985-029-02, :on 851110,turbine-driven Auxiliary Feedwater Pump Automatically Started from Loss of Nonessential Power. Caused by Blown Fuse in auto-start Circuitry.Fuse Replaced & Auxiliary Feedwater Pump Secured

LER-1997-008, :on 880419,discovered Incorrect Quantity of Tri-Sodium Phospate Used for ECCS Ph Determination.Caused by Personnel Error.Generated Corrective Action Document & Verified post-1988 Similar Surveillances
type: Subject
label: 05000382/LER-1997-008, :on 880419,discovered Incorrect Quantity of Tri-Sodium Phospate Used for ECCS Ph Determination.Caused by Personnel Error.Generated Corrective Action Document & Verified post-1988 Similar Surveillances
page: https://kanterella.com/05000382/LER-2D1997-2D008-2C_-3Aon_880419-2Cdiscovered_Incorrect_Quantity_of_Tri-2DSodium_Phospate_Used_for_ECCS_Ph_Determination.Caused_by_Personnel_Error.Generated_Corrective_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1997-008, :on 880419,discovered Incorrect Quantity of Tri-Sodium Phospate Used for ECCS Ph Determination.Caused by Personnel Error.Generated Corrective Action Document & Verified post-1988 Similar Surveillances

LER-1997-005, :on 890715,failure to Perform Coolant Low Flow Trip Operating Bypass Surveillance Occurred.Caused by Failure to Implement Procedural Controls to Test Reactor Coolant Low Flow Bypass.Event Will Be Reviewed
type: Subject
label: 05000382/LER-1997-005, :on 890715,failure to Perform Coolant Low Flow Trip Operating Bypass Surveillance Occurred.Caused by Failure to Implement Procedural Controls to Test Reactor Coolant Low Flow Bypass.Event Will Be Reviewed
page: https://kanterella.com/05000382/LER-2D1997-2D005-2C_-3Aon_890715-2Cfailure_to_Perform_Coolant_Low_Flow_Trip_Operating_Bypass_Surveillance_Occurred.Caused_by_Failure_to_Implement_Procedural_Controls_to…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1997-005, :on 890715,failure to Perform Coolant Low Flow Trip Operating Bypass Surveillance Occurred.Caused by Failure to Implement Procedural Controls to Test Reactor Coolant Low Flow Bypass.Event Will Be Reviewed

LER-1997-001-02, :on 970117,potential Overpressurization of Piping Between Closed Reactor Building Containment Isolation Valves Occurred Due to Inadequate Design Code Guidance. Results of Review Will Be Documented.Pages 2 & 3 Corrected
type: Subject
label: 05000289/LER-1997-001-02, :on 970117,potential Overpressurization of Piping Between Closed Reactor Building Containment Isolation Valves Occurred Due to Inadequate Design Code Guidance. Results of Review Will Be Documented.Pages 2 & 3 Corrected
page: https://kanterella.com/05000289/LER-2D1997-2D001-2D02-2C_-3Aon_970117-2Cpotential_Overpressurization_of_Piping_Between_Closed_Reactor_Building_Containment_Isolation_Valves_Occurred_Due_to_Inadequate_D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000289/LER-1997-001-02, :on 970117,potential Overpressurization of Piping Between Closed Reactor Building Containment Isolation Valves Occurred Due to Inadequate Design Code Guidance. Results of Review Will Be Documented.Pages 2 & 3 Corrected

05000382/LER-1997-003, :on 970130,process Analog Computer Card Failed on Essential Services Chilled Water Train B.Caused by Open Fuse on Process Analog Control.New Pac Card Installed & Calibrated
type: Subject
page: https://kanterella.com/05000382/LER-2D1997-2D003-2C_-3Aon_970130-2Cprocess_Analog_Computer_Card_Failed_on_Essential_Services_Chilled_Water_Train_B.Caused_by_Open_Fuse_on_Process_Analog_Control.New_Pac…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1997-003, :on 970130,process Analog Computer Card Failed on Essential Services Chilled Water Train B.Caused by Open Fuse on Process Analog Control.New Pac Card Installed & Calibrated

LER-1996-008, :on 961017,two Pressurizer Safety Valves Were Found with Unsatisfactory Lift Setpoints.Caused by Setpoint Drift.Valves Were Returned to Operable Status Using Normal Rework for Components
type: Subject
label: 05000445/LER-1996-008, :on 961017,two Pressurizer Safety Valves Were Found with Unsatisfactory Lift Setpoints.Caused by Setpoint Drift.Valves Were Returned to Operable Status Using Normal Rework for Components
page: https://kanterella.com/05000445/LER-2D1996-2D008-2C_-3Aon_961017-2Ctwo_Pressurizer_Safety_Valves_Were_Found_with_Unsatisfactory_Lift_Setpoints.Caused_by_Setpoint_Drift.Valves_Were_Returned_to_Operable…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000445/LER-1996-008, :on 961017,two Pressurizer Safety Valves Were Found with Unsatisfactory Lift Setpoints.Caused by Setpoint Drift.Valves Were Returned to Operable Status Using Normal Rework for Components

05000354/LER-1996-027-01, :on 961202,ESF Actuation & Unplanned Automatic Start of Safety Auxiliaries Cooling Sys Pump a Occurred Due to Personnel Error.Nco Involved in Event Counseled
type: Subject
page: https://kanterella.com/05000354/LER-2D1996-2D027-2D01-2C_-3Aon_961202-2CESF_Actuation_-26_Unplanned_Automatic_Start_of_Safety_Auxiliaries_Cooling_Sys_Pump_a_Occurred_Due_to_Personnel_Error.Nco_Involve…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000354/LER-1996-027-01, :on 961202,ESF Actuation & Unplanned Automatic Start of Safety Auxiliaries Cooling Sys Pump a Occurred Due to Personnel Error.Nco Involved in Event Counseled

LER-1996-019, :on 961120,inadequate Surveillance Procedures Were Noted Due to Misinterpretation of TS Bases Results in Source Range Monitor Reactor Period Display Not Verified. Procedures CPS 9031.13 Will Be Revised
type: Subject
label: 05000461/LER-1996-019, :on 961120,inadequate Surveillance Procedures Were Noted Due to Misinterpretation of TS Bases Results in Source Range Monitor Reactor Period Display Not Verified. Procedures CPS 9031.13 Will Be Revised
page: https://kanterella.com/05000461/LER-2D1996-2D019-2C_-3Aon_961120-2Cinadequate_Surveillance_Procedures_Were_Noted_Due_to_Misinterpretation_of_TS_Bases_Results_in_Source_Range_Monitor_Reactor_Period_Dis…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000461/LER-1996-019, :on 961120,inadequate Surveillance Procedures Were Noted Due to Misinterpretation of TS Bases Results in Source Range Monitor Reactor Period Display Not Verified. Procedures CPS 9031.13 Will Be Revised

LER-1985-030, :on 850425,both ECCS Trains Declared Inoperable Due to Indeterminate Operability of Containment Recirculation Sump Isolation Check Valves.Caused by Failure to Retest Valves Following Disassembly
type: Subject
label: 05000528/LER-1985-030, :on 850425,both ECCS Trains Declared Inoperable Due to Indeterminate Operability of Containment Recirculation Sump Isolation Check Valves.Caused by Failure to Retest Valves Following Disassembly
page: https://kanterella.com/05000528/LER-2D1985-2D030-2C_-3Aon_850425-2Cboth_ECCS_Trains_Declared_Inoperable_Due_to_Indeterminate_Operability_of_Containment_Recirculation_Sump_Isolation_Check_Valves.Caused…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000528/LER-1985-030, :on 850425,both ECCS Trains Declared Inoperable Due to Indeterminate Operability of Containment Recirculation Sump Isolation Check Valves.Caused by Failure to Retest Valves Following Disassembly

LER-1996-005, :on 960419,automatic Scram Occurred Due to Turbine Vibration During Planned Power Reduction.Turbine Vibration Trip Setting That Initiates Trip of Turbine Due to High Vibration Changed
type: Subject
label: 05000293/LER-1996-005, :on 960419,automatic Scram Occurred Due to Turbine Vibration During Planned Power Reduction.Turbine Vibration Trip Setting That Initiates Trip of Turbine Due to High Vibration Changed
page: https://kanterella.com/05000293/LER-2D1996-2D005-2C_-3Aon_960419-2Cautomatic_Scram_Occurred_Due_to_Turbine_Vibration_During_Planned_Power_Reduction.Turbine_Vibration_Trip_Setting_That_Initiates_Trip_o…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000293/LER-1996-005, :on 960419,automatic Scram Occurred Due to Turbine Vibration During Planned Power Reduction.Turbine Vibration Trip Setting That Initiates Trip of Turbine Due to High Vibration Changed

05000382/LER-1996-009-01, :on 960725,failure of Containment Vacuum Relief Valves CVR-402A & CVR-402B Occurred.Caused by Excessive Roughness in Valve Body Bore.Valves Replaced & Retested
type: Subject
page: https://kanterella.com/05000382/LER-2D1996-2D009-2D01-2C_-3Aon_960725-2Cfailure_of_Containment_Vacuum_Relief_Valves_CVR-2D402A_-26_CVR-2D402B_Occurred.Caused_by_Excessive_Roughness_in_Valve_Body_Bore.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1996-009-01, :on 960725,failure of Containment Vacuum Relief Valves CVR-402A & CVR-402B Occurred.Caused by Excessive Roughness in Valve Body Bore.Valves Replaced & Retested

LER-1996-002-01, :on 960529,TS Surveillance Requirements Not Met & common-cause Failure Identified.Caused by Personnel Error. Revised Surveillance Test Procedures & Modified Underfrequency Reactor Trip Circuits
type: Subject
label: 05000348/LER-1996-002-01, :on 960529,TS Surveillance Requirements Not Met & common-cause Failure Identified.Caused by Personnel Error. Revised Surveillance Test Procedures & Modified Underfrequency Reactor Trip Circuits
page: https://kanterella.com/05000348/LER-2D1996-2D002-2D01-2C_-3Aon_960529-2CTS_Surveillance_Requirements_Not_Met_-26_common-2Dcause_Failure_Identified.Caused_by_Personnel_Error._Revised_Surveillance_Test_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000348/LER-1996-002-01, :on 960529,TS Surveillance Requirements Not Met & common-cause Failure Identified.Caused by Personnel Error. Revised Surveillance Test Procedures & Modified Underfrequency Reactor Trip Circuits

LER-1996-007-01, :on 960411,discovered That Design Basis Flow Rates Could Not Be Achieved on Auxiliary Component Cooling Water Sys.Caused by Inadequate Design.Modified Sys Design & Reviewed Other safety-related Fluid Systems
type: Subject
label: 05000382/LER-1996-007-01, :on 960411,discovered That Design Basis Flow Rates Could Not Be Achieved on Auxiliary Component Cooling Water Sys.Caused by Inadequate Design.Modified Sys Design & Reviewed Other safety-related Fluid Systems
page: https://kanterella.com/05000382/LER-2D1996-2D007-2D01-2C_-3Aon_960411-2Cdiscovered_That_Design_Basis_Flow_Rates_Could_Not_Be_Achieved_on_Auxiliary_Component_Cooling_Water_Sys.Caused_by_Inadequate_Desi…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1996-007-01, :on 960411,discovered That Design Basis Flow Rates Could Not Be Achieved on Auxiliary Component Cooling Water Sys.Caused by Inadequate Design.Modified Sys Design & Reviewed Other safety-related Fluid Systems

O Verification of Secondary Containment Integrity.Caused by Combination of Procedural & Personnel Errors
type: Subject
label: 05000298/LER-1985-001, :on 840922,during Secondary Containment Leak Test,Fuel Handling Operations Conducted W/O Verification of Secondary Containment Integrity.Caused by Combination of Procedural & Personnel Errors
page: https://kanterella.com/05000298/LER-2D1985-2D001-2C_-3Aon_840922-2Cduring_Secondary_Containment_Leak_Test-2CFuel_Handling_Operations_Conducted_W/O_Verification_of_Secondary_Containment_Integrity.Cause…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000298/LER-1985-001, :on 840922,during Secondary Containment Leak Test,Fuel Handling Operations Conducted W/O Verification of Secondary Containment Integrity.Caused by Combination of Procedural & Personnel Errors

Sros & Shift Supervisors
type: Subject
label: 05000373/LER-1996-001-06, :on 960213,missed TS Required Fire Protection Valve Position Verification Occurred.Caused by Human Performance.Operating Dept Senior Mgt Reinforced Expectations W/Sros & Shift Supervisors
page: https://kanterella.com/05000373/LER-2D1996-2D001-2D06-2C_-3Aon_960213-2Cmissed_TS_Required_Fire_Protection_Valve_Position_Verification_Occurred.Caused_by_Human_Performance.Operating_Dept_Senior_Mgt_Re…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000373/LER-1996-001-06, :on 960213,missed TS Required Fire Protection Valve Position Verification Occurred.Caused by Human Performance.Operating Dept Senior Mgt Reinforced Expectations W/Sros & Shift Supervisors

LER-1996-002, :on 960126,noted That TS Surveillance for Turbine Overspeed Missed Due to Oversight in Rescheduling Required Surveillance by Cognizant Personnel.Test Completed on 960126 & Event Reviewed as Lesson Learned
type: Subject
label: 05000446/LER-1996-002, :on 960126,noted That TS Surveillance for Turbine Overspeed Missed Due to Oversight in Rescheduling Required Surveillance by Cognizant Personnel.Test Completed on 960126 & Event Reviewed as Lesson Learned
page: https://kanterella.com/05000446/LER-2D1996-2D002-2C_-3Aon_960126-2Cnoted_That_TS_Surveillance_for_Turbine_Overspeed_Missed_Due_to_Oversight_in_Rescheduling_Required_Surveillance_by_Cognizant_Personnel…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000446/LER-1996-002, :on 960126,noted That TS Surveillance for Turbine Overspeed Missed Due to Oversight in Rescheduling Required Surveillance by Cognizant Personnel.Test Completed on 960126 & Event Reviewed as Lesson Learned

LER-1985-005-01, :on 850201,determined Plant Outside Design Analyses Assumptions,Based on Westinghouse Response Re Negative Flux Rate Trip Setpoint.Bistable Setpoint Reduced to 2.5- Rated Thermal Power
type: Subject
label: 05000369/LER-1985-005-01, :on 850201,determined Plant Outside Design Analyses Assumptions,Based on Westinghouse Response Re Negative Flux Rate Trip Setpoint.Bistable Setpoint Reduced to 2.5% Rated Thermal Power
page: https://kanterella.com/05000369/LER-2D1985-2D005-2D01-2C_-3Aon_850201-2Cdetermined_Plant_Outside_Design_Analyses_Assumptions-2CBased_on_Westinghouse_Response_Re_Negative_Flux_Rate_Trip_Setpoint.Bistab…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000369/LER-1985-005-01, :on 850201,determined Plant Outside Design Analyses Assumptions,Based on Westinghouse Response Re Negative Flux Rate Trip Setpoint.Bistable Setpoint Reduced to 2.5% Rated Thermal Power

05000382/LER-1996-001-02, :on 960111,entered TS 3.0.3 Due to SIT Levels Reading High.Cr Staff Immediately Lowered SIT Levels Until within Specified Ranges for Compliance W/Ts
type: Subject
page: https://kanterella.com/05000382/LER-2D1996-2D001-2D02-2C_-3Aon_960111-2Centered_TS_3.0.3_Due_to_SIT_Levels_Reading_High.Cr_Staff_Immediately_Lowered_SIT_Levels_Until_within_Specified_Ranges_for_Compli…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1996-001-02, :on 960111,entered TS 3.0.3 Due to SIT Levels Reading High.Cr Staff Immediately Lowered SIT Levels Until within Specified Ranges for Compliance W/Ts

05000446/LER-1996-001, :on 960107,allowed Outage Time Was Exceeded in Conjunction W/Enforcement Discretion for RCS Instrument Channel.Caused by Action Statement Requirements Not Being Met
type: Subject
page: https://kanterella.com/05000446/LER-2D1996-2D001-2C_-3Aon_960107-2Callowed_Outage_Time_Was_Exceeded_in_Conjunction_W/Enforcement_Discretion_for_RCS_Instrument_Channel.Caused_by_Action_Statement_Requir…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000446/LER-1996-001, :on 960107,allowed Outage Time Was Exceeded in Conjunction W/Enforcement Discretion for RCS Instrument Channel.Caused by Action Statement Requirements Not Being Met

LER-1995-040, :on 951218,EDG B Inadvertently Started Due to Improper Removal from Svc.Caused by Lack of Questioning Attitude by Operations Personnel.Addressed Communications Issues & Made Procedural Revs
type: Subject
label: 05000354/LER-1995-040, :on 951218,EDG B Inadvertently Started Due to Improper Removal from Svc.Caused by Lack of Questioning Attitude by Operations Personnel.Addressed Communications Issues & Made Procedural Revs
page: https://kanterella.com/05000354/LER-2D1995-2D040-2C_-3Aon_951218-2CEDG_B_Inadvertently_Started_Due_to_Improper_Removal_from_Svc.Caused_by_Lack_of_Questioning_Attitude_by_Operations_Personnel.Addressed…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000354/LER-1995-040, :on 951218,EDG B Inadvertently Started Due to Improper Removal from Svc.Caused by Lack of Questioning Attitude by Operations Personnel.Addressed Communications Issues & Made Procedural Revs

05000382/LER-1995-006-04, :on 951207,failed to Provide Backup Overcurrent Protection Due to Personnel Error.Installed Backup Overcurrent Protection for Circuits & Tested Two Breakers
type: Subject
page: https://kanterella.com/05000382/LER-2D1995-2D006-2D04-2C_-3Aon_951207-2Cfailed_to_Provide_Backup_Overcurrent_Protection_Due_to_Personnel_Error.Installed_Backup_Overcurrent_Protection_for_Circuits_-26_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1995-006-04, :on 951207,failed to Provide Backup Overcurrent Protection Due to Personnel Error.Installed Backup Overcurrent Protection for Circuits & Tested Two Breakers

05000354/LER-1995-029, :on 951102,both Trains of Standby Liquid Control Declared Inoperable Due to Failure to Perform Surveillance Per IST Requirements.Audit Team Performed in- Depth Review of Sys
type: Subject
page: https://kanterella.com/05000354/LER-2D1995-2D029-2C_-3Aon_951102-2Cboth_Trains_of_Standby_Liquid_Control_Declared_Inoperable_Due_to_Failure_to_Perform_Surveillance_Per_IST_Requirements.Audit_Team_Perf…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000354/LER-1995-029, :on 951102,both Trains of Standby Liquid Control Declared Inoperable Due to Failure to Perform Surveillance Per IST Requirements.Audit Team Performed in- Depth Review of Sys

LER-1995-020, :on 950908,automatic Actuation of HPCI Suction Path Swapover ESF Occurred.Caused by Absence of Realistic Operating Band Considering Loop Inaccuracies.Incorporated Realistic Band Into Operations Procedures
type: Subject
label: 05000354/LER-1995-020, :on 950908,automatic Actuation of HPCI Suction Path Swapover ESF Occurred.Caused by Absence of Realistic Operating Band Considering Loop Inaccuracies.Incorporated Realistic Band Into Operations Procedures
page: https://kanterella.com/05000354/LER-2D1995-2D020-2C_-3Aon_950908-2Cautomatic_Actuation_of_HPCI_Suction_Path_Swapover_ESF_Occurred.Caused_by_Absence_of_Realistic_Operating_Band_Considering_Loop_Inaccur…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000354/LER-1995-020, :on 950908,automatic Actuation of HPCI Suction Path Swapover ESF Occurred.Caused by Absence of Realistic Operating Band Considering Loop Inaccuracies.Incorporated Realistic Band Into Operations Procedures

LER-1995-005-04, :on 951102,calibr Input Data for Rosemount Instrument Transmitters Was in Error.Caused by Ineffective Review Process for Instrument Calculations.Established Administrative Control for SIT Level Control
type: Subject
label: 05000382/LER-1995-005-04, :on 951102,calibr Input Data for Rosemount Instrument Transmitters Was in Error.Caused by Ineffective Review Process for Instrument Calculations.Established Administrative Control for SIT Level Control
page: https://kanterella.com/05000382/LER-2D1995-2D005-2D04-2C_-3Aon_951102-2Ccalibr_Input_Data_for_Rosemount_Instrument_Transmitters_Was_in_Error.Caused_by_Ineffective_Review_Process_for_Instrument_Calcula…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000382/LER-1995-005-04, :on 951102,calibr Input Data for Rosemount Instrument Transmitters Was in Error.Caused by Ineffective Review Process for Instrument Calculations.Established Administrative Control for SIT Level Control

LER-1984-005, :on 840426,diesel Generators 12 & 21 Inoperable Simultaneously.Caused by Personnel Error.List of Equipment Required to Maintain Diesel Generator Operability Prepared & Operators Will Be Trained on Event Condition
type: Subject
label: 05000318/LER-1984-005, :on 840426,diesel Generators 12 & 21 Inoperable Simultaneously.Caused by Personnel Error.List of Equipment Required to Maintain Diesel Generator Operability Prepared & Operators Will Be Trained on Event Condition
page: https://kanterella.com/05000318/LER-2D1984-2D005-2C_-3Aon_840426-2Cdiesel_Generators_12_-26_21_Inoperable_Simultaneously.Caused_by_Personnel_Error.List_of_Equipment_Required_to_Maintain_Diesel_Generat…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000318/LER-1984-005, :on 840426,diesel Generators 12 & 21 Inoperable Simultaneously.Caused by Personnel Error.List of Equipment Required to Maintain Diesel Generator Operability Prepared & Operators Will Be Trained on Event Condition

05000317/LER-1995-001-01, :on 950415,Unit 1 Entered TS 3.0.3 When EDG Supplying Backup Power Became Inoperable.Caused by Leaking Fuel Injector Pump Due to Improper Drainage.Drain Lines Cleaned
type: Subject
page: https://kanterella.com/05000317/LER-2D1995-2D001-2D01-2C_-3Aon_950415-2CUnit_1_Entered_TS_3.0.3_When_EDG_Supplying_Backup_Power_Became_Inoperable.Caused_by_Leaking_Fuel_Injector_Pump_Due_to_Improper_D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000317/LER-1995-001-01, :on 950415,Unit 1 Entered TS 3.0.3 When EDG Supplying Backup Power Became Inoperable.Caused by Leaking Fuel Injector Pump Due to Improper Drainage.Drain Lines Cleaned

05000458/LER-1995-005-02, :on 950627,HPCS Pump Breaker Tripped During Surveillance Testing.Cause of Failure Not Identified.Breaker Internals,Prop Springs & Closing Latch Spring Inspected.W/
type: Subject
page: https://kanterella.com/05000458/LER-2D1995-2D005-2D02-2C_-3Aon_950627-2CHPCS_Pump_Breaker_Tripped_During_Surveillance_Testing.Cause_of_Failure_Not_Identified.Breaker_Internals-2CProp_Springs_-26_Closi…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000458/LER-1995-005-02, :on 950627,HPCS Pump Breaker Tripped During Surveillance Testing.Cause of Failure Not Identified.Breaker Internals,Prop Springs & Closing Latch Spring Inspected.W/

LER-1994-014-02, :on 941121,TDAFWP Failed to Start During Cold Start Surveillance Test.Caused by Preexisting Conditions of Tdafwp Trip Valve Linkage.Corrective Maintenance Performed on Linkage
type: Subject
label: 05000423/LER-1994-014-02, :on 941121,TDAFWP Failed to Start During Cold Start Surveillance Test.Caused by Preexisting Conditions of Tdafwp Trip Valve Linkage.Corrective Maintenance Performed on Linkage
page: https://kanterella.com/05000423/LER-2D1994-2D014-2D02-2C_-3Aon_941121-2CTDAFWP_Failed_to_Start_During_Cold_Start_Surveillance_Test.Caused_by_Preexisting_Conditions_of_Tdafwp_Trip_Valve_Linkage.Correct…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000423/LER-1994-014-02, :on 941121,TDAFWP Failed to Start During Cold Start Surveillance Test.Caused by Preexisting Conditions of Tdafwp Trip Valve Linkage.Corrective Maintenance Performed on Linkage

05000285/LER-1993-018, :on 931206,reactor Trip Occurred Due to Turbine Trip on Low Hydraulic Fluid Pressure.Caused by Inadequate Design of ECN 93-162.Configuration of EHC Sys Tubing Corrected
type: Subject
page: https://kanterella.com/05000285/LER-2D1993-2D018-2C_-3Aon_931206-2Creactor_Trip_Occurred_Due_to_Turbine_Trip_on_Low_Hydraulic_Fluid_Pressure.Caused_by_Inadequate_Design_of_ECN_93-2D162.Configuration_o…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000285/LER-1993-018, :on 931206,reactor Trip Occurred Due to Turbine Trip on Low Hydraulic Fluid Pressure.Caused by Inadequate Design of ECN 93-162.Configuration of EHC Sys Tubing Corrected

LER-1993-012, :on 930923,identified Condition Involving Five MOVs Having Cables That Were Inadequately Sized Due to Lack of Attention to Detail in Design Package Preparation for 1990 Mod.Thermal Overloads Enabled
type: Subject
label: 05000285/LER-1993-012, :on 930923,identified Condition Involving Five MOVs Having Cables That Were Inadequately Sized Due to Lack of Attention to Detail in Design Package Preparation for 1990 Mod.Thermal Overloads Enabled
page: https://kanterella.com/05000285/LER-2D1993-2D012-2C_-3Aon_930923-2Cidentified_Condition_Involving_Five_MOVs_Having_Cables_That_Were_Inadequately_Sized_Due_to_Lack_of_Attention_to_Detail_in_Design_Pack…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000285/LER-1993-012, :on 930923,identified Condition Involving Five MOVs Having Cables That Were Inadequately Sized Due to Lack of Attention to Detail in Design Package Preparation for 1990 Mod.Thermal Overloads Enabled

LER-1993-016, :on 931113,CEA Withdrew from Reactor Core & Rod 31 Became Fully Withdrawn.Caused by Lack of Ground Detection Sys for Associated Power Supplies.Ground Detection for CRD Power Supply Installed
type: Subject
label: 05000285/LER-1993-016, :on 931113,CEA Withdrew from Reactor Core & Rod 31 Became Fully Withdrawn.Caused by Lack of Ground Detection Sys for Associated Power Supplies.Ground Detection for CRD Power Supply Installed
page: https://kanterella.com/05000285/LER-2D1993-2D016-2C_-3Aon_931113-2CCEA_Withdrew_from_Reactor_Core_-26_Rod_31_Became_Fully_Withdrawn.Caused_by_Lack_of_Ground_Detection_Sys_for_Associated_Power_Supplies…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000285/LER-1993-016, :on 931113,CEA Withdrew from Reactor Core & Rod 31 Became Fully Withdrawn.Caused by Lack of Ground Detection Sys for Associated Power Supplies.Ground Detection for CRD Power Supply Installed

Or Headset Jack Installed
type: Subject
label: 05000410/LER-1987-025, :on 870519,secondary Containment Isolation Signal Generated Due to Technician Relanding Lifted Lead Prematurely.Caused by Breakdown in Communications.Gaitronics Phone &/Or Headset Jack Installed
page: https://kanterella.com/05000410/LER-2D1987-2D025-2C_-3Aon_870519-2Csecondary_Containment_Isolation_Signal_Generated_Due_to_Technician_Relanding_Lifted_Lead_Prematurely.Caused_by_Breakdown_in_Communica…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000410/LER-1987-025, :on 870519,secondary Containment Isolation Signal Generated Due to Technician Relanding Lifted Lead Prematurely.Caused by Breakdown in Communications.Gaitronics Phone &/Or Headset Jack Installed

LER-1989-003-03, :on 890307,reactor Protection Sys Channel a half-scram & Actuation of Standby Gas Treatment Sys Occurred When Circuit Protectors Momentarily Tripped.Caused by Voltage Transient.Signals Reset
type: Subject
label: 05000296/LER-1989-003-03, :on 890307,reactor Protection Sys Channel a half-scram & Actuation of Standby Gas Treatment Sys Occurred When Circuit Protectors Momentarily Tripped.Caused by Voltage Transient.Signals Reset
page: https://kanterella.com/05000296/LER-2D1989-2D003-2D03-2C_-3Aon_890307-2Creactor_Protection_Sys_Channel_a_half-2Dscram_-26_Actuation_of_Standby_Gas_Treatment_Sys_Occurred_When_Circuit_Protectors_Moment…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000296/LER-1989-003-03, :on 890307,reactor Protection Sys Channel a half-scram & Actuation of Standby Gas Treatment Sys Occurred When Circuit Protectors Momentarily Tripped.Caused by Voltage Transient.Signals Reset

LER-1987-019-01, :on 870712,turbine Runback from 89- Reactor Power to 84- Reactor Power Occurred.Caused by Spurious Spike in Rod Position Indication Sys.Faulty Solder Joint Repaired & Signal Conditioners Inspected
type: Subject
label: 05000251/LER-1987-019-01, :on 870712,turbine Runback from 89% Reactor Power to 84% Reactor Power Occurred.Caused by Spurious Spike in Rod Position Indication Sys.Faulty Solder Joint Repaired & Signal Conditioners Inspected
page: https://kanterella.com/05000251/LER-2D1987-2D019-2D01-2C_-3Aon_870712-2Cturbine_Runback_from_89-_Reactor_Power_to_84-_Reactor_Power_Occurred.Caused_by_Spurious_Spike_in_Rod_Position_Indication_Sys.Fau…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000251/LER-1987-019-01, :on 870712,turbine Runback from 89% Reactor Power to 84% Reactor Power Occurred.Caused by Spurious Spike in Rod Position Indication Sys.Faulty Solder Joint Repaired & Signal Conditioners Inspected

8 Inch in 46 Flow Passages & 6 of 24 Ice Condenser Bays.Caused by Abnormal Degradation.Ice Condenser Defrosted
type: Subject
label: 05000316/LER-1987-010-01, :on 870902,insps Revealed Frost & Ice Buildup on Lattice Frames of Greater That 3/8 Inch in 46 Flow Passages & 6 of 24 Ice Condenser Bays.Caused by Abnormal Degradation.Ice Condenser Defrosted
page: https://kanterella.com/05000316/LER-2D1987-2D010-2D01-2C_-3Aon_870902-2Cinsps_Revealed_Frost_-26_Ice_Buildup_on_Lattice_Frames_of_Greater_That_3/8_Inch_in_46_Flow_Passages_-26_6_of_24_Ice_Condenser_Ba…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000316/LER-1987-010-01, :on 870902,insps Revealed Frost & Ice Buildup on Lattice Frames of Greater That 3/8 Inch in 46 Flow Passages & 6 of 24 Ice Condenser Bays.Caused by Abnormal Degradation.Ice Condenser Defrosted

LER-1987-005-01, :on 870602,ESF Actuation Occurred Due to Low Low Steam Generator Level in Steam Generator 23.Caused by Personnel Error.Appropriate Administrative Action Taken Re Personnel.Procedures Implemented
type: Subject
label: 05000316/LER-1987-005-01, :on 870602,ESF Actuation Occurred Due to Low Low Steam Generator Level in Steam Generator 23.Caused by Personnel Error.Appropriate Administrative Action Taken Re Personnel.Procedures Implemented
page: https://kanterella.com/05000316/LER-2D1987-2D005-2D01-2C_-3Aon_870602-2CESF_Actuation_Occurred_Due_to_Low_Low_Steam_Generator_Level_in_Steam_Generator_23.Caused_by_Personnel_Error.Appropriate_Administ…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000316/LER-1987-005-01, :on 870602,ESF Actuation Occurred Due to Low Low Steam Generator Level in Steam Generator 23.Caused by Personnel Error.Appropriate Administrative Action Taken Re Personnel.Procedures Implemented

LER-1989-031, :on 890806,low Reactor Pressure Vessel Level Reactor Scram Initiated by Reactor Protective Sys in Response to Actual Low Water Level Condition Caused Unplanned Trip of Reactor Feedwater Pump 1B
type: Subject
label: 05000397/LER-1989-031, :on 890806,low Reactor Pressure Vessel Level Reactor Scram Initiated by Reactor Protective Sys in Response to Actual Low Water Level Condition Caused Unplanned Trip of Reactor Feedwater Pump 1B
page: https://kanterella.com/05000397/LER-2D1989-2D031-2C_-3Aon_890806-2Clow_Reactor_Pressure_Vessel_Level_Reactor_Scram_Initiated_by_Reactor_Protective_Sys_in_Response_to_Actual_Low_Water_Level_Condition_C…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000397/LER-1989-031, :on 890806,low Reactor Pressure Vessel Level Reactor Scram Initiated by Reactor Protective Sys in Response to Actual Low Water Level Condition Caused Unplanned Trip of Reactor Feedwater Pump 1B

LER-1989-013, :on 890508,preliminary Calculations Indicated Potential Common Mode Failure of Redundant 120-volt safety- Related Devices.Caused by Less than Adequate Design Criteria to Limit Voltage Drops.Procedure Revised
type: Subject
label: 05000397/LER-1989-013, :on 890508,preliminary Calculations Indicated Potential Common Mode Failure of Redundant 120-volt safety- Related Devices.Caused by Less than Adequate Design Criteria to Limit Voltage Drops.Procedure Revised
page: https://kanterella.com/05000397/LER-2D1989-2D013-2C_-3Aon_890508-2Cpreliminary_Calculations_Indicated_Potential_Common_Mode_Failure_of_Redundant_120-2Dvolt_safety-2D_Related_Devices.Caused_by_Less_tha…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000397/LER-1989-013, :on 890508,preliminary Calculations Indicated Potential Common Mode Failure of Redundant 120-volt safety- Related Devices.Caused by Less than Adequate Design Criteria to Limit Voltage Drops.Procedure Revised

Potential Defective Switches.Caused by Design Problem.Investigation & Evaluation of Switch Problems Immediately Initiated.Part 21 Related
type: Subject
label: 05000397/LER-1988-017, :on 880615,problems W/Limitorque Models SMB-000 & SMB-00 Discovered W/Potential Defective Switches.Caused by Design Problem.Investigation & Evaluation of Switch Problems Immediately Initiated.Part 21 Related
page: https://kanterella.com/05000397/LER-2D1988-2D017-2C_-3Aon_880615-2Cproblems_W/Limitorque_Models_SMB-2D000_-26_SMB-2D00_Discovered_W/Potential_Defective_Switches.Caused_by_Design_Problem.Investigation_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000397/LER-1988-017, :on 880615,problems W/Limitorque Models SMB-000 & SMB-00 Discovered W/Potential Defective Switches.Caused by Design Problem.Investigation & Evaluation of Switch Problems Immediately Initiated.Part 21 Related

05000397/LER-1988-012, :on 880606,potential Existence of Unmonitored Radiological Effluent Release Path During Certain Emergency Conditions Determined.Cause Unknown.Fan Disabled.Part 21 Related
type: Subject
page: https://kanterella.com/05000397/LER-2D1988-2D012-2C_-3Aon_880606-2Cpotential_Existence_of_Unmonitored_Radiological_Effluent_Release_Path_During_Certain_Emergency_Conditions_Determined.Cause_Unknown.Fa…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000397/LER-1988-012, :on 880606,potential Existence of Unmonitored Radiological Effluent Release Path During Certain Emergency Conditions Determined.Cause Unknown.Fan Disabled.Part 21 Related

05000237/LER-2009-004, Shutdown Cooling System Isolation During Cooldown Due to Temperature Instrumentation Failure
type: Subject
page: https://kanterella.com/05000237/LER-2D2009-2D004-2C_Shutdown_Cooling_System_Isolation_During_Cooldown_Due_to_Temperature_Instrumentation_Failure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000237/LER-2009-004, Shutdown Cooling System Isolation During Cooldown Due to Temperature Instrumentation Failure

05000302/LER-1998-004, :on 980212,unanalyzed cross-connecting of 480 Volt Busses Was Noted.Caused by Inadequate Design Controls. Administrative Controls Will Remain in Place
type: Subject
page: https://kanterella.com/05000302/LER-2D1998-2D004-2C_-3Aon_980212-2Cunanalyzed_cross-2Dconnecting_of_480_Volt_Busses_Was_Noted.Caused_by_Inadequate_Design_Controls._Administrative_Controls_Will_Remain_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000302/LER-1998-004, :on 980212,unanalyzed cross-connecting of 480 Volt Busses Was Noted.Caused by Inadequate Design Controls. Administrative Controls Will Remain in Place

LER-1999-002-01, :on 990327,inadequate Performance of TS Surveillance When Evaluating Source Range Nuclear Instrument Discriminator Bias Curve Results,Was Discovered.Caused by Lack of Process to Incorporate Info.Compared Bias Curves
type: Subject
label: 05000498/LER-1999-002-01, :on 990327,inadequate Performance of TS Surveillance When Evaluating Source Range Nuclear Instrument Discriminator Bias Curve Results,Was Discovered.Caused by Lack of Process to Incorporate Info.Compared Bias Curves
page: https://kanterella.com/05000498/LER-2D1999-2D002-2D01-2C_-3Aon_990327-2Cinadequate_Performance_of_TS_Surveillance_When_Evaluating_Source_Range_Nuclear_Instrument_Discriminator_Bias_Curve_Results-2CWas…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 308A
wiki page sort key: 05000498/LER-1999-002-01, :on 990327,inadequate Performance of TS Surveillance When Evaluating Source Range Nuclear Instrument Discriminator Bias Curve Results,Was Discovered.Caused by Lack of Process to Incorporate Info.Compared Bias Curves

NRC form
type: ObjectProperty
page: https://kanterella.com/Property-3ANRC_form
wiki namespace: 102
wiki page content language: en
wiki page sort key: NRC form
type: wpg