NRC Form 368A
type: Ontology
creation date: 2025-12-05T22:05:53-05:00
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NRC Form 368A
type: Subject
page: https://kanterella.com/NRC_Form_368A
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wiki page sort key: NRC Form 368A

Emergency Switchgear Room Chiller Was Declared Inoperable Due to High Svc Water Differential Pressure & Inoperable Emergency Power Source. Svc Water Differential Pressure Restored
type: Subject
label: 05000281/LER-1992-003-03, :on 920325,main Cr/Emergency Switchgear Room Chiller Was Declared Inoperable Due to High Svc Water Differential Pressure & Inoperable Emergency Power Source. Svc Water Differential Pressure Restored
page: https://kanterella.com/05000281/LER-2D1992-2D003-2D03-2C_-3Aon_920325-2Cmain_Cr/Emergency_Switchgear_Room_Chiller_Was_Declared_Inoperable_Due_to_High_Svc_Water_Differential_Pressure_-26_Inoperable_Eme…
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wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1992-003-03, :on 920325,main Cr/Emergency Switchgear Room Chiller Was Declared Inoperable Due to High Svc Water Differential Pressure & Inoperable Emergency Power Source. Svc Water Differential Pressure Restored

LER-1988-015-02, :on 880626,rod Urgent Failure Annunciator Activated in Control Room.Caused by Failed Circuit Card & Blown Fuse.Failed Circuit Card & Blown Fuse Replaced & Rod Control Sys Tested Satisfactorily
type: Subject
label: 05000281/LER-1988-015-02, :on 880626,rod Urgent Failure Annunciator Activated in Control Room.Caused by Failed Circuit Card & Blown Fuse.Failed Circuit Card & Blown Fuse Replaced & Rod Control Sys Tested Satisfactorily
page: https://kanterella.com/05000281/LER-2D1988-2D015-2D02-2C_-3Aon_880626-2Crod_Urgent_Failure_Annunciator_Activated_in_Control_Room.Caused_by_Failed_Circuit_Card_-26_Blown_Fuse.Failed_Circuit_Card_-26_Bl…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1988-015-02, :on 880626,rod Urgent Failure Annunciator Activated in Control Room.Caused by Failed Circuit Card & Blown Fuse.Failed Circuit Card & Blown Fuse Replaced & Rod Control Sys Tested Satisfactorily

LER-1988-043, :on 881110,engineering Evaluation Determined That Recirculation Sprays B & C HX Svc Water Inlet Valve & Outlet Valve Have Undersized Motors.Cause Undetermined. Motors Will Be Replaced Prior to Unit Restart
type: Subject
label: 05000280/LER-1988-043, :on 881110,engineering Evaluation Determined That Recirculation Sprays B & C HX Svc Water Inlet Valve & Outlet Valve Have Undersized Motors.Cause Undetermined. Motors Will Be Replaced Prior to Unit Restart
page: https://kanterella.com/05000280/LER-2D1988-2D043-2C_-3Aon_881110-2Cengineering_Evaluation_Determined_That_Recirculation_Sprays_B_-26_C_HX_Svc_Water_Inlet_Valve_-26_Outlet_Valve_Have_Undersized_Motors.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-043, :on 881110,engineering Evaluation Determined That Recirculation Sprays B & C HX Svc Water Inlet Valve & Outlet Valve Have Undersized Motors.Cause Undetermined. Motors Will Be Replaced Prior to Unit Restart

3F0397-01, LER 97-S01-00:on 970130,maint Activities in Circulating Water Sys Resulted in Protected Area Breach.Caused by Failure to Identify Security Function of Plant.Armed Security Was Established
type: Subject
page: https://kanterella.com/3F0397-2D01-2C_LER_97-2DS01-2D00-3Aon_970130-2Cmaint_Activities_in_Circulating_Water_Sys_Resulted_in_Protected_Area_Breach.Caused_by_Failure_to_Identify_Security_Function_of_Pla…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 3F0397-01, LER 97-S01-00:on 970130,maint Activities in Circulating Water Sys Resulted in Protected Area Breach.Caused by Failure to Identify Security Function of Plant.Armed Security Was Established

LER-1995-016-01, :on 950720,difference Between Containment Design Parameters & Accident Analysis Was Discovered.Caused by Inadequate 10CFR50.59 SEs for Changes in Containment Temp Profiles.Changed UFSAR & TS
type: Subject
label: 05000272/LER-1995-016-01, :on 950720,difference Between Containment Design Parameters & Accident Analysis Was Discovered.Caused by Inadequate 10CFR50.59 SEs for Changes in Containment Temp Profiles.Changed UFSAR & TS
page: https://kanterella.com/05000272/LER-2D1995-2D016-2D01-2C_-3Aon_950720-2Cdifference_Between_Containment_Design_Parameters_-26_Accident_Analysis_Was_Discovered.Caused_by_Inadequate_10CFR50.59_SEs_for_Ch…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1995-016-01, :on 950720,difference Between Containment Design Parameters & Accident Analysis Was Discovered.Caused by Inadequate 10CFR50.59 SEs for Changes in Containment Temp Profiles.Changed UFSAR & TS

LER-1995-004, :on 950607,EFS Actuation Occurred During Unit 2 Controlled Shutdown Per TS 3.0.3.Caused by Inadequate Mgt Oversight of Operability Determination Process.Trained All Licensed Operators
type: Subject
label: 05000311/LER-1995-004, :on 950607,EFS Actuation Occurred During Unit 2 Controlled Shutdown Per TS 3.0.3.Caused by Inadequate Mgt Oversight of Operability Determination Process.Trained All Licensed Operators
page: https://kanterella.com/05000311/LER-2D1995-2D004-2C_-3Aon_950607-2CEFS_Actuation_Occurred_During_Unit_2_Controlled_Shutdown_Per_TS_3.0.3.Caused_by_Inadequate_Mgt_Oversight_of_Operability_Determination…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000311/LER-1995-004, :on 950607,EFS Actuation Occurred During Unit 2 Controlled Shutdown Per TS 3.0.3.Caused by Inadequate Mgt Oversight of Operability Determination Process.Trained All Licensed Operators

ML20198K392
type: Subject
page: https://kanterella.com/ML20198K392
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML20198K392

0CAN050202, LER 02-S01-00 for Arkansas Nuclear One Units 1 and 2, Compensatory Measures Were Removed While a Security Perimeter Intrusion Detection Microwave Field Remained Disarmed
type: Subject
page: https://kanterella.com/0CAN050202-2C_LER_02-2DS01-2D00_for_Arkansas_Nuclear_One_Units_1_and_2-2C_Compensatory_Measures_Were_Removed_While_a_Security_Perimeter_Intrusion_Detection_Microwave_Field_Remai…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 0CAN050202, LER 02-S01-00 for Arkansas Nuclear One Units 1 and 2, Compensatory Measures Were Removed While a Security Perimeter Intrusion Detection Microwave Field Remained Disarmed

05000272/LER-1996-012-01, :on 960723,potential Loss of Residual Capability Identified.Caused by Inadequate Valve Design.Rhr Flow Control Valves Replaced
type: Subject
page: https://kanterella.com/05000272/LER-2D1996-2D012-2D01-2C_-3Aon_960723-2Cpotential_Loss_of_Residual_Capability_Identified.Caused_by_Inadequate_Valve_Design.Rhr_Flow_Control_Valves_Replaced
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1996-012-01, :on 960723,potential Loss of Residual Capability Identified.Caused by Inadequate Valve Design.Rhr Flow Control Valves Replaced

Carbon Steel Bolts
type: Subject
label: 05000272/LER-1995-020-01, :on 950914,vital 230 Volt MCCs Declared Inoperable Due to Failed Bus Bar Bolting.Caused by Stress Corrosion Cracking.Design Change Package DCP-1ER-0098 Implemented to Replace Bus Bolts W/Carbon Steel Bolts
page: https://kanterella.com/05000272/LER-2D1995-2D020-2D01-2C_-3Aon_950914-2Cvital_230_Volt_MCCs_Declared_Inoperable_Due_to_Failed_Bus_Bar_Bolting.Caused_by_Stress_Corrosion_Cracking.Design_Change_Package_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1995-020-01, :on 950914,vital 230 Volt MCCs Declared Inoperable Due to Failed Bus Bar Bolting.Caused by Stress Corrosion Cracking.Design Change Package DCP-1ER-0098 Implemented to Replace Bus Bolts W/Carbon Steel Bolts

05000260/LER-1994-010, :on 941005,loss of ECCS Division II Instrumentation Resulting from Blown Fuse in Atu Inverter. Caused by a Failed Capacitor.Blown DC Input Fuse Was Replaced
type: Subject
page: https://kanterella.com/05000260/LER-2D1994-2D010-2C_-3Aon_941005-2Closs_of_ECCS_Division_II_Instrumentation_Resulting_from_Blown_Fuse_in_Atu_Inverter._Caused_by_a_Failed_Capacitor.Blown_DC_Input_Fuse_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000260/LER-1994-010, :on 941005,loss of ECCS Division II Instrumentation Resulting from Blown Fuse in Atu Inverter. Caused by a Failed Capacitor.Blown DC Input Fuse Was Replaced

05000397/LER-2014-004
type: Subject
page: https://kanterella.com/05000397/LER-2D2014-2D004
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-2014-004

Seat Bonding Resulting in SRV Setpoints.Srv Pilot Cartridges Replaced
type: Subject
label: 05000260/LER-1996-008, :on 961101,Unit 2 Main Steam SRV Pilot Cartridges Failed Setpoint Tolerence Bench Tests.Caused by SRV Pilot Disc/Seat Bonding Resulting in SRV Setpoints.Srv Pilot Cartridges Replaced
page: https://kanterella.com/05000260/LER-2D1996-2D008-2C_-3Aon_961101-2CUnit_2_Main_Steam_SRV_Pilot_Cartridges_Failed_Setpoint_Tolerence_Bench_Tests.Caused_by_SRV_Pilot_Disc/Seat_Bonding_Resulting_in_SRV_S…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000260/LER-1996-008, :on 961101,Unit 2 Main Steam SRV Pilot Cartridges Failed Setpoint Tolerence Bench Tests.Caused by SRV Pilot Disc/Seat Bonding Resulting in SRV Setpoints.Srv Pilot Cartridges Replaced

ML23251A016
type: Subject
page: https://kanterella.com/ML23251A016
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML23251A016

05000316/LER-2020-004-01, Regarding Unit 2 Automatic Reactor Trip on Low-Low 24 Steam Generator Water Level
type: Subject
page: https://kanterella.com/05000316/LER-2D2020-2D004-2D01-2C_Regarding_Unit_2_Automatic_Reactor_Trip_on_Low-2DLow_24_Steam_Generator_Water_Level
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wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-2020-004-01, Regarding Unit 2 Automatic Reactor Trip on Low-Low 24 Steam Generator Water Level

05000315/LER-2020-001, Containment Closure Requirements Not Met During Refueling Operations
type: Subject
page: https://kanterella.com/05000315/LER-2D2020-2D001-2C_Containment_Closure_Requirements_Not_Met_During_Refueling_Operations
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-2020-001, Containment Closure Requirements Not Met During Refueling Operations

05000369/LER-2020-001, Condition Prohibited by Technical Specification 3.4.15, Reactor Coolant System (RCS) Leakage Detection Instrumentation
type: Subject
page: https://kanterella.com/05000369/LER-2D2020-2D001-2C_Condition_Prohibited_by_Technical_Specification_3.4.15-2C_Reactor_Coolant_System_-28RCS-29_Leakage_Detection_Instrumentation
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000369/LER-2020-001, Condition Prohibited by Technical Specification 3.4.15, Reactor Coolant System (RCS) Leakage Detection Instrumentation

05000458/LER-2020-004, Inadvertent Initiation and Injection of High Pressure Core Spray (HPCS)
type: Subject
page: https://kanterella.com/05000458/LER-2D2020-2D004-2C_Inadvertent_Initiation_and_Injection_of_High_Pressure_Core_Spray_-28HPCS-29
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000458/LER-2020-004, Inadvertent Initiation and Injection of High Pressure Core Spray (HPCS)

Reactor Core Power Level Was in Excess of 1518.5 Mwt.Caused by Failure to Return FT-466V Input Parameter to Off Scan.Input FT-446V Was Removed from on Scan at Approx 1452
type: Subject
label: 05000301/LER-1998-004-01, :on 980424,operations W/Reactor Core Power Level Was in Excess of 1518.5 Mwt.Caused by Failure to Return FT-466V Input Parameter to Off Scan.Input FT-446V Was Removed from on Scan at Approx 1452
page: https://kanterella.com/05000301/LER-2D1998-2D004-2D01-2C_-3Aon_980424-2Coperations_W/Reactor_Core_Power_Level_Was_in_Excess_of_1518.5_Mwt.Caused_by_Failure_to_Return_FT-2D466V_Input_Parameter_to_Off_S…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000301/LER-1998-004-01, :on 980424,operations W/Reactor Core Power Level Was in Excess of 1518.5 Mwt.Caused by Failure to Return FT-466V Input Parameter to Off Scan.Input FT-446V Was Removed from on Scan at Approx 1452

LER-1989-019, :890623,loop II of RHR Sys Technically Inoperable When Operability Required by Tech Specs.Caused by Inadequate Tracking & Dispositioning of Test Deficiency. Signature Requirements Added to Test Packages
type: Subject
label: 05000260/LER-1989-019, :890623,loop II of RHR Sys Technically Inoperable When Operability Required by Tech Specs.Caused by Inadequate Tracking & Dispositioning of Test Deficiency. Signature Requirements Added to Test Packages
page: https://kanterella.com/05000260/LER-2D1989-2D019-2C_-3A890623-2Cloop_II_of_RHR_Sys_Technically_Inoperable_When_Operability_Required_by_Tech_Specs.Caused_by_Inadequate_Tracking_-26_Dispositioning_of_Te…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000260/LER-1989-019, :890623,loop II of RHR Sys Technically Inoperable When Operability Required by Tech Specs.Caused by Inadequate Tracking & Dispositioning of Test Deficiency. Signature Requirements Added to Test Packages

LER-1989-005-01, :on 890323,discovered That Snubber Functional Test Procedure to Satisfy Tech Specs 4.7.8.1.c & D Not Adequate.Caused by Lack of Adequate Control for Procedures. Rev Proposed to Facility Instruction CCI-104
type: Subject
label: 05000318/LER-1989-005-01, :on 890323,discovered That Snubber Functional Test Procedure to Satisfy Tech Specs 4.7.8.1.c & D Not Adequate.Caused by Lack of Adequate Control for Procedures. Rev Proposed to Facility Instruction CCI-104
page: https://kanterella.com/05000318/LER-2D1989-2D005-2D01-2C_-3Aon_890323-2Cdiscovered_That_Snubber_Functional_Test_Procedure_to_Satisfy_Tech_Specs_4.7.8.1.c_-26_D_Not_Adequate.Caused_by_Lack_of_Adequate_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000318/LER-1989-005-01, :on 890323,discovered That Snubber Functional Test Procedure to Satisfy Tech Specs 4.7.8.1.c & D Not Adequate.Caused by Lack of Adequate Control for Procedures. Rev Proposed to Facility Instruction CCI-104

LER-1998-005, :on 980617,functional Requirements of Hps Was Not IAW Design.Caused by Failure to Completely Evaluate FSAR Impact on Design Basis.Developed post-accident Recovery Guidance & Design Mod to Allow Use of 12 Inch Inlet Valve
type: Subject
label: 05000445/LER-1998-005, :on 980617,functional Requirements of Hps Was Not IAW Design.Caused by Failure to Completely Evaluate FSAR Impact on Design Basis.Developed post-accident Recovery Guidance & Design Mod to Allow Use of 12 Inch Inlet Valve
page: https://kanterella.com/05000445/LER-2D1998-2D005-2C_-3Aon_980617-2Cfunctional_Requirements_of_Hps_Was_Not_IAW_Design.Caused_by_Failure_to_Completely_Evaluate_FSAR_Impact_on_Design_Basis.Developed_post…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000445/LER-1998-005, :on 980617,functional Requirements of Hps Was Not IAW Design.Caused by Failure to Completely Evaluate FSAR Impact on Design Basis.Developed post-accident Recovery Guidance & Design Mod to Allow Use of 12 Inch Inlet Valve

05000317/LER-1987-014, :on 871016,containment Air Lock Door Seal Functional Test Not Performed within 72 H After Use.Caused by Administrative Oversight.Appropriate Employees Will Be Counseled
type: Subject
page: https://kanterella.com/05000317/LER-2D1987-2D014-2C_-3Aon_871016-2Ccontainment_Air_Lock_Door_Seal_Functional_Test_Not_Performed_within_72_H_After_Use.Caused_by_Administrative_Oversight.Appropriate_Emp…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000317/LER-1987-014, :on 871016,containment Air Lock Door Seal Functional Test Not Performed within 72 H After Use.Caused by Administrative Oversight.Appropriate Employees Will Be Counseled

Design Occurred.Caused by Use of 275 Psig Solenoid Valve Which Does Not Meet Minimum DC Voltage Available.Solenoid Valves Modified
type: Subject
label: 05000266/LER-1998-008, :on 980203,EDG Air Start Motor Solenoid Valves W/Spring Not in Accordance W/Design Occurred.Caused by Use of 275 Psig Solenoid Valve Which Does Not Meet Minimum DC Voltage Available.Solenoid Valves Modified
page: https://kanterella.com/05000266/LER-2D1998-2D008-2C_-3Aon_980203-2CEDG_Air_Start_Motor_Solenoid_Valves_W/Spring_Not_in_Accordance_W/Design_Occurred.Caused_by_Use_of_275_Psig_Solenoid_Valve_Which_Does_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000266/LER-1998-008, :on 980203,EDG Air Start Motor Solenoid Valves W/Spring Not in Accordance W/Design Occurred.Caused by Use of 275 Psig Solenoid Valve Which Does Not Meet Minimum DC Voltage Available.Solenoid Valves Modified

05000382/LER-1998-004, :on 980304,TS 4.0.3 Condition - CPC Channel Functional Test,Was Concluded from Preliminary CEOG Rept. Caused by Human Error.Cpc Channels A,B & C Were Satisfactorily Tested
type: Subject
page: https://kanterella.com/05000382/LER-2D1998-2D004-2C_-3Aon_980304-2CTS_4.0.3_Condition_-2D_CPC_Channel_Functional_Test-2CWas_Concluded_from_Preliminary_CEOG_Rept._Caused_by_Human_Error.Cpc_Channels_A-2…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000382/LER-1998-004, :on 980304,TS 4.0.3 Condition - CPC Channel Functional Test,Was Concluded from Preliminary CEOG Rept. Caused by Human Error.Cpc Channels A,B & C Were Satisfactorily Tested

A to Previously Identified Condition.Procedures Were Revised.With
type: Subject
label: 05000324/LER-1999-008-02, :on 990920,condenser Pressure Sensing Line Drain Activities Resulted in ESF & RPS Actuation.Caused by Inadequate Implementation of C/A to Previously Identified Condition.Procedures Were Revised.With
page: https://kanterella.com/05000324/LER-2D1999-2D008-2D02-2C_-3Aon_990920-2Ccondenser_Pressure_Sensing_Line_Drain_Activities_Resulted_in_ESF_-26_RPS_Actuation.Caused_by_Inadequate_Implementation_of_C/A_to…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000324/LER-1999-008-02, :on 990920,condenser Pressure Sensing Line Drain Activities Resulted in ESF & RPS Actuation.Caused by Inadequate Implementation of C/A to Previously Identified Condition.Procedures Were Revised.With

LER-1986-030, :on 860717,three Tech Spec Surveillance Requirements Not Performed.Caused by Procedure Inadequacy & Deficiency in Initial Writing of Section of Tech Spec.Tech Spec Change Will Be Submitted
type: Subject
label: 05000327/LER-1986-030, :on 860717,three Tech Spec Surveillance Requirements Not Performed.Caused by Procedure Inadequacy & Deficiency in Initial Writing of Section of Tech Spec.Tech Spec Change Will Be Submitted
page: https://kanterella.com/05000327/LER-2D1986-2D030-2C_-3Aon_860717-2Cthree_Tech_Spec_Surveillance_Requirements_Not_Performed.Caused_by_Procedure_Inadequacy_-26_Deficiency_in_Initial_Writing_of_Section_o…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000327/LER-1986-030, :on 860717,three Tech Spec Surveillance Requirements Not Performed.Caused by Procedure Inadequacy & Deficiency in Initial Writing of Section of Tech Spec.Tech Spec Change Will Be Submitted

LER-1987-002-02, :on 870207,reactor Tripped on Low Steam Generator Level During Controlled Shutdown for Scheduled Refueling Outage.Caused by Equipment Failure.Steam Generator Level Indicators Repaired
type: Subject
label: 05000335/LER-1987-002-02, :on 870207,reactor Tripped on Low Steam Generator Level During Controlled Shutdown for Scheduled Refueling Outage.Caused by Equipment Failure.Steam Generator Level Indicators Repaired
page: https://kanterella.com/05000335/LER-2D1987-2D002-2D02-2C_-3Aon_870207-2Creactor_Tripped_on_Low_Steam_Generator_Level_During_Controlled_Shutdown_for_Scheduled_Refueling_Outage.Caused_by_Equipment_Failu…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1987-002-02, :on 870207,reactor Tripped on Low Steam Generator Level During Controlled Shutdown for Scheduled Refueling Outage.Caused by Equipment Failure.Steam Generator Level Indicators Repaired

LER-1986-028, :on 860710,review of B&W Small Break LOCA Licensing Analyses Identified Potentially Nonconservative Input Assumptions.Caused by Lack of Util Involvement in B&W Analyses Performed in 1972 & 1973
type: Subject
label: 05000346/LER-1986-028, :on 860710,review of B&W Small Break LOCA Licensing Analyses Identified Potentially Nonconservative Input Assumptions.Caused by Lack of Util Involvement in B&W Analyses Performed in 1972 & 1973
page: https://kanterella.com/05000346/LER-2D1986-2D028-2C_-3Aon_860710-2Creview_of_B-26W_Small_Break_LOCA_Licensing_Analyses_Identified_Potentially_Nonconservative_Input_Assumptions.Caused_by_Lack_of_Util_I…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000346/LER-1986-028, :on 860710,review of B&W Small Break LOCA Licensing Analyses Identified Potentially Nonconservative Input Assumptions.Caused by Lack of Util Involvement in B&W Analyses Performed in 1972 & 1973

LER-1997-013, :on 960807,plant Was Noted Outside Design Basis Due to Inadequate Scram Discharge Volume Mod.Inadequate Design Review May Have Caused Condition.Cause Is Unknown. Implemented Mod MP96-121 in May 1997
type: Subject
label: 05000298/LER-1997-013, :on 960807,plant Was Noted Outside Design Basis Due to Inadequate Scram Discharge Volume Mod.Inadequate Design Review May Have Caused Condition.Cause Is Unknown. Implemented Mod MP96-121 in May 1997
page: https://kanterella.com/05000298/LER-2D1997-2D013-2C_-3Aon_960807-2Cplant_Was_Noted_Outside_Design_Basis_Due_to_Inadequate_Scram_Discharge_Volume_Mod.Inadequate_Design_Review_May_Have_Caused_Condition.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000298/LER-1997-013, :on 960807,plant Was Noted Outside Design Basis Due to Inadequate Scram Discharge Volume Mod.Inadequate Design Review May Have Caused Condition.Cause Is Unknown. Implemented Mod MP96-121 in May 1997

LER-1997-011, :on 970921,TS Surveillance Test Performance Resulted in Esfas.Caused by Procedure Weakness.Temporarily Revised SVI-B21-T2010 & SVI-B21-T2202 to Allow Completion of Instrument Check Valve Testing
type: Subject
label: 05000440/LER-1997-011, :on 970921,TS Surveillance Test Performance Resulted in Esfas.Caused by Procedure Weakness.Temporarily Revised SVI-B21-T2010 & SVI-B21-T2202 to Allow Completion of Instrument Check Valve Testing
page: https://kanterella.com/05000440/LER-2D1997-2D011-2C_-3Aon_970921-2CTS_Surveillance_Test_Performance_Resulted_in_Esfas.Caused_by_Procedure_Weakness.Temporarily_Revised_SVI-2DB21-2DT2010_-26_SVI-2DB21-2…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000440/LER-1997-011, :on 970921,TS Surveillance Test Performance Resulted in Esfas.Caused by Procedure Weakness.Temporarily Revised SVI-B21-T2010 & SVI-B21-T2202 to Allow Completion of Instrument Check Valve Testing

05000289/LER-1999-001-01, :on 990122,short Sections of Piping Caused by Misplacement of Sensing Elements & Insulation.Caused by Failure to Adhere to Vendor instruction.Re-installed Heat Trace Sys
type: Subject
page: https://kanterella.com/05000289/LER-2D1999-2D001-2D01-2C_-3Aon_990122-2Cshort_Sections_of_Piping_Caused_by_Misplacement_of_Sensing_Elements_-26_Insulation.Caused_by_Failure_to_Adhere_to_Vendor_instruc…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000289/LER-1999-001-01, :on 990122,short Sections of Piping Caused by Misplacement of Sensing Elements & Insulation.Caused by Failure to Adhere to Vendor instruction.Re-installed Heat Trace Sys

LER-1999-002-02, :on 990329,reactor Tripped.Caused by Failed Electrical Connections on Vibration Detector for Number 9 Main Turbine Bearing.Vibration Detectors for Main Turbine Number 9 Bearing Replaced.With
type: Subject
label: 05000324/LER-1999-002-02, :on 990329,reactor Tripped.Caused by Failed Electrical Connections on Vibration Detector for Number 9 Main Turbine Bearing.Vibration Detectors for Main Turbine Number 9 Bearing Replaced.With
page: https://kanterella.com/05000324/LER-2D1999-2D002-2D02-2C_-3Aon_990329-2Creactor_Tripped.Caused_by_Failed_Electrical_Connections_on_Vibration_Detector_for_Number_9_Main_Turbine_Bearing.Vibration_Detect…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000324/LER-1999-002-02, :on 990329,reactor Tripped.Caused by Failed Electrical Connections on Vibration Detector for Number 9 Main Turbine Bearing.Vibration Detectors for Main Turbine Number 9 Bearing Replaced.With

LER-1999-001-02, :on 990317,RCIC Sys Declared Inoperable.Caused by Inadequate Packing Compression on live-load Packing.Valve 2-E51-F008 Repacked & Tested in Accordance with Plant Procedures.With
type: Subject
label: 05000324/LER-1999-001-02, :on 990317,RCIC Sys Declared Inoperable.Caused by Inadequate Packing Compression on live-load Packing.Valve 2-E51-F008 Repacked & Tested in Accordance with Plant Procedures.With
page: https://kanterella.com/05000324/LER-2D1999-2D001-2D02-2C_-3Aon_990317-2CRCIC_Sys_Declared_Inoperable.Caused_by_Inadequate_Packing_Compression_on_live-2Dload_Packing.Valve_2-2DE51-2DF008_Repacked_-26_T…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000324/LER-1999-001-02, :on 990317,RCIC Sys Declared Inoperable.Caused by Inadequate Packing Compression on live-load Packing.Valve 2-E51-F008 Repacked & Tested in Accordance with Plant Procedures.With

LER-1999-002, :on 990212,potential Failure of Multiple Containment Monitoring Sys CIV (CM-V-1,2,3 & 4) Was Noted. Caused by Inappropriate Use of Vendor Info.Personnel Will Be Trained on Mgt Expectations.With
type: Subject
label: 05000289/LER-1999-002, :on 990212,potential Failure of Multiple Containment Monitoring Sys CIV (CM-V-1,2,3 & 4) Was Noted. Caused by Inappropriate Use of Vendor Info.Personnel Will Be Trained on Mgt Expectations.With
page: https://kanterella.com/05000289/LER-2D1999-2D002-2C_-3Aon_990212-2Cpotential_Failure_of_Multiple_Containment_Monitoring_Sys_CIV_-28CM-2DV-2D1-2C2-2C3_-26_4-29_Was_Noted._Caused_by_Inappropriate_Use_of…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000289/LER-1999-002, :on 990212,potential Failure of Multiple Containment Monitoring Sys CIV (CM-V-1,2,3 & 4) Was Noted. Caused by Inappropriate Use of Vendor Info.Personnel Will Be Trained on Mgt Expectations.With

05000302/LER-1998-015, :on 981203,raw Water Pumps Were Declared Inoperable Resulting in Entry Into ITS 3.0.3.Caused by Check Valve Failure.Valve Was Repaired & Placed Back Into Service. with
type: Subject
page: https://kanterella.com/05000302/LER-2D1998-2D015-2C_-3Aon_981203-2Craw_Water_Pumps_Were_Declared_Inoperable_Resulting_in_Entry_Into_ITS_3.0.3.Caused_by_Check_Valve_Failure.Valve_Was_Repaired_-26_Place…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000302/LER-1998-015, :on 981203,raw Water Pumps Were Declared Inoperable Resulting in Entry Into ITS 3.0.3.Caused by Check Valve Failure.Valve Was Repaired & Placed Back Into Service. with

LER-1998-004-02, :on 981120,failure to Perform Surveillance within Required Time Interval,Was Determined.Caused by Leaking Vent Valve.Engineering Personnel Evaluated Alternative Methods for Performing Channel Check
type: Subject
label: 05000327/LER-1998-004-02, :on 981120,failure to Perform Surveillance within Required Time Interval,Was Determined.Caused by Leaking Vent Valve.Engineering Personnel Evaluated Alternative Methods for Performing Channel Check
page: https://kanterella.com/05000327/LER-2D1998-2D004-2D02-2C_-3Aon_981120-2Cfailure_to_Perform_Surveillance_within_Required_Time_Interval-2CWas_Determined.Caused_by_Leaking_Vent_Valve.Engineering_Personne…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000327/LER-1998-004-02, :on 981120,failure to Perform Surveillance within Required Time Interval,Was Determined.Caused by Leaking Vent Valve.Engineering Personnel Evaluated Alternative Methods for Performing Channel Check

LER-1998-014-01, :on 981112,inadequate Source Range High Voltage Setpoint Led to Failure to Comply with Tss.Caused by Human Error.High Voltage Setpoint for Source Range N32 Was Adjusted to 1600 Vdc IAW W Technical Info.With
type: Subject
label: 05000412/LER-1998-014-01, :on 981112,inadequate Source Range High Voltage Setpoint Led to Failure to Comply with Tss.Caused by Human Error.High Voltage Setpoint for Source Range N32 Was Adjusted to 1600 Vdc IAW W Technical Info.With
page: https://kanterella.com/05000412/LER-2D1998-2D014-2D01-2C_-3Aon_981112-2Cinadequate_Source_Range_High_Voltage_Setpoint_Led_to_Failure_to_Comply_with_Tss.Caused_by_Human_Error.High_Voltage_Setpoint_for_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000412/LER-1998-014-01, :on 981112,inadequate Source Range High Voltage Setpoint Led to Failure to Comply with Tss.Caused by Human Error.High Voltage Setpoint for Source Range N32 Was Adjusted to 1600 Vdc IAW W Technical Info.With

05000348/LER-1998-004-03, :on 980909,turbine Trip & Consequent Reactor Trip Occurred.Caused by Reactor Protection Sys Card Failure. Failed Card Was Replaced & Unit 1 Returned to Power on 980910.With
type: Subject
page: https://kanterella.com/05000348/LER-2D1998-2D004-2D03-2C_-3Aon_980909-2Cturbine_Trip_-26_Consequent_Reactor_Trip_Occurred.Caused_by_Reactor_Protection_Sys_Card_Failure._Failed_Card_Was_Replaced_-26_Un…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000348/LER-1998-004-03, :on 980909,turbine Trip & Consequent Reactor Trip Occurred.Caused by Reactor Protection Sys Card Failure. Failed Card Was Replaced & Unit 1 Returned to Power on 980910.With

LER-1998-005-03, :on 980810,discovered That Two Nitrogen Gas Supply Check Valves to B hydrogen-oxygen Analyzer Were Not Being Tested.Caused by Missed Ist.Ist Data Base Is Being Reviewed to Assure Completeness & Accuracy.With
type: Subject
label: 05000354/LER-1998-005-03, :on 980810,discovered That Two Nitrogen Gas Supply Check Valves to B hydrogen-oxygen Analyzer Were Not Being Tested.Caused by Missed Ist.Ist Data Base Is Being Reviewed to Assure Completeness & Accuracy.With
page: https://kanterella.com/05000354/LER-2D1998-2D005-2D03-2C_-3Aon_980810-2Cdiscovered_That_Two_Nitrogen_Gas_Supply_Check_Valves_to_B_hydrogen-2Doxygen_Analyzer_Were_Not_Being_Tested.Caused_by_Missed_Ist.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000354/LER-1998-005-03, :on 980810,discovered That Two Nitrogen Gas Supply Check Valves to B hydrogen-oxygen Analyzer Were Not Being Tested.Caused by Missed Ist.Ist Data Base Is Being Reviewed to Assure Completeness & Accuracy.With

LER-1997-002-01, :on 970415,potential Reactor Coolant Sys Branch Connection Stresses Beyond Design Basis,Indicated.Caused by Mod Initiated to Remove RTD Bypass Line Isolation Valves. Stress Analysis Conducted on RTD Bypass Piping
type: Subject
label: 05000301/LER-1997-002-01, :on 970415,potential Reactor Coolant Sys Branch Connection Stresses Beyond Design Basis,Indicated.Caused by Mod Initiated to Remove RTD Bypass Line Isolation Valves. Stress Analysis Conducted on RTD Bypass Piping
page: https://kanterella.com/05000301/LER-2D1997-2D002-2D01-2C_-3Aon_970415-2Cpotential_Reactor_Coolant_Sys_Branch_Connection_Stresses_Beyond_Design_Basis-2CIndicated.Caused_by_Mod_Initiated_to_Remove_RTD_B…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000301/LER-1997-002-01, :on 970415,potential Reactor Coolant Sys Branch Connection Stresses Beyond Design Basis,Indicated.Caused by Mod Initiated to Remove RTD Bypass Line Isolation Valves. Stress Analysis Conducted on RTD Bypass Piping

05000315/LER-1985-043, :Corrective Actions & Preventive Measures Taken Re Discrepancies in Process Sensor Calibr Completed,Per Confirmatory Action Ltr Issued on 850820
type: Subject
page: https://kanterella.com/05000315/LER-2D1985-2D043-2C_-3ACorrective_Actions_-26_Preventive_Measures_Taken_Re_Discrepancies_in_Process_Sensor_Calibr_Completed-2CPer_Confirmatory_Action_Ltr_Issued_on_8508…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1985-043, :Corrective Actions & Preventive Measures Taken Re Discrepancies in Process Sensor Calibr Completed,Per Confirmatory Action Ltr Issued on 850820

LER-1997-023, :on 970508,discovered Noncompliant Emergency Lighting for Postulated App R Fires.Caused by Alternative Provisions Made in Original Safe Shutdown Analysis.Emergency Lights Will Be Installed
type: Subject
label: 05000266/LER-1997-023, :on 970508,discovered Noncompliant Emergency Lighting for Postulated App R Fires.Caused by Alternative Provisions Made in Original Safe Shutdown Analysis.Emergency Lights Will Be Installed
page: https://kanterella.com/05000266/LER-2D1997-2D023-2C_-3Aon_970508-2Cdiscovered_Noncompliant_Emergency_Lighting_for_Postulated_App_R_Fires.Caused_by_Alternative_Provisions_Made_in_Original_Safe_Shutdown…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000266/LER-1997-023, :on 970508,discovered Noncompliant Emergency Lighting for Postulated App R Fires.Caused by Alternative Provisions Made in Original Safe Shutdown Analysis.Emergency Lights Will Be Installed

LER-1997-008, :on 920408,determined That DG Undervoltage Relays Inoperable Due to Inadequate Process to Review Operability Requirements of Plant Equipment as Defined in Ts.Amend Requested to Change TS
type: Subject
label: 05000461/LER-1997-008, :on 920408,determined That DG Undervoltage Relays Inoperable Due to Inadequate Process to Review Operability Requirements of Plant Equipment as Defined in Ts.Amend Requested to Change TS
page: https://kanterella.com/05000461/LER-2D1997-2D008-2C_-3Aon_920408-2Cdetermined_That_DG_Undervoltage_Relays_Inoperable_Due_to_Inadequate_Process_to_Review_Operability_Requirements_of_Plant_Equipment_as_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000461/LER-1997-008, :on 920408,determined That DG Undervoltage Relays Inoperable Due to Inadequate Process to Review Operability Requirements of Plant Equipment as Defined in Ts.Amend Requested to Change TS

05000295/LER-1985-019-01, :on 850607,reactor Tripped & MSIVs Closed.Trip Caused by Removal of Source Range Fuses During Troubleshooting & Closure Caused by Failure of Summator. Module Replaced
type: Subject
page: https://kanterella.com/05000295/LER-2D1985-2D019-2D01-2C_-3Aon_850607-2Creactor_Tripped_-26_MSIVs_Closed.Trip_Caused_by_Removal_of_Source_Range_Fuses_During_Troubleshooting_-26_Closure_Caused_by_Failu…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000295/LER-1985-019-01, :on 850607,reactor Tripped & MSIVs Closed.Trip Caused by Removal of Source Range Fuses During Troubleshooting & Closure Caused by Failure of Summator. Module Replaced

LER-1996-007, :on 961023,identified Design Deficiency in Containment Isolation Function.Caused by Oversight During Plant Design.Implemented Administrative Controls to Preclude Subject Condition Prior to Plant start-up
type: Subject
label: 05000305/LER-1996-007, :on 961023,identified Design Deficiency in Containment Isolation Function.Caused by Oversight During Plant Design.Implemented Administrative Controls to Preclude Subject Condition Prior to Plant start-up
page: https://kanterella.com/05000305/LER-2D1996-2D007-2C_-3Aon_961023-2Cidentified_Design_Deficiency_in_Containment_Isolation_Function.Caused_by_Oversight_During_Plant_Design.Implemented_Administrative_Con…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000305/LER-1996-007, :on 961023,identified Design Deficiency in Containment Isolation Function.Caused by Oversight During Plant Design.Implemented Administrative Controls to Preclude Subject Condition Prior to Plant start-up

LER-1997-001, :on 970109,identified That Certain Obstructions to Flow of Flood Water Off Site May Produce Flood Levels Exceeding Elevations Specified in Fsar.Caused by Misapplication of Design Inputs
type: Subject
label: 05000443/LER-1997-001, :on 970109,identified That Certain Obstructions to Flow of Flood Water Off Site May Produce Flood Levels Exceeding Elevations Specified in Fsar.Caused by Misapplication of Design Inputs
page: https://kanterella.com/05000443/LER-2D1997-2D001-2C_-3Aon_970109-2Cidentified_That_Certain_Obstructions_to_Flow_of_Flood_Water_Off_Site_May_Produce_Flood_Levels_Exceeding_Elevations_Specified_in_Fsar.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000443/LER-1997-001, :on 970109,identified That Certain Obstructions to Flow of Flood Water Off Site May Produce Flood Levels Exceeding Elevations Specified in Fsar.Caused by Misapplication of Design Inputs

05000285/LER-1996-008, :on 961011,ventilation Isolation Actuation Signal Occurred.Due to High Containment Activity.Plant Procedures Will Be Reviewed & Revised
type: Subject
page: https://kanterella.com/05000285/LER-2D1996-2D008-2C_-3Aon_961011-2Cventilation_Isolation_Actuation_Signal_Occurred.Due_to_High_Containment_Activity.Plant_Procedures_Will_Be_Reviewed_-26_Revised
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000285/LER-1996-008, :on 961011,ventilation Isolation Actuation Signal Occurred.Due to High Containment Activity.Plant Procedures Will Be Reviewed & Revised

LER-1996-010, :on 961202,missed Surveillance on Slave Relay Occurred.Caused by Personnel Oversight in Not Individually Tasking Each Surveillance Contained in Stps.Review Will Be Completed by 970228
type: Subject
label: 05000395/LER-1996-010, :on 961202,missed Surveillance on Slave Relay Occurred.Caused by Personnel Oversight in Not Individually Tasking Each Surveillance Contained in Stps.Review Will Be Completed by 970228
page: https://kanterella.com/05000395/LER-2D1996-2D010-2C_-3Aon_961202-2Cmissed_Surveillance_on_Slave_Relay_Occurred.Caused_by_Personnel_Oversight_in_Not_Individually_Tasking_Each_Surveillance_Contained_in_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000395/LER-1996-010, :on 961202,missed Surveillance on Slave Relay Occurred.Caused by Personnel Oversight in Not Individually Tasking Each Surveillance Contained in Stps.Review Will Be Completed by 970228

LER-1996-013-01, :on 961116,reactor Protection & Primary Containment Isolation Sys Actuation on False Low Reactor Water Level Occurred Due to Personnel Error.Instrument Surveillance Procedure Changed
type: Subject
label: 05000333/LER-1996-013-01, :on 961116,reactor Protection & Primary Containment Isolation Sys Actuation on False Low Reactor Water Level Occurred Due to Personnel Error.Instrument Surveillance Procedure Changed
page: https://kanterella.com/05000333/LER-2D1996-2D013-2D01-2C_-3Aon_961116-2Creactor_Protection_-26_Primary_Containment_Isolation_Sys_Actuation_on_False_Low_Reactor_Water_Level_Occurred_Due_to_Personnel_Er…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000333/LER-1996-013-01, :on 961116,reactor Protection & Primary Containment Isolation Sys Actuation on False Low Reactor Water Level Occurred Due to Personnel Error.Instrument Surveillance Procedure Changed

05000285/LER-1996-012, :on 961111,potential for Vaporizing Cooling Water in Containment Fan Cooling Units Occurred.Caused by Loop Coincident with Loca.Analyses Have Been Performed
type: Subject
page: https://kanterella.com/05000285/LER-2D1996-2D012-2C_-3Aon_961111-2Cpotential_for_Vaporizing_Cooling_Water_in_Containment_Fan_Cooling_Units_Occurred.Caused_by_Loop_Coincident_with_Loca.Analyses_Have_Be…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000285/LER-1996-012, :on 961111,potential for Vaporizing Cooling Water in Containment Fan Cooling Units Occurred.Caused by Loop Coincident with Loca.Analyses Have Been Performed

LER-1996-015, :on 961019,determined Suppression Chamber Water Level Operating Range of -27 to -31 Inches Required by TS 3.6.2.1 Was Not Equivalent to Water Vols.Caused by Inadequate Calculations.Controls Established
type: Subject
label: 05000325/LER-1996-015, :on 961019,determined Suppression Chamber Water Level Operating Range of -27 to -31 Inches Required by TS 3.6.2.1 Was Not Equivalent to Water Vols.Caused by Inadequate Calculations.Controls Established
page: https://kanterella.com/05000325/LER-2D1996-2D015-2C_-3Aon_961019-2Cdetermined_Suppression_Chamber_Water_Level_Operating_Range_of_-2D27_to_-2D31_Inches_Required_by_TS_3.6.2.1_Was_Not_Equivalent_to_Wate…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000325/LER-1996-015, :on 961019,determined Suppression Chamber Water Level Operating Range of -27 to -31 Inches Required by TS 3.6.2.1 Was Not Equivalent to Water Vols.Caused by Inadequate Calculations.Controls Established

05000410/LER-2020-001, Manual Scram Due to an Electro Hydraulic Control Fluid Leak on the Turbine Control System
type: Subject
page: https://kanterella.com/05000410/LER-2D2020-2D001-2C_Manual_Scram_Due_to_an_Electro_Hydraulic_Control_Fluid_Leak_on_the_Turbine_Control_System
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000410/LER-2020-001, Manual Scram Due to an Electro Hydraulic Control Fluid Leak on the Turbine Control System

As Will Be Determined as Necessary from Results of Root Cause Evaluation
type: Subject
label: 05000266/LER-1996-006, :on 960813,emergency Power Out of Service Coincident with Opposite Train SW Pump.Root Cause Evaluation Being Performed.C/As Will Be Determined as Necessary from Results of Root Cause Evaluation
page: https://kanterella.com/05000266/LER-2D1996-2D006-2C_-3Aon_960813-2Cemergency_Power_Out_of_Service_Coincident_with_Opposite_Train_SW_Pump.Root_Cause_Evaluation_Being_Performed.C/As_Will_Be_Determined_a…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000266/LER-1996-006, :on 960813,emergency Power Out of Service Coincident with Opposite Train SW Pump.Root Cause Evaluation Being Performed.C/As Will Be Determined as Necessary from Results of Root Cause Evaluation

LER-1995-005, :on 951012,invalid Heat Sink Protection Sys Actuation Occurred.Caused by Failure of Two Logic Modules. Continued Daily Inspections of Hsps Cabinet Lamps & Counseled Personnel Re Communication Technique
type: Subject
label: 05000289/LER-1995-005, :on 951012,invalid Heat Sink Protection Sys Actuation Occurred.Caused by Failure of Two Logic Modules. Continued Daily Inspections of Hsps Cabinet Lamps & Counseled Personnel Re Communication Technique
page: https://kanterella.com/05000289/LER-2D1995-2D005-2C_-3Aon_951012-2Cinvalid_Heat_Sink_Protection_Sys_Actuation_Occurred.Caused_by_Failure_of_Two_Logic_Modules._Continued_Daily_Inspections_of_Hsps_Cabin…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000289/LER-1995-005, :on 951012,invalid Heat Sink Protection Sys Actuation Occurred.Caused by Failure of Two Logic Modules. Continued Daily Inspections of Hsps Cabinet Lamps & Counseled Personnel Re Communication Technique

LER-1996-011, :on 960412,identified Circuits Not Being Appropriately Tested Per Improved Ts.Caused by Human Error. Applicable Surveillance Procedure Revised to Incorporate Testing of ESFAS Logic for Circuits
type: Subject
label: 05000302/LER-1996-011, :on 960412,identified Circuits Not Being Appropriately Tested Per Improved Ts.Caused by Human Error. Applicable Surveillance Procedure Revised to Incorporate Testing of ESFAS Logic for Circuits
page: https://kanterella.com/05000302/LER-2D1996-2D011-2C_-3Aon_960412-2Cidentified_Circuits_Not_Being_Appropriately_Tested_Per_Improved_Ts.Caused_by_Human_Error._Applicable_Surveillance_Procedure_Revised_t…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000302/LER-1996-011, :on 960412,identified Circuits Not Being Appropriately Tested Per Improved Ts.Caused by Human Error. Applicable Surveillance Procedure Revised to Incorporate Testing of ESFAS Logic for Circuits

G Set Voltage Regulator
type: Subject
label: 05000382/LER-1996-006-01, :on 960517,reactor Trip Occurred.Caused by Failed Component & Original Design Inadequacies.Replaced Both Motor/Generator (M/G) Set Overvoltage Relays & Replaced a M/G Set Voltage Regulator
page: https://kanterella.com/05000382/LER-2D1996-2D006-2D01-2C_-3Aon_960517-2Creactor_Trip_Occurred.Caused_by_Failed_Component_-26_Original_Design_Inadequacies.Replaced_Both_Motor/Generator_-28M/G-29_Set_Ov…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000382/LER-1996-006-01, :on 960517,reactor Trip Occurred.Caused by Failed Component & Original Design Inadequacies.Replaced Both Motor/Generator (M/G) Set Overvoltage Relays & Replaced a M/G Set Voltage Regulator

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 368A
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

LER-1996-004, :on 960315,discovered Adequate Shutdown Margin Was Not Maintained.Caused by Inadequate Technical Review by Plant Personnel Involved in Reviewing Procedure Change. Appropriate Personnel Trained on Incident
type: Subject
label: 05000285/LER-1996-004, :on 960315,discovered Adequate Shutdown Margin Was Not Maintained.Caused by Inadequate Technical Review by Plant Personnel Involved in Reviewing Procedure Change. Appropriate Personnel Trained on Incident
page: https://kanterella.com/05000285/LER-2D1996-2D004-2C_-3Aon_960315-2Cdiscovered_Adequate_Shutdown_Margin_Was_Not_Maintained.Caused_by_Inadequate_Technical_Review_by_Plant_Personnel_Involved_in_Reviewing…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000285/LER-1996-004, :on 960315,discovered Adequate Shutdown Margin Was Not Maintained.Caused by Inadequate Technical Review by Plant Personnel Involved in Reviewing Procedure Change. Appropriate Personnel Trained on Incident

LER-1995-020, :on 951202,RCS Pressure Boundary Leak from Valve Bonnet Stem leak-off Pipe Occurred.Caused by Crack Near Toe of Fillet Weld Between Pipe & Valve Body.Removed Pipe & Valve Bonnet Weld
type: Subject
label: 05000423/LER-1995-020, :on 951202,RCS Pressure Boundary Leak from Valve Bonnet Stem leak-off Pipe Occurred.Caused by Crack Near Toe of Fillet Weld Between Pipe & Valve Body.Removed Pipe & Valve Bonnet Weld
page: https://kanterella.com/05000423/LER-2D1995-2D020-2C_-3Aon_951202-2CRCS_Pressure_Boundary_Leak_from_Valve_Bonnet_Stem_leak-2Doff_Pipe_Occurred.Caused_by_Crack_Near_Toe_of_Fillet_Weld_Between_Pipe_-26_V…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000423/LER-1995-020, :on 951202,RCS Pressure Boundary Leak from Valve Bonnet Stem leak-off Pipe Occurred.Caused by Crack Near Toe of Fillet Weld Between Pipe & Valve Body.Removed Pipe & Valve Bonnet Weld

LER-1996-003-01, :on 960130,logarithmic Power Channels Indicated 5 Percent of Scale Below Actual Power.Caused by Not Periodically cross-correlating Log Power to Linear Power. Recalibrated Log Power Channels
type: Subject
label: 05000382/LER-1996-003-01, :on 960130,logarithmic Power Channels Indicated 5 Percent of Scale Below Actual Power.Caused by Not Periodically cross-correlating Log Power to Linear Power. Recalibrated Log Power Channels
page: https://kanterella.com/05000382/LER-2D1996-2D003-2D01-2C_-3Aon_960130-2Clogarithmic_Power_Channels_Indicated_5_Percent_of_Scale_Below_Actual_Power.Caused_by_Not_Periodically_cross-2Dcorrelating_Log_Po…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000382/LER-1996-003-01, :on 960130,logarithmic Power Channels Indicated 5 Percent of Scale Below Actual Power.Caused by Not Periodically cross-correlating Log Power to Linear Power. Recalibrated Log Power Channels

05000301/LER-1995-006-01, :on 951125,PORV post-maint Testing Was Not Performed Prior to Establishing Ltop.Caused by Inadequate Control of post-maint Testing.Established TS Compliance by Venting RCS
type: Subject
page: https://kanterella.com/05000301/LER-2D1995-2D006-2D01-2C_-3Aon_951125-2CPORV_post-2Dmaint_Testing_Was_Not_Performed_Prior_to_Establishing_Ltop.Caused_by_Inadequate_Control_of_post-2Dmaint_Testing.Esta…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000301/LER-1995-006-01, :on 951125,PORV post-maint Testing Was Not Performed Prior to Establishing Ltop.Caused by Inadequate Control of post-maint Testing.Established TS Compliance by Venting RCS

05000301/LER-1995-005-01, :on 951025,plugged 46 Tubes Due to Degradation in Roll Transition,Tubesheet Crevice & Tube Support Plate Regions.Performed Closeout Insps Following Maint of Each Sg
type: Subject
page: https://kanterella.com/05000301/LER-2D1995-2D005-2D01-2C_-3Aon_951025-2Cplugged_46_Tubes_Due_to_Degradation_in_Roll_Transition-2CTubesheet_Crevice_-26_Tube_Support_Plate_Regions.Performed_Closeout_Ins…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000301/LER-1995-005-01, :on 951025,plugged 46 Tubes Due to Degradation in Roll Transition,Tubesheet Crevice & Tube Support Plate Regions.Performed Closeout Insps Following Maint of Each Sg

05000354/LER-1995-025-01, :on 951024,HPCI Sys Was Declared Inoperable Due to Out of Adjustment Limit Switch.Replaced Limit Switch & Repaired HPCI Turbine Steam Admission Valve
type: Subject
page: https://kanterella.com/05000354/LER-2D1995-2D025-2D01-2C_-3Aon_951024-2CHPCI_Sys_Was_Declared_Inoperable_Due_to_Out_of_Adjustment_Limit_Switch.Replaced_Limit_Switch_-26_Repaired_HPCI_Turbine_Steam_Adm…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000354/LER-1995-025-01, :on 951024,HPCI Sys Was Declared Inoperable Due to Out of Adjustment Limit Switch.Replaced Limit Switch & Repaired HPCI Turbine Steam Admission Valve

05000328/LER-1995-006-02, :on 951001,failed to Maintain Two Qualified Offsite Power Sources Due to Inadequate Training.Will Provide Licensed Operator Training
type: Subject
page: https://kanterella.com/05000328/LER-2D1995-2D006-2D02-2C_-3Aon_951001-2Cfailed_to_Maintain_Two_Qualified_Offsite_Power_Sources_Due_to_Inadequate_Training.Will_Provide_Licensed_Operator_Training
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000328/LER-1995-006-02, :on 951001,failed to Maintain Two Qualified Offsite Power Sources Due to Inadequate Training.Will Provide Licensed Operator Training

LER-1995-002-01, :on 950323,found Multiple Cl Sensors Used for Control Bldg Isolation Logic to Be Outside TS Tolerances During Routine Calibr.Caused by Design Deficiency. Re-evaluated Design Changes to Maintain Control Bldg Sensor
type: Subject
label: 05000325/LER-1995-002-01, :on 950323,found Multiple Cl Sensors Used for Control Bldg Isolation Logic to Be Outside TS Tolerances During Routine Calibr.Caused by Design Deficiency. Re-evaluated Design Changes to Maintain Control Bldg Sensor
page: https://kanterella.com/05000325/LER-2D1995-2D002-2D01-2C_-3Aon_950323-2Cfound_Multiple_Cl_Sensors_Used_for_Control_Bldg_Isolation_Logic_to_Be_Outside_TS_Tolerances_During_Routine_Calibr.Caused_by_Desi…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000325/LER-1995-002-01, :on 950323,found Multiple Cl Sensors Used for Control Bldg Isolation Logic to Be Outside TS Tolerances During Routine Calibr.Caused by Design Deficiency. Re-evaluated Design Changes to Maintain Control Bldg Sensor

05000285/LER-1994-011, :on 941228,SR for SG Level Check Was Unsatisfied.Caused by Inadequate Review.Dept Personnel Trained on Event
type: Subject
page: https://kanterella.com/05000285/LER-2D1994-2D011-2C_-3Aon_941228-2CSR_for_SG_Level_Check_Was_Unsatisfied.Caused_by_Inadequate_Review.Dept_Personnel_Trained_on_Event
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000285/LER-1994-011, :on 941228,SR for SG Level Check Was Unsatisfied.Caused by Inadequate Review.Dept Personnel Trained on Event

LER-1994-032, :on 941214,Division III DG Failed Due to Improper Synchronization Attempt by Operator.Considered Disciplinary Action for Individual Involved & Continued Performance That Monitored Testing of DG
type: Subject
label: 05000458/LER-1994-032, :on 941214,Division III DG Failed Due to Improper Synchronization Attempt by Operator.Considered Disciplinary Action for Individual Involved & Continued Performance That Monitored Testing of DG
page: https://kanterella.com/05000458/LER-2D1994-2D032-2C_-3Aon_941214-2CDivision_III_DG_Failed_Due_to_Improper_Synchronization_Attempt_by_Operator.Considered_Disciplinary_Action_for_Individual_Involved_-26…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000458/LER-1994-032, :on 941214,Division III DG Failed Due to Improper Synchronization Attempt by Operator.Considered Disciplinary Action for Individual Involved & Continued Performance That Monitored Testing of DG

LER-1994-023, :on 940908,reactor Scrammed Due to Spurious Signals from Undamped Rosemount Model 1153 Transmitters. Conditions Leading to Failure Determinded to Be Reportable Per 10CFR21.Model 1153 Transmitters Replaced
type: Subject
label: 05000458/LER-1994-023, :on 940908,reactor Scrammed Due to Spurious Signals from Undamped Rosemount Model 1153 Transmitters. Conditions Leading to Failure Determinded to Be Reportable Per 10CFR21.Model 1153 Transmitters Replaced
page: https://kanterella.com/05000458/LER-2D1994-2D023-2C_-3Aon_940908-2Creactor_Scrammed_Due_to_Spurious_Signals_from_Undamped_Rosemount_Model_1153_Transmitters._Conditions_Leading_to_Failure_Determinded_t…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000458/LER-1994-023, :on 940908,reactor Scrammed Due to Spurious Signals from Undamped Rosemount Model 1153 Transmitters. Conditions Leading to Failure Determinded to Be Reportable Per 10CFR21.Model 1153 Transmitters Replaced

Fsar Chapter 7.5.Caused by Utility Personnel Not Aware of Surveillance Procedures
type: Subject
label: 05000483/LER-1994-003, :on 940708,QA Engineer Surveillance of Radiation Monitors Indicated Utility Engineering Evaluation Conflicted W/Fsar Chapter 7.5.Caused by Utility Personnel Not Aware of Surveillance Procedures
page: https://kanterella.com/05000483/LER-2D1994-2D003-2C_-3Aon_940708-2CQA_Engineer_Surveillance_of_Radiation_Monitors_Indicated_Utility_Engineering_Evaluation_Conflicted_W/Fsar_Chapter_7.5.Caused_by_Utili…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000483/LER-1994-003, :on 940708,QA Engineer Surveillance of Radiation Monitors Indicated Utility Engineering Evaluation Conflicted W/Fsar Chapter 7.5.Caused by Utility Personnel Not Aware of Surveillance Procedures

ML20077H463
type: Subject
page: https://kanterella.com/ML20077H463
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML20077H463

LER-1994-004-09, :on 940423,discovered That Oc Waste Gas Decay Had Not Been Sampled After Radioactive Matls Added.Caused by Poor Work Practices & Inadequate Training.Corrective Action:Personnel Retrained
type: Subject
label: 05000454/LER-1994-004-09, :on 940423,discovered That Oc Waste Gas Decay Had Not Been Sampled After Radioactive Matls Added.Caused by Poor Work Practices & Inadequate Training.Corrective Action:Personnel Retrained
page: https://kanterella.com/05000454/LER-2D1994-2D004-2D09-2C_-3Aon_940423-2Cdiscovered_That_Oc_Waste_Gas_Decay_Had_Not_Been_Sampled_After_Radioactive_Matls_Added.Caused_by_Poor_Work_Practices_-26_Inadequa…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000454/LER-1994-004-09, :on 940423,discovered That Oc Waste Gas Decay Had Not Been Sampled After Radioactive Matls Added.Caused by Poor Work Practices & Inadequate Training.Corrective Action:Personnel Retrained

05000317/LER-1994-003, :on 940321,noticed Leakage from Rcs.Caused by Pwscc.Corrective Action:Sleeve Location B-3 & FF-1 Have Been Plugged W/Alloy 690 Plug Welded to Outer Diameter of Pzr Lower Head
type: Subject
page: https://kanterella.com/05000317/LER-2D1994-2D003-2C_-3Aon_940321-2Cnoticed_Leakage_from_Rcs.Caused_by_Pwscc.Corrective_Action-3ASleeve_Location_B-2D3_-26_FF-2D1_Have_Been_Plugged_W/Alloy_690_Plug_Weld…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000317/LER-1994-003, :on 940321,noticed Leakage from Rcs.Caused by Pwscc.Corrective Action:Sleeve Location B-3 & FF-1 Have Been Plugged W/Alloy 690 Plug Welded to Outer Diameter of Pzr Lower Head

During Routine Maint on 940119 Due to Improperly Prepared Work Document.License Amend Process Revised
type: Subject
label: 05000331/LER-1994-003, :on 940124,determined That TS Table 3.2-A Action Statement for Off Gas Vent RMs Not Complied W/During Routine Maint on 940119 Due to Improperly Prepared Work Document.License Amend Process Revised
page: https://kanterella.com/05000331/LER-2D1994-2D003-2C_-3Aon_940124-2Cdetermined_That_TS_Table_3.2-2DA_Action_Statement_for_Off_Gas_Vent_RMs_Not_Complied_W/During_Routine_Maint_on_940119_Due_to_Improperl…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000331/LER-1994-003, :on 940124,determined That TS Table 3.2-A Action Statement for Off Gas Vent RMs Not Complied W/During Routine Maint on 940119 Due to Improperly Prepared Work Document.License Amend Process Revised

LER-1994-002-09, :on 940309,main Steam Safety Valves Setpoints Found Out of Tolerance Due to Calculation Error.Amend to TSs to Allow Tolerance of +3- Requested.Valve Setpoints Will Be Retested by 940509
type: Subject
label: 05000454/LER-1994-002-09, :on 940309,main Steam Safety Valves Setpoints Found Out of Tolerance Due to Calculation Error.Amend to TSs to Allow Tolerance of +3% Requested.Valve Setpoints Will Be Retested by 940509
page: https://kanterella.com/05000454/LER-2D1994-2D002-2D09-2C_-3Aon_940309-2Cmain_Steam_Safety_Valves_Setpoints_Found_Out_of_Tolerance_Due_to_Calculation_Error.Amend_to_TSs_to_Allow_Tolerance_of_-2B3-_Requ…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000454/LER-1994-002-09, :on 940309,main Steam Safety Valves Setpoints Found Out of Tolerance Due to Calculation Error.Amend to TSs to Allow Tolerance of +3% Requested.Valve Setpoints Will Be Retested by 940509

LER-1993-007-01, :on 931229,performance Test Indicated Possibility of SRW Heat Exchanger Inoperability.Caused by Original Design Calculations Assuming Min SRW Flow Was Not Limiting Case.Hxs Determined Operable
type: Subject
label: 05000317/LER-1993-007-01, :on 931229,performance Test Indicated Possibility of SRW Heat Exchanger Inoperability.Caused by Original Design Calculations Assuming Min SRW Flow Was Not Limiting Case.Hxs Determined Operable
page: https://kanterella.com/05000317/LER-2D1993-2D007-2D01-2C_-3Aon_931229-2Cperformance_Test_Indicated_Possibility_of_SRW_Heat_Exchanger_Inoperability.Caused_by_Original_Design_Calculations_Assuming_Min_S…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000317/LER-1993-007-01, :on 931229,performance Test Indicated Possibility of SRW Heat Exchanger Inoperability.Caused by Original Design Calculations Assuming Min SRW Flow Was Not Limiting Case.Hxs Determined Operable

LER-1993-015, :on 930630,HPCI Sys Declared Inoperable Due to Indicated Flow During Surveillance.Caused by Foreign Matl That Plugged Portion of Restricting Orifice.Restricting Orifice Removed,Cleaned & Reinstalled
type: Subject
label: 05000293/LER-1993-015, :on 930630,HPCI Sys Declared Inoperable Due to Indicated Flow During Surveillance.Caused by Foreign Matl That Plugged Portion of Restricting Orifice.Restricting Orifice Removed,Cleaned & Reinstalled
page: https://kanterella.com/05000293/LER-2D1993-2D015-2C_-3Aon_930630-2CHPCI_Sys_Declared_Inoperable_Due_to_Indicated_Flow_During_Surveillance.Caused_by_Foreign_Matl_That_Plugged_Portion_of_Restricting_Ori…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000293/LER-1993-015, :on 930630,HPCI Sys Declared Inoperable Due to Indicated Flow During Surveillance.Caused by Foreign Matl That Plugged Portion of Restricting Orifice.Restricting Orifice Removed,Cleaned & Reinstalled

Personnel Re Attention to Detail
type: Subject
label: 05000293/LER-1993-010, :on 930519,SUT Became de-energized During Planned Calibr of Turbine/Generator Relays Lockout Test While Shut Down.Caused by Personnel Error.Discussion Conducted W/Personnel Re Attention to Detail
page: https://kanterella.com/05000293/LER-2D1993-2D010-2C_-3Aon_930519-2CSUT_Became_de-2Denergized_During_Planned_Calibr_of_Turbine/Generator_Relays_Lockout_Test_While_Shut_Down.Caused_by_Personnel_Error.Di…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000293/LER-1993-010, :on 930519,SUT Became de-energized During Planned Calibr of Turbine/Generator Relays Lockout Test While Shut Down.Caused by Personnel Error.Discussion Conducted W/Personnel Re Attention to Detail

05000410/LER-2019-001, High Pressure Core Spray Declared Inoperable
type: Subject
page: https://kanterella.com/05000410/LER-2D2019-2D001-2C_High_Pressure_Core_Spray_Declared_Inoperable
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000410/LER-2019-001, High Pressure Core Spray Declared Inoperable

ML20034G118
type: Subject
page: https://kanterella.com/ML20034G118
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML20034G118

ML20063M280
type: Subject
page: https://kanterella.com/ML20063M280
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML20063M280

LER-1989-014-01, :on 891108,routine Radiation Barrier Check Identified Faulty Door Locking Mechanism on North Door to East Valve Trench Area.Caused by Welded Latching Mechanism. Locking Mechanism Modified
type: Subject
label: 05000334/LER-1989-014-01, :on 891108,routine Radiation Barrier Check Identified Faulty Door Locking Mechanism on North Door to East Valve Trench Area.Caused by Welded Latching Mechanism. Locking Mechanism Modified
page: https://kanterella.com/05000334/LER-2D1989-2D014-2D01-2C_-3Aon_891108-2Croutine_Radiation_Barrier_Check_Identified_Faulty_Door_Locking_Mechanism_on_North_Door_to_East_Valve_Trench_Area.Caused_by_Welde…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000334/LER-1989-014-01, :on 891108,routine Radiation Barrier Check Identified Faulty Door Locking Mechanism on North Door to East Valve Trench Area.Caused by Welded Latching Mechanism. Locking Mechanism Modified

05000425/LER-2019-002, Microswitch Failure Causes Closure of Main Steam Isolation Valve and Subsequent Automatic Reactor Trip
type: Subject
page: https://kanterella.com/05000425/LER-2D2019-2D002-2C_Microswitch_Failure_Causes_Closure_of_Main_Steam_Isolation_Valve_and_Subsequent_Automatic_Reactor_Trip
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000425/LER-2019-002, Microswitch Failure Causes Closure of Main Steam Isolation Valve and Subsequent Automatic Reactor Trip

05000364/LER-2019-002, Manual Reactor Trip Due to Misaligned Rod During Low Power Physics Testing
type: Subject
page: https://kanterella.com/05000364/LER-2D2019-2D002-2C_Manual_Reactor_Trip_Due_to_Misaligned_Rod_During_Low_Power_Physics_Testing
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000364/LER-2019-002, Manual Reactor Trip Due to Misaligned Rod During Low Power Physics Testing

LER-1992-006-03, :on 920419,filter Exhaust Fan 1-VS-F-58B Tripped Due to Excessive Vacuum.Caused by Auxiliary Ventilation Exhaust Filter Sys Train B Filters Being Near End of Svc Life.Fan Was Restarted
type: Subject
label: 05000280/LER-1992-006-03, :on 920419,filter Exhaust Fan 1-VS-F-58B Tripped Due to Excessive Vacuum.Caused by Auxiliary Ventilation Exhaust Filter Sys Train B Filters Being Near End of Svc Life.Fan Was Restarted
page: https://kanterella.com/05000280/LER-2D1992-2D006-2D03-2C_-3Aon_920419-2Cfilter_Exhaust_Fan_1-2DVS-2DF-2D58B_Tripped_Due_to_Excessive_Vacuum.Caused_by_Auxiliary_Ventilation_Exhaust_Filter_Sys_Train_B_F…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1992-006-03, :on 920419,filter Exhaust Fan 1-VS-F-58B Tripped Due to Excessive Vacuum.Caused by Auxiliary Ventilation Exhaust Filter Sys Train B Filters Being Near End of Svc Life.Fan Was Restarted

Bypass Valve 2-MS-155 Rendered Valve Incapable of Immediate Closure.Caused by Failure of Yolk Bushing Threads in Valve.Valve Closed
type: Subject
label: 05000281/LER-1991-010-03, :on 911031,determined That Damage to C Main Steam Trip Valve/Bypass Valve 2-MS-155 Rendered Valve Incapable of Immediate Closure.Caused by Failure of Yolk Bushing Threads in Valve.Valve Closed
page: https://kanterella.com/05000281/LER-2D1991-2D010-2D03-2C_-3Aon_911031-2Cdetermined_That_Damage_to_C_Main_Steam_Trip_Valve/Bypass_Valve_2-2DMS-2D155_Rendered_Valve_Incapable_of_Immediate_Closure.Caused…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1991-010-03, :on 911031,determined That Damage to C Main Steam Trip Valve/Bypass Valve 2-MS-155 Rendered Valve Incapable of Immediate Closure.Caused by Failure of Yolk Bushing Threads in Valve.Valve Closed

LER-1992-004-02, :on 920326,B Chiller Became Inoperable Due to Hand Operated Rocker Switch Inadvertently Being Placed in Off Position.Chiller Returned to Svc.Upgrade to Sys Will Include Installation of Two Chillers
type: Subject
label: 05000281/LER-1992-004-02, :on 920326,B Chiller Became Inoperable Due to Hand Operated Rocker Switch Inadvertently Being Placed in Off Position.Chiller Returned to Svc.Upgrade to Sys Will Include Installation of Two Chillers
page: https://kanterella.com/05000281/LER-2D1992-2D004-2D02-2C_-3Aon_920326-2CB_Chiller_Became_Inoperable_Due_to_Hand_Operated_Rocker_Switch_Inadvertently_Being_Placed_in_Off_Position.Chiller_Returned_to_Sv…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1992-004-02, :on 920326,B Chiller Became Inoperable Due to Hand Operated Rocker Switch Inadvertently Being Placed in Off Position.Chiller Returned to Svc.Upgrade to Sys Will Include Installation of Two Chillers

LER-1989-042, :on 891031,leak Detected Through Crack in Fillet Weld on Socket Tee Connecting Drain Line to Letdown Line Which Exceeded Allowable Type C Leakage.Caused by Vibration.Line & Valve Configuration Changed
type: Subject
label: 05000280/LER-1989-042, :on 891031,leak Detected Through Crack in Fillet Weld on Socket Tee Connecting Drain Line to Letdown Line Which Exceeded Allowable Type C Leakage.Caused by Vibration.Line & Valve Configuration Changed
page: https://kanterella.com/05000280/LER-2D1989-2D042-2C_-3Aon_891031-2Cleak_Detected_Through_Crack_in_Fillet_Weld_on_Socket_Tee_Connecting_Drain_Line_to_Letdown_Line_Which_Exceeded_Allowable_Type_C_Leakag…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1989-042, :on 891031,leak Detected Through Crack in Fillet Weld on Socket Tee Connecting Drain Line to Letdown Line Which Exceeded Allowable Type C Leakage.Caused by Vibration.Line & Valve Configuration Changed

LER-1988-001, :on 880127,discovered That Leakage Through Containment Isolation Valves TV-SS-201A & TV-SS-201B Greater than ASME Section XI Spec.On 880202,wrong Leads Lifted for Trip Valves.Caused by Impurities in Sys
type: Subject
label: 05000281/LER-1988-001, :on 880127,discovered That Leakage Through Containment Isolation Valves TV-SS-201A & TV-SS-201B Greater than ASME Section XI Spec.On 880202,wrong Leads Lifted for Trip Valves.Caused by Impurities in Sys
page: https://kanterella.com/05000281/LER-2D1988-2D001-2C_-3Aon_880127-2Cdiscovered_That_Leakage_Through_Containment_Isolation_Valves_TV-2DSS-2D201A_-26_TV-2DSS-2D201B_Greater_than_ASME_Section_XI_Spec.On_8…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1988-001, :on 880127,discovered That Leakage Through Containment Isolation Valves TV-SS-201A & TV-SS-201B Greater than ASME Section XI Spec.On 880202,wrong Leads Lifted for Trip Valves.Caused by Impurities in Sys

LER-1988-046, :on 881231,alarm Received in Control Room Indicating That Valve 1-SW-263 Had Closed.Caused by Personnel Error.Operators Verified That No Fire Existed in Room 3.Valve Opened & Chiller C Restarted
type: Subject
label: 05000280/LER-1988-046, :on 881231,alarm Received in Control Room Indicating That Valve 1-SW-263 Had Closed.Caused by Personnel Error.Operators Verified That No Fire Existed in Room 3.Valve Opened & Chiller C Restarted
page: https://kanterella.com/05000280/LER-2D1988-2D046-2C_-3Aon_881231-2Calarm_Received_in_Control_Room_Indicating_That_Valve_1-2DSW-2D263_Had_Closed.Caused_by_Personnel_Error.Operators_Verified_That_No_Fir…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-046, :on 881231,alarm Received in Control Room Indicating That Valve 1-SW-263 Had Closed.Caused by Personnel Error.Operators Verified That No Fire Existed in Room 3.Valve Opened & Chiller C Restarted

LER-1989-001-02, :on 890105,loss of Containment Integrity Occurred During Refueling Operations.Caused by Loss of Administrative Controls Due to Procedural Deficiencies. Refueling Integrity Procedures Modified
type: Subject
label: 05000281/LER-1989-001-02, :on 890105,loss of Containment Integrity Occurred During Refueling Operations.Caused by Loss of Administrative Controls Due to Procedural Deficiencies. Refueling Integrity Procedures Modified
page: https://kanterella.com/05000281/LER-2D1989-2D001-2D02-2C_-3Aon_890105-2Closs_of_Containment_Integrity_Occurred_During_Refueling_Operations.Caused_by_Loss_of_Administrative_Controls_Due_to_Procedural_D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1989-001-02, :on 890105,loss of Containment Integrity Occurred During Refueling Operations.Caused by Loss of Administrative Controls Due to Procedural Deficiencies. Refueling Integrity Procedures Modified

Cc,Exceeding Tech Spec Limits.Caused by Iodine Spike Due to Fuel Element Defects
type: Subject
label: 05000280/LER-1988-035, :on 880914,specific Activity Sample of Reactor Coolant Showed Dose Equivalent I-131 Level of 1.04 Microcuries/Cc,Exceeding Tech Spec Limits.Caused by Iodine Spike Due to Fuel Element Defects
page: https://kanterella.com/05000280/LER-2D1988-2D035-2C_-3Aon_880914-2Cspecific_Activity_Sample_of_Reactor_Coolant_Showed_Dose_Equivalent_I-2D131_Level_of_1.04_Microcuries/Cc-2CExceeding_Tech_Spec_Limits.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-035, :on 880914,specific Activity Sample of Reactor Coolant Showed Dose Equivalent I-131 Level of 1.04 Microcuries/Cc,Exceeding Tech Spec Limits.Caused by Iodine Spike Due to Fuel Element Defects

LER-1995-003, :on 950224, as Found Calibration Test Data for Three RPS Transmitters Not within Allowable Tolerance. Caused by Faulty Pressure Gauge Used in Calibration.Pressure Gauge Replaced & Repeated Calibration Check
type: Subject
label: 05000281/LER-1995-003, :on 950224, as Found Calibration Test Data for Three RPS Transmitters Not within Allowable Tolerance. Caused by Faulty Pressure Gauge Used in Calibration.Pressure Gauge Replaced & Repeated Calibration Check
page: https://kanterella.com/05000281/LER-2D1995-2D003-2C_-3Aon_950224-2C_as_Found_Calibration_Test_Data_for_Three_RPS_Transmitters_Not_within_Allowable_Tolerance._Caused_by_Faulty_Pressure_Gauge_Used_in_Ca…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1995-003, :on 950224, as Found Calibration Test Data for Three RPS Transmitters Not within Allowable Tolerance. Caused by Faulty Pressure Gauge Used in Calibration.Pressure Gauge Replaced & Repeated Calibration Check

05000280/LER-1995-008, :on 950919,pressurizer Safety Valve Found Setpoint Out of Tolerance.Caused by Psvs Being Installed Prior to Start of Most Recent Operating Cycle
type: Subject
page: https://kanterella.com/05000280/LER-2D1995-2D008-2C_-3Aon_950919-2Cpressurizer_Safety_Valve_Found_Setpoint_Out_of_Tolerance.Caused_by_Psvs_Being_Installed_Prior_to_Start_of_Most_Recent_Operating_Cycle
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1995-008, :on 950919,pressurizer Safety Valve Found Setpoint Out of Tolerance.Caused by Psvs Being Installed Prior to Start of Most Recent Operating Cycle

05000280/LER-1996-001, :on 951213,ESW Pump Was Inoperable Due to Loss of Missile Protection for Piping.Revised DCP 91-025
type: Subject
page: https://kanterella.com/05000280/LER-2D1996-2D001-2C_-3Aon_951213-2CESW_Pump_Was_Inoperable_Due_to_Loss_of_Missile_Protection_for_Piping.Revised_DCP_91-2D025
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1996-001, :on 951213,ESW Pump Was Inoperable Due to Loss of Missile Protection for Piping.Revised DCP 91-025

05000280/LER-1997-005, :on 970502,Unit 1 Power Range Nuclear Instrumentation Was Inoperable Due to Personnel Error.Sro & STA That Were Involved in Event Were Counseled
type: Subject
page: https://kanterella.com/05000280/LER-2D1997-2D005-2C_-3Aon_970502-2CUnit_1_Power_Range_Nuclear_Instrumentation_Was_Inoperable_Due_to_Personnel_Error.Sro_-26_STA_That_Were_Involved_in_Event_Were_Counsel…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1997-005, :on 970502,Unit 1 Power Range Nuclear Instrumentation Was Inoperable Due to Personnel Error.Sro & STA That Were Involved in Event Were Counseled

05000280/LER-1996-003-02, :on 960513,control Room Air Handling Units (AHU) Declared Inoperable.Caused by Mechanical Failure. Adjusted 1-VS-AC-2 Backdraft Dampers Counterweight Arm for AHU 1-VS-AC-2
type: Subject
page: https://kanterella.com/05000280/LER-2D1996-2D003-2D02-2C_-3Aon_960513-2Ccontrol_Room_Air_Handling_Units_-28AHU-29_Declared_Inoperable.Caused_by_Mechanical_Failure._Adjusted_1-2DVS-2DAC-2D2_Backdraft_D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1996-003-02, :on 960513,control Room Air Handling Units (AHU) Declared Inoperable.Caused by Mechanical Failure. Adjusted 1-VS-AC-2 Backdraft Dampers Counterweight Arm for AHU 1-VS-AC-2

LER-1988-009-02, :on 880420,component Cooling Water HXs Declared Inoperable.Caused by Vacuum Priming Lines Up to Isolation Valves Not Being Seismically Supported.Engineering Work Request to Install Seismic Supports Made
type: Subject
label: 05000281/LER-1988-009-02, :on 880420,component Cooling Water HXs Declared Inoperable.Caused by Vacuum Priming Lines Up to Isolation Valves Not Being Seismically Supported.Engineering Work Request to Install Seismic Supports Made
page: https://kanterella.com/05000281/LER-2D1988-2D009-2D02-2C_-3Aon_880420-2Ccomponent_Cooling_Water_HXs_Declared_Inoperable.Caused_by_Vacuum_Priming_Lines_Up_to_Isolation_Valves_Not_Being_Seismically_Supp…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1988-009-02, :on 880420,component Cooling Water HXs Declared Inoperable.Caused by Vacuum Priming Lines Up to Isolation Valves Not Being Seismically Supported.Engineering Work Request to Install Seismic Supports Made

LER-1988-014-01, :on 870630,determined That Unique Scenario Could Exist Whereby Auxiliary Feedwater Could Be Lost to Operating Unit.Administrative Controls Established & Safety Analysis Reviewed for high-energy Line Break
type: Subject
label: 05000280/LER-1988-014-01, :on 870630,determined That Unique Scenario Could Exist Whereby Auxiliary Feedwater Could Be Lost to Operating Unit.Administrative Controls Established & Safety Analysis Reviewed for high-energy Line Break
page: https://kanterella.com/05000280/LER-2D1988-2D014-2D01-2C_-3Aon_870630-2Cdetermined_That_Unique_Scenario_Could_Exist_Whereby_Auxiliary_Feedwater_Could_Be_Lost_to_Operating_Unit.Administrative_Controls_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-014-01, :on 870630,determined That Unique Scenario Could Exist Whereby Auxiliary Feedwater Could Be Lost to Operating Unit.Administrative Controls Established & Safety Analysis Reviewed for high-energy Line Break

LER-1988-011-01, :on 880415,power-operated Relief Valves Failed to Manually Open When Selector Switches Placed in Open Position.Cause Under Investigation.Selector Switches,Air Supply & Valves Examined for Malfunctions
type: Subject
label: 05000280/LER-1988-011-01, :on 880415,power-operated Relief Valves Failed to Manually Open When Selector Switches Placed in Open Position.Cause Under Investigation.Selector Switches,Air Supply & Valves Examined for Malfunctions
page: https://kanterella.com/05000280/LER-2D1988-2D011-2D01-2C_-3Aon_880415-2Cpower-2Doperated_Relief_Valves_Failed_to_Manually_Open_When_Selector_Switches_Placed_in_Open_Position.Cause_Under_Investigation.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-011-01, :on 880415,power-operated Relief Valves Failed to Manually Open When Selector Switches Placed in Open Position.Cause Under Investigation.Selector Switches,Air Supply & Valves Examined for Malfunctions

LER-1988-029, :on 880815,reactor Trip & Safety Injection Occurred.Caused by Spurious Initiation of Train a High Consequence Limiting Safeguard.Relay Replaced & Limit Switch on Steam Dump Valve Adjusted
type: Subject
label: 05000280/LER-1988-029, :on 880815,reactor Trip & Safety Injection Occurred.Caused by Spurious Initiation of Train a High Consequence Limiting Safeguard.Relay Replaced & Limit Switch on Steam Dump Valve Adjusted
page: https://kanterella.com/05000280/LER-2D1988-2D029-2C_-3Aon_880815-2Creactor_Trip_-26_Safety_Injection_Occurred.Caused_by_Spurious_Initiation_of_Train_a_High_Consequence_Limiting_Safeguard.Relay_Replace…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-029, :on 880815,reactor Trip & Safety Injection Occurred.Caused by Spurious Initiation of Train a High Consequence Limiting Safeguard.Relay Replaced & Limit Switch on Steam Dump Valve Adjusted

Repaired Based Upon Failure Analysis Results
type: Subject
label: 05000281/LER-1988-002-02, :on 880202,containment Isolation Valves Declared Inoperable Due to Leakage in Excess of Spec Value. Cause Not Determined.Valves Will Be Replaced/Repaired Based Upon Failure Analysis Results
page: https://kanterella.com/05000281/LER-2D1988-2D002-2D02-2C_-3Aon_880202-2Ccontainment_Isolation_Valves_Declared_Inoperable_Due_to_Leakage_in_Excess_of_Spec_Value._Cause_Not_Determined.Valves_Will_Be_Rep…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1988-002-02, :on 880202,containment Isolation Valves Declared Inoperable Due to Leakage in Excess of Spec Value. Cause Not Determined.Valves Will Be Replaced/Repaired Based Upon Failure Analysis Results

LER-1988-024, :on 880711,16 Individual Rod Position Indicators for Eight Rods in Each Shutdown Bank a & B Differed from Group Demand Step Counter by Greater than 12 Steps.Caused by Drift in Subj Indicators
type: Subject
label: 05000280/LER-1988-024, :on 880711,16 Individual Rod Position Indicators for Eight Rods in Each Shutdown Bank a & B Differed from Group Demand Step Counter by Greater than 12 Steps.Caused by Drift in Subj Indicators
page: https://kanterella.com/05000280/LER-2D1988-2D024-2C_-3Aon_880711-2C16_Individual_Rod_Position_Indicators_for_Eight_Rods_in_Each_Shutdown_Bank_a_-26_B_Differed_from_Group_Demand_Step_Counter_by_Greater…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-024, :on 880711,16 Individual Rod Position Indicators for Eight Rods in Each Shutdown Bank a & B Differed from Group Demand Step Counter by Greater than 12 Steps.Caused by Drift in Subj Indicators

LER-1987-027, :on 871027,electrical Short in Train a Turbine Bldg Flood Control Panel Caused Spurious Completion of Flood Protection Circuit.Caused by Leak on Access Manway of Moisture Separator Reheater 1-MS-E-1B
type: Subject
label: 05000280/LER-1987-027, :on 871027,electrical Short in Train a Turbine Bldg Flood Control Panel Caused Spurious Completion of Flood Protection Circuit.Caused by Leak on Access Manway of Moisture Separator Reheater 1-MS-E-1B
page: https://kanterella.com/05000280/LER-2D1987-2D027-2C_-3Aon_871027-2Celectrical_Short_in_Train_a_Turbine_Bldg_Flood_Control_Panel_Caused_Spurious_Completion_of_Flood_Protection_Circuit.Caused_by_Leak_on…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1987-027, :on 871027,electrical Short in Train a Turbine Bldg Flood Control Panel Caused Spurious Completion of Flood Protection Circuit.Caused by Leak on Access Manway of Moisture Separator Reheater 1-MS-E-1B

LER-1988-017-01, :on 880606,discovered Debris in Temporary Discharge Cone Strainer & Recirculation Spray Sump Pumps. Caused by Inadequate Insp Program.Containment Sump & Pump Screen Surveillance Will Be Implemented
type: Subject
label: 05000280/LER-1988-017-01, :on 880606,discovered Debris in Temporary Discharge Cone Strainer & Recirculation Spray Sump Pumps. Caused by Inadequate Insp Program.Containment Sump & Pump Screen Surveillance Will Be Implemented
page: https://kanterella.com/05000280/LER-2D1988-2D017-2D01-2C_-3Aon_880606-2Cdiscovered_Debris_in_Temporary_Discharge_Cone_Strainer_-26_Recirculation_Spray_Sump_Pumps._Caused_by_Inadequate_Insp_Program.Con…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-017-01, :on 880606,discovered Debris in Temporary Discharge Cone Strainer & Recirculation Spray Sump Pumps. Caused by Inadequate Insp Program.Containment Sump & Pump Screen Surveillance Will Be Implemented

LER-1987-005-03, :on 871014 Electrician Inadvertently Completed Flood Protection Circuit Causing Two of Four Condenser Circulating Water Inlet Valves to Close.Caused by Personnel Error.Procedure Written for Maint Personnel
type: Subject
label: 05000281/LER-1987-005-03, :on 871014 Electrician Inadvertently Completed Flood Protection Circuit Causing Two of Four Condenser Circulating Water Inlet Valves to Close.Caused by Personnel Error.Procedure Written for Maint Personnel
page: https://kanterella.com/05000281/LER-2D1987-2D005-2D03-2C_-3Aon_871014_Electrician_Inadvertently_Completed_Flood_Protection_Circuit_Causing_Two_of_Four_Condenser_Circulating_Water_Inlet_Valves_to_Close…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1987-005-03, :on 871014 Electrician Inadvertently Completed Flood Protection Circuit Causing Two of Four Condenser Circulating Water Inlet Valves to Close.Caused by Personnel Error.Procedure Written for Maint Personnel

LER-1986-018, :on 861112,discovered Environ Qualified Components Not Installed Per Approved Raychem Guidelines. Caused by Inadequate Training of Personnel Installing Matl. Procedures Revised & Addl Training Conducted
type: Subject
label: 05000281/LER-1986-018, :on 861112,discovered Environ Qualified Components Not Installed Per Approved Raychem Guidelines. Caused by Inadequate Training of Personnel Installing Matl. Procedures Revised & Addl Training Conducted
page: https://kanterella.com/05000281/LER-2D1986-2D018-2C_-3Aon_861112-2Cdiscovered_Environ_Qualified_Components_Not_Installed_Per_Approved_Raychem_Guidelines._Caused_by_Inadequate_Training_of_Personnel_Ins…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000281/LER-1986-018, :on 861112,discovered Environ Qualified Components Not Installed Per Approved Raychem Guidelines. Caused by Inadequate Training of Personnel Installing Matl. Procedures Revised & Addl Training Conducted

LER-1987-022, :on 870830 & 0903,main Control Room Ventilation Isolation Occurred.Caused by High Voltage Output on Chlorine Gas Detector.Chemistry Dept Verified That No Chlorine in Main Control Room.Ventilation Sys Realigned
type: Subject
label: 05000280/LER-1987-022, :on 870830 & 0903,main Control Room Ventilation Isolation Occurred.Caused by High Voltage Output on Chlorine Gas Detector.Chemistry Dept Verified That No Chlorine in Main Control Room.Ventilation Sys Realigned
page: https://kanterella.com/05000280/LER-2D1987-2D022-2C_-3Aon_870830_-26_0903-2Cmain_Control_Room_Ventilation_Isolation_Occurred.Caused_by_High_Voltage_Output_on_Chlorine_Gas_Detector.Chemistry_Dept_Verif…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1987-022, :on 870830 & 0903,main Control Room Ventilation Isolation Occurred.Caused by High Voltage Output on Chlorine Gas Detector.Chemistry Dept Verified That No Chlorine in Main Control Room.Ventilation Sys Realigned

LER-1988-009-01, :on 880311,specific Activity Sample of Reactor Coolant Showed dose-equivalent I-131 Level of 1.5 Uci Which Exceed Tech Spec Limit.Caused by Fuel Element Defect in Reactor Core
type: Subject
label: 05000280/LER-1988-009-01, :on 880311,specific Activity Sample of Reactor Coolant Showed dose-equivalent I-131 Level of 1.5 Uci Which Exceed Tech Spec Limit.Caused by Fuel Element Defect in Reactor Core
page: https://kanterella.com/05000280/LER-2D1988-2D009-2D01-2C_-3Aon_880311-2Cspecific_Activity_Sample_of_Reactor_Coolant_Showed_dose-2Dequivalent_I-2D131_Level_of_1.5_Uci_Which_Exceed_Tech_Spec_Limit.Cause…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1988-009-01, :on 880311,specific Activity Sample of Reactor Coolant Showed dose-equivalent I-131 Level of 1.5 Uci Which Exceed Tech Spec Limit.Caused by Fuel Element Defect in Reactor Core

LER-1987-015-01, :on 870717,individual Rod Position Indicators for Shutdown Banks a & B & Control Banks A,B,C & D Declared Inoperable.Caused by Banks Indicating Below Demand Counter Position Due to Dirty Dc Power Contacts
type: Subject
label: 05000280/LER-1987-015-01, :on 870717,individual Rod Position Indicators for Shutdown Banks a & B & Control Banks A,B,C & D Declared Inoperable.Caused by Banks Indicating Below Demand Counter Position Due to Dirty Dc Power Contacts
page: https://kanterella.com/05000280/LER-2D1987-2D015-2D01-2C_-3Aon_870717-2Cindividual_Rod_Position_Indicators_for_Shutdown_Banks_a_-26_B_-26_Control_Banks_A-2CB-2CC_-26_D_Declared_Inoperable.Caused_by_Ba…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000280/LER-1987-015-01, :on 870717,individual Rod Position Indicators for Shutdown Banks a & B & Control Banks A,B,C & D Declared Inoperable.Caused by Banks Indicating Below Demand Counter Position Due to Dirty Dc Power Contacts

05000272/LER-1997-001-02, :on 970117,discovered Inadequate IST Surveillance of B Injection Inlet Valves.Caused by Inadequate Communication Between EOP & Ist.Reviewed Salem EOPs for Similar Problems
type: Subject
page: https://kanterella.com/05000272/LER-2D1997-2D001-2D02-2C_-3Aon_970117-2Cdiscovered_Inadequate_IST_Surveillance_of_B_Injection_Inlet_Valves.Caused_by_Inadequate_Communication_Between_EOP_-26_Ist.Review…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1997-001-02, :on 970117,discovered Inadequate IST Surveillance of B Injection Inlet Valves.Caused by Inadequate Communication Between EOP & Ist.Reviewed Salem EOPs for Similar Problems

LER-1996-015-02, :on 961219,breach of Containment Closure During Core Reload Occurred.Caused by Inadequate Inplementation of Outage Scheduling & Risk Management Requirements.Containment Closure Was Reestablished Using Alternate Isolation Poi
type: Subject
label: 05000311/LER-1996-015-02, :on 961219,breach of Containment Closure During Core Reload Occurred.Caused by Inadequate Inplementation of Outage Scheduling & Risk Management Requirements.Containment Closure Was Reestablished Using Alternate Isolation Poi
page: https://kanterella.com/05000311/LER-2D1996-2D015-2D02-2C_-3Aon_961219-2Cbreach_of_Containment_Closure_During_Core_Reload_Occurred.Caused_by_Inadequate_Inplementation_of_Outage_Scheduling_-26_Risk_Mana…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000311/LER-1996-015-02, :on 961219,breach of Containment Closure During Core Reload Occurred.Caused by Inadequate Inplementation of Outage Scheduling & Risk Management Requirements.Containment Closure Was Reestablished Using Alternate Isolation Poi

LER-1997-008, :on 970321,inadequate Surveillance Testing of PORV Accumulators & Check Valves Was Attributed to Lack of Adequate Controls for Development & Maintenance of TS Surveillance Procedures.New Procedure Made
type: Subject
label: 05000272/LER-1997-008, :on 970321,inadequate Surveillance Testing of PORV Accumulators & Check Valves Was Attributed to Lack of Adequate Controls for Development & Maintenance of TS Surveillance Procedures.New Procedure Made
page: https://kanterella.com/05000272/LER-2D1997-2D008-2C_-3Aon_970321-2Cinadequate_Surveillance_Testing_of_PORV_Accumulators_-26_Check_Valves_Was_Attributed_to_Lack_of_Adequate_Controls_for_Development_-26…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1997-008, :on 970321,inadequate Surveillance Testing of PORV Accumulators & Check Valves Was Attributed to Lack of Adequate Controls for Development & Maintenance of TS Surveillance Procedures.New Procedure Made

LER-1996-041, :on 961228,surveillance for Radiation Monitors Source Check Required by TS Was Missed.Caused by Lack of Attention to Detail.Reemphasized Mgt Expectations Concerning Surveillance Test Accountability
type: Subject
label: 05000272/LER-1996-041, :on 961228,surveillance for Radiation Monitors Source Check Required by TS Was Missed.Caused by Lack of Attention to Detail.Reemphasized Mgt Expectations Concerning Surveillance Test Accountability
page: https://kanterella.com/05000272/LER-2D1996-2D041-2C_-3Aon_961228-2Csurveillance_for_Radiation_Monitors_Source_Check_Required_by_TS_Was_Missed.Caused_by_Lack_of_Attention_to_Detail.Reemphasized_Mgt_Exp…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1996-041, :on 961228,surveillance for Radiation Monitors Source Check Required by TS Was Missed.Caused by Lack of Attention to Detail.Reemphasized Mgt Expectations Concerning Surveillance Test Accountability

05000272/LER-1994-015, :on 941018,determined That Refueling Water Storage Tank Volume Was Less than Required.Cause Not Determined.Properly Adjusted Transmitters & Returned RWST Level to Specification
type: Subject
page: https://kanterella.com/05000272/LER-2D1994-2D015-2C_-3Aon_941018-2Cdetermined_That_Refueling_Water_Storage_Tank_Volume_Was_Less_than_Required.Cause_Not_Determined.Properly_Adjusted_Transmitters_-26_Re…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1994-015, :on 941018,determined That Refueling Water Storage Tank Volume Was Less than Required.Cause Not Determined.Properly Adjusted Transmitters & Returned RWST Level to Specification

LER-1995-008-02, :on 951215,Tech Spec 4.9.9 Missed Isolation Testing Discovered.Caused by Lack of Adequate Controls to Ensure All Testing Requirements Addressed.Procedure S2.IC-FT.RM--0088(Q) Revised
type: Subject
label: 05000311/LER-1995-008-02, :on 951215,Tech Spec 4.9.9 Missed Isolation Testing Discovered.Caused by Lack of Adequate Controls to Ensure All Testing Requirements Addressed.Procedure S2.IC-FT.RM--0088(Q) Revised
page: https://kanterella.com/05000311/LER-2D1995-2D008-2D02-2C_-3Aon_951215-2CTech_Spec_4.9.9_Missed_Isolation_Testing_Discovered.Caused_by_Lack_of_Adequate_Controls_to_Ensure_All_Testing_Requirements_Addre…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000311/LER-1995-008-02, :on 951215,Tech Spec 4.9.9 Missed Isolation Testing Discovered.Caused by Lack of Adequate Controls to Ensure All Testing Requirements Addressed.Procedure S2.IC-FT.RM--0088(Q) Revised

LER-1996-002, :on 960110,evaluation Determined That Motor Operated Gate Valves Susceptible to Pressure Locking & Thermal Binding.Caused by Inability to Meet GL 95-07 Criteria.Test Procedure Changed
type: Subject
label: 05000272/LER-1996-002, :on 960110,evaluation Determined That Motor Operated Gate Valves Susceptible to Pressure Locking & Thermal Binding.Caused by Inability to Meet GL 95-07 Criteria.Test Procedure Changed
page: https://kanterella.com/05000272/LER-2D1996-2D002-2C_-3Aon_960110-2Cevaluation_Determined_That_Motor_Operated_Gate_Valves_Susceptible_to_Pressure_Locking_-26_Thermal_Binding.Caused_by_Inability_to_Meet…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000272/LER-1996-002, :on 960110,evaluation Determined That Motor Operated Gate Valves Susceptible to Pressure Locking & Thermal Binding.Caused by Inability to Meet GL 95-07 Criteria.Test Procedure Changed

Ts
type: Subject
label: 05000255/LER-1996-004, :on 960118,SIS Disabled W/Primary Coolant Sys Greater than 300 F.Caused by Personnel Error.Permanent Maint Procedure to Disable/Enable SIS Actuation on Low Pressurizer Pressure Will Be Revised to Align W/Ts
page: https://kanterella.com/05000255/LER-2D1996-2D004-2C_-3Aon_960118-2CSIS_Disabled_W/Primary_Coolant_Sys_Greater_than_300_F.Caused_by_Personnel_Error.Permanent_Maint_Procedure_to_Disable/Enable_SIS_Actua…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000255/LER-1996-004, :on 960118,SIS Disabled W/Primary Coolant Sys Greater than 300 F.Caused by Personnel Error.Permanent Maint Procedure to Disable/Enable SIS Actuation on Low Pressurizer Pressure Will Be Revised to Align W/Ts

LER-1995-001-01, :on 950302,left Channel DBA Sequencer Malfunctioned & Started Most of Left Channel Safeguards Equipment.Caused by Failure of DBA Sequencer micro-processor Module.Svc of Mfg of Sequencer Hardware Will Be Utilized
type: Subject
label: 05000255/LER-1995-001-01, :on 950302,left Channel DBA Sequencer Malfunctioned & Started Most of Left Channel Safeguards Equipment.Caused by Failure of DBA Sequencer micro-processor Module.Svc of Mfg of Sequencer Hardware Will Be Utilized
page: https://kanterella.com/05000255/LER-2D1995-2D001-2D01-2C_-3Aon_950302-2Cleft_Channel_DBA_Sequencer_Malfunctioned_-26_Started_Most_of_Left_Channel_Safeguards_Equipment.Caused_by_Failure_of_DBA_Sequence…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000255/LER-1995-001-01, :on 950302,left Channel DBA Sequencer Malfunctioned & Started Most of Left Channel Safeguards Equipment.Caused by Failure of DBA Sequencer micro-processor Module.Svc of Mfg of Sequencer Hardware Will Be Utilized

LER-1987-013, :on 870322,personnel Identified That Water Flow Switch Fire Detector WFS-262 (Kp;Fis) Inoperable.Caused by Failure to Perform 1 H Fire Watch.Quarterly Test Revised to Include Refs to Appropriate Tech Specs
type: Subject
label: 05000255/LER-1987-013, :on 870322,personnel Identified That Water Flow Switch Fire Detector WFS-262 (Kp;Fis) Inoperable.Caused by Failure to Perform 1 H Fire Watch.Quarterly Test Revised to Include Refs to Appropriate Tech Specs
page: https://kanterella.com/05000255/LER-2D1987-2D013-2C_-3Aon_870322-2Cpersonnel_Identified_That_Water_Flow_Switch_Fire_Detector_WFS-2D262_-28Kp-3BFis-29_Inoperable.Caused_by_Failure_to_Perform_1_H_Fire_W…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000255/LER-1987-013, :on 870322,personnel Identified That Water Flow Switch Fire Detector WFS-262 (Kp;Fis) Inoperable.Caused by Failure to Perform 1 H Fire Watch.Quarterly Test Revised to Include Refs to Appropriate Tech Specs

05000255/LER-1987-014, :on 870427,primary Data Logger Computer Memory Failed Causing in-core Alarm Sys to Be Inoperable.Caused by Operator Misinterpreting Tech Spec Action Statement.Tech Spec Revised
type: Subject
page: https://kanterella.com/05000255/LER-2D1987-2D014-2C_-3Aon_870427-2Cprimary_Data_Logger_Computer_Memory_Failed_Causing_in-2Dcore_Alarm_Sys_to_Be_Inoperable.Caused_by_Operator_Misinterpreting_Tech_Spec_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000255/LER-1987-014, :on 870427,primary Data Logger Computer Memory Failed Causing in-core Alarm Sys to Be Inoperable.Caused by Operator Misinterpreting Tech Spec Action Statement.Tech Spec Revised

LER-1996-004, :on 960717,loss of ECCS Division I & Division II Instrumentation Renders ECCS Equipment Inoperable.Caused by Loss of Inverter Output.Failed Components Replaced in Atu Inverter Circuitry & Instrumentation Logic Restored
type: Subject
label: 05000296/LER-1996-004, :on 960717,loss of ECCS Division I & Division II Instrumentation Renders ECCS Equipment Inoperable.Caused by Loss of Inverter Output.Failed Components Replaced in Atu Inverter Circuitry & Instrumentation Logic Restored
page: https://kanterella.com/05000296/LER-2D1996-2D004-2C_-3Aon_960717-2Closs_of_ECCS_Division_I_-26_Division_II_Instrumentation_Renders_ECCS_Equipment_Inoperable.Caused_by_Loss_of_Inverter_Output.Failed_Co…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000296/LER-1996-004, :on 960717,loss of ECCS Division I & Division II Instrumentation Renders ECCS Equipment Inoperable.Caused by Loss of Inverter Output.Failed Components Replaced in Atu Inverter Circuitry & Instrumentation Logic Restored

05000296/LER-1997-004-02, :on 970414,unplanned Manual Start of EDG During Scheduled Redundant Start Test Occurred.Caused by Personnel Error.Edg 3D Shutdown & Returned to pre-event Configuration
type: Subject
page: https://kanterella.com/05000296/LER-2D1997-2D004-2D02-2C_-3Aon_970414-2Cunplanned_Manual_Start_of_EDG_During_Scheduled_Redundant_Start_Test_Occurred.Caused_by_Personnel_Error.Edg_3D_Shutdown_-26_Retur…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000296/LER-1997-004-02, :on 970414,unplanned Manual Start of EDG During Scheduled Redundant Start Test Occurred.Caused by Personnel Error.Edg 3D Shutdown & Returned to pre-event Configuration

05000296/LER-1997-001-04, :on 970305,loss of Offsite Power on Unit 3 During Refueling Outage Resulted from Shorted Component. Replaced Relays Involved in Event W/Less Sensitive Relays
type: Subject
page: https://kanterella.com/05000296/LER-2D1997-2D001-2D04-2C_-3Aon_970305-2Closs_of_Offsite_Power_on_Unit_3_During_Refueling_Outage_Resulted_from_Shorted_Component._Replaced_Relays_Involved_in_Event_W/Les…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000296/LER-1997-001-04, :on 970305,loss of Offsite Power on Unit 3 During Refueling Outage Resulted from Shorted Component. Replaced Relays Involved in Event W/Less Sensitive Relays

Seat Bonding Resulting in SRV Setpoints Deviating.Valves Currently Being Retested & Recertified
type: Subject
label: 05000260/LER-1996-004-01, :on 960425,Unit 2 SRV Pilot Cartridges Failed Setpoint Acceptance Tests.Caused by SRV Pilot Disc/Seat Bonding Resulting in SRV Setpoints Deviating.Valves Currently Being Retested & Recertified
page: https://kanterella.com/05000260/LER-2D1996-2D004-2D01-2C_-3Aon_960425-2CUnit_2_SRV_Pilot_Cartridges_Failed_Setpoint_Acceptance_Tests.Caused_by_SRV_Pilot_Disc/Seat_Bonding_Resulting_in_SRV_Setpoints_De…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000260/LER-1996-004-01, :on 960425,Unit 2 SRV Pilot Cartridges Failed Setpoint Acceptance Tests.Caused by SRV Pilot Disc/Seat Bonding Resulting in SRV Setpoints Deviating.Valves Currently Being Retested & Recertified

05000296/LER-1997-002-03, :on 970410,HPCI Declared Inoperable.Caused by Personnel Error.Operations Personnel Stopped Instrument Mechanics Testing & Returned HPCI to Standby Readiness
type: Subject
page: https://kanterella.com/05000296/LER-2D1997-2D002-2D03-2C_-3Aon_970410-2CHPCI_Declared_Inoperable.Caused_by_Personnel_Error.Operations_Personnel_Stopped_Instrument_Mechanics_Testing_-26_Returned_HPCI_t…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000296/LER-1997-002-03, :on 970410,HPCI Declared Inoperable.Caused by Personnel Error.Operations Personnel Stopped Instrument Mechanics Testing & Returned HPCI to Standby Readiness

LER-1996-006-03, :on 961106,loss of ECCS Div 1 Instrumentation Rendered ECCS Equipment Inoperable.Caused by Cleared Fuse in ECCS Div.Fuse Replaced & Addl Testing to Challenge Replacement Fuse Performed
type: Subject
label: 05000296/LER-1996-006-03, :on 961106,loss of ECCS Div 1 Instrumentation Rendered ECCS Equipment Inoperable.Caused by Cleared Fuse in ECCS Div.Fuse Replaced & Addl Testing to Challenge Replacement Fuse Performed
page: https://kanterella.com/05000296/LER-2D1996-2D006-2D03-2C_-3Aon_961106-2Closs_of_ECCS_Div_1_Instrumentation_Rendered_ECCS_Equipment_Inoperable.Caused_by_Cleared_Fuse_in_ECCS_Div.Fuse_Replaced_-26_Addl_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000296/LER-1996-006-03, :on 961106,loss of ECCS Div 1 Instrumentation Rendered ECCS Equipment Inoperable.Caused by Cleared Fuse in ECCS Div.Fuse Replaced & Addl Testing to Challenge Replacement Fuse Performed

LER-1987-018, :on 870403,manual Reactor Trip Initiated Due to Loss of Both Main Feedwater Pumps.Caused by Inadvertent Short of Test Leads in Process Instrumentation Cabinet & Incorrect Setpoint.Undocumented Leads Removed
type: Subject
label: 05000400/LER-1987-018, :on 870403,manual Reactor Trip Initiated Due to Loss of Both Main Feedwater Pumps.Caused by Inadvertent Short of Test Leads in Process Instrumentation Cabinet & Incorrect Setpoint.Undocumented Leads Removed
page: https://kanterella.com/05000400/LER-2D1987-2D018-2C_-3Aon_870403-2Cmanual_Reactor_Trip_Initiated_Due_to_Loss_of_Both_Main_Feedwater_Pumps.Caused_by_Inadvertent_Short_of_Test_Leads_in_Process_Instrumen…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1987-018, :on 870403,manual Reactor Trip Initiated Due to Loss of Both Main Feedwater Pumps.Caused by Inadvertent Short of Test Leads in Process Instrumentation Cabinet & Incorrect Setpoint.Undocumented Leads Removed

LER-1987-020, :on 870413,reactor Trip Setpoints on All Three Overtemp Delta Temp (Odt) Bistables Incorrectly Set.Caused by Apparent Design Oversight in Odt Circuit Design & Vendor Testing Methodology.Test Procedures Revised
type: Subject
label: 05000400/LER-1987-020, :on 870413,reactor Trip Setpoints on All Three Overtemp Delta Temp (Odt) Bistables Incorrectly Set.Caused by Apparent Design Oversight in Odt Circuit Design & Vendor Testing Methodology.Test Procedures Revised
page: https://kanterella.com/05000400/LER-2D1987-2D020-2C_-3Aon_870413-2Creactor_Trip_Setpoints_on_All_Three_Overtemp_Delta_Temp_-28Odt-29_Bistables_Incorrectly_Set.Caused_by_Apparent_Design_Oversight_in_Od…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1987-020, :on 870413,reactor Trip Setpoints on All Three Overtemp Delta Temp (Odt) Bistables Incorrectly Set.Caused by Apparent Design Oversight in Odt Circuit Design & Vendor Testing Methodology.Test Procedures Revised

LER-1996-007, :on 960425,failed to Perform Tech Spec Surveillance Testing Per Specification 4.7.6.d.3.Caused by Inadequate Procedure Development.Satisfied Differential Pressure Testing Requirement
type: Subject
label: 05000400/LER-1996-007, :on 960425,failed to Perform Tech Spec Surveillance Testing Per Specification 4.7.6.d.3.Caused by Inadequate Procedure Development.Satisfied Differential Pressure Testing Requirement
page: https://kanterella.com/05000400/LER-2D1996-2D007-2C_-3Aon_960425-2Cfailed_to_Perform_Tech_Spec_Surveillance_Testing_Per_Specification_4.7.6.d.3.Caused_by_Inadequate_Procedure_Development.Satisfied_Dif…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1996-007, :on 960425,failed to Perform Tech Spec Surveillance Testing Per Specification 4.7.6.d.3.Caused by Inadequate Procedure Development.Satisfied Differential Pressure Testing Requirement

LER-1996-004, :on 960205,RWST Level Transmitters Failed & Violation of TS Action Statement Occurred.Caused by Freezing of Level Transmitter Sensing Lines.Frozen Lines Thawed & Missing Insulation Replaced
type: Subject
label: 05000400/LER-1996-004, :on 960205,RWST Level Transmitters Failed & Violation of TS Action Statement Occurred.Caused by Freezing of Level Transmitter Sensing Lines.Frozen Lines Thawed & Missing Insulation Replaced
page: https://kanterella.com/05000400/LER-2D1996-2D004-2C_-3Aon_960205-2CRWST_Level_Transmitters_Failed_-26_Violation_of_TS_Action_Statement_Occurred.Caused_by_Freezing_of_Level_Transmitter_Sensing_Lines.Fr…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1996-004, :on 960205,RWST Level Transmitters Failed & Violation of TS Action Statement Occurred.Caused by Freezing of Level Transmitter Sensing Lines.Frozen Lines Thawed & Missing Insulation Replaced

05000400/LER-1992-005-02, :on 920527,WRGM Declared Inoperable & Removed from Svc Due to Personnel Error.Additional Training Provided for Personnel Involved
type: Subject
page: https://kanterella.com/05000400/LER-2D1992-2D005-2D02-2C_-3Aon_920527-2CWRGM_Declared_Inoperable_-26_Removed_from_Svc_Due_to_Personnel_Error.Additional_Training_Provided_for_Personnel_Involved
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1992-005-02, :on 920527,WRGM Declared Inoperable & Removed from Svc Due to Personnel Error.Additional Training Provided for Personnel Involved

LER-1991-021-01, :on 911218,error Discovered in Program Utilized to Determine Containment Sump in-leakage Flow Rate.Caused by Personnel Error During Computer Design Development.Erroneous Error Corrected & Event Reviewed
type: Subject
label: 05000400/LER-1991-021-01, :on 911218,error Discovered in Program Utilized to Determine Containment Sump in-leakage Flow Rate.Caused by Personnel Error During Computer Design Development.Erroneous Error Corrected & Event Reviewed
page: https://kanterella.com/05000400/LER-2D1991-2D021-2D01-2C_-3Aon_911218-2Cerror_Discovered_in_Program_Utilized_to_Determine_Containment_Sump_in-2Dleakage_Flow_Rate.Caused_by_Personnel_Error_During_Compu…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1991-021-01, :on 911218,error Discovered in Program Utilized to Determine Containment Sump in-leakage Flow Rate.Caused by Personnel Error During Computer Design Development.Erroneous Error Corrected & Event Reviewed

LER-1990-024, :on 901121,64 Bussman Fnm Type Fuses in 125- Volt safety-related Applications Found Unacceptable.Caused by Recent Downgrade in Fuse Performance Specs Provided by Vendor.Fuses Replaced,Per Plant Mod PCR-5549
type: Subject
label: 05000400/LER-1990-024, :on 901121,64 Bussman Fnm Type Fuses in 125- Volt safety-related Applications Found Unacceptable.Caused by Recent Downgrade in Fuse Performance Specs Provided by Vendor.Fuses Replaced,Per Plant Mod PCR-5549
page: https://kanterella.com/05000400/LER-2D1990-2D024-2C_-3Aon_901121-2C64_Bussman_Fnm_Type_Fuses_in_125-2D_Volt_safety-2Drelated_Applications_Found_Unacceptable.Caused_by_Recent_Downgrade_in_Fuse_Performa…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1990-024, :on 901121,64 Bussman Fnm Type Fuses in 125- Volt safety-related Applications Found Unacceptable.Caused by Recent Downgrade in Fuse Performance Specs Provided by Vendor.Fuses Replaced,Per Plant Mod PCR-5549

LER-1989-017-01, On 891009,generator & Main Power Transformer Phase Differential Relay Tripped Lockout Relay.Caused by Multiple Ground Faults.Design Changes & Repairs Being Conducted While Plant Performs Refueling
type: Subject
label: 05000400/LER-1989-017-01, On 891009,generator & Main Power Transformer Phase Differential Relay Tripped Lockout Relay.Caused by Multiple Ground Faults.Design Changes & Repairs Being Conducted While Plant Performs Refueling
page: https://kanterella.com/05000400/LER-2D1989-2D017-2D01-2C_On_891009-2Cgenerator_-26_Main_Power_Transformer_Phase_Differential_Relay_Tripped_Lockout_Relay.Caused_by_Multiple_Ground_Faults.Design_Changes…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1989-017-01, On 891009,generator & Main Power Transformer Phase Differential Relay Tripped Lockout Relay.Caused by Multiple Ground Faults.Design Changes & Repairs Being Conducted While Plant Performs Refueling

LER-1990-010, :on 900405,control of Reactor Auxiliary Bldg Emergency Exhaust Pressure Boundary Not Implemented.Caused by Lack of Administrative Controls for Doors & Hatches. Administrative Controls Implemented
type: Subject
label: 05000400/LER-1990-010, :on 900405,control of Reactor Auxiliary Bldg Emergency Exhaust Pressure Boundary Not Implemented.Caused by Lack of Administrative Controls for Doors & Hatches. Administrative Controls Implemented
page: https://kanterella.com/05000400/LER-2D1990-2D010-2C_-3Aon_900405-2Ccontrol_of_Reactor_Auxiliary_Bldg_Emergency_Exhaust_Pressure_Boundary_Not_Implemented.Caused_by_Lack_of_Administrative_Controls_for_D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1990-010, :on 900405,control of Reactor Auxiliary Bldg Emergency Exhaust Pressure Boundary Not Implemented.Caused by Lack of Administrative Controls for Doors & Hatches. Administrative Controls Implemented

LER-1989-014-01, :on 890821,determined That Two Accessible Discharge Piping High Point Vents Not Verified Full of Water at Least Once Per 31 Days.Caused by Procedural Deficiency. Vents Verified Free of Air & Procedure Revised
type: Subject
label: 05000400/LER-1989-014-01, :on 890821,determined That Two Accessible Discharge Piping High Point Vents Not Verified Full of Water at Least Once Per 31 Days.Caused by Procedural Deficiency. Vents Verified Free of Air & Procedure Revised
page: https://kanterella.com/05000400/LER-2D1989-2D014-2D01-2C_-3Aon_890821-2Cdetermined_That_Two_Accessible_Discharge_Piping_High_Point_Vents_Not_Verified_Full_of_Water_at_Least_Once_Per_31_Days.Caused_by_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1989-014-01, :on 890821,determined That Two Accessible Discharge Piping High Point Vents Not Verified Full of Water at Least Once Per 31 Days.Caused by Procedural Deficiency. Vents Verified Free of Air & Procedure Revised

LER-1988-033, :on 881125 & 1202,declared Charging Safety Injection Pump (Csip) Inoperable.Caused by 1C Csip Scantily Covered in ESF Response Surveillance Test Procedures.Test to Verify 1C Csip Response Time Completed
type: Subject
label: 05000400/LER-1988-033, :on 881125 & 1202,declared Charging Safety Injection Pump (Csip) Inoperable.Caused by 1C Csip Scantily Covered in ESF Response Surveillance Test Procedures.Test to Verify 1C Csip Response Time Completed
page: https://kanterella.com/05000400/LER-2D1988-2D033-2C_-3Aon_881125_-26_1202-2Cdeclared_Charging_Safety_Injection_Pump_-28Csip-29_Inoperable.Caused_by_1C_Csip_Scantily_Covered_in_ESF_Response_Surveillanc…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1988-033, :on 881125 & 1202,declared Charging Safety Injection Pump (Csip) Inoperable.Caused by 1C Csip Scantily Covered in ESF Response Surveillance Test Procedures.Test to Verify 1C Csip Response Time Completed

LER-1987-034, :on 870611,air Leakage by Inner & Outer Doors of Personnel Air Lock Excessive.Caused by Flat Spots on O-ring Seal.Seals on Inner & Outer Doors Replaced & Procedure OMM-001 Revised
type: Subject
label: 05000400/LER-1987-034, :on 870611,air Leakage by Inner & Outer Doors of Personnel Air Lock Excessive.Caused by Flat Spots on O-ring Seal.Seals on Inner & Outer Doors Replaced & Procedure OMM-001 Revised
page: https://kanterella.com/05000400/LER-2D1987-2D034-2C_-3Aon_870611-2Cair_Leakage_by_Inner_-26_Outer_Doors_of_Personnel_Air_Lock_Excessive.Caused_by_Flat_Spots_on_O-2Dring_Seal.Seals_on_Inner_-26_Outer_D…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1987-034, :on 870611,air Leakage by Inner & Outer Doors of Personnel Air Lock Excessive.Caused by Flat Spots on O-ring Seal.Seals on Inner & Outer Doors Replaced & Procedure OMM-001 Revised

LER-1987-037, :on 870621,manual Reactor Trip Initiated from 30- Power After Operating Main Feedwater Train Tripped. Caused by Failed Open Feedwater Pump Recirculation Valve. Circuit Repaired & Plant Returned to Svc
type: Subject
label: 05000400/LER-1987-037, :on 870621,manual Reactor Trip Initiated from 30% Power After Operating Main Feedwater Train Tripped. Caused by Failed Open Feedwater Pump Recirculation Valve. Circuit Repaired & Plant Returned to Svc
page: https://kanterella.com/05000400/LER-2D1987-2D037-2C_-3Aon_870621-2Cmanual_Reactor_Trip_Initiated_from_30-_Power_After_Operating_Main_Feedwater_Train_Tripped._Caused_by_Failed_Open_Feedwater_Pump_Recir…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1987-037, :on 870621,manual Reactor Trip Initiated from 30% Power After Operating Main Feedwater Train Tripped. Caused by Failed Open Feedwater Pump Recirculation Valve. Circuit Repaired & Plant Returned to Svc

LER-1987-039, :on 870619,intermediate Range (IR) High Neutron Flux Trip Setpoint Found Out of Calibr.Caused by Previous Adjustment to IR Setpoints.New Scaling Currents for 25- Trip Incorporated Into Applicable Procedures
type: Subject
label: 05000400/LER-1987-039, :on 870619,intermediate Range (IR) High Neutron Flux Trip Setpoint Found Out of Calibr.Caused by Previous Adjustment to IR Setpoints.New Scaling Currents for 25% Trip Incorporated Into Applicable Procedures
page: https://kanterella.com/05000400/LER-2D1987-2D039-2C_-3Aon_870619-2Cintermediate_Range_-28IR-29_High_Neutron_Flux_Trip_Setpoint_Found_Out_of_Calibr.Caused_by_Previous_Adjustment_to_IR_Setpoints.New_Sca…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000400/LER-1987-039, :on 870619,intermediate Range (IR) High Neutron Flux Trip Setpoint Found Out of Calibr.Caused by Previous Adjustment to IR Setpoints.New Scaling Currents for 25% Trip Incorporated Into Applicable Procedures

Resin for Secondary Sys Startup.Caused by Failure of Differential Pressure Switch.Switch Replaced
type: Subject
label: 05000251/LER-1988-009, :on 880816,steam Generator Feedwater Pump Tripped During Coating of Condensate Polisher Vessel 4B W/ Resin for Secondary Sys Startup.Caused by Failure of Differential Pressure Switch.Switch Replaced
page: https://kanterella.com/05000251/LER-2D1988-2D009-2C_-3Aon_880816-2Csteam_Generator_Feedwater_Pump_Tripped_During_Coating_of_Condensate_Polisher_Vessel_4B_W/_Resin_for_Secondary_Sys_Startup.Caused_by_F…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000251/LER-1988-009, :on 880816,steam Generator Feedwater Pump Tripped During Coating of Condensate Polisher Vessel 4B W/ Resin for Secondary Sys Startup.Caused by Failure of Differential Pressure Switch.Switch Replaced

LER-1988-006-01, :on 880716,containment Ventilation & Control Room Ventilation Sys Isolation Occurred.Caused by Very Conservative Setpoint for R-11 Actuation.Unit Removed from Operation & Temporary Repair Effected
type: Subject
label: 05000251/LER-1988-006-01, :on 880716,containment Ventilation & Control Room Ventilation Sys Isolation Occurred.Caused by Very Conservative Setpoint for R-11 Actuation.Unit Removed from Operation & Temporary Repair Effected
page: https://kanterella.com/05000251/LER-2D1988-2D006-2D01-2C_-3Aon_880716-2Ccontainment_Ventilation_-26_Control_Room_Ventilation_Sys_Isolation_Occurred.Caused_by_Very_Conservative_Setpoint_for_R-2D11_Actu…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000251/LER-1988-006-01, :on 880716,containment Ventilation & Control Room Ventilation Sys Isolation Occurred.Caused by Very Conservative Setpoint for R-11 Actuation.Unit Removed from Operation & Temporary Repair Effected

LER-1988-007, :on 880427,3A Intake Cooling Water (Icw) Pump out-of-svc Due to Discharge Pressure Gauge Piping Failure. Caused by Corrosion of Coupling Attaching Pressure Gauge Piping to Icw Discharge Pipe.Piping Repaired
type: Subject
label: 05000250/LER-1988-007, :on 880427,3A Intake Cooling Water (Icw) Pump out-of-svc Due to Discharge Pressure Gauge Piping Failure. Caused by Corrosion of Coupling Attaching Pressure Gauge Piping to Icw Discharge Pipe.Piping Repaired
page: https://kanterella.com/05000250/LER-2D1988-2D007-2C_-3Aon_880427-2C3A_Intake_Cooling_Water_-28Icw-29_Pump_out-2Dof-2Dsvc_Due_to_Discharge_Pressure_Gauge_Piping_Failure._Caused_by_Corrosion_of_Coupling…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000250/LER-1988-007, :on 880427,3A Intake Cooling Water (Icw) Pump out-of-svc Due to Discharge Pressure Gauge Piping Failure. Caused by Corrosion of Coupling Attaching Pressure Gauge Piping to Icw Discharge Pipe.Piping Repaired

LER-1987-008-01, :on 870722,ESF Actuation Occurred Due to Extreme High Level in Steam Generator 24.Caused by Erratic Response of Main Feedwater Pump Delta P Controller. Plant Procedures Implemented
type: Subject
label: 05000316/LER-1987-008-01, :on 870722,ESF Actuation Occurred Due to Extreme High Level in Steam Generator 24.Caused by Erratic Response of Main Feedwater Pump Delta P Controller. Plant Procedures Implemented
page: https://kanterella.com/05000316/LER-2D1987-2D008-2D01-2C_-3Aon_870722-2CESF_Actuation_Occurred_Due_to_Extreme_High_Level_in_Steam_Generator_24.Caused_by_Erratic_Response_of_Main_Feedwater_Pump_Delta_P…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1987-008-01, :on 870722,ESF Actuation Occurred Due to Extreme High Level in Steam Generator 24.Caused by Erratic Response of Main Feedwater Pump Delta P Controller. Plant Procedures Implemented

05000315/LER-1995-010, :on 951020,inadequate Communication Resulted in Unexpected ESF Actuation.Completed Repairs to 1NRI-36 & Declared Detector Operable
type: Subject
page: https://kanterella.com/05000315/LER-2D1995-2D010-2C_-3Aon_951020-2Cinadequate_Communication_Resulted_in_Unexpected_ESF_Actuation.Completed_Repairs_to_1NRI-2D36_-26_Declared_Detector_Operable
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1995-010, :on 951020,inadequate Communication Resulted in Unexpected ESF Actuation.Completed Repairs to 1NRI-36 & Declared Detector Operable

LER-1993-004, :on 930408,rod Position Indication for Rods H-12 & M-8 Found Indicating Greater than 12 Steps from Demand Position Indication.Caused by Transformer Sensitivity to Temp Changes.Position Verified
type: Subject
label: 05000316/LER-1993-004, :on 930408,rod Position Indication for Rods H-12 & M-8 Found Indicating Greater than 12 Steps from Demand Position Indication.Caused by Transformer Sensitivity to Temp Changes.Position Verified
page: https://kanterella.com/05000316/LER-2D1993-2D004-2C_-3Aon_930408-2Crod_Position_Indication_for_Rods_H-2D12_-26_M-2D8_Found_Indicating_Greater_than_12_Steps_from_Demand_Position_Indication.Caused_by_Tr…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1993-004, :on 930408,rod Position Indication for Rods H-12 & M-8 Found Indicating Greater than 12 Steps from Demand Position Indication.Caused by Transformer Sensitivity to Temp Changes.Position Verified

LER-1992-006-02, :on 920618 & 19,10 of 20 Main Steam Safety Valve Lift Settings Found Outside of TS Tolerances.Caused by Setpoint Drift.Valves Reset to Acceptable Values & Retested Satisfactorily
type: Subject
label: 05000315/LER-1992-006-02, :on 920618 & 19,10 of 20 Main Steam Safety Valve Lift Settings Found Outside of TS Tolerances.Caused by Setpoint Drift.Valves Reset to Acceptable Values & Retested Satisfactorily
page: https://kanterella.com/05000315/LER-2D1992-2D006-2D02-2C_-3Aon_920618_-26_19-2C10_of_20_Main_Steam_Safety_Valve_Lift_Settings_Found_Outside_of_TS_Tolerances.Caused_by_Setpoint_Drift.Valves_Reset_to_Ac…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1992-006-02, :on 920618 & 19,10 of 20 Main Steam Safety Valve Lift Settings Found Outside of TS Tolerances.Caused by Setpoint Drift.Valves Reset to Acceptable Values & Retested Satisfactorily

LER-1992-003, :on 920219,20 & 21,7 of 20 Main Steam Safety Valve Lift Setting Found Outside of TS Established Limits. Caused by Setpoint Drift.Setpoint Ranges Reset & Maint Procedure for Valve Repair Revised
type: Subject
label: 05000316/LER-1992-003, :on 920219,20 & 21,7 of 20 Main Steam Safety Valve Lift Setting Found Outside of TS Established Limits. Caused by Setpoint Drift.Setpoint Ranges Reset & Maint Procedure for Valve Repair Revised
page: https://kanterella.com/05000316/LER-2D1992-2D003-2C_-3Aon_920219-2C20_-26_21-2C7_of_20_Main_Steam_Safety_Valve_Lift_Setting_Found_Outside_of_TS_Established_Limits._Caused_by_Setpoint_Drift.Setpoint_Ra…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1992-003, :on 920219,20 & 21,7 of 20 Main Steam Safety Valve Lift Setting Found Outside of TS Established Limits. Caused by Setpoint Drift.Setpoint Ranges Reset & Maint Procedure for Valve Repair Revised

LER-1992-002, :on 920210,AB EDG Tripped on Overspeed While Starting for Routine Operability Test.Caused by Sluggish Governor Operation.Design Change Has Been Initiated to Modify Ventiliation Supply Damper Linkage
type: Subject
label: 05000315/LER-1992-002, :on 920210,AB EDG Tripped on Overspeed While Starting for Routine Operability Test.Caused by Sluggish Governor Operation.Design Change Has Been Initiated to Modify Ventiliation Supply Damper Linkage
page: https://kanterella.com/05000315/LER-2D1992-2D002-2C_-3Aon_920210-2CAB_EDG_Tripped_on_Overspeed_While_Starting_for_Routine_Operability_Test.Caused_by_Sluggish_Governor_Operation.Design_Change_Has_Been_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1992-002, :on 920210,AB EDG Tripped on Overspeed While Starting for Routine Operability Test.Caused by Sluggish Governor Operation.Design Change Has Been Initiated to Modify Ventiliation Supply Damper Linkage

LER-1991-004-01, :on 910512,while Performing Main Generator Max Reactive Capability Test,Rps (Reactor Trip Sequence) Occurred.Caused by Undervoltage Condition Sensed on RCP Busses.Defective Component Replaced
type: Subject
label: 05000315/LER-1991-004-01, :on 910512,while Performing Main Generator Max Reactive Capability Test,Rps (Reactor Trip Sequence) Occurred.Caused by Undervoltage Condition Sensed on RCP Busses.Defective Component Replaced
page: https://kanterella.com/05000315/LER-2D1991-2D004-2D01-2C_-3Aon_910512-2Cwhile_Performing_Main_Generator_Max_Reactive_Capability_Test-2CRps_-28Reactor_Trip_Sequence-29_Occurred.Caused_by_Undervoltage_C…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1991-004-01, :on 910512,while Performing Main Generator Max Reactive Capability Test,Rps (Reactor Trip Sequence) Occurred.Caused by Undervoltage Condition Sensed on RCP Busses.Defective Component Replaced

Operators
type: Subject
label: 05000315/LER-1991-002, :on 910128,emergency Diesel Generator Removed from Svc & Declared Inoperable W/O Meeting TS Surveillance Requirements within 1 H.Caused by Personnel Error.Lessons Learned Re Event Reviewed W/Operators
page: https://kanterella.com/05000315/LER-2D1991-2D002-2C_-3Aon_910128-2Cemergency_Diesel_Generator_Removed_from_Svc_-26_Declared_Inoperable_W/O_Meeting_TS_Surveillance_Requirements_within_1_H.Caused_by_Per…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1991-002, :on 910128,emergency Diesel Generator Removed from Svc & Declared Inoperable W/O Meeting TS Surveillance Requirements within 1 H.Caused by Personnel Error.Lessons Learned Re Event Reviewed W/Operators

LER-1990-001, :on 900112,unplanned ESF Actuation Occurred During Calibr of Time Delay Relays for Degraded Voltage. Caused by Lack of Insulation on Wiring.Personnel Instructed to Disable Circuit by Method of Knife Switch
type: Subject
label: 05000316/LER-1990-001, :on 900112,unplanned ESF Actuation Occurred During Calibr of Time Delay Relays for Degraded Voltage. Caused by Lack of Insulation on Wiring.Personnel Instructed to Disable Circuit by Method of Knife Switch
page: https://kanterella.com/05000316/LER-2D1990-2D001-2C_-3Aon_900112-2Cunplanned_ESF_Actuation_Occurred_During_Calibr_of_Time_Delay_Relays_for_Degraded_Voltage._Caused_by_Lack_of_Insulation_on_Wiring.Pers…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1990-001, :on 900112,unplanned ESF Actuation Occurred During Calibr of Time Delay Relays for Degraded Voltage. Caused by Lack of Insulation on Wiring.Personnel Instructed to Disable Circuit by Method of Knife Switch

LER-1989-002, :on 890116,seismic Restraint,Located on 24-inch ECCS Suction Line,Noted to Have Significant Deformation. Probably Caused by Removal & Reinstallation of Piping During Startup.Mod Initiated to Repair Restraint
type: Subject
label: 05000316/LER-1989-002, :on 890116,seismic Restraint,Located on 24-inch ECCS Suction Line,Noted to Have Significant Deformation. Probably Caused by Removal & Reinstallation of Piping During Startup.Mod Initiated to Repair Restraint
page: https://kanterella.com/05000316/LER-2D1989-2D002-2C_-3Aon_890116-2Cseismic_Restraint-2CLocated_on_24-2Dinch_ECCS_Suction_Line-2CNoted_to_Have_Significant_Deformation._Probably_Caused_by_Removal_-26_Re…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1989-002, :on 890116,seismic Restraint,Located on 24-inch ECCS Suction Line,Noted to Have Significant Deformation. Probably Caused by Removal & Reinstallation of Piping During Startup.Mod Initiated to Repair Restraint

LER-1988-007-01, :on 880908,flow Passage Insp of Ice Condenser Revealed Frost & Ice Buildup.Caused by Sublimation of Ice or High Humidity in Containment Air.Flow Passages Manually Cleaned to Remove Accessible Frost
type: Subject
label: 05000315/LER-1988-007-01, :on 880908,flow Passage Insp of Ice Condenser Revealed Frost & Ice Buildup.Caused by Sublimation of Ice or High Humidity in Containment Air.Flow Passages Manually Cleaned to Remove Accessible Frost
page: https://kanterella.com/05000315/LER-2D1988-2D007-2D01-2C_-3Aon_880908-2Cflow_Passage_Insp_of_Ice_Condenser_Revealed_Frost_-26_Ice_Buildup.Caused_by_Sublimation_of_Ice_or_High_Humidity_in_Containment_A…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1988-007-01, :on 880908,flow Passage Insp of Ice Condenser Revealed Frost & Ice Buildup.Caused by Sublimation of Ice or High Humidity in Containment Air.Flow Passages Manually Cleaned to Remove Accessible Frost

Tech Specs.Caused by Personnel Error.Procedures Updated to List Required Sampling Frequencies & Analysis for Sys
type: Subject
label: 05000315/LER-1988-012, :on 881111,turbine Room Sump Not Sampled & Analyzed in Accordance W/Tech Specs.Caused by Personnel Error.Procedures Updated to List Required Sampling Frequencies & Analysis for Sys
page: https://kanterella.com/05000315/LER-2D1988-2D012-2C_-3Aon_881111-2Cturbine_Room_Sump_Not_Sampled_-26_Analyzed_in_Accordance_W/Tech_Specs.Caused_by_Personnel_Error.Procedures_Updated_to_List_Required_S…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1988-012, :on 881111,turbine Room Sump Not Sampled & Analyzed in Accordance W/Tech Specs.Caused by Personnel Error.Procedures Updated to List Required Sampling Frequencies & Analysis for Sys

LER-1987-022, :on 871007,as Found Data of Two Pressurizer Level Channels Exceeded Tech Spec Limiting Condition for Operation.Caused by Transmitter Calibr Shift.Calibr Checks for New Transmitter Installations Planned
type: Subject
label: 05000315/LER-1987-022, :on 871007,as Found Data of Two Pressurizer Level Channels Exceeded Tech Spec Limiting Condition for Operation.Caused by Transmitter Calibr Shift.Calibr Checks for New Transmitter Installations Planned
page: https://kanterella.com/05000315/LER-2D1987-2D022-2C_-3Aon_871007-2Cas_Found_Data_of_Two_Pressurizer_Level_Channels_Exceeded_Tech_Spec_Limiting_Condition_for_Operation.Caused_by_Transmitter_Calibr_Shif…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1987-022, :on 871007,as Found Data of Two Pressurizer Level Channels Exceeded Tech Spec Limiting Condition for Operation.Caused by Transmitter Calibr Shift.Calibr Checks for New Transmitter Installations Planned

LER-1988-010-01, :on 881004,unit Electrical Cables of Reactor Head Vent Valves & Pressurizer Steam Space Vent Valves Determined Not Physically Configured Per Design Drawings. Configuration Discrepancies Corrected
type: Subject
label: 05000315/LER-1988-010-01, :on 881004,unit Electrical Cables of Reactor Head Vent Valves & Pressurizer Steam Space Vent Valves Determined Not Physically Configured Per Design Drawings. Configuration Discrepancies Corrected
page: https://kanterella.com/05000315/LER-2D1988-2D010-2D01-2C_-3Aon_881004-2Cunit_Electrical_Cables_of_Reactor_Head_Vent_Valves_-26_Pressurizer_Steam_Space_Vent_Valves_Determined_Not_Physically_Configured_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1988-010-01, :on 881004,unit Electrical Cables of Reactor Head Vent Valves & Pressurizer Steam Space Vent Valves Determined Not Physically Configured Per Design Drawings. Configuration Discrepancies Corrected

LER-1988-004, :on 880420,discovered Six of Twenty Main Steam Safety Valves Lift Setpoints Out of Spec During Surveillance Testing.Caused by Testing Method & Setpoint Drift.Safety Valves Setpoints Reset
type: Subject
label: 05000316/LER-1988-004, :on 880420,discovered Six of Twenty Main Steam Safety Valves Lift Setpoints Out of Spec During Surveillance Testing.Caused by Testing Method & Setpoint Drift.Safety Valves Setpoints Reset
page: https://kanterella.com/05000316/LER-2D1988-2D004-2C_-3Aon_880420-2Cdiscovered_Six_of_Twenty_Main_Steam_Safety_Valves_Lift_Setpoints_Out_of_Spec_During_Surveillance_Testing.Caused_by_Testing_Method_-26…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1988-004, :on 880420,discovered Six of Twenty Main Steam Safety Valves Lift Setpoints Out of Spec During Surveillance Testing.Caused by Testing Method & Setpoint Drift.Safety Valves Setpoints Reset

Low Level on Steam Generator 11.Caused by Failure of East Main Feedwater Pump Shaft Driven Oil Pump.Bearings Replaced
type: Subject
label: 05000315/LER-1987-021, :on 871013,ESF Actuation Occurred Due to Feedwater Flow/Steam Mismatch Coincident W/Low Level on Steam Generator 11.Caused by Failure of East Main Feedwater Pump Shaft Driven Oil Pump.Bearings Replaced
page: https://kanterella.com/05000315/LER-2D1987-2D021-2C_-3Aon_871013-2CESF_Actuation_Occurred_Due_to_Feedwater_Flow/Steam_Mismatch_Coincident_W/Low_Level_on_Steam_Generator_11.Caused_by_Failure_of_East_Ma…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1987-021, :on 871013,ESF Actuation Occurred Due to Feedwater Flow/Steam Mismatch Coincident W/Low Level on Steam Generator 11.Caused by Failure of East Main Feedwater Pump Shaft Driven Oil Pump.Bearings Replaced

Measurement Error.Flow Reconciled
type: Subject
label: 05000315/LER-1987-016, :on 870815,discovered That Boron Injection Sys Distribution Flow Not in Compliance W/Tech Spec Requirements.Caused by Normal Sys Fluctuations Combined W/ Instrument/Measurement Error.Flow Reconciled
page: https://kanterella.com/05000315/LER-2D1987-2D016-2C_-3Aon_870815-2Cdiscovered_That_Boron_Injection_Sys_Distribution_Flow_Not_in_Compliance_W/Tech_Spec_Requirements.Caused_by_Normal_Sys_Fluctuations_Co…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1987-016, :on 870815,discovered That Boron Injection Sys Distribution Flow Not in Compliance W/Tech Spec Requirements.Caused by Normal Sys Fluctuations Combined W/ Instrument/Measurement Error.Flow Reconciled

LER-1987-006-01, :on 870615,containment Spray Pumps Declared Inoperable Due to Improperly Performed Tech Spec Surveillances Testing.Caused by Improper Labeling of Flow Instrumentation Being Maintained.Pumps Tested
type: Subject
label: 05000316/LER-1987-006-01, :on 870615,containment Spray Pumps Declared Inoperable Due to Improperly Performed Tech Spec Surveillances Testing.Caused by Improper Labeling of Flow Instrumentation Being Maintained.Pumps Tested
page: https://kanterella.com/05000316/LER-2D1987-2D006-2D01-2C_-3Aon_870615-2Ccontainment_Spray_Pumps_Declared_Inoperable_Due_to_Improperly_Performed_Tech_Spec_Surveillances_Testing.Caused_by_Improper_Label…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000316/LER-1987-006-01, :on 870615,containment Spray Pumps Declared Inoperable Due to Improperly Performed Tech Spec Surveillances Testing.Caused by Improper Labeling of Flow Instrumentation Being Maintained.Pumps Tested

Utils That Have Same Unit
type: Subject
label: 05000315/LER-1987-013, :on 870701 & 02,ice Buildup Discovered in Ice Condenser Flow Passages.Caused Possibly by Sublimation of Ice or High Humidity in Containment Air.Condenser Defrosted & Matter Discussed W/Utils That Have Same Unit
page: https://kanterella.com/05000315/LER-2D1987-2D013-2C_-3Aon_870701_-26_02-2Cice_Buildup_Discovered_in_Ice_Condenser_Flow_Passages.Caused_Possibly_by_Sublimation_of_Ice_or_High_Humidity_in_Containment_Ai…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000315/LER-1987-013, :on 870701 & 02,ice Buildup Discovered in Ice Condenser Flow Passages.Caused Possibly by Sublimation of Ice or High Humidity in Containment Air.Condenser Defrosted & Matter Discussed W/Utils That Have Same Unit

Proper Set Point
type: Subject
label: 05000335/LER-1997-011, :on 971102,non-conservative RAS Set Point Resulted in Operation Prohibited by Ts.Caused by Inadequate Set Point & Instrument Loop Scaling Process.Revised ESFAS Functional Tp W/Proper Set Point
page: https://kanterella.com/05000335/LER-2D1997-2D011-2C_-3Aon_971102-2Cnon-2Dconservative_RAS_Set_Point_Resulted_in_Operation_Prohibited_by_Ts.Caused_by_Inadequate_Set_Point_-26_Instrument_Loop_Scaling_Pr…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1997-011, :on 971102,non-conservative RAS Set Point Resulted in Operation Prohibited by Ts.Caused by Inadequate Set Point & Instrument Loop Scaling Process.Revised ESFAS Functional Tp W/Proper Set Point

LER-1990-006-02, :on 900814,reactor Trip Occurred Following Manual Turbine Trip & Phase B of Main Transformer Loosing Forced Cooling.Caused by Failure of Control Power Transformer.Transformer Replaced
type: Subject
label: 05000528/LER-1990-006-02, :on 900814,reactor Trip Occurred Following Manual Turbine Trip & Phase B of Main Transformer Loosing Forced Cooling.Caused by Failure of Control Power Transformer.Transformer Replaced
page: https://kanterella.com/05000528/LER-2D1990-2D006-2D02-2C_-3Aon_900814-2Creactor_Trip_Occurred_Following_Manual_Turbine_Trip_-26_Phase_B_of_Main_Transformer_Loosing_Forced_Cooling.Caused_by_Failure_of_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000528/LER-1990-006-02, :on 900814,reactor Trip Occurred Following Manual Turbine Trip & Phase B of Main Transformer Loosing Forced Cooling.Caused by Failure of Control Power Transformer.Transformer Replaced

LER-1989-001, :on 890303,electrical Grid Disturbance Resulted in Main Generator Output Breakers Opening,Resulting in Reactor Power Cutback & Steam Bypass Control Sys Actuation. Caused by Malfunction in Subj Control Sys
type: Subject
label: 05000530/LER-1989-001, :on 890303,electrical Grid Disturbance Resulted in Main Generator Output Breakers Opening,Resulting in Reactor Power Cutback & Steam Bypass Control Sys Actuation. Caused by Malfunction in Subj Control Sys
page: https://kanterella.com/05000530/LER-2D1989-2D001-2C_-3Aon_890303-2Celectrical_Grid_Disturbance_Resulted_in_Main_Generator_Output_Breakers_Opening-2CResulting_in_Reactor_Power_Cutback_-26_Steam_Bypass_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000530/LER-1989-001, :on 890303,electrical Grid Disturbance Resulted in Main Generator Output Breakers Opening,Resulting in Reactor Power Cutback & Steam Bypass Control Sys Actuation. Caused by Malfunction in Subj Control Sys

LER-1989-019, :on 890929,Train B of Fuel Bldg Essential Ventilation Actuation Sys Spuriously Actuated.Caused by Loose Connection Between Radiation Monitor Remote Indication & Control Unit Instrument Drawer & Cabinet
type: Subject
label: 05000528/LER-1989-019, :on 890929,Train B of Fuel Bldg Essential Ventilation Actuation Sys Spuriously Actuated.Caused by Loose Connection Between Radiation Monitor Remote Indication & Control Unit Instrument Drawer & Cabinet
page: https://kanterella.com/05000528/LER-2D1989-2D019-2C_-3Aon_890929-2CTrain_B_of_Fuel_Bldg_Essential_Ventilation_Actuation_Sys_Spuriously_Actuated.Caused_by_Loose_Connection_Between_Radiation_Monitor_Rem…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000528/LER-1989-019, :on 890929,Train B of Fuel Bldg Essential Ventilation Actuation Sys Spuriously Actuated.Caused by Loose Connection Between Radiation Monitor Remote Indication & Control Unit Instrument Drawer & Cabinet

LER-1989-013-01, :on 890926,control Room Operator Inadvertently Turned Wrong Handswitch During post-maint Testing Which Resulted in ESFAS Actuation.Caused by Personnel Error. Disciplinary Measures Taken
type: Subject
label: 05000530/LER-1989-013-01, :on 890926,control Room Operator Inadvertently Turned Wrong Handswitch During post-maint Testing Which Resulted in ESFAS Actuation.Caused by Personnel Error. Disciplinary Measures Taken
page: https://kanterella.com/05000530/LER-2D1989-2D013-2D01-2C_-3Aon_890926-2Ccontrol_Room_Operator_Inadvertently_Turned_Wrong_Handswitch_During_post-2Dmaint_Testing_Which_Resulted_in_ESFAS_Actuation.Caused…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000530/LER-1989-013-01, :on 890926,control Room Operator Inadvertently Turned Wrong Handswitch During post-maint Testing Which Resulted in ESFAS Actuation.Caused by Personnel Error. Disciplinary Measures Taken

LER-1989-006-01, :on 890731,containment Purge Isolation Actuation Signal Initiated Due to Loss of Power to Panel 1E-PNB-D26.Cause Not Identified.Power Restored & Radiation Monitor RU-38 Placed Back on Line
type: Subject
label: 05000528/LER-1989-006-01, :on 890731,containment Purge Isolation Actuation Signal Initiated Due to Loss of Power to Panel 1E-PNB-D26.Cause Not Identified.Power Restored & Radiation Monitor RU-38 Placed Back on Line
page: https://kanterella.com/05000528/LER-2D1989-2D006-2D01-2C_-3Aon_890731-2Ccontainment_Purge_Isolation_Actuation_Signal_Initiated_Due_to_Loss_of_Power_to_Panel_1E-2DPNB-2DD26.Cause_Not_Identified.Power_R…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000528/LER-1989-006-01, :on 890731,containment Purge Isolation Actuation Signal Initiated Due to Loss of Power to Panel 1E-PNB-D26.Cause Not Identified.Power Restored & Radiation Monitor RU-38 Placed Back on Line

LER-1988-006, :on 880321,determined That Allowable Surveillance Test Interval Had Been Exceeded for Incore Detector Sys.Caused by Personnel Error & Inadequate Programmatic Controls.Personnel Counseled
type: Subject
label: 05000528/LER-1988-006, :on 880321,determined That Allowable Surveillance Test Interval Had Been Exceeded for Incore Detector Sys.Caused by Personnel Error & Inadequate Programmatic Controls.Personnel Counseled
page: https://kanterella.com/05000528/LER-2D1988-2D006-2C_-3Aon_880321-2Cdetermined_That_Allowable_Surveillance_Test_Interval_Had_Been_Exceeded_for_Incore_Detector_Sys.Caused_by_Personnel_Error_-26_Inadequa…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000528/LER-1988-006, :on 880321,determined That Allowable Surveillance Test Interval Had Been Exceeded for Incore Detector Sys.Caused by Personnel Error & Inadequate Programmatic Controls.Personnel Counseled

LER-1991-001, :on 910110.determined That Postulated Break in Reactor Coolant Pump High Pressure Seal Cooler Could Result in RCS Leak Outside Containment.Caused by Tube Rupture in Seal Cooler.Rcs Activity Monitored
type: Subject
label: 05000528/LER-1991-001, :on 910110.determined That Postulated Break in Reactor Coolant Pump High Pressure Seal Cooler Could Result in RCS Leak Outside Containment.Caused by Tube Rupture in Seal Cooler.Rcs Activity Monitored
page: https://kanterella.com/05000528/LER-2D1991-2D001-2C_-3Aon_910110.determined_That_Postulated_Break_in_Reactor_Coolant_Pump_High_Pressure_Seal_Cooler_Could_Result_in_RCS_Leak_Outside_Containment.Caused_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000528/LER-1991-001, :on 910110.determined That Postulated Break in Reactor Coolant Pump High Pressure Seal Cooler Could Result in RCS Leak Outside Containment.Caused by Tube Rupture in Seal Cooler.Rcs Activity Monitored

LER-1990-004, :on 900504,discovered That Pressurizer Code Safety Valves as-found Setpoints Out of Tolerance.Caused by Performance Limitation of Pressurizer Safety Valves.Valves Adjusted & Retested Satisfactorily
type: Subject
label: 05000529/LER-1990-004, :on 900504,discovered That Pressurizer Code Safety Valves as-found Setpoints Out of Tolerance.Caused by Performance Limitation of Pressurizer Safety Valves.Valves Adjusted & Retested Satisfactorily
page: https://kanterella.com/05000529/LER-2D1990-2D004-2C_-3Aon_900504-2Cdiscovered_That_Pressurizer_Code_Safety_Valves_as-2Dfound_Setpoints_Out_of_Tolerance.Caused_by_Performance_Limitation_of_Pressurizer_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000529/LER-1990-004, :on 900504,discovered That Pressurizer Code Safety Valves as-found Setpoints Out of Tolerance.Caused by Performance Limitation of Pressurizer Safety Valves.Valves Adjusted & Retested Satisfactorily

LER-1989-017, :on 891023,four Unsealed Penetrations in Unit 3 Seismic Gap Area Discovered During Visual Insp of 94 Ft Elevation Diesel Bldg Pipe Trenches.Fire Watches Established in All Units.Sealing of Penetrations Underway
type: Subject
label: 05000528/LER-1989-017, :on 891023,four Unsealed Penetrations in Unit 3 Seismic Gap Area Discovered During Visual Insp of 94 Ft Elevation Diesel Bldg Pipe Trenches.Fire Watches Established in All Units.Sealing of Penetrations Underway
page: https://kanterella.com/05000528/LER-2D1989-2D017-2C_-3Aon_891023-2Cfour_Unsealed_Penetrations_in_Unit_3_Seismic_Gap_Area_Discovered_During_Visual_Insp_of_94_Ft_Elevation_Diesel_Bldg_Pipe_Trenches.Fire…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000528/LER-1989-017, :on 891023,four Unsealed Penetrations in Unit 3 Seismic Gap Area Discovered During Visual Insp of 94 Ft Elevation Diesel Bldg Pipe Trenches.Fire Watches Established in All Units.Sealing of Penetrations Underway

LER-1989-008-01, :on 890509,calculational Error Identified in Surveillance Test That Would Have Resulted in Boron Diluted Alarm Channel 2 Being Inoperable.Caused by Personnel Error. Technicians Counseled & Test Procedure Revised
type: Subject
label: 05000529/LER-1989-008-01, :on 890509,calculational Error Identified in Surveillance Test That Would Have Resulted in Boron Diluted Alarm Channel 2 Being Inoperable.Caused by Personnel Error. Technicians Counseled & Test Procedure Revised
page: https://kanterella.com/05000529/LER-2D1989-2D008-2D01-2C_-3Aon_890509-2Ccalculational_Error_Identified_in_Surveillance_Test_That_Would_Have_Resulted_in_Boron_Diluted_Alarm_Channel_2_Being_Inoperable.C…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000529/LER-1989-008-01, :on 890509,calculational Error Identified in Surveillance Test That Would Have Resulted in Boron Diluted Alarm Channel 2 Being Inoperable.Caused by Personnel Error. Technicians Counseled & Test Procedure Revised

LER-1991-028, :on on 910930,containment Airlock Door Seal Leakage Test Not Performed within Allowable Surveillance Interval.Caused by Inadequate Personnel Work Practices. Master Startup Checklist Amended
type: Subject
label: 05000397/LER-1991-028, :on on 910930,containment Airlock Door Seal Leakage Test Not Performed within Allowable Surveillance Interval.Caused by Inadequate Personnel Work Practices. Master Startup Checklist Amended
page: https://kanterella.com/05000397/LER-2D1991-2D028-2C_-3Aon_on_910930-2Ccontainment_Airlock_Door_Seal_Leakage_Test_Not_Performed_within_Allowable_Surveillance_Interval.Caused_by_Inadequate_Personnel_Wor…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1991-028, :on on 910930,containment Airlock Door Seal Leakage Test Not Performed within Allowable Surveillance Interval.Caused by Inadequate Personnel Work Practices. Master Startup Checklist Amended

LER-1991-022, :on 910905,inboard RHR Sys Shutdown Cooling Supply Valve Automatically Isolated on High Suction Line Flow Signal.Caused by Instrumentation Drift.Sys Realigned & Loop B Placed Back in Svc
type: Subject
label: 05000397/LER-1991-022, :on 910905,inboard RHR Sys Shutdown Cooling Supply Valve Automatically Isolated on High Suction Line Flow Signal.Caused by Instrumentation Drift.Sys Realigned & Loop B Placed Back in Svc
page: https://kanterella.com/05000397/LER-2D1991-2D022-2C_-3Aon_910905-2Cinboard_RHR_Sys_Shutdown_Cooling_Supply_Valve_Automatically_Isolated_on_High_Suction_Line_Flow_Signal.Caused_by_Instrumentation_Drift…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1991-022, :on 910905,inboard RHR Sys Shutdown Cooling Supply Valve Automatically Isolated on High Suction Line Flow Signal.Caused by Instrumentation Drift.Sys Realigned & Loop B Placed Back in Svc

Procedure Review.Changed Procedure
type: Subject
label: 05000397/LER-1991-021, :on 910801,determined That Tritium Sampling Was Not Being Performed During Startup,Shutdown & 15 Percent Power Change Evolutions.Caused by Inadequate Procedure/ Procedure Review.Changed Procedure
page: https://kanterella.com/05000397/LER-2D1991-2D021-2C_-3Aon_910801-2Cdetermined_That_Tritium_Sampling_Was_Not_Being_Performed_During_Startup-2CShutdown_-26_15_Percent_Power_Change_Evolutions.Caused_by_I…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1991-021, :on 910801,determined That Tritium Sampling Was Not Being Performed During Startup,Shutdown & 15 Percent Power Change Evolutions.Caused by Inadequate Procedure/ Procedure Review.Changed Procedure

LER-1991-030, :on 911104,small Leak Noted in Welded Connection Between RHR Sys Drain Valve & RHR Loop a Shutdown Cooling Return Valve.Caused by Const Fabrication Defect.Rhr Valve V-161A Isolated from RCS
type: Subject
label: 05000397/LER-1991-030, :on 911104,small Leak Noted in Welded Connection Between RHR Sys Drain Valve & RHR Loop a Shutdown Cooling Return Valve.Caused by Const Fabrication Defect.Rhr Valve V-161A Isolated from RCS
page: https://kanterella.com/05000397/LER-2D1991-2D030-2C_-3Aon_911104-2Csmall_Leak_Noted_in_Welded_Connection_Between_RHR_Sys_Drain_Valve_-26_RHR_Loop_a_Shutdown_Cooling_Return_Valve.Caused_by_Const_Fabric…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1991-030, :on 911104,small Leak Noted in Welded Connection Between RHR Sys Drain Valve & RHR Loop a Shutdown Cooling Return Valve.Caused by Const Fabrication Defect.Rhr Valve V-161A Isolated from RCS

Tech Specs Identified as Part of Program of Surveillance Procedure Verification.Further Evaluation Performed.Quality Action Team to Be Chartered to Evaluate Program
type: Subject
label: 05000397/LER-1991-013, :on 910507,non-compliances W/Tech Specs Identified as Part of Program of Surveillance Procedure Verification.Further Evaluation Performed.Quality Action Team to Be Chartered to Evaluate Program
page: https://kanterella.com/05000397/LER-2D1991-2D013-2C_-3Aon_910507-2Cnon-2Dcompliances_W/Tech_Specs_Identified_as_Part_of_Program_of_Surveillance_Procedure_Verification.Further_Evaluation_Performed.Qual…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1991-013, :on 910507,non-compliances W/Tech Specs Identified as Part of Program of Surveillance Procedure Verification.Further Evaluation Performed.Quality Action Team to Be Chartered to Evaluate Program

05000397/LER-1991-012, :on 910506,manual Initiation of Reactor Protection Sys Occurred Due to Low Scram Air Header Pressure.Caused by Hose Failure.Hose Replaced
type: Subject
page: https://kanterella.com/05000397/LER-2D1991-2D012-2C_-3Aon_910506-2Cmanual_Initiation_of_Reactor_Protection_Sys_Occurred_Due_to_Low_Scram_Air_Header_Pressure.Caused_by_Hose_Failure.Hose_Replaced
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1991-012, :on 910506,manual Initiation of Reactor Protection Sys Occurred Due to Low Scram Air Header Pressure.Caused by Hose Failure.Hose Replaced

05000397/LER-1990-029, :on 901108,inadequate Containment Penetration Testing Associated W/Wetwell Hatch Pressure Warning Devices Discovered
type: Subject
page: https://kanterella.com/05000397/LER-2D1990-2D029-2C_-3Aon_901108-2Cinadequate_Containment_Penetration_Testing_Associated_W/Wetwell_Hatch_Pressure_Warning_Devices_Discovered
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-029, :on 901108,inadequate Containment Penetration Testing Associated W/Wetwell Hatch Pressure Warning Devices Discovered

05000397/LER-1990-020, :on 900917,util Determined Overheating of Control Cabinet Could Cause Diesel Generator Failure
type: Subject
page: https://kanterella.com/05000397/LER-2D1990-2D020-2C_-3Aon_900917-2Cutil_Determined_Overheating_of_Control_Cabinet_Could_Cause_Diesel_Generator_Failure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-020, :on 900917,util Determined Overheating of Control Cabinet Could Cause Diesel Generator Failure

Fire
type: Subject
label: 05000397/LER-1990-012, :on 900527,failure of Diesel Generator Slip Ring End Bearing Resulted in Fire in Bearing Area.Caused by Mfg Error,Design Deficiency & Personnel Error.Emergency Operating Procedures Used to Deal W/Fire
page: https://kanterella.com/05000397/LER-2D1990-2D012-2C_-3Aon_900527-2Cfailure_of_Diesel_Generator_Slip_Ring_End_Bearing_Resulted_in_Fire_in_Bearing_Area.Caused_by_Mfg_Error-2CDesign_Deficiency_-26_Person…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-012, :on 900527,failure of Diesel Generator Slip Ring End Bearing Resulted in Fire in Bearing Area.Caused by Mfg Error,Design Deficiency & Personnel Error.Emergency Operating Procedures Used to Deal W/Fire

LER-1990-003, :on 900126,HPCS Sys Pump Suction Valve Switchover Occurred During Performance of Procedure for Draining Ref Leg.Caused by Plant Configuration.Sys Restored to pre-event Lineup Status
type: Subject
label: 05000397/LER-1990-003, :on 900126,HPCS Sys Pump Suction Valve Switchover Occurred During Performance of Procedure for Draining Ref Leg.Caused by Plant Configuration.Sys Restored to pre-event Lineup Status
page: https://kanterella.com/05000397/LER-2D1990-2D003-2C_-3Aon_900126-2CHPCS_Sys_Pump_Suction_Valve_Switchover_Occurred_During_Performance_of_Procedure_for_Draining_Ref_Leg.Caused_by_Plant_Configuration.Sy…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-003, :on 900126,HPCS Sys Pump Suction Valve Switchover Occurred During Performance of Procedure for Draining Ref Leg.Caused by Plant Configuration.Sys Restored to pre-event Lineup Status

LER-1990-014, :on 900703,HPCS Sys Pump Suction Switchover from Condensate Storage Tanks to Suppression Pool Occurred Due to Suppression Pool High Water Level Condition.Caused by Procedural Inadequacy.Procedures Modified
type: Subject
label: 05000397/LER-1990-014, :on 900703,HPCS Sys Pump Suction Switchover from Condensate Storage Tanks to Suppression Pool Occurred Due to Suppression Pool High Water Level Condition.Caused by Procedural Inadequacy.Procedures Modified
page: https://kanterella.com/05000397/LER-2D1990-2D014-2C_-3Aon_900703-2CHPCS_Sys_Pump_Suction_Switchover_from_Condensate_Storage_Tanks_to_Suppression_Pool_Occurred_Due_to_Suppression_Pool_High_Water_Level_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-014, :on 900703,HPCS Sys Pump Suction Switchover from Condensate Storage Tanks to Suppression Pool Occurred Due to Suppression Pool High Water Level Condition.Caused by Procedural Inadequacy.Procedures Modified

LER-1990-002, :on 900118,discovered That Main Steam Solenoid Pilot Valves Inoperable from June 1986 to June 1989.Caused by Personnel Error Due to Installation of Unqualified Power Connector.Connector Replaced
type: Subject
label: 05000397/LER-1990-002, :on 900118,discovered That Main Steam Solenoid Pilot Valves Inoperable from June 1986 to June 1989.Caused by Personnel Error Due to Installation of Unqualified Power Connector.Connector Replaced
page: https://kanterella.com/05000397/LER-2D1990-2D002-2C_-3Aon_900118-2Cdiscovered_That_Main_Steam_Solenoid_Pilot_Valves_Inoperable_from_June_1986_to_June_1989.Caused_by_Personnel_Error_Due_to_Installation…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-002, :on 900118,discovered That Main Steam Solenoid Pilot Valves Inoperable from June 1986 to June 1989.Caused by Personnel Error Due to Installation of Unqualified Power Connector.Connector Replaced

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 368A
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-1990-006, :on 900308,10CFR50 App R Cable Fire Protection Review Identified 12 New Cables in Fire Areas Vulnerable to Design Basis Fire.Caused by Equipment Design Deficiency. Items Placed on Hourly Fire Watch
type: Subject
label: 05000397/LER-1990-006, :on 900308,10CFR50 App R Cable Fire Protection Review Identified 12 New Cables in Fire Areas Vulnerable to Design Basis Fire.Caused by Equipment Design Deficiency. Items Placed on Hourly Fire Watch
page: https://kanterella.com/05000397/LER-2D1990-2D006-2C_-3Aon_900308-2C10CFR50_App_R_Cable_Fire_Protection_Review_Identified_12_New_Cables_in_Fire_Areas_Vulnerable_to_Design_Basis_Fire.Caused_by_Equipment…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-006, :on 900308,10CFR50 App R Cable Fire Protection Review Identified 12 New Cables in Fire Areas Vulnerable to Design Basis Fire.Caused by Equipment Design Deficiency. Items Placed on Hourly Fire Watch

Diesel Generator Fuel Oil Testing Showed No Requirement to Check for Water in Day Tanks.Caused by Less than Adequate Procedure Preparation
type: Subject
label: 05000397/LER-1990-007, :on 900314,review of Plant Procedures Associated W/Diesel Generator Fuel Oil Testing Showed No Requirement to Check for Water in Day Tanks.Caused by Less than Adequate Procedure Preparation
page: https://kanterella.com/05000397/LER-2D1990-2D007-2C_-3Aon_900314-2Creview_of_Plant_Procedures_Associated_W/Diesel_Generator_Fuel_Oil_Testing_Showed_No_Requirement_to_Check_for_Water_in_Day_Tanks.Cause…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-007, :on 900314,review of Plant Procedures Associated W/Diesel Generator Fuel Oil Testing Showed No Requirement to Check for Water in Day Tanks.Caused by Less than Adequate Procedure Preparation

LER-1990-010, :on 900517,secondary Containment Isolation Occurred During Reactor Refueling Outage.Caused by Inadequate Work Control.Work Control Procedures Will Be Reviewed to Determine If Addl Steps Needed
type: Subject
label: 05000397/LER-1990-010, :on 900517,secondary Containment Isolation Occurred During Reactor Refueling Outage.Caused by Inadequate Work Control.Work Control Procedures Will Be Reviewed to Determine If Addl Steps Needed
page: https://kanterella.com/05000397/LER-2D1990-2D010-2C_-3Aon_900517-2Csecondary_Containment_Isolation_Occurred_During_Reactor_Refueling_Outage.Caused_by_Inadequate_Work_Control.Work_Control_Procedures_Wi…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-010, :on 900517,secondary Containment Isolation Occurred During Reactor Refueling Outage.Caused by Inadequate Work Control.Work Control Procedures Will Be Reviewed to Determine If Addl Steps Needed

LER-1989-016, :on 890514,reactor Operator Inadvertently Tripped Div 1 & 2 Offsite Power Supply Feeders Resulting in Loss of Power to Buses SM-7 & SM-4.Caused by Inadvertent Removal of Transformer Fuses.Fuses Reinserted
type: Subject
label: 05000397/LER-1989-016, :on 890514,reactor Operator Inadvertently Tripped Div 1 & 2 Offsite Power Supply Feeders Resulting in Loss of Power to Buses SM-7 & SM-4.Caused by Inadvertent Removal of Transformer Fuses.Fuses Reinserted
page: https://kanterella.com/05000397/LER-2D1989-2D016-2C_-3Aon_890514-2Creactor_Operator_Inadvertently_Tripped_Div_1_-26_2_Offsite_Power_Supply_Feeders_Resulting_in_Loss_of_Power_to_Buses_SM-2D7_-26_SM-2D4…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1989-016, :on 890514,reactor Operator Inadvertently Tripped Div 1 & 2 Offsite Power Supply Feeders Resulting in Loss of Power to Buses SM-7 & SM-4.Caused by Inadvertent Removal of Transformer Fuses.Fuses Reinserted

LER-1989-002, :on 890130,reactor Scram Occurred Due to Turbine Control Valve Fast Closure Actuation of Reactor Protective Sys Logic.Caused by Equipment Design Deficiency. Damaged 500 Kv Insulator Stack Replaced
type: Subject
label: 05000397/LER-1989-002, :on 890130,reactor Scram Occurred Due to Turbine Control Valve Fast Closure Actuation of Reactor Protective Sys Logic.Caused by Equipment Design Deficiency. Damaged 500 Kv Insulator Stack Replaced
page: https://kanterella.com/05000397/LER-2D1989-2D002-2C_-3Aon_890130-2Creactor_Scram_Occurred_Due_to_Turbine_Control_Valve_Fast_Closure_Actuation_of_Reactor_Protective_Sys_Logic.Caused_by_Equipment_Design…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1989-002, :on 890130,reactor Scram Occurred Due to Turbine Control Valve Fast Closure Actuation of Reactor Protective Sys Logic.Caused by Equipment Design Deficiency. Damaged 500 Kv Insulator Stack Replaced

LER-1989-012, :on 890505,unplanned Reactor Scram Occurred During Performance of Reactor Protection Sys Logic Sys Functional Test.Caused by Procedural Inadequacy.Procedure Will Be Revised to Provide Specific Resetting
type: Subject
label: 05000397/LER-1989-012, :on 890505,unplanned Reactor Scram Occurred During Performance of Reactor Protection Sys Logic Sys Functional Test.Caused by Procedural Inadequacy.Procedure Will Be Revised to Provide Specific Resetting
page: https://kanterella.com/05000397/LER-2D1989-2D012-2C_-3Aon_890505-2Cunplanned_Reactor_Scram_Occurred_During_Performance_of_Reactor_Protection_Sys_Logic_Sys_Functional_Test.Caused_by_Procedural_Inadequa…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1989-012, :on 890505,unplanned Reactor Scram Occurred During Performance of Reactor Protection Sys Logic Sys Functional Test.Caused by Procedural Inadequacy.Procedure Will Be Revised to Provide Specific Resetting

05000397/LER-1990-024, :on 900907,diesel Generator Started on Undervoltage Due to Voltage Disturbances
type: Subject
page: https://kanterella.com/05000397/LER-2D1990-2D024-2C_-3Aon_900907-2Cdiesel_Generator_Started_on_Undervoltage_Due_to_Voltage_Disturbances
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1990-024, :on 900907,diesel Generator Started on Undervoltage Due to Voltage Disturbances

LER-1989-022, :on 890530,loss of Secondary Containment During Core Alterations Due to Unisolatable Lines Occurred.Caused by Simultaneous Activities.Rhr Heat Exchanger Isolation Valves Closed to Reestablish Integrity
type: Subject
label: 05000397/LER-1989-022, :on 890530,loss of Secondary Containment During Core Alterations Due to Unisolatable Lines Occurred.Caused by Simultaneous Activities.Rhr Heat Exchanger Isolation Valves Closed to Reestablish Integrity
page: https://kanterella.com/05000397/LER-2D1989-2D022-2C_-3Aon_890530-2Closs_of_Secondary_Containment_During_Core_Alterations_Due_to_Unisolatable_Lines_Occurred.Caused_by_Simultaneous_Activities.Rhr_Heat_E…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-1989-022, :on 890530,loss of Secondary Containment During Core Alterations Due to Unisolatable Lines Occurred.Caused by Simultaneous Activities.Rhr Heat Exchanger Isolation Valves Closed to Reestablish Integrity

05000244/LER-1996-001, :on 950504,inservice Test Not Performed During Refueling Outage.Caused by Inadequate Tracking of Surveillance Frequency.Valve Test Performed & Disassembled
type: Subject
page: https://kanterella.com/05000244/LER-2D1996-2D001-2C_-3Aon_950504-2Cinservice_Test_Not_Performed_During_Refueling_Outage.Caused_by_Inadequate_Tracking_of_Surveillance_Frequency.Valve_Test_Performed_-26…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000244/LER-1996-001, :on 950504,inservice Test Not Performed During Refueling Outage.Caused by Inadequate Tracking of Surveillance Frequency.Valve Test Performed & Disassembled

LER-1993-002, :on 930404,during 1993 SG Eddy Current Exam, Determined 1- of Total Tubes in SG a & B Degraded.Caused by Iga & IGSCC within Tube Sheet Crevice Region.Tubes Welded Using Tube Sheet Sleeve
type: Subject
label: 05000244/LER-1993-002, :on 930404,during 1993 SG Eddy Current Exam, Determined 1% of Total Tubes in SG a & B Degraded.Caused by Iga & IGSCC within Tube Sheet Crevice Region.Tubes Welded Using Tube Sheet Sleeve
page: https://kanterella.com/05000244/LER-2D1993-2D002-2C_-3Aon_930404-2Cduring_1993_SG_Eddy_Current_Exam-2C_Determined_1-_of_Total_Tubes_in_SG_a_-26_B_Degraded.Caused_by_Iga_-26_IGSCC_within_Tube_Sheet_Cre…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000244/LER-1993-002, :on 930404,during 1993 SG Eddy Current Exam, Determined 1% of Total Tubes in SG a & B Degraded.Caused by Iga & IGSCC within Tube Sheet Crevice Region.Tubes Welded Using Tube Sheet Sleeve

05000244/LER-1992-005, :on 920420,determined That 242 Tubes in a SG & 216 Tubes in B SG Required Corrective Action Due to Tube Degradation.Affected Tubes Either Sleeved or Plugged.W/
type: Subject
page: https://kanterella.com/05000244/LER-2D1992-2D005-2C_-3Aon_920420-2Cdetermined_That_242_Tubes_in_a_SG_-26_216_Tubes_in_B_SG_Required_Corrective_Action_Due_to_Tube_Degradation.Affected_Tubes_Either_Slee…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000244/LER-1992-005, :on 920420,determined That 242 Tubes in a SG & 216 Tubes in B SG Required Corrective Action Due to Tube Degradation.Affected Tubes Either Sleeved or Plugged.W/

05000244/LER-1993-003, :on 930328,discovered Failures of Safeguard Svc Water Sys During Planned Maint.Caused by Design & Operating Environ.Replaced Affected Valves W/Qualified Spares.W/
type: Subject
page: https://kanterella.com/05000244/LER-2D1993-2D003-2C_-3Aon_930328-2Cdiscovered_Failures_of_Safeguard_Svc_Water_Sys_During_Planned_Maint.Caused_by_Design_-26_Operating_Environ.Replaced_Affected_Valves_W…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000244/LER-1993-003, :on 930328,discovered Failures of Safeguard Svc Water Sys During Planned Maint.Caused by Design & Operating Environ.Replaced Affected Valves W/Qualified Spares.W/

LER-1992-003, :on 920229,reactor Trip Occurred Due to Lo Lo Level in Steam Generator B.Caused by Plugged Instrument Tubing for Feedwater Pump a Seal Injection Differential Pressure Switch.Turbine Flushed
type: Subject
label: 05000244/LER-1992-003, :on 920229,reactor Trip Occurred Due to Lo Lo Level in Steam Generator B.Caused by Plugged Instrument Tubing for Feedwater Pump a Seal Injection Differential Pressure Switch.Turbine Flushed
page: https://kanterella.com/05000244/LER-2D1992-2D003-2C_-3Aon_920229-2Creactor_Trip_Occurred_Due_to_Lo_Lo_Level_in_Steam_Generator_B.Caused_by_Plugged_Instrument_Tubing_for_Feedwater_Pump_a_Seal_Injection…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000244/LER-1992-003, :on 920229,reactor Trip Occurred Due to Lo Lo Level in Steam Generator B.Caused by Plugged Instrument Tubing for Feedwater Pump a Seal Injection Differential Pressure Switch.Turbine Flushed

05000244/LER-1992-007, :on 921224,turbine Runback Occurred & a EDG Started & Tied Into Safeguard Buses 14 & 18.Caused by Loss of Power to Safeguards.Restored Normal Power to Safeguards Buses 14 & 18
type: Subject
page: https://kanterella.com/05000244/LER-2D1992-2D007-2C_-3Aon_921224-2Cturbine_Runback_Occurred_-26_a_EDG_Started_-26_Tied_Into_Safeguard_Buses_14_-26_18.Caused_by_Loss_of_Power_to_Safeguards.Restored_Nor…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000244/LER-1992-007, :on 921224,turbine Runback Occurred & a EDG Started & Tied Into Safeguard Buses 14 & 18.Caused by Loss of Power to Safeguards.Restored Normal Power to Safeguards Buses 14 & 18

LER-1998-009, :on 981223,noted That Facility Operated Outside of Design Basis.Caused by non-conservative MSLB Analysis Inputs.Will Review SR Component Differences Between Units & Will re-baseline LTOP Analysis.With
type: Subject
label: 05000335/LER-1998-009, :on 981223,noted That Facility Operated Outside of Design Basis.Caused by non-conservative MSLB Analysis Inputs.Will Review SR Component Differences Between Units & Will re-baseline LTOP Analysis.With
page: https://kanterella.com/05000335/LER-2D1998-2D009-2C_-3Aon_981223-2Cnoted_That_Facility_Operated_Outside_of_Design_Basis.Caused_by_non-2Dconservative_MSLB_Analysis_Inputs.Will_Review_SR_Component_Diffe…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1998-009, :on 981223,noted That Facility Operated Outside of Design Basis.Caused by non-conservative MSLB Analysis Inputs.Will Review SR Component Differences Between Units & Will re-baseline LTOP Analysis.With

LER-1999-002, :on 990311,SG ECT Error Caused Operation with Condition Prohibited by Ts.Caused by Deficiencies in Data Analysis Guideline Instructions.Licensee Will Change Data Analysis Guidelines for Lead Analysts.With
type: Subject
label: 05000389/LER-1999-002, :on 990311,SG ECT Error Caused Operation with Condition Prohibited by Ts.Caused by Deficiencies in Data Analysis Guideline Instructions.Licensee Will Change Data Analysis Guidelines for Lead Analysts.With
page: https://kanterella.com/05000389/LER-2D1999-2D002-2C_-3Aon_990311-2CSG_ECT_Error_Caused_Operation_with_Condition_Prohibited_by_Ts.Caused_by_Deficiencies_in_Data_Analysis_Guideline_Instructions.Licensee…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1999-002, :on 990311,SG ECT Error Caused Operation with Condition Prohibited by Ts.Caused by Deficiencies in Data Analysis Guideline Instructions.Licensee Will Change Data Analysis Guidelines for Lead Analysts.With

O Available Oxygen Analyzers,Which Is Prohibited by Ts.Caused by Inadequate Licensee Review of License Amend. Oxygen Analyzer Recalibrated
type: Subject
label: 05000389/LER-1998-004-01, :on 980430,discovered Waste Gas Decay Tank Operation W/O Available Oxygen Analyzers,Which Is Prohibited by Ts.Caused by Inadequate Licensee Review of License Amend. Oxygen Analyzer Recalibrated
page: https://kanterella.com/05000389/LER-2D1998-2D004-2D01-2C_-3Aon_980430-2Cdiscovered_Waste_Gas_Decay_Tank_Operation_W/O_Available_Oxygen_Analyzers-2CWhich_Is_Prohibited_by_Ts.Caused_by_Inadequate_Licens…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1998-004-01, :on 980430,discovered Waste Gas Decay Tank Operation W/O Available Oxygen Analyzers,Which Is Prohibited by Ts.Caused by Inadequate Licensee Review of License Amend. Oxygen Analyzer Recalibrated

LER-1997-007, :on 970502,reactor Coolant Pump Oil Collection Sys Was Outside App R Design Bases.Identified Leak Sites Were Repaired & Mods to RCP Oil Collection Sys to Capture Any Future Leakage from Areas
type: Subject
label: 05000335/LER-1997-007, :on 970502,reactor Coolant Pump Oil Collection Sys Was Outside App R Design Bases.Identified Leak Sites Were Repaired & Mods to RCP Oil Collection Sys to Capture Any Future Leakage from Areas
page: https://kanterella.com/05000335/LER-2D1997-2D007-2C_-3Aon_970502-2Creactor_Coolant_Pump_Oil_Collection_Sys_Was_Outside_App_R_Design_Bases.Identified_Leak_Sites_Were_Repaired_-26_Mods_to_RCP_Oil_Collec…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1997-007, :on 970502,reactor Coolant Pump Oil Collection Sys Was Outside App R Design Bases.Identified Leak Sites Were Repaired & Mods to RCP Oil Collection Sys to Capture Any Future Leakage from Areas

LER-1997-001, :on 970221,identified Deficiencies in Post Accident Sampling Systems (Pass).Caused by Failure of Personnel to Specify Drawing Update Requirements.Added PASS to List of Maint Rule Systems
type: Subject
label: 05000335/LER-1997-001, :on 970221,identified Deficiencies in Post Accident Sampling Systems (Pass).Caused by Failure of Personnel to Specify Drawing Update Requirements.Added PASS to List of Maint Rule Systems
page: https://kanterella.com/05000335/LER-2D1997-2D001-2C_-3Aon_970221-2Cidentified_Deficiencies_in_Post_Accident_Sampling_Systems_-28Pass-29.Caused_by_Failure_of_Personnel_to_Specify_Drawing_Update_Require…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1997-001, :on 970221,identified Deficiencies in Post Accident Sampling Systems (Pass).Caused by Failure of Personnel to Specify Drawing Update Requirements.Added PASS to List of Maint Rule Systems

LER-1997-007-02, :on 971008,inoperable Containment Cooling Fan Resulted in Operation of Facility Outside Design Basis. Caused by non-cognitive Personnel Error.Ccs Operation Was Revised & Issued on 971013
type: Subject
label: 05000389/LER-1997-007-02, :on 971008,inoperable Containment Cooling Fan Resulted in Operation of Facility Outside Design Basis. Caused by non-cognitive Personnel Error.Ccs Operation Was Revised & Issued on 971013
page: https://kanterella.com/05000389/LER-2D1997-2D007-2D02-2C_-3Aon_971008-2Cinoperable_Containment_Cooling_Fan_Resulted_in_Operation_of_Facility_Outside_Design_Basis._Caused_by_non-2Dcognitive_Personnel_E…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1997-007-02, :on 971008,inoperable Containment Cooling Fan Resulted in Operation of Facility Outside Design Basis. Caused by non-cognitive Personnel Error.Ccs Operation Was Revised & Issued on 971013

Ts Requirements. Eliminated Overload Cut Off Limit Bypass
type: Subject
label: 05000335/LER-1997-004, :on 970402,refueling Machine Was Operating in Manner Prohibited by TS Due to Original Design of Refueling Machine Bypass Feature Conflicting W/Ts Requirements. Eliminated Overload Cut Off Limit Bypass
page: https://kanterella.com/05000335/LER-2D1997-2D004-2C_-3Aon_970402-2Crefueling_Machine_Was_Operating_in_Manner_Prohibited_by_TS_Due_to_Original_Design_of_Refueling_Machine_Bypass_Feature_Conflicting_W/T…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1997-004, :on 970402,refueling Machine Was Operating in Manner Prohibited by TS Due to Original Design of Refueling Machine Bypass Feature Conflicting W/Ts Requirements. Eliminated Overload Cut Off Limit Bypass

4 Actuation Logic Was Satisfactorily Performed on 961211
type: Subject
label: 05000389/LER-1996-007-02, :on 961211,operation Prohibited by TSs Occurred Due to Inadequate Surveillance of MSIS Actuation Logic. Testing of MSIS High Containment Pressure 2/4 Actuation Logic Was Satisfactorily Performed on 961211
page: https://kanterella.com/05000389/LER-2D1996-2D007-2D02-2C_-3Aon_961211-2Coperation_Prohibited_by_TSs_Occurred_Due_to_Inadequate_Surveillance_of_MSIS_Actuation_Logic._Testing_of_MSIS_High_Containment_Pr…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1996-007-02, :on 961211,operation Prohibited by TSs Occurred Due to Inadequate Surveillance of MSIS Actuation Logic. Testing of MSIS High Containment Pressure 2/4 Actuation Logic Was Satisfactorily Performed on 961211

As:Rev of Maint Procedures to Include Verification That Plant Conditions IAW TS Requirements Prior to Installation
type: Subject
label: 05000335/LER-1996-009, :on 960710,operation Prohibited by Tss.Caused by Procedural Inadequacy & Personnel Error.C/As:Rev of Maint Procedures to Include Verification That Plant Conditions IAW TS Requirements Prior to Installation
page: https://kanterella.com/05000335/LER-2D1996-2D009-2C_-3Aon_960710-2Coperation_Prohibited_by_Tss.Caused_by_Procedural_Inadequacy_-26_Personnel_Error.C/As-3ARev_of_Maint_Procedures_to_Include_Verificatio…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1996-009, :on 960710,operation Prohibited by Tss.Caused by Procedural Inadequacy & Personnel Error.C/As:Rev of Maint Procedures to Include Verification That Plant Conditions IAW TS Requirements Prior to Installation

05000335/LER-1996-001-02, :on 960219,control Room Emergency Ventilation Sys Inoperable Due to Improper Sys Configuration Occurred. Caused by Inadequate Guidance & Work Controls.Cr Boundary Reviewed
type: Subject
page: https://kanterella.com/05000335/LER-2D1996-2D001-2D02-2C_-3Aon_960219-2Ccontrol_Room_Emergency_Ventilation_Sys_Inoperable_Due_to_Improper_Sys_Configuration_Occurred._Caused_by_Inadequate_Guidance_-26_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1996-001-02, :on 960219,control Room Emergency Ventilation Sys Inoperable Due to Improper Sys Configuration Occurred. Caused by Inadequate Guidance & Work Controls.Cr Boundary Reviewed

LER-1996-007-01, :on 960607,1B EDG Inadvertently Started Due to Procedural Inadequacy.Reset B Channel Cias & Reenergized 1B3 4,160 Bus from Startup Transformer.Changes Made to MPs 1-0970027 & 1-0970028
type: Subject
label: 05000335/LER-1996-007-01, :on 960607,1B EDG Inadvertently Started Due to Procedural Inadequacy.Reset B Channel Cias & Reenergized 1B3 4,160 Bus from Startup Transformer.Changes Made to MPs 1-0970027 & 1-0970028
page: https://kanterella.com/05000335/LER-2D1996-2D007-2D01-2C_-3Aon_960607-2C1B_EDG_Inadvertently_Started_Due_to_Procedural_Inadequacy.Reset_B_Channel_Cias_-26_Reenergized_1B3_4-2C160_Bus_from_Startup_Tran…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1996-007-01, :on 960607,1B EDG Inadvertently Started Due to Procedural Inadequacy.Reset B Channel Cias & Reenergized 1B3 4,160 Bus from Startup Transformer.Changes Made to MPs 1-0970027 & 1-0970028

LER-1996-005-01, :on 960514,wide Range Nuclear Instrumentation Channel Rendered Inoperable When Required to Be in Svc for Fuel Movement.Caused by Personnel Error.Applicable Personnel Counseled & Surveillance Procedure Revised
type: Subject
label: 05000335/LER-1996-005-01, :on 960514,wide Range Nuclear Instrumentation Channel Rendered Inoperable When Required to Be in Svc for Fuel Movement.Caused by Personnel Error.Applicable Personnel Counseled & Surveillance Procedure Revised
page: https://kanterella.com/05000335/LER-2D1996-2D005-2D01-2C_-3Aon_960514-2Cwide_Range_Nuclear_Instrumentation_Channel_Rendered_Inoperable_When_Required_to_Be_in_Svc_for_Fuel_Movement.Caused_by_Personnel_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1996-005-01, :on 960514,wide Range Nuclear Instrumentation Channel Rendered Inoperable When Required to Be in Svc for Fuel Movement.Caused by Personnel Error.Applicable Personnel Counseled & Surveillance Procedure Revised

05000335/LER-1996-012, :on 960831,manual Reactor Trip Occurred.Caused by Increased Gas Accumulation in 1B Main Transformer. Insp of 1B Main Transformer Cooling Sys Performed & Oil Cooler Replaced
type: Subject
page: https://kanterella.com/05000335/LER-2D1996-2D012-2C_-3Aon_960831-2Cmanual_Reactor_Trip_Occurred.Caused_by_Increased_Gas_Accumulation_in_1B_Main_Transformer._Insp_of_1B_Main_Transformer_Cooling_Sys_Per…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1996-012, :on 960831,manual Reactor Trip Occurred.Caused by Increased Gas Accumulation in 1B Main Transformer. Insp of 1B Main Transformer Cooling Sys Performed & Oil Cooler Replaced

LER-1996-005-02, :on 961206,determined That Independent Operability of Trip Coils Had Not Been Adequately Tested. Caused by Inadequate Surveillance Procedure.Performed Testing of Coils & Revised Procedures
type: Subject
label: 05000389/LER-1996-005-02, :on 961206,determined That Independent Operability of Trip Coils Had Not Been Adequately Tested. Caused by Inadequate Surveillance Procedure.Performed Testing of Coils & Revised Procedures
page: https://kanterella.com/05000389/LER-2D1996-2D005-2D02-2C_-3Aon_961206-2Cdetermined_That_Independent_Operability_of_Trip_Coils_Had_Not_Been_Adequately_Tested._Caused_by_Inadequate_Surveillance_Procedur…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1996-005-02, :on 961206,determined That Independent Operability of Trip Coils Had Not Been Adequately Tested. Caused by Inadequate Surveillance Procedure.Performed Testing of Coils & Revised Procedures

LER-1997-001-03, :on 970423,containment Isolation Actuation Occurred.Caused by Increased Radiation Levels During Removal of Upper Guide Structure.Proper Actuation of Containment Isolation Components Was Verified
type: Subject
label: 05000389/LER-1997-001-03, :on 970423,containment Isolation Actuation Occurred.Caused by Increased Radiation Levels During Removal of Upper Guide Structure.Proper Actuation of Containment Isolation Components Was Verified
page: https://kanterella.com/05000389/LER-2D1997-2D001-2D03-2C_-3Aon_970423-2Ccontainment_Isolation_Actuation_Occurred.Caused_by_Increased_Radiation_Levels_During_Removal_of_Upper_Guide_Structure.Proper_Act…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1997-001-03, :on 970423,containment Isolation Actuation Occurred.Caused by Increased Radiation Levels During Removal of Upper Guide Structure.Proper Actuation of Containment Isolation Components Was Verified

Control Element Drive Mechanism Potentially Unlatched.Possibly Caused by Personnel Error.Cea Relatched & Latching Procedure Modified
type: Subject
label: 05000335/LER-1993-005-02, :on 930529,discovered That One CEA of Dual Element/Control Element Drive Mechanism Potentially Unlatched.Possibly Caused by Personnel Error.Cea Relatched & Latching Procedure Modified
page: https://kanterella.com/05000335/LER-2D1993-2D005-2D02-2C_-3Aon_930529-2Cdiscovered_That_One_CEA_of_Dual_Element/Control_Element_Drive_Mechanism_Potentially_Unlatched.Possibly_Caused_by_Personnel_Error…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1993-005-02, :on 930529,discovered That One CEA of Dual Element/Control Element Drive Mechanism Potentially Unlatched.Possibly Caused by Personnel Error.Cea Relatched & Latching Procedure Modified

LER-1995-007, :on 950817,inadvertent Containment Spray Via 1A Low Pressure SI Pump While Venting ECCS During Startup Due to Inadequate Procedure.Operators Stopped 1A LPSI Pump & Isolated SDC HX to Stop Spray
type: Subject
label: 05000335/LER-1995-007, :on 950817,inadvertent Containment Spray Via 1A Low Pressure SI Pump While Venting ECCS During Startup Due to Inadequate Procedure.Operators Stopped 1A LPSI Pump & Isolated SDC HX to Stop Spray
page: https://kanterella.com/05000335/LER-2D1995-2D007-2C_-3Aon_950817-2Cinadvertent_Containment_Spray_Via_1A_Low_Pressure_SI_Pump_While_Venting_ECCS_During_Startup_Due_to_Inadequate_Procedure.Operators_Sto…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000335/LER-1995-007, :on 950817,inadvertent Containment Spray Via 1A Low Pressure SI Pump While Venting ECCS During Startup Due to Inadequate Procedure.Operators Stopped 1A LPSI Pump & Isolated SDC HX to Stop Spray

LER-1992-008-02, :on 921105,digital Data Process Sys Indicated Power Level Slightly Greater than 100-,due to RTD Instrument Error.Failed RTDs Will Be Evaluated by Consultant for Root Cause Analysis
type: Subject
label: 05000389/LER-1992-008-02, :on 921105,digital Data Process Sys Indicated Power Level Slightly Greater than 100%,due to RTD Instrument Error.Failed RTDs Will Be Evaluated by Consultant for Root Cause Analysis
page: https://kanterella.com/05000389/LER-2D1992-2D008-2D02-2C_-3Aon_921105-2Cdigital_Data_Process_Sys_Indicated_Power_Level_Slightly_Greater_than_100--2Cdue_to_RTD_Instrument_Error.Failed_RTDs_Will_Be_Eval…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1992-008-02, :on 921105,digital Data Process Sys Indicated Power Level Slightly Greater than 100%,due to RTD Instrument Error.Failed RTDs Will Be Evaluated by Consultant for Root Cause Analysis

LER-1992-002-03, :on 920430,containment Pressure Channel C Sensing Line for Containment Pressure Instrument PT-07-2C Process Line in Containment Capped.Caused by Personnel Error.Cap on Channel C Removed
type: Subject
label: 05000389/LER-1992-002-03, :on 920430,containment Pressure Channel C Sensing Line for Containment Pressure Instrument PT-07-2C Process Line in Containment Capped.Caused by Personnel Error.Cap on Channel C Removed
page: https://kanterella.com/05000389/LER-2D1992-2D002-2D03-2C_-3Aon_920430-2Ccontainment_Pressure_Channel_C_Sensing_Line_for_Containment_Pressure_Instrument_PT-2D07-2D2C_Process_Line_in_Containment_Capped.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1992-002-03, :on 920430,containment Pressure Channel C Sensing Line for Containment Pressure Instrument PT-07-2C Process Line in Containment Capped.Caused by Personnel Error.Cap on Channel C Removed

LER-1992-001, :on 920421,three of Four Local Power Density pre-trips in RPS Alarmed & Turbine Remained Tied to Sys Grid.Caused by Inadequate Core Axial Shape Index Mgt Guidelines.Procedures Changed
type: Subject
label: 05000389/LER-1992-001, :on 920421,three of Four Local Power Density pre-trips in RPS Alarmed & Turbine Remained Tied to Sys Grid.Caused by Inadequate Core Axial Shape Index Mgt Guidelines.Procedures Changed
page: https://kanterella.com/05000389/LER-2D1992-2D001-2C_-3Aon_920421-2Cthree_of_Four_Local_Power_Density_pre-2Dtrips_in_RPS_Alarmed_-26_Turbine_Remained_Tied_to_Sys_Grid.Caused_by_Inadequate_Core_Axial_Sh…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1992-001, :on 920421,three of Four Local Power Density pre-trips in RPS Alarmed & Turbine Remained Tied to Sys Grid.Caused by Inadequate Core Axial Shape Index Mgt Guidelines.Procedures Changed

LER-1992-003-03, :on 920526,EDG 2B Inadvertently Actuated When Relay Installed in Cubicle 1 of 4,160-volt Bus 2B3.Caused by Design Error.Electrical Loads Returned to Normal & Test Circuit Design Will Be Changed
type: Subject
label: 05000389/LER-1992-003-03, :on 920526,EDG 2B Inadvertently Actuated When Relay Installed in Cubicle 1 of 4,160-volt Bus 2B3.Caused by Design Error.Electrical Loads Returned to Normal & Test Circuit Design Will Be Changed
page: https://kanterella.com/05000389/LER-2D1992-2D003-2D03-2C_-3Aon_920526-2CEDG_2B_Inadvertently_Actuated_When_Relay_Installed_in_Cubicle_1_of_4-2C160-2Dvolt_Bus_2B3.Caused_by_Design_Error.Electrical_Load…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1992-003-03, :on 920526,EDG 2B Inadvertently Actuated When Relay Installed in Cubicle 1 of 4,160-volt Bus 2B3.Caused by Design Error.Electrical Loads Returned to Normal & Test Circuit Design Will Be Changed

LER-1989-002-01, :on 890309,containment Isolation Valve for Primary Water Had Leak Rate in Excess of Tech Specs.Caused by Failure to Perform post-maint Leak Rate Testing Due to Procedural Deficiency.Valve Repacked
type: Subject
label: 05000389/LER-1989-002-01, :on 890309,containment Isolation Valve for Primary Water Had Leak Rate in Excess of Tech Specs.Caused by Failure to Perform post-maint Leak Rate Testing Due to Procedural Deficiency.Valve Repacked
page: https://kanterella.com/05000389/LER-2D1989-2D002-2D01-2C_-3Aon_890309-2Ccontainment_Isolation_Valve_for_Primary_Water_Had_Leak_Rate_in_Excess_of_Tech_Specs.Caused_by_Failure_to_Perform_post-2Dmaint_Le…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000389/LER-1989-002-01, :on 890309,containment Isolation Valve for Primary Water Had Leak Rate in Excess of Tech Specs.Caused by Failure to Perform post-maint Leak Rate Testing Due to Procedural Deficiency.Valve Repacked

05000397/LER-2017-001, Regarding Contactor Coil Failure Results in Tripping of HPCS Diesel Mixed Air Fan
type: Subject
page: https://kanterella.com/05000397/LER-2D2017-2D001-2C_Regarding_Contactor_Coil_Failure_Results_in_Tripping_of_HPCS_Diesel_Mixed_Air_Fan
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-2017-001, Regarding Contactor Coil Failure Results in Tripping of HPCS Diesel Mixed Air Fan

05000410/LER-1990-021-01, :on 901026,TS Violation Re RHR Sys Valve Tests Not Included in Inservice Test Pump/Valve Program Plan Occurred
type: Subject
page: https://kanterella.com/05000410/LER-2D1990-2D021-2D01-2C_-3Aon_901026-2CTS_Violation_Re_RHR_Sys_Valve_Tests_Not_Included_in_Inservice_Test_Pump/Valve_Program_Plan_Occurred
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000410/LER-1990-021-01, :on 901026,TS Violation Re RHR Sys Valve Tests Not Included in Inservice Test Pump/Valve Program Plan Occurred

ML17229A690
type: Subject
page: https://kanterella.com/ML17229A690
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML17229A690

05000366/LER-2016-002, Regarding Group 1 Isolation Received During Turbine Testing
type: Subject
page: https://kanterella.com/05000366/LER-2D2016-2D002-2C_Regarding_Group_1_Isolation_Received_During_Turbine_Testing
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000366/LER-2016-002, Regarding Group 1 Isolation Received During Turbine Testing

05000219/LER-2015-003, Regarding Failure of the No. 1 Emergency Diesel Generator to Start During Surveillance Testing
type: Subject
page: https://kanterella.com/05000219/LER-2D2015-2D003-2C_Regarding_Failure_of_the_No._1_Emergency_Diesel_Generator_to_Start_During_Surveillance_Testing
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000219/LER-2015-003, Regarding Failure of the No. 1 Emergency Diesel Generator to Start During Surveillance Testing

05000331/LER-2015-002, Regarding Unanalyzed Condition Due to Degraded Primary Containment Suppression Pool Coating
type: Subject
page: https://kanterella.com/05000331/LER-2D2015-2D002-2C_Regarding_Unanalyzed_Condition_Due_to_Degraded_Primary_Containment_Suppression_Pool_Coating
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000331/LER-2015-002, Regarding Unanalyzed Condition Due to Degraded Primary Containment Suppression Pool Coating

05000348/LER-2015-001, Regarding Automatic Actuation of the Auxiliary Feedwater System When the 1B SGFP Was Tripped
type: Subject
page: https://kanterella.com/05000348/LER-2D2015-2D001-2C_Regarding_Automatic_Actuation_of_the_Auxiliary_Feedwater_System_When_the_1B_SGFP_Was_Tripped
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000348/LER-2015-001, Regarding Automatic Actuation of the Auxiliary Feedwater System When the 1B SGFP Was Tripped

05000425/LER-2015-002, Regarding Inadvertent Auxiliary Feedwater Actuation
type: Subject
page: https://kanterella.com/05000425/LER-2D2015-2D002-2C_Regarding_Inadvertent_Auxiliary_Feedwater_Actuation
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000425/LER-2015-002, Regarding Inadvertent Auxiliary Feedwater Actuation

05000397/LER-2014-002, Regarding Unanalyzed Condition Resulting from Direct Current (DC) Ammeter Circuits Without Overcurrent Protection
type: Subject
page: https://kanterella.com/05000397/LER-2D2014-2D002-2C_Regarding_Unanalyzed_Condition_Resulting_from_Direct_Current_-28DC-29_Ammeter_Circuits_Without_Overcurrent_Protection
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-2014-002, Regarding Unanalyzed Condition Resulting from Direct Current (DC) Ammeter Circuits Without Overcurrent Protection

05000454/LER-2014-003, Regarding Diesel Generator Actuation Due to System Auxiliary Transformer 142-2 Relay Actuation and Loss of Off-site Power (LOOP)
type: Subject
page: https://kanterella.com/05000454/LER-2D2014-2D003-2C_Regarding_Diesel_Generator_Actuation_Due_to_System_Auxiliary_Transformer_142-2D2_Relay_Actuation_and_Loss_of_Off-2Dsite_Power_-28LOOP-29
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000454/LER-2014-003, Regarding Diesel Generator Actuation Due to System Auxiliary Transformer 142-2 Relay Actuation and Loss of Off-site Power (LOOP)

05000373/LER-2014-001, Regarding Secondary Containment Inoperable Due to Interlock Doors Open
type: Subject
page: https://kanterella.com/05000373/LER-2D2014-2D001-2C_Regarding_Secondary_Containment_Inoperable_Due_to_Interlock_Doors_Open
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000373/LER-2014-001, Regarding Secondary Containment Inoperable Due to Interlock Doors Open

05000259/LER-2013-006-02, Regarding B Standby Liquid Control Pump Inoperable for Longer than Allowed by the Technical Specifications
type: Subject
page: https://kanterella.com/05000259/LER-2D2013-2D006-2D02-2C_Regarding_B_Standby_Liquid_Control_Pump_Inoperable_for_Longer_than_Allowed_by_the_Technical_Specifications
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000259/LER-2013-006-02, Regarding B Standby Liquid Control Pump Inoperable for Longer than Allowed by the Technical Specifications

05000397/LER-2014-001, Regarding Secondary Containment Pressure Exceeded
type: Subject
page: https://kanterella.com/05000397/LER-2D2014-2D001-2C_Regarding_Secondary_Containment_Pressure_Exceeded
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-2014-001, Regarding Secondary Containment Pressure Exceeded

05000424/LER-2013-001, Unit 1, Regarding Failure to Comply with Technical Specification LCO 3.8.4
type: Subject
page: https://kanterella.com/05000424/LER-2D2013-2D001-2C_Unit_1-2C_Regarding_Failure_to_Comply_with_Technical_Specification_LCO_3.8.4
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000424/LER-2013-001, Unit 1, Regarding Failure to Comply with Technical Specification LCO 3.8.4

05000397/LER-2013-002, Main Control Room Cooler Failed Surveillance
type: Subject
page: https://kanterella.com/05000397/LER-2D2013-2D002-2C_Main_Control_Room_Cooler_Failed_Surveillance
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000397/LER-2013-002, Main Control Room Cooler Failed Surveillance

05000296/LER-2013-001, Regarding Inoperable Emergency Diesel Generators Due to Failed or Degraded Electric Generator Casing Fan Bearings
type: Subject
page: https://kanterella.com/05000296/LER-2D2013-2D001-2C_Regarding_Inoperable_Emergency_Diesel_Generators_Due_to_Failed_or_Degraded_Electric_Generator_Casing_Fan_Bearings
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000296/LER-2013-001, Regarding Inoperable Emergency Diesel Generators Due to Failed or Degraded Electric Generator Casing Fan Bearings

05000259/LER-2012-010, Re Browns Ferry, Unit 1 Primary Containment Isolation Valve Inoperable for Longer than Allowed by the Technical Specifications
type: Subject
page: https://kanterella.com/05000259/LER-2D2012-2D010-2C_Re_Browns_Ferry-2C_Unit_1_Primary_Containment_Isolation_Valve_Inoperable_for_Longer_than_Allowed_by_the_Technical_Specifications
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000259/LER-2012-010, Re Browns Ferry, Unit 1 Primary Containment Isolation Valve Inoperable for Longer than Allowed by the Technical Specifications

05000305/LER-2012-001, Regarding Pressurizer PORV and Reactor Coolant System Vent Valves Appendix R Spurious Operation Concerns
type: Subject
page: https://kanterella.com/05000305/LER-2D2012-2D001-2C_Regarding_Pressurizer_PORV_and_Reactor_Coolant_System_Vent_Valves_Appendix_R_Spurious_Operation_Concerns
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000305/LER-2012-001, Regarding Pressurizer PORV and Reactor Coolant System Vent Valves Appendix R Spurious Operation Concerns

05000259/LER-2011-008-01, Regarding High Vibrations on High Pressure Coolant Injection Booster Pump Thrust Bearings
type: Subject
page: https://kanterella.com/05000259/LER-2D2011-2D008-2D01-2C_Regarding_High_Vibrations_on_High_Pressure_Coolant_Injection_Booster_Pump_Thrust_Bearings
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000259/LER-2011-008-01, Regarding High Vibrations on High Pressure Coolant Injection Booster Pump Thrust Bearings

05000366/LER-2011-002, Regarding Corrosion Induced Bonding Results in Setpoint Drift for Multiple Safety Relief Valves
type: Subject
page: https://kanterella.com/05000366/LER-2D2011-2D002-2C_Regarding_Corrosion_Induced_Bonding_Results_in_Setpoint_Drift_for_Multiple_Safety_Relief_Valves
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000366/LER-2011-002, Regarding Corrosion Induced Bonding Results in Setpoint Drift for Multiple Safety Relief Valves

05000425/LER-2010-002, Unit 2 Regarding High Head Safety Injection Rendered Inoperable Due to an Inadequate Review of Scheduled Work
type: Subject
page: https://kanterella.com/05000425/LER-2D2010-2D002-2C_Unit_2_Regarding_High_Head_Safety_Injection_Rendered_Inoperable_Due_to_an_Inadequate_Review_of_Scheduled_Work
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000425/LER-2010-002, Unit 2 Regarding High Head Safety Injection Rendered Inoperable Due to an Inadequate Review of Scheduled Work

05000457/LER-2010-002, Re Containment Spray Pump Suction Valve Failed to Close Resulting in an Unanalyzed Plant Condition Due to Procedure Error
type: Subject
page: https://kanterella.com/05000457/LER-2D2010-2D002-2C_Re_Containment_Spray_Pump_Suction_Valve_Failed_to_Close_Resulting_in_an_Unanalyzed_Plant_Condition_Due_to_Procedure_Error
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000457/LER-2010-002, Re Containment Spray Pump Suction Valve Failed to Close Resulting in an Unanalyzed Plant Condition Due to Procedure Error

05000425/LER-2010-001, Regarding Closure of RHR Injection Valve in Mode 1
type: Subject
page: https://kanterella.com/05000425/LER-2D2010-2D001-2C_Regarding_Closure_of_RHR_Injection_Valve_in_Mode_1
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000425/LER-2010-001, Regarding Closure of RHR Injection Valve in Mode 1

05000374/LER-2009-002, Regarding Completed Plant Shutdown Due to Unidentified Leakage in Excess of Technical Specification Limit
type: Subject
page: https://kanterella.com/05000374/LER-2D2009-2D002-2C_Regarding_Completed_Plant_Shutdown_Due_to_Unidentified_Leakage_in_Excess_of_Technical_Specification_Limit
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000374/LER-2009-002, Regarding Completed Plant Shutdown Due to Unidentified Leakage in Excess of Technical Specification Limit

05000259/LER-2009-006, Regarding Inoperable High Pressure Coolant Injection Pump Due to Emergency Core Cooling System Inverter Failure
type: Subject
page: https://kanterella.com/05000259/LER-2D2009-2D006-2C_Regarding_Inoperable_High_Pressure_Coolant_Injection_Pump_Due_to_Emergency_Core_Cooling_System_Inverter_Failure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000259/LER-2009-006, Regarding Inoperable High Pressure Coolant Injection Pump Due to Emergency Core Cooling System Inverter Failure

05000366/LER-2009-002, Primary Containment Allowable Bypass Leakage Rate Exceeded Due to Failure of Feedwater Check Valve(S)
type: Subject
page: https://kanterella.com/05000366/LER-2D2009-2D002-2C_Primary_Containment_Allowable_Bypass_Leakage_Rate_Exceeded_Due_to_Failure_of_Feedwater_Check_Valve-28S-29
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000366/LER-2009-002, Primary Containment Allowable Bypass Leakage Rate Exceeded Due to Failure of Feedwater Check Valve(S)

05000366/LER-2009-001, Regarding Safety Relief Valves Allowable Test Range Exceeded Due to Setpoint Drift
type: Subject
page: https://kanterella.com/05000366/LER-2D2009-2D001-2C_Regarding_Safety_Relief_Valves_Allowable_Test_Range_Exceeded_Due_to_Setpoint_Drift
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000366/LER-2009-001, Regarding Safety Relief Valves Allowable Test Range Exceeded Due to Setpoint Drift

05000302/LER-2008-003, Manual Reactor Trip Due to Main Feedwater System Oscillations Caused by an Inconsistent Procedure
type: Subject
page: https://kanterella.com/05000302/LER-2D2008-2D003-2C_Manual_Reactor_Trip_Due_to_Main_Feedwater_System_Oscillations_Caused_by_an_Inconsistent_Procedure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000302/LER-2008-003, Manual Reactor Trip Due to Main Feedwater System Oscillations Caused by an Inconsistent Procedure

05000298/LER-2007-006, Procedural Guidance Leads to Rendering Second Diesel Generator Inoperable
type: Subject
page: https://kanterella.com/05000298/LER-2D2007-2D006-2C_Procedural_Guidance_Leads_to_Rendering_Second_Diesel_Generator_Inoperable
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000298/LER-2007-006, Procedural Guidance Leads to Rendering Second Diesel Generator Inoperable

05000425/LER-2002-007-02, 2 for Vogtle Regarding Unit 2 Main Generator Tripped Resulting in an Automatic Reactor Trip
type: Subject
page: https://kanterella.com/05000425/LER-2D2002-2D007-2D02-2C_2_for_Vogtle_Regarding_Unit_2_Main_Generator_Tripped_Resulting_in_an_Automatic_Reactor_Trip
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000425/LER-2002-007-02, 2 for Vogtle Regarding Unit 2 Main Generator Tripped Resulting in an Automatic Reactor Trip

05000529/LER-2005-006, Regarding Condition Prohibited by Technical Specifications Due to Partial Fouling of B Diesel Generator (EDG) Fuel Oil Strainer
type: Subject
page: https://kanterella.com/05000529/LER-2D2005-2D006-2C_Regarding_Condition_Prohibited_by_Technical_Specifications_Due_to_Partial_Fouling_of_B_Diesel_Generator_-28EDG-29_Fuel_Oil_Strainer
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000529/LER-2005-006, Regarding Condition Prohibited by Technical Specifications Due to Partial Fouling of B Diesel Generator (EDG) Fuel Oil Strainer

05000529/LER-2007-001, Re Completion of a Shutdown Required by Technical Specification 3.5.3, Condition C
type: Subject
page: https://kanterella.com/05000529/LER-2D2007-2D001-2C_Re_Completion_of_a_Shutdown_Required_by_Technical_Specification_3.5.3-2C_Condition_C
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000529/LER-2007-001, Re Completion of a Shutdown Required by Technical Specification 3.5.3, Condition C

05000321/LER-2006-003, Regarding Personnel Error Results in Failure to Report Condition Prohibited by Technical Specifications
type: Subject
page: https://kanterella.com/05000321/LER-2D2006-2D003-2C_Regarding_Personnel_Error_Results_in_Failure_to_Report_Condition_Prohibited_by_Technical_Specifications
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000321/LER-2006-003, Regarding Personnel Error Results in Failure to Report Condition Prohibited by Technical Specifications

05000424/LER-2006-002, Unit 1 Re Three Technical Specification (TS) Instruments Were Determined to Be in a Condition Which Was Prohibited by TS
type: Subject
page: https://kanterella.com/05000424/LER-2D2006-2D002-2C_Unit_1_Re_Three_Technical_Specification_-28TS-29_Instruments_Were_Determined_to_Be_in_a_Condition_Which_Was_Prohibited_by_TS
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000424/LER-2006-002, Unit 1 Re Three Technical Specification (TS) Instruments Were Determined to Be in a Condition Which Was Prohibited by TS

ML062640550
type: Subject
page: https://kanterella.com/ML062640550
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: ML062640550

05000293/LER-2006-002, Re Small Quantities of Unaccountable Licensed Material
type: Subject
page: https://kanterella.com/05000293/LER-2D2006-2D002-2C_Re_Small_Quantities_of_Unaccountable_Licensed_Material
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000293/LER-2006-002, Re Small Quantities of Unaccountable Licensed Material

05000483/LER-2006-003, Re Unexpected Inoperability of the Emergency Exhaust System Due to Inoperable Pressure Boundary
type: Subject
page: https://kanterella.com/05000483/LER-2D2006-2D003-2C_Re_Unexpected_Inoperability_of_the_Emergency_Exhaust_System_Due_to_Inoperable_Pressure_Boundary
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000483/LER-2006-003, Re Unexpected Inoperability of the Emergency Exhaust System Due to Inoperable Pressure Boundary

05000271/LER-2005-002, Re Primary Containment Leak Risks Testing Program Second Barrier Isolation Valve Found Miss-Positioned
type: Subject
page: https://kanterella.com/05000271/LER-2D2005-2D002-2C_Re_Primary_Containment_Leak_Risks_Testing_Program_Second_Barrier_Isolation_Valve_Found_Miss-2DPositioned
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000271/LER-2005-002, Re Primary Containment Leak Risks Testing Program Second Barrier Isolation Valve Found Miss-Positioned

05000327/LER-1950-001, Re Automatic Reactor Trip Following Loss of Turbine Auto Stop Oil (ASO) Pressure
type: Subject
page: https://kanterella.com/05000327/LER-2D1950-2D001-2C_Re_Automatic_Reactor_Trip_Following_Loss_of_Turbine_Auto_Stop_Oil_-28ASO-29_Pressure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000327/LER-1950-001, Re Automatic Reactor Trip Following Loss of Turbine Auto Stop Oil (ASO) Pressure

05000413/LER-2004-004, Regarding Spurious Moisture Separator Reheater High Level Actuation Resulting in an Automatic Turbine Trip and Reactor Trip
type: Subject
page: https://kanterella.com/05000413/LER-2D2004-2D004-2C_Regarding_Spurious_Moisture_Separator_Reheater_High_Level_Actuation_Resulting_in_an_Automatic_Turbine_Trip_and_Reactor_Trip
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000413/LER-2004-004, Regarding Spurious Moisture Separator Reheater High Level Actuation Resulting in an Automatic Turbine Trip and Reactor Trip

05000219/LER-2004-007, Regarding Automatic Containment Isolation Bypassed During Reactor Startup Due to an Inadequate Procedure
type: Subject
page: https://kanterella.com/05000219/LER-2D2004-2D007-2C_Regarding_Automatic_Containment_Isolation_Bypassed_During_Reactor_Startup_Due_to_an_Inadequate_Procedure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000219/LER-2004-007, Regarding Automatic Containment Isolation Bypassed During Reactor Startup Due to an Inadequate Procedure

05000269/LER-2004-004, Re Improper Overloads Installed on Control Room Ventilation Filter Train
type: Subject
page: https://kanterella.com/05000269/LER-2D2004-2D004-2C_Re_Improper_Overloads_Installed_on_Control_Room_Ventilation_Filter_Train
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000269/LER-2004-004, Re Improper Overloads Installed on Control Room Ventilation Filter Train

05000219/LER-2004-005, Regarding Main Steam Isolation Valve Failure to Close During Partial Valve Closure Surveillance Due to Mechanical Binding
type: Subject
page: https://kanterella.com/05000219/LER-2D2004-2D005-2C_Regarding_Main_Steam_Isolation_Valve_Failure_to_Close_During_Partial_Valve_Closure_Surveillance_Due_to_Mechanical_Binding
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000219/LER-2004-005, Regarding Main Steam Isolation Valve Failure to Close During Partial Valve Closure Surveillance Due to Mechanical Binding

05000425/LER-2003-001, Regarding Technical Specification Required Shutdown Not Performed Following Issuance of Notice of Enforcement Discretion
type: Subject
page: https://kanterella.com/05000425/LER-2D2003-2D001-2C_Regarding_Technical_Specification_Required_Shutdown_Not_Performed_Following_Issuance_of_Notice_of_Enforcement_Discretion
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000425/LER-2003-001, Regarding Technical Specification Required Shutdown Not Performed Following Issuance of Notice of Enforcement Discretion

05000275/LER-2003-007-01, Re Technical Specification 3.8.4 Violation Due to Common Mode Battery Charger Failures
type: Subject
page: https://kanterella.com/05000275/LER-2D2003-2D007-2D01-2C_Re_Technical_Specification_3.8.4_Violation_Due_to_Common_Mode_Battery_Charger_Failures
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000275/LER-2003-007-01, Re Technical Specification 3.8.4 Violation Due to Common Mode Battery Charger Failures

05000219/LER-2003-004, Actuation of Reactor Protection System Due to Instrument Malfunction
type: Subject
page: https://kanterella.com/05000219/LER-2D2003-2D004-2C_Actuation_of_Reactor_Protection_System_Due_to_Instrument_Malfunction
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000219/LER-2003-004, Actuation of Reactor Protection System Due to Instrument Malfunction

05000410/LER-2003-001, Regarding Oscillation Power Range Scram Due to a Power and Flow Perturbations Resulting from a Power Supply Failure
type: Subject
page: https://kanterella.com/05000410/LER-2D2003-2D001-2C_Regarding_Oscillation_Power_Range_Scram_Due_to_a_Power_and_Flow_Perturbations_Resulting_from_a_Power_Supply_Failure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000410/LER-2003-001, Regarding Oscillation Power Range Scram Due to a Power and Flow Perturbations Resulting from a Power Supply Failure

05000498/LER-2003-004, Regarding Deviation from a Licensed Condition Under 10CFR50.54(x)
type: Subject
page: https://kanterella.com/05000498/LER-2D2003-2D004-2C_Regarding_Deviation_from_a_Licensed_Condition_Under_10CFR50.54-28x-29
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000498/LER-2003-004, Regarding Deviation from a Licensed Condition Under 10CFR50.54(x)

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
NRC form: NRC Form 368A
wiki page sort key: 05000301/LER-2003-005, Re Manual Reactor Trip and Manual Safety Injection Due to Pressurizer Low Level

05000305/LER-2001-002-03, Re Non-Rated Fire Barrier Separating Redundant Appendix R Safe Shutdown Capabilities
type: Subject
page: https://kanterella.com/05000305/LER-2D2001-2D002-2D03-2C_Re_Non-2DRated_Fire_Barrier_Separating_Redundant_Appendix_R_Safe_Shutdown_Capabilities
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000305/LER-2001-002-03, Re Non-Rated Fire Barrier Separating Redundant Appendix R Safe Shutdown Capabilities

05000341/LER-2003-001, Loss of High Pressure Coolant Injection Safety Function Due to Closure of Steam Supply Valve
type: Subject
page: https://kanterella.com/05000341/LER-2D2003-2D001-2C_Loss_of_High_Pressure_Coolant_Injection_Safety_Function_Due_to_Closure_of_Steam_Supply_Valve
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000341/LER-2003-001, Loss of High Pressure Coolant Injection Safety Function Due to Closure of Steam Supply Valve

05000219/LER-2003-002, For Oyster Creek Unit 1 Regarding Completion of Reactor Shutdown Required by Tech Specs Due to a Cable Fault
type: Subject
page: https://kanterella.com/05000219/LER-2D2003-2D002-2C_For_Oyster_Creek_Unit_1_Regarding_Completion_of_Reactor_Shutdown_Required_by_Tech_Specs_Due_to_a_Cable_Fault
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000219/LER-2003-002, For Oyster Creek Unit 1 Regarding Completion of Reactor Shutdown Required by Tech Specs Due to a Cable Fault

05000277/LER-2003-001, Regarding Outboard Main Steam Isolation Valve Instrument All Line Failure Results in Scram on Reactor High Pressure
type: Subject
page: https://kanterella.com/05000277/LER-2D2003-2D001-2C_Regarding_Outboard_Main_Steam_Isolation_Valve_Instrument_All_Line_Failure_Results_in_Scram_on_Reactor_High_Pressure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000277/LER-2003-001, Regarding Outboard Main Steam Isolation Valve Instrument All Line Failure Results in Scram on Reactor High Pressure

05000220/LER-2002-002, Re Loss of One Control Rod Drive Pump Train Due to Circuit Breaker Failure
type: Subject
page: https://kanterella.com/05000220/LER-2D2002-2D002-2C_Re_Loss_of_One_Control_Rod_Drive_Pump_Train_Due_to_Circuit_Breaker_Failure
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000220/LER-2002-002, Re Loss of One Control Rod Drive Pump Train Due to Circuit Breaker Failure

LER-2002-003, For Arkansas Unit 1 Reactor Coolant System Pressure Boundary Leakage from a Crack in a Control Rod Drive Mechanism Nozzle Reactor Vessel Head Penetration Weld Due to Previous Weld Repair Method
type: Subject
label: 05000313/LER-2002-003, For Arkansas Unit 1 Reactor Coolant System Pressure Boundary Leakage from a Crack in a Control Rod Drive Mechanism Nozzle Reactor Vessel Head Penetration Weld Due to Previous Weld Repair Method
page: https://kanterella.com/05000313/LER-2D2002-2D003-2C_For_Arkansas_Unit_1_Reactor_Coolant_System_Pressure_Boundary_Leakage_from_a_Crack_in_a_Control_Rod_Drive_Mechanism_Nozzle_Reactor_Vessel_Head_Penetr…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000313/LER-2002-003, For Arkansas Unit 1 Reactor Coolant System Pressure Boundary Leakage from a Crack in a Control Rod Drive Mechanism Nozzle Reactor Vessel Head Penetration Weld Due to Previous Weld Repair Method

05000395/LER-2002-004, Automatic Reactor Trip Subsequent to Feedwater Pump Trip on June 17, 2002
type: Subject
page: https://kanterella.com/05000395/LER-2D2002-2D004-2C_Automatic_Reactor_Trip_Subsequent_to_Feedwater_Pump_Trip_on_June_17-2C_2002
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000395/LER-2002-004, Automatic Reactor Trip Subsequent to Feedwater Pump Trip on June 17, 2002

05000286/LER-2002-001, Operation in Condition Prohibited by Technical Specifications Due to Inoperable Service Water Pipe Caused by Leak Exceeding AOT
type: Subject
page: https://kanterella.com/05000286/LER-2D2002-2D001-2C_Operation_in_Condition_Prohibited_by_Technical_Specifications_Due_to_Inoperable_Service_Water_Pipe_Caused_by_Leak_Exceeding_AOT
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000286/LER-2002-001, Operation in Condition Prohibited by Technical Specifications Due to Inoperable Service Water Pipe Caused by Leak Exceeding AOT

05000368/LER-2002-001, Reactor Coolant System Pressure Boundary Leakage Due to Primary Water Stress Corrosion Cracking of Pressurizer Heater Sleeves
type: Subject
page: https://kanterella.com/05000368/LER-2D2002-2D001-2C_Reactor_Coolant_System_Pressure_Boundary_Leakage_Due_to_Primary_Water_Stress_Corrosion_Cracking_of_Pressurizer_Heater_Sleeves
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000368/LER-2002-001, Reactor Coolant System Pressure Boundary Leakage Due to Primary Water Stress Corrosion Cracking of Pressurizer Heater Sleeves

05000388/LER-2002-002, Re Loss of Control Structure Chiller Safety Function When 4.16 Kv Breakers Found Racked-Out
type: Subject
page: https://kanterella.com/05000388/LER-2D2002-2D002-2C_Re_Loss_of_Control_Structure_Chiller_Safety_Function_When_4.16_Kv_Breakers_Found_Racked-2DOut
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000388/LER-2002-002, Re Loss of Control Structure Chiller Safety Function When 4.16 Kv Breakers Found Racked-Out

05000247/LER-2000-001, Unit, 2 - Manual Reactor Trip Following Steam Generator Tube Rupture Dtd 03/17/2000
type: Subject
page: https://kanterella.com/05000247/LER-2D2000-2D001-2C_Unit-2C_2_-2D_Manual_Reactor_Trip_Following_Steam_Generator_Tube_Rupture_Dtd_03/17/2000
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000247/LER-2000-001, Unit, 2 - Manual Reactor Trip Following Steam Generator Tube Rupture Dtd 03/17/2000

LER-1998-003-02, :on 980526,discovered Inadequate App R Fire Barriers & Unsealed Fire Barrier Penetrations.Caused by Lack of Adequate Separation of Safe Shutdown Equipment.Firewatch Has Been Established as Compensatory Measure
type: Subject
label: 05000306/LER-1998-003-02, :on 980526,discovered Inadequate App R Fire Barriers & Unsealed Fire Barrier Penetrations.Caused by Lack of Adequate Separation of Safe Shutdown Equipment.Firewatch Has Been Established as Compensatory Measure
page: https://kanterella.com/05000306/LER-2D1998-2D003-2D02-2C_-3Aon_980526-2Cdiscovered_Inadequate_App_R_Fire_Barriers_-26_Unsealed_Fire_Barrier_Penetrations.Caused_by_Lack_of_Adequate_Separation_of_Safe_S…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000306/LER-1998-003-02, :on 980526,discovered Inadequate App R Fire Barriers & Unsealed Fire Barrier Penetrations.Caused by Lack of Adequate Separation of Safe Shutdown Equipment.Firewatch Has Been Established as Compensatory Measure

05000348/LER-2022-001, Outdated Relay Settings Resulted in an Automatic Reactor Trip After a Floor Tile Was Dropped in High Voltage Switch House
type: Subject
page: https://kanterella.com/05000348/LER-2D2022-2D001-2C_Outdated_Relay_Settings_Resulted_in_an_Automatic_Reactor_Trip_After_a_Floor_Tile_Was_Dropped_in_High_Voltage_Switch_House
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000348/LER-2022-001, Outdated Relay Settings Resulted in an Automatic Reactor Trip After a Floor Tile Was Dropped in High Voltage Switch House

LER-1997-024, :on 970731,feedwater Valves Did Not Meet Requirements for Main Steam Line or Feedwater Line Break Event Mitigation.Caused by Inadequate Design & Calculation Errors.Fsar Will Be Updated by 971130
type: Subject
label: 05000302/LER-1997-024, :on 970731,feedwater Valves Did Not Meet Requirements for Main Steam Line or Feedwater Line Break Event Mitigation.Caused by Inadequate Design & Calculation Errors.Fsar Will Be Updated by 971130
page: https://kanterella.com/05000302/LER-2D1997-2D024-2C_-3Aon_970731-2Cfeedwater_Valves_Did_Not_Meet_Requirements_for_Main_Steam_Line_or_Feedwater_Line_Break_Event_Mitigation.Caused_by_Inadequate_Design_-…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000302/LER-1997-024, :on 970731,feedwater Valves Did Not Meet Requirements for Main Steam Line or Feedwater Line Break Event Mitigation.Caused by Inadequate Design & Calculation Errors.Fsar Will Be Updated by 971130

LER-1997-012, :on 970404,programmatic Breakdown of Overtime Program Occurred.Caused by Lack of Mgt Oversight in Administering & Implementing Plants Working Hour Policy. Ltr Issued Reemphasizing Working Hour Policy
type: Subject
label: 05000382/LER-1997-012, :on 970404,programmatic Breakdown of Overtime Program Occurred.Caused by Lack of Mgt Oversight in Administering & Implementing Plants Working Hour Policy. Ltr Issued Reemphasizing Working Hour Policy
page: https://kanterella.com/05000382/LER-2D1997-2D012-2C_-3Aon_970404-2Cprogrammatic_Breakdown_of_Overtime_Program_Occurred.Caused_by_Lack_of_Mgt_Oversight_in_Administering_-26_Implementing_Plants_Working_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000382/LER-1997-012, :on 970404,programmatic Breakdown of Overtime Program Occurred.Caused by Lack of Mgt Oversight in Administering & Implementing Plants Working Hour Policy. Ltr Issued Reemphasizing Working Hour Policy

05000302/LER-1995-023, :on 951027,engineering Personnel Determined Bldg Spray Flow Valves Used in Various Engineering Calculations Inconsistent.Caused by Design Analysis Deficiency.Problem Rept Issued
type: Subject
page: https://kanterella.com/05000302/LER-2D1995-2D023-2C_-3Aon_951027-2Cengineering_Personnel_Determined_Bldg_Spray_Flow_Valves_Used_in_Various_Engineering_Calculations_Inconsistent.Caused_by_Design_Analys…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000302/LER-1995-023, :on 951027,engineering Personnel Determined Bldg Spray Flow Valves Used in Various Engineering Calculations Inconsistent.Caused by Design Analysis Deficiency.Problem Rept Issued

05000318/LER-1996-001-01, :on 960227,breakers 552-41,552-21 & 552-61 Tripped Open in Plant Switchyard.Caused by Failure of Auxiliary Relay Card in Breaker 552-41.Failed Relay Card Replaced
type: Subject
page: https://kanterella.com/05000318/LER-2D1996-2D001-2D01-2C_-3Aon_960227-2Cbreakers_552-2D41-2C552-2D21_-26_552-2D61_Tripped_Open_in_Plant_Switchyard.Caused_by_Failure_of_Auxiliary_Relay_Card_in_Breaker_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000318/LER-1996-001-01, :on 960227,breakers 552-41,552-21 & 552-61 Tripped Open in Plant Switchyard.Caused by Failure of Auxiliary Relay Card in Breaker 552-41.Failed Relay Card Replaced

LER-1994-008, :on 940517,determined That Testing Had Not Been Performed at Required Surveillance Frequency for Reactor High Pressure Scram Pressure Switch.Caused by Inadequate Tracking.Appropriate Half Scram Inserted
type: Subject
label: 05000331/LER-1994-008, :on 940517,determined That Testing Had Not Been Performed at Required Surveillance Frequency for Reactor High Pressure Scram Pressure Switch.Caused by Inadequate Tracking.Appropriate Half Scram Inserted
page: https://kanterella.com/05000331/LER-2D1994-2D008-2C_-3Aon_940517-2Cdetermined_That_Testing_Had_Not_Been_Performed_at_Required_Surveillance_Frequency_for_Reactor_High_Pressure_Scram_Pressure_Switch.Cau…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 368A
wiki page sort key: 05000331/LER-1994-008, :on 940517,determined That Testing Had Not Been Performed at Required Surveillance Frequency for Reactor High Pressure Scram Pressure Switch.Caused by Inadequate Tracking.Appropriate Half Scram Inserted

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