NRC Form 358A
type: Ontology
creation date: 2025-12-05T20:59:22-05:00
imports: http://semantic-mediawiki.org/swivt/1.0

NRC Form 358A
type: Subject
page: https://kanterella.com/NRC_Form_358A
wiki namespace: 0
wiki page content language: en
wiki page sort key: NRC Form 358A

05000327/LER-1985-036-01, :on 850825,26,28 & 0913,hourly Fire Watch Not Performed within 1 H.Caused by Improper Shift Relief or Inaccessibility to Areas.Fire Watches Reestablished as Soon as Practical
type: Subject
page: https://kanterella.com/05000327/LER-2D1985-2D036-2D01-2C_-3Aon_850825-2C26-2C28_-26_0913-2Chourly_Fire_Watch_Not_Performed_within_1_H.Caused_by_Improper_Shift_Relief_or_Inaccessibility_to_Areas.Fire_W…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000327/LER-1985-036-01, :on 850825,26,28 & 0913,hourly Fire Watch Not Performed within 1 H.Caused by Improper Shift Relief or Inaccessibility to Areas.Fire Watches Reestablished as Soon as Practical

05000336/LER-1995-045, :on 951214,plant Shutdown Initiated Due to Indeterminate Structural Integrity of Charging Valve 2-CH-435.Repaired Valve
type: Subject
page: https://kanterella.com/05000336/LER-2D1995-2D045-2C_-3Aon_951214-2Cplant_Shutdown_Initiated_Due_to_Indeterminate_Structural_Integrity_of_Charging_Valve_2-2DCH-2D435.Repaired_Valve
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000336/LER-1995-045, :on 951214,plant Shutdown Initiated Due to Indeterminate Structural Integrity of Charging Valve 2-CH-435.Repaired Valve

LER-1988-013-02, :on 880603,emergency Bus 1A-SA Deenergized Resulting in Automatic Start of Emergency Diesel Generator 1A-SA.Cause Undetermined.Failure of Battery Room Ventilation Damper Traced to Sticking Limit Switch
type: Subject
label: 05000400/LER-1988-013-02, :on 880603,emergency Bus 1A-SA Deenergized Resulting in Automatic Start of Emergency Diesel Generator 1A-SA.Cause Undetermined.Failure of Battery Room Ventilation Damper Traced to Sticking Limit Switch
page: https://kanterella.com/05000400/LER-2D1988-2D013-2D02-2C_-3Aon_880603-2Cemergency_Bus_1A-2DSA_Deenergized_Resulting_in_Automatic_Start_of_Emergency_Diesel_Generator_1A-2DSA.Cause_Undetermined.Failure_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1988-013-02, :on 880603,emergency Bus 1A-SA Deenergized Resulting in Automatic Start of Emergency Diesel Generator 1A-SA.Cause Undetermined.Failure of Battery Room Ventilation Damper Traced to Sticking Limit Switch

Turbine Trip.Caused by Personnel Error.Operator Training Conducted Re Fuse Labeling Conventions
type: Subject
label: 05000400/LER-1987-042, :on 870709,wrong Fuses Pulled During Process of Placing Clearance OP-87-1290 Resulting in Automatic Reactor/ Turbine Trip.Caused by Personnel Error.Operator Training Conducted Re Fuse Labeling Conventions
page: https://kanterella.com/05000400/LER-2D1987-2D042-2C_-3Aon_870709-2Cwrong_Fuses_Pulled_During_Process_of_Placing_Clearance_OP-2D87-2D1290_Resulting_in_Automatic_Reactor/_Turbine_Trip.Caused_by_Personne…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1987-042, :on 870709,wrong Fuses Pulled During Process of Placing Clearance OP-87-1290 Resulting in Automatic Reactor/ Turbine Trip.Caused by Personnel Error.Operator Training Conducted Re Fuse Labeling Conventions

LER-1990-018, :on 900823,loss of Component Cooling Water Inventory Occurred.Caused by Lifted Reactor Coolant Drain Tank HX Valve Caused by Incorrect Relief Valve Setpoint. Inlet Isolation Valve Administratively Closed
type: Subject
label: 05000400/LER-1990-018, :on 900823,loss of Component Cooling Water Inventory Occurred.Caused by Lifted Reactor Coolant Drain Tank HX Valve Caused by Incorrect Relief Valve Setpoint. Inlet Isolation Valve Administratively Closed
page: https://kanterella.com/05000400/LER-2D1990-2D018-2C_-3Aon_900823-2Closs_of_Component_Cooling_Water_Inventory_Occurred.Caused_by_Lifted_Reactor_Coolant_Drain_Tank_HX_Valve_Caused_by_Incorrect_Relief_Va…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1990-018, :on 900823,loss of Component Cooling Water Inventory Occurred.Caused by Lifted Reactor Coolant Drain Tank HX Valve Caused by Incorrect Relief Valve Setpoint. Inlet Isolation Valve Administratively Closed

LER-1989-004, :on 890207,loss of All Three Circulating Water Pumps Resulted in Loss of All Flow to Main Condenser, Causing Reactor Trip.Caused by Air Entering Circulating Water Pump Seal Water Sys.Components Repaired
type: Subject
label: 05000400/LER-1989-004, :on 890207,loss of All Three Circulating Water Pumps Resulted in Loss of All Flow to Main Condenser, Causing Reactor Trip.Caused by Air Entering Circulating Water Pump Seal Water Sys.Components Repaired
page: https://kanterella.com/05000400/LER-2D1989-2D004-2C_-3Aon_890207-2Closs_of_All_Three_Circulating_Water_Pumps_Resulted_in_Loss_of_All_Flow_to_Main_Condenser-2C_Causing_Reactor_Trip.Caused_by_Air_Enteri…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1989-004, :on 890207,loss of All Three Circulating Water Pumps Resulted in Loss of All Flow to Main Condenser, Causing Reactor Trip.Caused by Air Entering Circulating Water Pump Seal Water Sys.Components Repaired

LER-1988-011-01, :on 880511,Westinghouse Notified Plant of Unanalyzed Condition Re Inadvertent Actuation of Low Temp Overpressure Protection Sys.Automatic Actuation Function Disabled & Permanent Mod Under Consideration
type: Subject
label: 05000400/LER-1988-011-01, :on 880511,Westinghouse Notified Plant of Unanalyzed Condition Re Inadvertent Actuation of Low Temp Overpressure Protection Sys.Automatic Actuation Function Disabled & Permanent Mod Under Consideration
page: https://kanterella.com/05000400/LER-2D1988-2D011-2D01-2C_-3Aon_880511-2CWestinghouse_Notified_Plant_of_Unanalyzed_Condition_Re_Inadvertent_Actuation_of_Low_Temp_Overpressure_Protection_Sys.Automatic_A…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1988-011-01, :on 880511,Westinghouse Notified Plant of Unanalyzed Condition Re Inadvertent Actuation of Low Temp Overpressure Protection Sys.Automatic Actuation Function Disabled & Permanent Mod Under Consideration

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 358A
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

Engine Barring Device Not Rotating Engine as Required Using Plant Svc Air. Caused by Low Plant Svc Air Pressure.Mod Installed Attaching Engine Barring Device to Starting Air Tank Air
type: Subject
label: 05000400/LER-1987-033, :on 870607,experienced Trouble W/Engine Barring Device Not Rotating Engine as Required Using Plant Svc Air. Caused by Low Plant Svc Air Pressure.Mod Installed Attaching Engine Barring Device to Starting Air Tank Air
page: https://kanterella.com/05000400/LER-2D1987-2D033-2C_-3Aon_870607-2Cexperienced_Trouble_W/Engine_Barring_Device_Not_Rotating_Engine_as_Required_Using_Plant_Svc_Air._Caused_by_Low_Plant_Svc_Air_Pressure…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1987-033, :on 870607,experienced Trouble W/Engine Barring Device Not Rotating Engine as Required Using Plant Svc Air. Caused by Low Plant Svc Air Pressure.Mod Installed Attaching Engine Barring Device to Starting Air Tank Air

Overcurrent Relay. Overcurrent Relay Replaced & Emergency Safeguards Sequencer Sys Test Procedure Revised
type: Subject
label: 05000400/LER-1988-008, :on 880217,emergency Svc Water Pump Started Then Tripped.Caused by Problem W/Overcurrent Relay. Overcurrent Relay Replaced & Emergency Safeguards Sequencer Sys Test Procedure Revised
page: https://kanterella.com/05000400/LER-2D1988-2D008-2C_-3Aon_880217-2Cemergency_Svc_Water_Pump_Started_Then_Tripped.Caused_by_Problem_W/Overcurrent_Relay._Overcurrent_Relay_Replaced_-26_Emergency_Safegua…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1988-008, :on 880217,emergency Svc Water Pump Started Then Tripped.Caused by Problem W/Overcurrent Relay. Overcurrent Relay Replaced & Emergency Safeguards Sequencer Sys Test Procedure Revised

LER-1987-045, :on 870716,RCS Pressure Fell Below Accumulator Pressure,Initiating Partial Injection of All Three Accumulators.Caused by Reactor Operator Error.Operating Shift Disciplined & Procedure Revised
type: Subject
label: 05000400/LER-1987-045, :on 870716,RCS Pressure Fell Below Accumulator Pressure,Initiating Partial Injection of All Three Accumulators.Caused by Reactor Operator Error.Operating Shift Disciplined & Procedure Revised
page: https://kanterella.com/05000400/LER-2D1987-2D045-2C_-3Aon_870716-2CRCS_Pressure_Fell_Below_Accumulator_Pressure-2CInitiating_Partial_Injection_of_All_Three_Accumulators.Caused_by_Reactor_Operator_Erro…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1987-045, :on 870716,RCS Pressure Fell Below Accumulator Pressure,Initiating Partial Injection of All Three Accumulators.Caused by Reactor Operator Error.Operating Shift Disciplined & Procedure Revised

LER-1987-015, :on 870522,design Basis Reconstitution Revealed Potential Loss of HVAC in Inverter & Battery Rooms.Caused by Mods to Original Plant Design.Maint & Insp Procedures Implemented for Air Conditioning Units
type: Subject
label: 05000250/LER-1987-015, :on 870522,design Basis Reconstitution Revealed Potential Loss of HVAC in Inverter & Battery Rooms.Caused by Mods to Original Plant Design.Maint & Insp Procedures Implemented for Air Conditioning Units
page: https://kanterella.com/05000250/LER-2D1987-2D015-2C_-3Aon_870522-2Cdesign_Basis_Reconstitution_Revealed_Potential_Loss_of_HVAC_in_Inverter_-26_Battery_Rooms.Caused_by_Mods_to_Original_Plant_Design.Mai…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000250/LER-1987-015, :on 870522,design Basis Reconstitution Revealed Potential Loss of HVAC in Inverter & Battery Rooms.Caused by Mods to Original Plant Design.Maint & Insp Procedures Implemented for Air Conditioning Units

LER-1987-014, :on 870519,while Unit in Mode 6,determined That Design Discrepancy Existed in Containment Spray Sys.Caused by Flow Orifice in Discharge Line Not Incorporated in Field. Design Mods Will Be Implemented for Correction
type: Subject
label: 05000250/LER-1987-014, :on 870519,while Unit in Mode 6,determined That Design Discrepancy Existed in Containment Spray Sys.Caused by Flow Orifice in Discharge Line Not Incorporated in Field. Design Mods Will Be Implemented for Correction
page: https://kanterella.com/05000250/LER-2D1987-2D014-2C_-3Aon_870519-2Cwhile_Unit_in_Mode_6-2Cdetermined_That_Design_Discrepancy_Existed_in_Containment_Spray_Sys.Caused_by_Flow_Orifice_in_Discharge_Line_N…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000250/LER-1987-014, :on 870519,while Unit in Mode 6,determined That Design Discrepancy Existed in Containment Spray Sys.Caused by Flow Orifice in Discharge Line Not Incorporated in Field. Design Mods Will Be Implemented for Correction

05000250/LER-1988-027, :on 881006,mechanic Found to Be Contaminated When Exiting Containment Bldg.Specific Cause Unidentified. Addl Temporary Controls Implemented & Area Mopped
type: Subject
page: https://kanterella.com/05000250/LER-2D1988-2D027-2C_-3Aon_881006-2Cmechanic_Found_to_Be_Contaminated_When_Exiting_Containment_Bldg.Specific_Cause_Unidentified._Addl_Temporary_Controls_Implemented_-26_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000250/LER-1988-027, :on 881006,mechanic Found to Be Contaminated When Exiting Containment Bldg.Specific Cause Unidentified. Addl Temporary Controls Implemented & Area Mopped

LER-1989-009, :on 890519,design Inadequacy in App R Safe Shutdown Analysis Identified by Util Engineers.Caused by Design Inadequacy.Fire Watches Established for Unit 4 & Will Be Established for Unit 3
type: Subject
label: 05000250/LER-1989-009, :on 890519,design Inadequacy in App R Safe Shutdown Analysis Identified by Util Engineers.Caused by Design Inadequacy.Fire Watches Established for Unit 4 & Will Be Established for Unit 3
page: https://kanterella.com/05000250/LER-2D1989-2D009-2C_-3Aon_890519-2Cdesign_Inadequacy_in_App_R_Safe_Shutdown_Analysis_Identified_by_Util_Engineers.Caused_by_Design_Inadequacy.Fire_Watches_Established_f…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000250/LER-1989-009, :on 890519,design Inadequacy in App R Safe Shutdown Analysis Identified by Util Engineers.Caused by Design Inadequacy.Fire Watches Established for Unit 4 & Will Be Established for Unit 3

05000250/LER-1987-024, :on 870913,reactor Controls Manipulated by Nonlicensed Person Under Supervision of Licensed Operator. Caused by Personnel Error.Personnel Counseled
type: Subject
page: https://kanterella.com/05000250/LER-2D1987-2D024-2C_-3Aon_870913-2Creactor_Controls_Manipulated_by_Nonlicensed_Person_Under_Supervision_of_Licensed_Operator._Caused_by_Personnel_Error.Personnel_Counse…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000250/LER-1987-024, :on 870913,reactor Controls Manipulated by Nonlicensed Person Under Supervision of Licensed Operator. Caused by Personnel Error.Personnel Counseled

05000316/LER-1995-008-01, :on 950905,inadequate Procedural Guidance Resulted in Autostart of Essential SW Pump on Unexpected ESF Signal.Event Was Evaluated & Determined to Be of No Safety Significance
type: Subject
page: https://kanterella.com/05000316/LER-2D1995-2D008-2D01-2C_-3Aon_950905-2Cinadequate_Procedural_Guidance_Resulted_in_Autostart_of_Essential_SW_Pump_on_Unexpected_ESF_Signal.Event_Was_Evaluated_-26_Deter…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000316/LER-1995-008-01, :on 950905,inadequate Procedural Guidance Resulted in Autostart of Essential SW Pump on Unexpected ESF Signal.Event Was Evaluated & Determined to Be of No Safety Significance

LER-1991-005, :on 910718,emergency Diesels Declared Inoperable When Design Documents Could Not Be Located to Demonstrate Capability of EDG to Withstand Effects of Tornado.Edg Room Fans Will Be Run
type: Subject
label: 05000315/LER-1991-005, :on 910718,emergency Diesels Declared Inoperable When Design Documents Could Not Be Located to Demonstrate Capability of EDG to Withstand Effects of Tornado.Edg Room Fans Will Be Run
page: https://kanterella.com/05000315/LER-2D1991-2D005-2C_-3Aon_910718-2Cemergency_Diesels_Declared_Inoperable_When_Design_Documents_Could_Not_Be_Located_to_Demonstrate_Capability_of_EDG_to_Withstand_Effect…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000315/LER-1991-005, :on 910718,emergency Diesels Declared Inoperable When Design Documents Could Not Be Located to Demonstrate Capability of EDG to Withstand Effects of Tornado.Edg Room Fans Will Be Run

LER-1989-012, :on 890624,monthly Channel Checks Required by Tech Spec 3.3.3.6,Table 3.3-10 for Containment Water Level Instruments Not Included in Surveillance Procedure.Caused by Personnel Error.Procedure Revised on 890624
type: Subject
label: 05000316/LER-1989-012, :on 890624,monthly Channel Checks Required by Tech Spec 3.3.3.6,Table 3.3-10 for Containment Water Level Instruments Not Included in Surveillance Procedure.Caused by Personnel Error.Procedure Revised on 890624
page: https://kanterella.com/05000316/LER-2D1989-2D012-2C_-3Aon_890624-2Cmonthly_Channel_Checks_Required_by_Tech_Spec_3.3.3.6-2CTable_3.3-2D10_for_Containment_Water_Level_Instruments_Not_Included_in_Surveil…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000316/LER-1989-012, :on 890624,monthly Channel Checks Required by Tech Spec 3.3.3.6,Table 3.3-10 for Containment Water Level Instruments Not Included in Surveillance Procedure.Caused by Personnel Error.Procedure Revised on 890624

LER-1989-003, :on 890119,valve Stem Seal Leak Allows Air Into Sensor Capillary Tubing Causing Reactor Vessel Level Indication Sys Calibr Shift.Caused by Leakage of High Point Fill Valve Stem Seals
type: Subject
label: 05000316/LER-1989-003, :on 890119,valve Stem Seal Leak Allows Air Into Sensor Capillary Tubing Causing Reactor Vessel Level Indication Sys Calibr Shift.Caused by Leakage of High Point Fill Valve Stem Seals
page: https://kanterella.com/05000316/LER-2D1989-2D003-2C_-3Aon_890119-2Cvalve_Stem_Seal_Leak_Allows_Air_Into_Sensor_Capillary_Tubing_Causing_Reactor_Vessel_Level_Indication_Sys_Calibr_Shift.Caused_by_Leaka…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000316/LER-1989-003, :on 890119,valve Stem Seal Leak Allows Air Into Sensor Capillary Tubing Causing Reactor Vessel Level Indication Sys Calibr Shift.Caused by Leakage of High Point Fill Valve Stem Seals

8 Inch in 46 Flow Passages & 6 of 24 Ice Condenser Bays.Caused by Abnormal Degradation.Ice Condenser Defrosted
type: Subject
label: 05000316/LER-1987-010-01, :on 870902,insps Revealed Frost & Ice Buildup on Lattice Frames of Greater That 3/8 Inch in 46 Flow Passages & 6 of 24 Ice Condenser Bays.Caused by Abnormal Degradation.Ice Condenser Defrosted
page: https://kanterella.com/05000316/LER-2D1987-2D010-2D01-2C_-3Aon_870902-2Cinsps_Revealed_Frost_-26_Ice_Buildup_on_Lattice_Frames_of_Greater_That_3/8_Inch_in_46_Flow_Passages_-26_6_of_24_Ice_Condenser_Ba…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000316/LER-1987-010-01, :on 870902,insps Revealed Frost & Ice Buildup on Lattice Frames of Greater That 3/8 Inch in 46 Flow Passages & 6 of 24 Ice Condenser Bays.Caused by Abnormal Degradation.Ice Condenser Defrosted

LER-1987-008, :on 870604,ESF Actuation Occurred Due to Extreme High Level in Steam Generator 12.Caused by Mispositioning of Both Level Controller & Feedwater Flow Selector Switch.Level Controller Refurbished
type: Subject
label: 05000315/LER-1987-008, :on 870604,ESF Actuation Occurred Due to Extreme High Level in Steam Generator 12.Caused by Mispositioning of Both Level Controller & Feedwater Flow Selector Switch.Level Controller Refurbished
page: https://kanterella.com/05000315/LER-2D1987-2D008-2C_-3Aon_870604-2CESF_Actuation_Occurred_Due_to_Extreme_High_Level_in_Steam_Generator_12.Caused_by_Mispositioning_of_Both_Level_Controller_-26_Feedwate…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000315/LER-1987-008, :on 870604,ESF Actuation Occurred Due to Extreme High Level in Steam Generator 12.Caused by Mispositioning of Both Level Controller & Feedwater Flow Selector Switch.Level Controller Refurbished

LER-1987-011-01, :on 871002,Train a Safety Injection Signal Occurred.Caused by Personnel Error.Safety Injection Signal Reset,Plant Returned to pre-event Status & Personnel Reminded to Reevaluate When Work Exceeds Scope
type: Subject
label: 05000316/LER-1987-011-01, :on 871002,Train a Safety Injection Signal Occurred.Caused by Personnel Error.Safety Injection Signal Reset,Plant Returned to pre-event Status & Personnel Reminded to Reevaluate When Work Exceeds Scope
page: https://kanterella.com/05000316/LER-2D1987-2D011-2D01-2C_-3Aon_871002-2CTrain_a_Safety_Injection_Signal_Occurred.Caused_by_Personnel_Error.Safety_Injection_Signal_Reset-2CPlant_Returned_to_pre-2Devent…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000316/LER-1987-011-01, :on 871002,Train a Safety Injection Signal Occurred.Caused by Personnel Error.Safety Injection Signal Reset,Plant Returned to pre-event Status & Personnel Reminded to Reevaluate When Work Exceeds Scope

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 358A
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-1989-006-01, :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 358A
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-1989-021, :on 891106 & 09,discovered That Locked High Radiation Area Gate Open & Unguarded,Contrary to Tech Spec 6.12.2 Requirements.Caused by Personnel Error.Gates Secured & Addl Locking Mechanisms Installed on Doors
type: Subject
label: 05000528/LER-1989-021, :on 891106 & 09,discovered That Locked High Radiation Area Gate Open & Unguarded,Contrary to Tech Spec 6.12.2 Requirements.Caused by Personnel Error.Gates Secured & Addl Locking Mechanisms Installed on Doors
page: https://kanterella.com/05000528/LER-2D1989-2D021-2C_-3Aon_891106_-26_09-2Cdiscovered_That_Locked_High_Radiation_Area_Gate_Open_-26_Unguarded-2CContrary_to_Tech_Spec_6.12.2_Requirements.Caused_by_Perso…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000528/LER-1989-021, :on 891106 & 09,discovered That Locked High Radiation Area Gate Open & Unguarded,Contrary to Tech Spec 6.12.2 Requirements.Caused by Personnel Error.Gates Secured & Addl Locking Mechanisms Installed on Doors

LER-1989-005, :on 890412,determined That Deficiencies Identified by Control Components,Inc of Atmospheric Dump Valves Constituted Reportable Part 21 Condition.Caused by Improperly Seated Piston Ring.Valve Replaced
type: Subject
label: 05000528/LER-1989-005, :on 890412,determined That Deficiencies Identified by Control Components,Inc of Atmospheric Dump Valves Constituted Reportable Part 21 Condition.Caused by Improperly Seated Piston Ring.Valve Replaced
page: https://kanterella.com/05000528/LER-2D1989-2D005-2C_-3Aon_890412-2Cdetermined_That_Deficiencies_Identified_by_Control_Components-2CInc_of_Atmospheric_Dump_Valves_Constituted_Reportable_Part_21_Conditi…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000528/LER-1989-005, :on 890412,determined That Deficiencies Identified by Control Components,Inc of Atmospheric Dump Valves Constituted Reportable Part 21 Condition.Caused by Improperly Seated Piston Ring.Valve Replaced

LER-1991-026, :on 910918,main Control Room Received Alarms, Indicating RWCU HX Room High Temp & RWCU Outboard Isolation Valve Automatically Closed.Caused by Failed Electric Component.Circuit Input Card Replaced
type: Subject
label: 05000397/LER-1991-026, :on 910918,main Control Room Received Alarms, Indicating RWCU HX Room High Temp & RWCU Outboard Isolation Valve Automatically Closed.Caused by Failed Electric Component.Circuit Input Card Replaced
page: https://kanterella.com/05000397/LER-2D1991-2D026-2C_-3Aon_910918-2Cmain_Control_Room_Received_Alarms-2C_Indicating_RWCU_HX_Room_High_Temp_-26_RWCU_Outboard_Isolation_Valve_Automatically_Closed.Caused_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1991-026, :on 910918,main Control Room Received Alarms, Indicating RWCU HX Room High Temp & RWCU Outboard Isolation Valve Automatically Closed.Caused by Failed Electric Component.Circuit Input Card Replaced

LER-1989-033, :on 890811,RWCU Isolation Occurred When Fuse in Power Supply to Leak Detection Monitor Blew,Giving False High Alarm Signal to Isolation Logic.Cause Unknown.Fuse Replaced & RWCU Sys Restored to Operation
type: Subject
label: 05000397/LER-1989-033, :on 890811,RWCU Isolation Occurred When Fuse in Power Supply to Leak Detection Monitor Blew,Giving False High Alarm Signal to Isolation Logic.Cause Unknown.Fuse Replaced & RWCU Sys Restored to Operation
page: https://kanterella.com/05000397/LER-2D1989-2D033-2C_-3Aon_890811-2CRWCU_Isolation_Occurred_When_Fuse_in_Power_Supply_to_Leak_Detection_Monitor_Blew-2CGiving_False_High_Alarm_Signal_to_Isolation_Logic.…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1989-033, :on 890811,RWCU Isolation Occurred When Fuse in Power Supply to Leak Detection Monitor Blew,Giving False High Alarm Signal to Isolation Logic.Cause Unknown.Fuse Replaced & RWCU Sys Restored to Operation

LER-1988-033, :on 880907,determined That Tech Spec Re Control Room Emergency Filtration Sys Verification Not Performed Since Startup in Dec 1983.Caused by Personnel Error. Temporary Procedure Will Be Initiated
type: Subject
label: 05000397/LER-1988-033, :on 880907,determined That Tech Spec Re Control Room Emergency Filtration Sys Verification Not Performed Since Startup in Dec 1983.Caused by Personnel Error. Temporary Procedure Will Be Initiated
page: https://kanterella.com/05000397/LER-2D1988-2D033-2C_-3Aon_880907-2Cdetermined_That_Tech_Spec_Re_Control_Room_Emergency_Filtration_Sys_Verification_Not_Performed_Since_Startup_in_Dec_1983.Caused_by_Per…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1988-033, :on 880907,determined That Tech Spec Re Control Room Emergency Filtration Sys Verification Not Performed Since Startup in Dec 1983.Caused by Personnel Error. Temporary Procedure Will Be Initiated

05000397/LER-1988-023, :on 880629,Tech Spec Violation of Secondary Containment to Outside Differential Pressure Occurred.Caused by Sys Configuration Error.Instrument Setpoint Change Request Initiated
type: Subject
page: https://kanterella.com/05000397/LER-2D1988-2D023-2C_-3Aon_880629-2CTech_Spec_Violation_of_Secondary_Containment_to_Outside_Differential_Pressure_Occurred.Caused_by_Sys_Configuration_Error.Instrument_S…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1988-023, :on 880629,Tech Spec Violation of Secondary Containment to Outside Differential Pressure Occurred.Caused by Sys Configuration Error.Instrument Setpoint Change Request Initiated

LER-1988-032, :on 880905,inadvertent Containment Isolation of RCIC Sys Steam Supply Line Occurred While Reactor Pressure Held at 90 Psig.Caused by Personnel Error.Startup Halted & Excess Flow Check Valves Reopened
type: Subject
label: 05000397/LER-1988-032, :on 880905,inadvertent Containment Isolation of RCIC Sys Steam Supply Line Occurred While Reactor Pressure Held at 90 Psig.Caused by Personnel Error.Startup Halted & Excess Flow Check Valves Reopened
page: https://kanterella.com/05000397/LER-2D1988-2D032-2C_-3Aon_880905-2Cinadvertent_Containment_Isolation_of_RCIC_Sys_Steam_Supply_Line_Occurred_While_Reactor_Pressure_Held_at_90_Psig.Caused_by_Personnel_E…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1988-032, :on 880905,inadvertent Containment Isolation of RCIC Sys Steam Supply Line Occurred While Reactor Pressure Held at 90 Psig.Caused by Personnel Error.Startup Halted & Excess Flow Check Valves Reopened

LER-1988-034, :on 880909,pipe Failure Caused by Introduction of Liquid Nitrogen Into Primary Containment Supply Purge. Inerting Nitrogen Supply Valve & Containment Supply Purge Shut to Terminate Containment Inerting
type: Subject
label: 05000397/LER-1988-034, :on 880909,pipe Failure Caused by Introduction of Liquid Nitrogen Into Primary Containment Supply Purge. Inerting Nitrogen Supply Valve & Containment Supply Purge Shut to Terminate Containment Inerting
page: https://kanterella.com/05000397/LER-2D1988-2D034-2C_-3Aon_880909-2Cpipe_Failure_Caused_by_Introduction_of_Liquid_Nitrogen_Into_Primary_Containment_Supply_Purge._Inerting_Nitrogen_Supply_Valve_-26_Cont…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1988-034, :on 880909,pipe Failure Caused by Introduction of Liquid Nitrogen Into Primary Containment Supply Purge. Inerting Nitrogen Supply Valve & Containment Supply Purge Shut to Terminate Containment Inerting

LER-1987-032, :on 870602,radiation Monitor REM-21WL-3541 Sample Chamber Instead of REM-21WS-354 Drained for Disconnection Leaving Monitor Inoperable.Caused by Personnel Error.Procedure HPP-495 Prepared
type: Subject
label: 05000400/LER-1987-032, :on 870602,radiation Monitor REM-21WL-3541 Sample Chamber Instead of REM-21WS-354 Drained for Disconnection Leaving Monitor Inoperable.Caused by Personnel Error.Procedure HPP-495 Prepared
page: https://kanterella.com/05000400/LER-2D1987-2D032-2C_-3Aon_870602-2Cradiation_Monitor_REM-2D21WL-2D3541_Sample_Chamber_Instead_of_REM-2D21WS-2D354_Drained_for_Disconnection_Leaving_Monitor_Inoperable.C…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1987-032, :on 870602,radiation Monitor REM-21WL-3541 Sample Chamber Instead of REM-21WS-354 Drained for Disconnection Leaving Monitor Inoperable.Caused by Personnel Error.Procedure HPP-495 Prepared

LER-1988-006, :on 880213,series of Reactor Pressure Vessel Level Transients Resulted in Low Reactor Protective Sys Actuation Following Manual Scram.Caused by Procedural Inadequacy.Procedures Modified
type: Subject
label: 05000397/LER-1988-006, :on 880213,series of Reactor Pressure Vessel Level Transients Resulted in Low Reactor Protective Sys Actuation Following Manual Scram.Caused by Procedural Inadequacy.Procedures Modified
page: https://kanterella.com/05000397/LER-2D1988-2D006-2C_-3Aon_880213-2Cseries_of_Reactor_Pressure_Vessel_Level_Transients_Resulted_in_Low_Reactor_Protective_Sys_Actuation_Following_Manual_Scram.Caused_by_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1988-006, :on 880213,series of Reactor Pressure Vessel Level Transients Resulted in Low Reactor Protective Sys Actuation Following Manual Scram.Caused by Procedural Inadequacy.Procedures Modified

LER-1988-009, :on 880401,standby Gas Treatment Sys Tech Spec Surveillances Not Performed within Time Limits.Caused by Personnel Error.Personnel Counseled & Procedure Revised to Provide Guidance When Surveillance Exceeded
type: Subject
label: 05000397/LER-1988-009, :on 880401,standby Gas Treatment Sys Tech Spec Surveillances Not Performed within Time Limits.Caused by Personnel Error.Personnel Counseled & Procedure Revised to Provide Guidance When Surveillance Exceeded
page: https://kanterella.com/05000397/LER-2D1988-2D009-2C_-3Aon_880401-2Cstandby_Gas_Treatment_Sys_Tech_Spec_Surveillances_Not_Performed_within_Time_Limits.Caused_by_Personnel_Error.Personnel_Counseled_-26_…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1988-009, :on 880401,standby Gas Treatment Sys Tech Spec Surveillances Not Performed within Time Limits.Caused by Personnel Error.Personnel Counseled & Procedure Revised to Provide Guidance When Surveillance Exceeded

LER-1987-033, :on 871218,plant Tech Spec Sections 4.0.5 Re ASME Valve in-service Testing Requirements & 3.6.3 Concerning Containment Valve Operability Not Met.Caused by Personnel Error.No Corrective Action
type: Subject
label: 05000397/LER-1987-033, :on 871218,plant Tech Spec Sections 4.0.5 Re ASME Valve in-service Testing Requirements & 3.6.3 Concerning Containment Valve Operability Not Met.Caused by Personnel Error.No Corrective Action
page: https://kanterella.com/05000397/LER-2D1987-2D033-2C_-3Aon_871218-2Cplant_Tech_Spec_Sections_4.0.5_Re_ASME_Valve_in-2Dservice_Testing_Requirements_-26_3.6.3_Concerning_Containment_Valve_Operability_Not…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000397/LER-1987-033, :on 871218,plant Tech Spec Sections 4.0.5 Re ASME Valve in-service Testing Requirements & 3.6.3 Concerning Containment Valve Operability Not Met.Caused by Personnel Error.No Corrective Action

LER-1986-011-02, :on 860709,during Full Power,Both Diesel Generators Simultaneously Taken Out of Svc.Caused by Personnel Error & Broken Roll Pin in Governor of Diesel Generator 2A2.Maint Personnel Counseled
type: Subject
label: 05000389/LER-1986-011-02, :on 860709,during Full Power,Both Diesel Generators Simultaneously Taken Out of Svc.Caused by Personnel Error & Broken Roll Pin in Governor of Diesel Generator 2A2.Maint Personnel Counseled
page: https://kanterella.com/05000389/LER-2D1986-2D011-2D02-2C_-3Aon_860709-2Cduring_Full_Power-2CBoth_Diesel_Generators_Simultaneously_Taken_Out_of_Svc.Caused_by_Personnel_Error_-26_Broken_Roll_Pin_in_Gove…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000389/LER-1986-011-02, :on 860709,during Full Power,Both Diesel Generators Simultaneously Taken Out of Svc.Caused by Personnel Error & Broken Roll Pin in Governor of Diesel Generator 2A2.Maint Personnel Counseled

LER-1992-012-02, :on 920802,one of Three Secondary Relays Failed to Actuate,Causing TS 3.0.3 to Be Entered.Caused by Failure of under-voltage Relay to Actuate.Procedure Will Be Revised to Provide Guidance for Tripped Condition
type: Subject
label: 05000400/LER-1992-012-02, :on 920802,one of Three Secondary Relays Failed to Actuate,Causing TS 3.0.3 to Be Entered.Caused by Failure of under-voltage Relay to Actuate.Procedure Will Be Revised to Provide Guidance for Tripped Condition
page: https://kanterella.com/05000400/LER-2D1992-2D012-2D02-2C_-3Aon_920802-2Cone_of_Three_Secondary_Relays_Failed_to_Actuate-2CCausing_TS_3.0.3_to_Be_Entered.Caused_by_Failure_of_under-2Dvoltage_Relay_to_A…
wiki namespace: 0
wiki page content language: en
NRC form: NRC Form 358A
wiki page sort key: 05000400/LER-1992-012-02, :on 920802,one of Three Secondary Relays Failed to Actuate,Causing TS 3.0.3 to Be Entered.Caused by Failure of under-voltage Relay to Actuate.Procedure Will Be Revised to Provide Guidance for Tripped Condition

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