Colombo R
type: Ontology
creation date: 2025-12-11T18:16:50-05:00
imports: http://semantic-mediawiki.org/swivt/1.0

Colombo R
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page: https://kanterella.com/Colombo_R
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Tech Spec 4.4.1.2.5.(c).Caused by Technicians Not Adhering to Procedures.Retest Conducted on 851216
type: Subject
label: 05000312/LER-1985-027, :on 851214,licensee Discovered That Testing Requirements for Containment Personnel Air Lock Seals Not in Accordance W/Tech Spec 4.4.1.2.5.(c).Caused by Technicians Not Adhering to Procedures.Retest Conducted on 851216
page: https://kanterella.com/05000312/LER-2D1985-2D027-2C_-3Aon_851214-2Clicensee_Discovered_That_Testing_Requirements_for_Containment_Personnel_Air_Lock_Seals_Not_in_Accordance_W/Tech_Spec_4.4.1.2.5.-28c-2…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-027, :on 851214,licensee Discovered That Testing Requirements for Containment Personnel Air Lock Seals Not in Accordance W/Tech Spec 4.4.1.2.5.(c).Caused by Technicians Not Adhering to Procedures.Retest Conducted on 851216

LER-1985-026, :on 850910,diesel Generators a & B Declared Inoperable.Diesel Generator B Failed to Start.Diesel Generator a Removed from Svc for Troubleshooting.Diesel Generator B Capable of Performing Intended Function
type: Subject
label: 05000312/LER-1985-026, :on 850910,diesel Generators a & B Declared Inoperable.Diesel Generator B Failed to Start.Diesel Generator a Removed from Svc for Troubleshooting.Diesel Generator B Capable of Performing Intended Function
page: https://kanterella.com/05000312/LER-2D1985-2D026-2C_-3Aon_850910-2Cdiesel_Generators_a_-26_B_Declared_Inoperable.Diesel_Generator_B_Failed_to_Start.Diesel_Generator_a_Removed_from_Svc_for_Troubleshoot…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-026, :on 850910,diesel Generators a & B Declared Inoperable.Diesel Generator B Failed to Start.Diesel Generator a Removed from Svc for Troubleshooting.Diesel Generator B Capable of Performing Intended Function

LER-1987-034, :on 870602,make-up & Two High Pressure Injection Pumps Declared Inoperable.Caused by Improper Classification of Min Flow Recirculation Lines.Design Package to Upgrade Lines Will Be Prepared
type: Subject
label: 05000312/LER-1987-034, :on 870602,make-up & Two High Pressure Injection Pumps Declared Inoperable.Caused by Improper Classification of Min Flow Recirculation Lines.Design Package to Upgrade Lines Will Be Prepared
page: https://kanterella.com/05000312/LER-2D1987-2D034-2C_-3Aon_870602-2Cmake-2Dup_-26_Two_High_Pressure_Injection_Pumps_Declared_Inoperable.Caused_by_Improper_Classification_of_Min_Flow_Recirculation_Lines…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-034, :on 870602,make-up & Two High Pressure Injection Pumps Declared Inoperable.Caused by Improper Classification of Min Flow Recirculation Lines.Design Package to Upgrade Lines Will Be Prepared

LER-1985-028, :on 851030,control Room Operator Noticed That Auxiliary Pump P-319 Started Automatically.Exact Starting Time Could Not Be Confirmed.Caused by Low Main Feedwater Discharge Pressure
type: Subject
label: 05000312/LER-1985-028, :on 851030,control Room Operator Noticed That Auxiliary Pump P-319 Started Automatically.Exact Starting Time Could Not Be Confirmed.Caused by Low Main Feedwater Discharge Pressure
page: https://kanterella.com/05000312/LER-2D1985-2D028-2C_-3Aon_851030-2Ccontrol_Room_Operator_Noticed_That_Auxiliary_Pump_P-2D319_Started_Automatically.Exact_Starting_Time_Could_Not_Be_Confirmed.Caused_by_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-028, :on 851030,control Room Operator Noticed That Auxiliary Pump P-319 Started Automatically.Exact Starting Time Could Not Be Confirmed.Caused by Low Main Feedwater Discharge Pressure

LER-1987-033, :on 870529,11 Hourly Fire Watches Required by Tech Specs Missed.Caused by Unexpected Demand on Available Manpower Due to Breakdown in Security Computer Sys.Fire Watch Pool Will Be Established
type: Subject
label: 05000312/LER-1987-033, :on 870529,11 Hourly Fire Watches Required by Tech Specs Missed.Caused by Unexpected Demand on Available Manpower Due to Breakdown in Security Computer Sys.Fire Watch Pool Will Be Established
page: https://kanterella.com/05000312/LER-2D1987-2D033-2C_-3Aon_870529-2C11_Hourly_Fire_Watches_Required_by_Tech_Specs_Missed.Caused_by_Unexpected_Demand_on_Available_Manpower_Due_to_Breakdown_in_Security_C…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-033, :on 870529,11 Hourly Fire Watches Required by Tech Specs Missed.Caused by Unexpected Demand on Available Manpower Due to Breakdown in Security Computer Sys.Fire Watch Pool Will Be Established

LER-1987-030, :on 870529,due to Concurrent Work on Radiation Monitors R15049 & R15050,number of Operable Channels to Trip Reactor Bldg Purge Sys Reduced to Zero.Caused by Cognitive Personnel Error.Personnel Trained
type: Subject
label: 05000312/LER-1987-030, :on 870529,due to Concurrent Work on Radiation Monitors R15049 & R15050,number of Operable Channels to Trip Reactor Bldg Purge Sys Reduced to Zero.Caused by Cognitive Personnel Error.Personnel Trained
page: https://kanterella.com/05000312/LER-2D1987-2D030-2C_-3Aon_870529-2Cdue_to_Concurrent_Work_on_Radiation_Monitors_R15049_-26_R15050-2Cnumber_of_Operable_Channels_to_Trip_Reactor_Bldg_Purge_Sys_Reduced_t…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-030, :on 870529,due to Concurrent Work on Radiation Monitors R15049 & R15050,number of Operable Channels to Trip Reactor Bldg Purge Sys Reduced to Zero.Caused by Cognitive Personnel Error.Personnel Trained

LER-1987-032, :on 870526 & 0614,PORV Isolation Valve Stroke Tested,Rendering Low Temp Overpressure Protection Inoperable,Contrary to Tech Spec 3.2.2.1.Caused by Deficient Procedure.Procedure Will Be Revised
type: Subject
label: 05000312/LER-1987-032, :on 870526 & 0614,PORV Isolation Valve Stroke Tested,Rendering Low Temp Overpressure Protection Inoperable,Contrary to Tech Spec 3.2.2.1.Caused by Deficient Procedure.Procedure Will Be Revised
page: https://kanterella.com/05000312/LER-2D1987-2D032-2C_-3Aon_870526_-26_0614-2CPORV_Isolation_Valve_Stroke_Tested-2CRendering_Low_Temp_Overpressure_Protection_Inoperable-2CContrary_to_Tech_Spec_3.2.2.1.C…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-032, :on 870526 & 0614,PORV Isolation Valve Stroke Tested,Rendering Low Temp Overpressure Protection Inoperable,Contrary to Tech Spec 3.2.2.1.Caused by Deficient Procedure.Procedure Will Be Revised

LER-1986-024, :on 861115,during Fuse Replacement Activity in Bus Inverter S1A,power Momentarily Interrupted & DHR Train a Tripped.Caused by Design Not Allowing for Testability Using Substitute Power Source
type: Subject
label: 05000312/LER-1986-024, :on 861115,during Fuse Replacement Activity in Bus Inverter S1A,power Momentarily Interrupted & DHR Train a Tripped.Caused by Design Not Allowing for Testability Using Substitute Power Source
page: https://kanterella.com/05000312/LER-2D1986-2D024-2C_-3Aon_861115-2Cduring_Fuse_Replacement_Activity_in_Bus_Inverter_S1A-2Cpower_Momentarily_Interrupted_-26_DHR_Train_a_Tripped.Caused_by_Design_Not_All…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-024, :on 861115,during Fuse Replacement Activity in Bus Inverter S1A,power Momentarily Interrupted & DHR Train a Tripped.Caused by Design Not Allowing for Testability Using Substitute Power Source

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

LER-1987-028, :on 870514,diesel Generator B Automatically Started.Caused by Overvoltage Sensed by Emergency Power Supply Sys from Switchyard.Rev 2 to Proposed Tech Spec Amend 147 Submitted to Enhance Controls
type: Subject
label: 05000312/LER-1987-028, :on 870514,diesel Generator B Automatically Started.Caused by Overvoltage Sensed by Emergency Power Supply Sys from Switchyard.Rev 2 to Proposed Tech Spec Amend 147 Submitted to Enhance Controls
page: https://kanterella.com/05000312/LER-2D1987-2D028-2C_-3Aon_870514-2Cdiesel_Generator_B_Automatically_Started.Caused_by_Overvoltage_Sensed_by_Emergency_Power_Supply_Sys_from_Switchyard.Rev_2_to_Proposed…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-028, :on 870514,diesel Generator B Automatically Started.Caused by Overvoltage Sensed by Emergency Power Supply Sys from Switchyard.Rev 2 to Proposed Tech Spec Amend 147 Submitted to Enhance Controls

LER-1987-017, :on 870209 & 0320,discrepancies in Local Leak Rate Test (LLRT) Discovered.Caused by Personnel Error.Tech Specs,Updated Sar,Integrated Leak Rate Tests & LLRT Will Be Revised to Reflect Addl Test Requirements
type: Subject
label: 05000312/LER-1987-017, :on 870209 & 0320,discrepancies in Local Leak Rate Test (LLRT) Discovered.Caused by Personnel Error.Tech Specs,Updated Sar,Integrated Leak Rate Tests & LLRT Will Be Revised to Reflect Addl Test Requirements
page: https://kanterella.com/05000312/LER-2D1987-2D017-2C_-3Aon_870209_-26_0320-2Cdiscrepancies_in_Local_Leak_Rate_Test_-28LLRT-29_Discovered.Caused_by_Personnel_Error.Tech_Specs-2CUpdated_Sar-2CIntegrated_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-017, :on 870209 & 0320,discrepancies in Local Leak Rate Test (LLRT) Discovered.Caused by Personnel Error.Tech Specs,Updated Sar,Integrated Leak Rate Tests & LLRT Will Be Revised to Reflect Addl Test Requirements

LER-1985-001, :on 850124,operations Personnel Found Hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency.Cover Panels added.Post-accident Sampling Sys Operation Procedure Revised
type: Subject
label: 05000312/LER-1985-001, :on 850124,operations Personnel Found Hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency.Cover Panels added.Post-accident Sampling Sys Operation Procedure Revised
page: https://kanterella.com/05000312/LER-2D1985-2D001-2C_-3Aon_850124-2Coperations_Personnel_Found_Hydrogen_Monitor_Sys_Containment_Isolation_Valves_Open.Caused_by_Tagging_Inconsistency.Cover_Panels_added.…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-001, :on 850124,operations Personnel Found Hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency.Cover Panels added.Post-accident Sampling Sys Operation Procedure Revised

LER-1987-016, :on 870206,discovered That Cable Pulls Made Into safety-related Breaker Cubicle Cabinets for Both Trains of Emergency Electrical Power Left for Several Wks Causing Invalid Seismic Analysis.Caused by Const Error
type: Subject
label: 05000312/LER-1987-016, :on 870206,discovered That Cable Pulls Made Into safety-related Breaker Cubicle Cabinets for Both Trains of Emergency Electrical Power Left for Several Wks Causing Invalid Seismic Analysis.Caused by Const Error
page: https://kanterella.com/05000312/LER-2D1987-2D016-2C_-3Aon_870206-2Cdiscovered_That_Cable_Pulls_Made_Into_safety-2Drelated_Breaker_Cubicle_Cabinets_for_Both_Trains_of_Emergency_Electrical_Power_Left_fo…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-016, :on 870206,discovered That Cable Pulls Made Into safety-related Breaker Cubicle Cabinets for Both Trains of Emergency Electrical Power Left for Several Wks Causing Invalid Seismic Analysis.Caused by Const Error

LER-1987-014, :on 870204,12 & 13,deficiencies in Inservice Insp Procedures in Violation of Tech Spec 4.2.2.1 Discovered.Caused by Personnel Error.Missed Valve Insp Conducted.Procedure Development Underway
type: Subject
label: 05000312/LER-1987-014, :on 870204,12 & 13,deficiencies in Inservice Insp Procedures in Violation of Tech Spec 4.2.2.1 Discovered.Caused by Personnel Error.Missed Valve Insp Conducted.Procedure Development Underway
page: https://kanterella.com/05000312/LER-2D1987-2D014-2C_-3Aon_870204-2C12_-26_13-2Cdeficiencies_in_Inservice_Insp_Procedures_in_Violation_of_Tech_Spec_4.2.2.1_Discovered.Caused_by_Personnel_Error.Missed_V…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-014, :on 870204,12 & 13,deficiencies in Inservice Insp Procedures in Violation of Tech Spec 4.2.2.1 Discovered.Caused by Personnel Error.Missed Valve Insp Conducted.Procedure Development Underway

LER-1986-031, :on 860804,hourly Instead of Continuous Fire Watch Performed.Caused by Operator Error.Fire Protection Coordinator Will Establish Agreed Upon Terminology for Fire Staff to Use When Communicating
type: Subject
label: 05000312/LER-1986-031, :on 860804,hourly Instead of Continuous Fire Watch Performed.Caused by Operator Error.Fire Protection Coordinator Will Establish Agreed Upon Terminology for Fire Staff to Use When Communicating
page: https://kanterella.com/05000312/LER-2D1986-2D031-2C_-3Aon_860804-2Chourly_Instead_of_Continuous_Fire_Watch_Performed.Caused_by_Operator_Error.Fire_Protection_Coordinator_Will_Establish_Agreed_Upon_Ter…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-031, :on 860804,hourly Instead of Continuous Fire Watch Performed.Caused by Operator Error.Fire Protection Coordinator Will Establish Agreed Upon Terminology for Fire Staff to Use When Communicating

LER-1986-012, :on 860606 & 09,while in Cold Shutdown,Two Snubbers Removed from Operating Decay Heat Sys.Caused by Personnel Error.Snubbers Reinstalled & Planned Work on Snubbers Delayed Until Decay Heat Sys Outage
type: Subject
label: 05000312/LER-1986-012, :on 860606 & 09,while in Cold Shutdown,Two Snubbers Removed from Operating Decay Heat Sys.Caused by Personnel Error.Snubbers Reinstalled & Planned Work on Snubbers Delayed Until Decay Heat Sys Outage
page: https://kanterella.com/05000312/LER-2D1986-2D012-2C_-3Aon_860606_-26_09-2Cwhile_in_Cold_Shutdown-2CTwo_Snubbers_Removed_from_Operating_Decay_Heat_Sys.Caused_by_Personnel_Error.Snubbers_Reinstalled_-26…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-012, :on 860606 & 09,while in Cold Shutdown,Two Snubbers Removed from Operating Decay Heat Sys.Caused by Personnel Error.Snubbers Reinstalled & Planned Work on Snubbers Delayed Until Decay Heat Sys Outage

05000312/LER-1986-013, :on 860630,0706,22 & 23,CR/TSC Essential HVAC Sys a & B Autostarted.Incidents Part of Recurring Problems W/Design,Control & Operation of Cr/Tsc Essential HVAC Sys.W/
type: Subject
page: https://kanterella.com/05000312/LER-2D1986-2D013-2C_-3Aon_860630-2C0706-2C22_-26_23-2CCR/TSC_Essential_HVAC_Sys_a_-26_B_Autostarted.Incidents_Part_of_Recurring_Problems_W/Design-2CControl_-26_Operatio…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-013, :on 860630,0706,22 & 23,CR/TSC Essential HVAC Sys a & B Autostarted.Incidents Part of Recurring Problems W/Design,Control & Operation of Cr/Tsc Essential HVAC Sys.W/

10CFR50,App R. Caused by Inadequate Assessment of Hot Short Effects.Design of Valves Will Be Modified,Per 10CFR50,App R
type: Subject
label: 05000312/LER-1987-010, :on 870119,electrical Configuration for RCS High Point Valves Found in Noncompliance w/10CFR50,App R. Caused by Inadequate Assessment of Hot Short Effects.Design of Valves Will Be Modified,Per 10CFR50,App R
page: https://kanterella.com/05000312/LER-2D1987-2D010-2C_-3Aon_870119-2Celectrical_Configuration_for_RCS_High_Point_Valves_Found_in_Noncompliance_w/10CFR50-2CApp_R._Caused_by_Inadequate_Assessment_of_Hot_S…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-010, :on 870119,electrical Configuration for RCS High Point Valves Found in Noncompliance w/10CFR50,App R. Caused by Inadequate Assessment of Hot Short Effects.Design of Valves Will Be Modified,Per 10CFR50,App R

LER-1987-005, :on 870113,condensate Storage Tank Level Instrument Used to Determine Auxiliary Feedwater Pump Capacities During Periodic Surveillance Testing Not Adequately Calibr.Cause Not Stated
type: Subject
label: 05000312/LER-1987-005, :on 870113,condensate Storage Tank Level Instrument Used to Determine Auxiliary Feedwater Pump Capacities During Periodic Surveillance Testing Not Adequately Calibr.Cause Not Stated
page: https://kanterella.com/05000312/LER-2D1987-2D005-2C_-3Aon_870113-2Ccondensate_Storage_Tank_Level_Instrument_Used_to_Determine_Auxiliary_Feedwater_Pump_Capacities_During_Periodic_Surveillance_Testing_N…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-005, :on 870113,condensate Storage Tank Level Instrument Used to Determine Auxiliary Feedwater Pump Capacities During Periodic Surveillance Testing Not Adequately Calibr.Cause Not Stated

LER-1987-004, :on 870114,fire Watch Prematurely Removed in Violation of Tech Specs.Caused by Central Alarm Station Operator Error.Operator Removed from Duties & Assigned as Field Sergeant as Disciplinary Measure
type: Subject
label: 05000312/LER-1987-004, :on 870114,fire Watch Prematurely Removed in Violation of Tech Specs.Caused by Central Alarm Station Operator Error.Operator Removed from Duties & Assigned as Field Sergeant as Disciplinary Measure
page: https://kanterella.com/05000312/LER-2D1987-2D004-2C_-3Aon_870114-2Cfire_Watch_Prematurely_Removed_in_Violation_of_Tech_Specs.Caused_by_Central_Alarm_Station_Operator_Error.Operator_Removed_from_Duties…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-004, :on 870114,fire Watch Prematurely Removed in Violation of Tech Specs.Caused by Central Alarm Station Operator Error.Operator Removed from Duties & Assigned as Field Sergeant as Disciplinary Measure

LER-1987-003, :on 870120,welding Work Performed in Fire Zones 13 & 75 Required Continuous Fire Watch Post,But Only Hourly Fire Watch Performed by Fire Protection Staff.Caused by Personnel Error.Personnel Involved Reprimanded
type: Subject
label: 05000312/LER-1987-003, :on 870120,welding Work Performed in Fire Zones 13 & 75 Required Continuous Fire Watch Post,But Only Hourly Fire Watch Performed by Fire Protection Staff.Caused by Personnel Error.Personnel Involved Reprimanded
page: https://kanterella.com/05000312/LER-2D1987-2D003-2C_-3Aon_870120-2Cwelding_Work_Performed_in_Fire_Zones_13_-26_75_Required_Continuous_Fire_Watch_Post-2CBut_Only_Hourly_Fire_Watch_Performed_by_Fire_Pro…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-003, :on 870120,welding Work Performed in Fire Zones 13 & 75 Required Continuous Fire Watch Post,But Only Hourly Fire Watch Performed by Fire Protection Staff.Caused by Personnel Error.Personnel Involved Reprimanded

LER-1987-001, :on 870117,fire Zone Detection & Suppression Sys Disabled for Grinding Work & Hourly Fire Watch Instituted Instead of Continuous Fire Watches.Caused by Failure to Follow Procedure
type: Subject
label: 05000312/LER-1987-001, :on 870117,fire Zone Detection & Suppression Sys Disabled for Grinding Work & Hourly Fire Watch Instituted Instead of Continuous Fire Watches.Caused by Failure to Follow Procedure
page: https://kanterella.com/05000312/LER-2D1987-2D001-2C_-3Aon_870117-2Cfire_Zone_Detection_-26_Suppression_Sys_Disabled_for_Grinding_Work_-26_Hourly_Fire_Watch_Instituted_Instead_of_Continuous_Fire_Watche…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-001, :on 870117,fire Zone Detection & Suppression Sys Disabled for Grinding Work & Hourly Fire Watch Instituted Instead of Continuous Fire Watches.Caused by Failure to Follow Procedure

05000312/LER-1987-008, :on 870115,discovered Inadequate Sequencing of Diesel Generator High Pressure Pumps During Automatic Loading.Caused by Design Error.Design Control Procedures Implemented
type: Subject
page: https://kanterella.com/05000312/LER-2D1987-2D008-2C_-3Aon_870115-2Cdiscovered_Inadequate_Sequencing_of_Diesel_Generator_High_Pressure_Pumps_During_Automatic_Loading.Caused_by_Design_Error.Design_Contr…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-008, :on 870115,discovered Inadequate Sequencing of Diesel Generator High Pressure Pumps During Automatic Loading.Caused by Design Error.Design Control Procedures Implemented

10CFR50,App R.Caused by Original Design Error.Instructions Written & Corrective Design Mods Initiated
type: Subject
label: 05000312/LER-1987-002, :on 870108,determined That One Area in Existing Plant Electrical Distribution Sys in Noncompliance W/ 10CFR50,App R.Caused by Original Design Error.Instructions Written & Corrective Design Mods Initiated
page: https://kanterella.com/05000312/LER-2D1987-2D002-2C_-3Aon_870108-2Cdetermined_That_One_Area_in_Existing_Plant_Electrical_Distribution_Sys_in_Noncompliance_W/_10CFR50-2CApp_R.Caused_by_Original_Design_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-002, :on 870108,determined That One Area in Existing Plant Electrical Distribution Sys in Noncompliance W/ 10CFR50,App R.Caused by Original Design Error.Instructions Written & Corrective Design Mods Initiated

LER-1985-009, :on 850530,diesel Generator B Failed to Follow Normal Shutdown Sequence When Stop Button on Safety Features Control Panel Pressed.Caused by 4,160-volt Safety Bus Undervoltage Condition.Time Delay Relay Added
type: Subject
label: 05000312/LER-1985-009, :on 850530,diesel Generator B Failed to Follow Normal Shutdown Sequence When Stop Button on Safety Features Control Panel Pressed.Caused by 4,160-volt Safety Bus Undervoltage Condition.Time Delay Relay Added
page: https://kanterella.com/05000312/LER-2D1985-2D009-2C_-3Aon_850530-2Cdiesel_Generator_B_Failed_to_Follow_Normal_Shutdown_Sequence_When_Stop_Button_on_Safety_Features_Control_Panel_Pressed.Caused_by_4-2C…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-009, :on 850530,diesel Generator B Failed to Follow Normal Shutdown Sequence When Stop Button on Safety Features Control Panel Pressed.Caused by 4,160-volt Safety Bus Undervoltage Condition.Time Delay Relay Added

LER-1986-015, :on 850921,two Trace Solder Pads Dislodged from Component Side of Printed Circuit Board.Dislodged Solder Pads Caused Nonconforming Rept to Be Written.Guidance Will Be Prepared for Technicians
type: Subject
label: 05000312/LER-1986-015, :on 850921,two Trace Solder Pads Dislodged from Component Side of Printed Circuit Board.Dislodged Solder Pads Caused Nonconforming Rept to Be Written.Guidance Will Be Prepared for Technicians
page: https://kanterella.com/05000312/LER-2D1986-2D015-2C_-3Aon_850921-2Ctwo_Trace_Solder_Pads_Dislodged_from_Component_Side_of_Printed_Circuit_Board.Dislodged_Solder_Pads_Caused_Nonconforming_Rept_to_Be_Wr…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-015, :on 850921,two Trace Solder Pads Dislodged from Component Side of Printed Circuit Board.Dislodged Solder Pads Caused Nonconforming Rept to Be Written.Guidance Will Be Prepared for Technicians

LER-1987-020, :on 870212,discovered New Locations for Garden & Residence Not Added to Radiological Environ Monitoring Program within 30 Days of Identification.Caused by Personnel Error.Program Updated
type: Subject
label: 05000312/LER-1987-020, :on 870212,discovered New Locations for Garden & Residence Not Added to Radiological Environ Monitoring Program within 30 Days of Identification.Caused by Personnel Error.Program Updated
page: https://kanterella.com/05000312/LER-2D1987-2D020-2C_-3Aon_870212-2Cdiscovered_New_Locations_for_Garden_-26_Residence_Not_Added_to_Radiological_Environ_Monitoring_Program_within_30_Days_of_Identificati…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-020, :on 870212,discovered New Locations for Garden & Residence Not Added to Radiological Environ Monitoring Program within 30 Days of Identification.Caused by Personnel Error.Program Updated

05000312/LER-1987-019, :on 870213,fire Watch Not Upgraded When Fire Detection Sys Removed from Svc.Caused by Personnel Error. Special Order 87-15 Issued to Clarify Procedures
type: Subject
page: https://kanterella.com/05000312/LER-2D1987-2D019-2C_-3Aon_870213-2Cfire_Watch_Not_Upgraded_When_Fire_Detection_Sys_Removed_from_Svc.Caused_by_Personnel_Error._Special_Order_87-2D15_Issued_to_Clarify_P…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-019, :on 870213,fire Watch Not Upgraded When Fire Detection Sys Removed from Svc.Caused by Personnel Error. Special Order 87-15 Issued to Clarify Procedures

LER-1986-032, :on 861218,hourly Fire Watch for Fire Zone 39 Missed for 1 H While CO2 Sys Inoperable Due to Hole Being Drilled Through Wall for Conduit Installation.Caused by Operations Error.Info Streamlined
type: Subject
label: 05000312/LER-1986-032, :on 861218,hourly Fire Watch for Fire Zone 39 Missed for 1 H While CO2 Sys Inoperable Due to Hole Being Drilled Through Wall for Conduit Installation.Caused by Operations Error.Info Streamlined
page: https://kanterella.com/05000312/LER-2D1986-2D032-2C_-3Aon_861218-2Chourly_Fire_Watch_for_Fire_Zone_39_Missed_for_1_H_While_CO2_Sys_Inoperable_Due_to_Hole_Being_Drilled_Through_Wall_for_Conduit_Install…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-032, :on 861218,hourly Fire Watch for Fire Zone 39 Missed for 1 H While CO2 Sys Inoperable Due to Hole Being Drilled Through Wall for Conduit Installation.Caused by Operations Error.Info Streamlined

LER-1986-033, :on 861220,local Continuous Sampling Device on Reactor Bldg Not Operating Due to Loss of Power Receptacle. Caused by Overuse of Receptacle.Similar Event Occurred on 861223.Outlets Tagged
type: Subject
label: 05000312/LER-1986-033, :on 861220,local Continuous Sampling Device on Reactor Bldg Not Operating Due to Loss of Power Receptacle. Caused by Overuse of Receptacle.Similar Event Occurred on 861223.Outlets Tagged
page: https://kanterella.com/05000312/LER-2D1986-2D033-2C_-3Aon_861220-2Clocal_Continuous_Sampling_Device_on_Reactor_Bldg_Not_Operating_Due_to_Loss_of_Power_Receptacle._Caused_by_Overuse_of_Receptacle.Simil…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-033, :on 861220,local Continuous Sampling Device on Reactor Bldg Not Operating Due to Loss of Power Receptacle. Caused by Overuse of Receptacle.Similar Event Occurred on 861223.Outlets Tagged

05000312/LER-1986-030, :on 861208,decay Heat Sys Isolation Occurred During Transfer of Source Transformer.Caused by Personnel Error & Inadequate Procedure.Personnel Counseled & Procedures Revised
type: Subject
page: https://kanterella.com/05000312/LER-2D1986-2D030-2C_-3Aon_861208-2Cdecay_Heat_Sys_Isolation_Occurred_During_Transfer_of_Source_Transformer.Caused_by_Personnel_Error_-26_Inadequate_Procedure.Personnel_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-030, :on 861208,decay Heat Sys Isolation Occurred During Transfer of Source Transformer.Caused by Personnel Error & Inadequate Procedure.Personnel Counseled & Procedures Revised

Lug Assemblies in Bailey Cabinets.Maint Stds & Insp Plan Developed
type: Subject
label: 05000312/LER-1986-011, :on 860424,during Visual Insps of Internal Wiring Terminations,Seven Internal Compression Terminations Failed.Caused by Loose Conductor/Lug Assemblies in Bailey Cabinets.Maint Stds & Insp Plan Developed
page: https://kanterella.com/05000312/LER-2D1986-2D011-2C_-3Aon_860424-2Cduring_Visual_Insps_of_Internal_Wiring_Terminations-2CSeven_Internal_Compression_Terminations_Failed.Caused_by_Loose_Conductor/Lug_As…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-011, :on 860424,during Visual Insps of Internal Wiring Terminations,Seven Internal Compression Terminations Failed.Caused by Loose Conductor/Lug Assemblies in Bailey Cabinets.Maint Stds & Insp Plan Developed

LER-1986-017, :on 860826,discovered That Plant Operated Outside Tech Specs Since 1983.Condition Could Have Caused Failure of Safety Sys Train in Event of Large Break Loca. Proposes Installation of Diesel Generators
type: Subject
label: 05000312/LER-1986-017, :on 860826,discovered That Plant Operated Outside Tech Specs Since 1983.Condition Could Have Caused Failure of Safety Sys Train in Event of Large Break Loca. Proposes Installation of Diesel Generators
page: https://kanterella.com/05000312/LER-2D1986-2D017-2C_-3Aon_860826-2Cdiscovered_That_Plant_Operated_Outside_Tech_Specs_Since_1983.Condition_Could_Have_Caused_Failure_of_Safety_Sys_Train_in_Event_of_Larg…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-017, :on 860826,discovered That Plant Operated Outside Tech Specs Since 1983.Condition Could Have Caused Failure of Safety Sys Train in Event of Large Break Loca. Proposes Installation of Diesel Generators

LER-1986-019, :on 860826,auxiliary Bldg Gas Radiation Monitor Declared Inoperable.Noble Gas Grab Sample Not Taken at Required Time.Caused by Assumption That Sample Taken Shortly After Monitor Declared Inoperable
type: Subject
label: 05000312/LER-1986-019, :on 860826,auxiliary Bldg Gas Radiation Monitor Declared Inoperable.Noble Gas Grab Sample Not Taken at Required Time.Caused by Assumption That Sample Taken Shortly After Monitor Declared Inoperable
page: https://kanterella.com/05000312/LER-2D1986-2D019-2C_-3Aon_860826-2Cauxiliary_Bldg_Gas_Radiation_Monitor_Declared_Inoperable.Noble_Gas_Grab_Sample_Not_Taken_at_Required_Time.Caused_by_Assumption_That_S…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-019, :on 860826,auxiliary Bldg Gas Radiation Monitor Declared Inoperable.Noble Gas Grab Sample Not Taken at Required Time.Caused by Assumption That Sample Taken Shortly After Monitor Declared Inoperable

LER-1987-013-01, :on 870204,discrepancy Discovered Between Routing of Instrumentation Cables 1Y3X210B1 & 1Y3X215A1 & Designated Routing Per Cable Raceway Tracking Sys (Crts).On 870206,five Addl Crts Discrepancies Noted
type: Subject
label: 05000312/LER-1987-013-01, :on 870204,discrepancy Discovered Between Routing of Instrumentation Cables 1Y3X210B1 & 1Y3X215A1 & Designated Routing Per Cable Raceway Tracking Sys (Crts).On 870206,five Addl Crts Discrepancies Noted
page: https://kanterella.com/05000312/LER-2D1987-2D013-2D01-2C_-3Aon_870204-2Cdiscrepancy_Discovered_Between_Routing_of_Instrumentation_Cables_1Y3X210B1_-26_1Y3X215A1_-26_Designated_Routing_Per_Cable_Racewa…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-013-01, :on 870204,discrepancy Discovered Between Routing of Instrumentation Cables 1Y3X210B1 & 1Y3X215A1 & Designated Routing Per Cable Raceway Tracking Sys (Crts).On 870206,five Addl Crts Discrepancies Noted

O Adequate Water Level & Inadequate Administrative Controls.Root Cause Investigation 86-34 Issued
type: Subject
label: 05000312/LER-1987-021, :on 861121,pressurizer Heater Bundles Damaged Following Heater Breaker Trips.Caused by Energization of Heaters W/O Adequate Water Level & Inadequate Administrative Controls.Root Cause Investigation 86-34 Issued
page: https://kanterella.com/05000312/LER-2D1987-2D021-2C_-3Aon_861121-2Cpressurizer_Heater_Bundles_Damaged_Following_Heater_Breaker_Trips.Caused_by_Energization_of_Heaters_W/O_Adequate_Water_Level_-26_Inad…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-021, :on 861121,pressurizer Heater Bundles Damaged Following Heater Breaker Trips.Caused by Energization of Heaters W/O Adequate Water Level & Inadequate Administrative Controls.Root Cause Investigation 86-34 Issued

LER-1986-006, :on 860414,failure to Implement Fire Protection Deluge Sys 3-yr Flow Test Identified.Caused by Confusion Over Tech Spec Requirements.Spray Sys Reviewed.Procedures Reviewed for mods.Cross-reference List Revised
type: Subject
label: 05000312/LER-1986-006, :on 860414,failure to Implement Fire Protection Deluge Sys 3-yr Flow Test Identified.Caused by Confusion Over Tech Spec Requirements.Spray Sys Reviewed.Procedures Reviewed for mods.Cross-reference List Revised
page: https://kanterella.com/05000312/LER-2D1986-2D006-2C_-3Aon_860414-2Cfailure_to_Implement_Fire_Protection_Deluge_Sys_3-2Dyr_Flow_Test_Identified.Caused_by_Confusion_Over_Tech_Spec_Requirements.Spray_Sys…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-006, :on 860414,failure to Implement Fire Protection Deluge Sys 3-yr Flow Test Identified.Caused by Confusion Over Tech Spec Requirements.Spray Sys Reviewed.Procedures Reviewed for mods.Cross-reference List Revised

LER-1987-007, :on 870117,power Supply Cutoff on High Current to Bailey 885 Auxiliary Relay Module Lamp Occurred.Caused by Power Supply Short Circuit.Engineering Change Notice Written to Reverse Wiring to Lamp Sockets
type: Subject
label: 05000312/LER-1987-007, :on 870117,power Supply Cutoff on High Current to Bailey 885 Auxiliary Relay Module Lamp Occurred.Caused by Power Supply Short Circuit.Engineering Change Notice Written to Reverse Wiring to Lamp Sockets
page: https://kanterella.com/05000312/LER-2D1987-2D007-2C_-3Aon_870117-2Cpower_Supply_Cutoff_on_High_Current_to_Bailey_885_Auxiliary_Relay_Module_Lamp_Occurred.Caused_by_Power_Supply_Short_Circuit.Engineeri…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1987-007, :on 870117,power Supply Cutoff on High Current to Bailey 885 Auxiliary Relay Module Lamp Occurred.Caused by Power Supply Short Circuit.Engineering Change Notice Written to Reverse Wiring to Lamp Sockets

LER-1985-001-01, :on 850116,hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency, Inadequate Operating Procedure & Inadequate Panel Design. Procedure Revised & Cover Panel Added
type: Subject
label: 05000312/LER-1985-001-01, :on 850116,hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency, Inadequate Operating Procedure & Inadequate Panel Design. Procedure Revised & Cover Panel Added
page: https://kanterella.com/05000312/LER-2D1985-2D001-2D01-2C_-3Aon_850116-2Chydrogen_Monitor_Sys_Containment_Isolation_Valves_Open.Caused_by_Tagging_Inconsistency-2C_Inadequate_Operating_Procedure_-26_Ina…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-001-01, :on 850116,hydrogen Monitor Sys Containment Isolation Valves Open.Caused by Tagging Inconsistency, Inadequate Operating Procedure & Inadequate Panel Design. Procedure Revised & Cover Panel Added

LER-1986-018, :on 860717,determined That Control Room Did Not Implement Compensatory Fire Protection Measures When Smoke Detectors Disabled for Welding Operations.Caused by Communication Problems.Memo Issued
type: Subject
label: 05000312/LER-1986-018, :on 860717,determined That Control Room Did Not Implement Compensatory Fire Protection Measures When Smoke Detectors Disabled for Welding Operations.Caused by Communication Problems.Memo Issued
page: https://kanterella.com/05000312/LER-2D1986-2D018-2C_-3Aon_860717-2Cdetermined_That_Control_Room_Did_Not_Implement_Compensatory_Fire_Protection_Measures_When_Smoke_Detectors_Disabled_for_Welding_Operat…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-018, :on 860717,determined That Control Room Did Not Implement Compensatory Fire Protection Measures When Smoke Detectors Disabled for Welding Operations.Caused by Communication Problems.Memo Issued

LER-1986-008, :on 860429,continuous Fire Watch for Breached Penetration Not Posted.Caused by Personnel Error.Training Program Being Conducted to Ensure All Fire Protection Group Members Trained in Fire Watch Requirements
type: Subject
label: 05000312/LER-1986-008, :on 860429,continuous Fire Watch for Breached Penetration Not Posted.Caused by Personnel Error.Training Program Being Conducted to Ensure All Fire Protection Group Members Trained in Fire Watch Requirements
page: https://kanterella.com/05000312/LER-2D1986-2D008-2C_-3Aon_860429-2Ccontinuous_Fire_Watch_for_Breached_Penetration_Not_Posted.Caused_by_Personnel_Error.Training_Program_Being_Conducted_to_Ensure_All_Fi…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-008, :on 860429,continuous Fire Watch for Breached Penetration Not Posted.Caused by Personnel Error.Training Program Being Conducted to Ensure All Fire Protection Group Members Trained in Fire Watch Requirements

01T-0:on 781024,operability of a Diesel Generator Lost Due to Failure of Primary Fuses on the Voltage Regulators Control Power Circuit.Fuses Replaced,A Generator Tested Then Returned to Svc
type: Subject
label: 05000312/LER-1978-016-01, /01T-0:on 781024,operability of a Diesel Generator Lost Due to Failure of Primary Fuses on the Voltage Regulators Control Power Circuit.Fuses Replaced,A Generator Tested Then Returned to Svc
page: https://kanterella.com/05000312/LER-2D1978-2D016-2D01-2C_/01T-2D0-3Aon_781024-2Coperability_of_a_Diesel_Generator_Lost_Due_to_Failure_of_Primary_Fuses_on_the_Voltage_Regulators_Control_Power_Circuit.F…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-016-01, /01T-0:on 781024,operability of a Diesel Generator Lost Due to Failure of Primary Fuses on the Voltage Regulators Control Power Circuit.Fuses Replaced,A Generator Tested Then Returned to Svc

Breaker Racked Out.Caused by Lack of Administrative Control.Process Sampling Procedures & Operator Training Upgraded
type: Subject
label: 05000312/LER-1985-022, :on 851120,pressurized Sampling Valve HV-21516 Found in Open Position W/Breaker Racked Out.Caused by Lack of Administrative Control.Process Sampling Procedures & Operator Training Upgraded
page: https://kanterella.com/05000312/LER-2D1985-2D022-2C_-3Aon_851120-2Cpressurized_Sampling_Valve_HV-2D21516_Found_in_Open_Position_W/Breaker_Racked_Out.Caused_by_Lack_of_Administrative_Control.Process_Sa…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-022, :on 851120,pressurized Sampling Valve HV-21516 Found in Open Position W/Breaker Racked Out.Caused by Lack of Administrative Control.Process Sampling Procedures & Operator Training Upgraded

01T-0:on 781120,failure of 9 Bergen-Patterson Snubbers.Seven of 9 Failures Caused by Abusive Handling During Reinstallation Following 1977 Testing.Other Two Failures Isolated Cases.Failed Units Repaired
type: Subject
label: 05000312/LER-1978-015-01, /01T-0:on 781120,failure of 9 Bergen-Patterson Snubbers.Seven of 9 Failures Caused by Abusive Handling During Reinstallation Following 1977 Testing.Other Two Failures Isolated Cases.Failed Units Repaired
page: https://kanterella.com/05000312/LER-2D1978-2D015-2D01-2C_/01T-2D0-3Aon_781120-2Cfailure_of_9_Bergen-2DPatterson_Snubbers.Seven_of_9_Failures_Caused_by_Abusive_Handling_During_Reinstallation_Following_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-015-01, /01T-0:on 781120,failure of 9 Bergen-Patterson Snubbers.Seven of 9 Failures Caused by Abusive Handling During Reinstallation Following 1977 Testing.Other Two Failures Isolated Cases.Failed Units Repaired

01T-0:on 801031,IE Bulletin 79-01B Review Determined That No Qualification Documentation Available for Pressure Switches Utilized in Main Steam Sys.Cause Not Stated.New Sys Will Be Installed or Old Switches Replaced
type: Subject
label: 05000312/LER-1980-044-01, /01T-0:on 801031,IE Bulletin 79-01B Review Determined That No Qualification Documentation Available for Pressure Switches Utilized in Main Steam Sys.Cause Not Stated.New Sys Will Be Installed or Old Switches Replaced
page: https://kanterella.com/05000312/LER-2D1980-2D044-2D01-2C_/01T-2D0-3Aon_801031-2CIE_Bulletin_79-2D01B_Review_Determined_That_No_Qualification_Documentation_Available_for_Pressure_Switches_Utilized_in_M…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-044-01, /01T-0:on 801031,IE Bulletin 79-01B Review Determined That No Qualification Documentation Available for Pressure Switches Utilized in Main Steam Sys.Cause Not Stated.New Sys Will Be Installed or Old Switches Replaced

Purge Valves & Recommended Limiting Valve Opening to Max of 60 Degrees Because Excess of 60 Degrees Could Cause Shaft Torsional Rating to Be Extended
type: Subject
label: 05000312/LER-1979-022-01, /01T-0:on 791217,Allis Chalmers Informed Util of Potential Problem W/Purge Valves & Recommended Limiting Valve Opening to Max of 60 Degrees Because Excess of 60 Degrees Could Cause Shaft Torsional Rating to Be Extended
page: https://kanterella.com/05000312/LER-2D1979-2D022-2D01-2C_/01T-2D0-3Aon_791217-2CAllis_Chalmers_Informed_Util_of_Potential_Problem_W/Purge_Valves_-26_Recommended_Limiting_Valve_Opening_to_Max_of_60_Deg…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-022-01, /01T-0:on 791217,Allis Chalmers Informed Util of Potential Problem W/Purge Valves & Recommended Limiting Valve Opening to Max of 60 Degrees Because Excess of 60 Degrees Could Cause Shaft Torsional Rating to Be Extended

liter Typical of Stagnant Water.Location Is Beyond Util Propert
type: Subject
label: 05000312/LER-1978-003-04, /04T-0:on 780913,during Steady State Operation, Dissolved Oxygen Concentration Downstream of Confluence of Hadselville & Clay Creek Was Less than Minimum of 5mg/liter Typical of Stagnant Water.Location Is Beyond Util Propert
page: https://kanterella.com/05000312/LER-2D1978-2D003-2D04-2C_/04T-2D0-3Aon_780913-2Cduring_Steady_State_Operation-2C_Dissolved_Oxygen_Concentration_Downstream_of_Confluence_of_Hadselville_-26_Clay_Creek_W…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-003-04, /04T-0:on 780913,during Steady State Operation, Dissolved Oxygen Concentration Downstream of Confluence of Hadselville & Clay Creek Was Less than Minimum of 5mg/liter Typical of Stagnant Water.Location Is Beyond Util Propert

Main Isolation Valve Controller
type: Subject
label: 05000312/LER-1978-012-03, /03L-0:on 780927,header Failed to Discharge During Routine Testing of CO2 Sys.Caused by Defective Microswitch on Solenoid Which Operates Pilot Valve Integral W/Main Isolation Valve Controller
page: https://kanterella.com/05000312/LER-2D1978-2D012-2D03-2C_/03L-2D0-3Aon_780927-2Cheader_Failed_to_Discharge_During_Routine_Testing_of_CO2_Sys.Caused_by_Defective_Microswitch_on_Solenoid_Which_Operates_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-012-03, /03L-0:on 780927,header Failed to Discharge During Routine Testing of CO2 Sys.Caused by Defective Microswitch on Solenoid Which Operates Pilot Valve Integral W/Main Isolation Valve Controller

03L-0:on 780913,diesel Driven Fire Pump P-996 Tripped on Overspeed During test.Engine-to-pump Coupling Bolts Were Discovered to Be Sheared,Probably Due to Overtorquing.Bolts Were Replaced,Torque Values Verified
type: Subject
label: 05000312/LER-1978-009-03, /03L-0:on 780913,diesel Driven Fire Pump P-996 Tripped on Overspeed During test.Engine-to-pump Coupling Bolts Were Discovered to Be Sheared,Probably Due to Overtorquing.Bolts Were Replaced,Torque Values Verified
page: https://kanterella.com/05000312/LER-2D1978-2D009-2D03-2C_/03L-2D0-3Aon_780913-2Cdiesel_Driven_Fire_Pump_P-2D996_Tripped_on_Overspeed_During_test.Engine-2Dto-2Dpump_Coupling_Bolts_Were_Discovered_to_Be…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-009-03, /03L-0:on 780913,diesel Driven Fire Pump P-996 Tripped on Overspeed During test.Engine-to-pump Coupling Bolts Were Discovered to Be Sheared,Probably Due to Overtorquing.Bolts Were Replaced,Torque Values Verified

03L-0:on 780925,HPI Loop a Flow Transmitter FT-23807 Found Inoperable During Surveillance Procedure 200.14.Caused by Broken Bellows in Flow Transmitter.Failed Bellows Replaced
type: Subject
label: 05000312/LER-1978-013-03, /03L-0:on 780925,HPI Loop a Flow Transmitter FT-23807 Found Inoperable During Surveillance Procedure 200.14.Caused by Broken Bellows in Flow Transmitter.Failed Bellows Replaced
page: https://kanterella.com/05000312/LER-2D1978-2D013-2D03-2C_/03L-2D0-3Aon_780925-2CHPI_Loop_a_Flow_Transmitter_FT-2D23807_Found_Inoperable_During_Surveillance_Procedure_200.14.Caused_by_Broken_Bellows_in…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-013-03, /03L-0:on 780925,HPI Loop a Flow Transmitter FT-23807 Found Inoperable During Surveillance Procedure 200.14.Caused by Broken Bellows in Flow Transmitter.Failed Bellows Replaced

Min.Caused by Leaking Pressure Safety Valves & Block Valve on Electromatic Relief Valve.Valves Replaced or Reworked
type: Subject
label: 05000312/LER-1978-006-03, /03L-0:on 780611,during Normal Operation,Increased Leakage Noticed,Between 1.1-1.7 Gallons/Min.Caused by Leaking Pressure Safety Valves & Block Valve on Electromatic Relief Valve.Valves Replaced or Reworked
page: https://kanterella.com/05000312/LER-2D1978-2D006-2D03-2C_/03L-2D0-3Aon_780611-2Cduring_Normal_Operation-2CIncreased_Leakage_Noticed-2CBetween_1.1-2D1.7_Gallons/Min.Caused_by_Leaking_Pressure_Safety_Va…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-006-03, /03L-0:on 780611,during Normal Operation,Increased Leakage Noticed,Between 1.1-1.7 Gallons/Min.Caused by Leaking Pressure Safety Valves & Block Valve on Electromatic Relief Valve.Valves Replaced or Reworked

LER-1986-001, :on 860121,diesel Generator G-886B Declared Inoperable Due to Fuel Inlet Pressure Above Limits Specified in Process Stds.Safety Functions Performed.New Spare Parts Ordered for Generator
type: Subject
label: 05000312/LER-1986-001, :on 860121,diesel Generator G-886B Declared Inoperable Due to Fuel Inlet Pressure Above Limits Specified in Process Stds.Safety Functions Performed.New Spare Parts Ordered for Generator
page: https://kanterella.com/05000312/LER-2D1986-2D001-2C_-3Aon_860121-2Cdiesel_Generator_G-2D886B_Declared_Inoperable_Due_to_Fuel_Inlet_Pressure_Above_Limits_Specified_in_Process_Stds.Safety_Functions_Perf…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-001, :on 860121,diesel Generator G-886B Declared Inoperable Due to Fuel Inlet Pressure Above Limits Specified in Process Stds.Safety Functions Performed.New Spare Parts Ordered for Generator

LER-1986-004, :on 860215,review of Fire Door Refueling Interval Surveillance Test Results Revealed That Fire Doors Determined to Be Inoperable & Fire Watches Not Posted within 1 H.Caused by Personnel Error.Watches Posted
type: Subject
label: 05000312/LER-1986-004, :on 860215,review of Fire Door Refueling Interval Surveillance Test Results Revealed That Fire Doors Determined to Be Inoperable & Fire Watches Not Posted within 1 H.Caused by Personnel Error.Watches Posted
page: https://kanterella.com/05000312/LER-2D1986-2D004-2C_-3Aon_860215-2Creview_of_Fire_Door_Refueling_Interval_Surveillance_Test_Results_Revealed_That_Fire_Doors_Determined_to_Be_Inoperable_-26_Fire_Watche…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-004, :on 860215,review of Fire Door Refueling Interval Surveillance Test Results Revealed That Fire Doors Determined to Be Inoperable & Fire Watches Not Posted within 1 H.Caused by Personnel Error.Watches Posted

LER-1986-003, :on 860314,while Attempting to Perform Calibr on Reactor Bldg Exhaust Monitor R15001 Sample Flow Meter, Containment Purge Went Unmonitored for 50 Minutes.Control Room Operator Counseled
type: Subject
label: 05000312/LER-1986-003, :on 860314,while Attempting to Perform Calibr on Reactor Bldg Exhaust Monitor R15001 Sample Flow Meter, Containment Purge Went Unmonitored for 50 Minutes.Control Room Operator Counseled
page: https://kanterella.com/05000312/LER-2D1986-2D003-2C_-3Aon_860314-2Cwhile_Attempting_to_Perform_Calibr_on_Reactor_Bldg_Exhaust_Monitor_R15001_Sample_Flow_Meter-2C_Containment_Purge_Went_Unmonitored_for…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1986-003, :on 860314,while Attempting to Perform Calibr on Reactor Bldg Exhaust Monitor R15001 Sample Flow Meter, Containment Purge Went Unmonitored for 50 Minutes.Control Room Operator Counseled

LER-1985-024, :on 851222,RCS Leakage Calculated to Be Between 15 & 20 Gallons Per Minute.Shutdown Initiated.Caused by Leaking Packing Gland SFV-70001.Gland Disassembled & Inspected.Twelve Rings of Packing Added
type: Subject
label: 05000312/LER-1985-024, :on 851222,RCS Leakage Calculated to Be Between 15 & 20 Gallons Per Minute.Shutdown Initiated.Caused by Leaking Packing Gland SFV-70001.Gland Disassembled & Inspected.Twelve Rings of Packing Added
page: https://kanterella.com/05000312/LER-2D1985-2D024-2C_-3Aon_851222-2CRCS_Leakage_Calculated_to_Be_Between_15_-26_20_Gallons_Per_Minute.Shutdown_Initiated.Caused_by_Leaking_Packing_Gland_SFV-2D70001.Glan…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-024, :on 851222,RCS Leakage Calculated to Be Between 15 & 20 Gallons Per Minute.Shutdown Initiated.Caused by Leaking Packing Gland SFV-70001.Gland Disassembled & Inspected.Twelve Rings of Packing Added

LER-1985-021, :on 851119,emergency Diesel Generator a Automatically Started When Bus 4A Normal Supply Breaker Tripped on Overvoltage Condition.Caused by Technicians Disconnecting Ground Wiring
type: Subject
label: 05000312/LER-1985-021, :on 851119,emergency Diesel Generator a Automatically Started When Bus 4A Normal Supply Breaker Tripped on Overvoltage Condition.Caused by Technicians Disconnecting Ground Wiring
page: https://kanterella.com/05000312/LER-2D1985-2D021-2C_-3Aon_851119-2Cemergency_Diesel_Generator_a_Automatically_Started_When_Bus_4A_Normal_Supply_Breaker_Tripped_on_Overvoltage_Condition.Caused_by_Techn…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-021, :on 851119,emergency Diesel Generator a Automatically Started When Bus 4A Normal Supply Breaker Tripped on Overvoltage Condition.Caused by Technicians Disconnecting Ground Wiring

LER-1985-019, :on 851002,reactor Trip Occurred & RCS Temp Decreased to Approx 70 F.Caused by Excessive Steam Loads Due to Two Open Relief Valves on Feedwater Heater 4A.HPI Flow Manually Initiated to Maintain Pressure
type: Subject
label: 05000312/LER-1985-019, :on 851002,reactor Trip Occurred & RCS Temp Decreased to Approx 70 F.Caused by Excessive Steam Loads Due to Two Open Relief Valves on Feedwater Heater 4A.HPI Flow Manually Initiated to Maintain Pressure
page: https://kanterella.com/05000312/LER-2D1985-2D019-2C_-3Aon_851002-2Creactor_Trip_Occurred_-26_RCS_Temp_Decreased_to_Approx_70_F.Caused_by_Excessive_Steam_Loads_Due_to_Two_Open_Relief_Valves_on_Feedwate…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-019, :on 851002,reactor Trip Occurred & RCS Temp Decreased to Approx 70 F.Caused by Excessive Steam Loads Due to Two Open Relief Valves on Feedwater Heater 4A.HPI Flow Manually Initiated to Maintain Pressure

Technical Support Ctr Essential HVAC Filtration Units Malfunctioning. Caused by Design Error.Correction Made
type: Subject
label: 05000312/LER-1985-020, :on 851007,internal Occurrence Description Rept Indicated That Flow Controllers for Control Room/Technical Support Ctr Essential HVAC Filtration Units Malfunctioning. Caused by Design Error.Correction Made
page: https://kanterella.com/05000312/LER-2D1985-2D020-2C_-3Aon_851007-2Cinternal_Occurrence_Description_Rept_Indicated_That_Flow_Controllers_for_Control_Room/Technical_Support_Ctr_Essential_HVAC_Filtration…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-020, :on 851007,internal Occurrence Description Rept Indicated That Flow Controllers for Control Room/Technical Support Ctr Essential HVAC Filtration Units Malfunctioning. Caused by Design Error.Correction Made

LER-1984-016, :on 840425,RCS Pump Seal Return Line Isolation Valve Exceeded Tech Spec Stroke Time Limit.Caused by Weaknesses in Documentation & Surveillances of Equipment. Valve Restroked.Surveillance Procedure Revised
type: Subject
label: 05000312/LER-1984-016, :on 840425,RCS Pump Seal Return Line Isolation Valve Exceeded Tech Spec Stroke Time Limit.Caused by Weaknesses in Documentation & Surveillances of Equipment. Valve Restroked.Surveillance Procedure Revised
page: https://kanterella.com/05000312/LER-2D1984-2D016-2C_-3Aon_840425-2CRCS_Pump_Seal_Return_Line_Isolation_Valve_Exceeded_Tech_Spec_Stroke_Time_Limit.Caused_by_Weaknesses_in_Documentation_-26_Surveillance…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1984-016, :on 840425,RCS Pump Seal Return Line Isolation Valve Exceeded Tech Spec Stroke Time Limit.Caused by Weaknesses in Documentation & Surveillances of Equipment. Valve Restroked.Surveillance Procedure Revised

LER-1985-023, :on 851205,reactor Trip Occurred on High RCS Pressure.Caused by Underfeeding of Main Feedwater Sys During Flow Scaling Procedure.Integrated Control Sys Modules Examined & Refurbished
type: Subject
label: 05000312/LER-1985-023, :on 851205,reactor Trip Occurred on High RCS Pressure.Caused by Underfeeding of Main Feedwater Sys During Flow Scaling Procedure.Integrated Control Sys Modules Examined & Refurbished
page: https://kanterella.com/05000312/LER-2D1985-2D023-2C_-3Aon_851205-2Creactor_Trip_Occurred_on_High_RCS_Pressure.Caused_by_Underfeeding_of_Main_Feedwater_Sys_During_Flow_Scaling_Procedure.Integrated_Cont…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-023, :on 851205,reactor Trip Occurred on High RCS Pressure.Caused by Underfeeding of Main Feedwater Sys During Flow Scaling Procedure.Integrated Control Sys Modules Examined & Refurbished

LER-1984-020, :on 840703,tube Leak Experienced in once- Through Steam Generator B.During Cooldown,Unplanned Reactor Trip Occurred on Low RCS Pressure.Caused by Through Wall Defect at 15th Tube Support Plate
type: Subject
label: 05000312/LER-1984-020, :on 840703,tube Leak Experienced in once- Through Steam Generator B.During Cooldown,Unplanned Reactor Trip Occurred on Low RCS Pressure.Caused by Through Wall Defect at 15th Tube Support Plate
page: https://kanterella.com/05000312/LER-2D1984-2D020-2C_-3Aon_840703-2Ctube_Leak_Experienced_in_once-2D_Through_Steam_Generator_B.During_Cooldown-2CUnplanned_Reactor_Trip_Occurred_on_Low_RCS_Pressure.Caus…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1984-020, :on 840703,tube Leak Experienced in once- Through Steam Generator B.During Cooldown,Unplanned Reactor Trip Occurred on Low RCS Pressure.Caused by Through Wall Defect at 15th Tube Support Plate

LER-1984-019, :on 840608,Tech Specs Violated When Diesel Generators No Longer in Ambient State Prior to Tests Being Performed.Caused by Rev to Procedures EM.177A & B.Maint Startup Deleted from Procedures
type: Subject
label: 05000312/LER-1984-019, :on 840608,Tech Specs Violated When Diesel Generators No Longer in Ambient State Prior to Tests Being Performed.Caused by Rev to Procedures EM.177A & B.Maint Startup Deleted from Procedures
page: https://kanterella.com/05000312/LER-2D1984-2D019-2C_-3Aon_840608-2CTech_Specs_Violated_When_Diesel_Generators_No_Longer_in_Ambient_State_Prior_to_Tests_Being_Performed.Caused_by_Rev_to_Procedures_EM.1…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1984-019, :on 840608,Tech Specs Violated When Diesel Generators No Longer in Ambient State Prior to Tests Being Performed.Caused by Rev to Procedures EM.177A & B.Maint Startup Deleted from Procedures

LER-1985-015, :on 850716,electrician Working in Switchgear Area Accidently Tripped Nuclear Svcs Bus 4B2,causing Emergency Diesel Generator B to Automatically Start.Caused by Loose Terminal Board Connections
type: Subject
label: 05000312/LER-1985-015, :on 850716,electrician Working in Switchgear Area Accidently Tripped Nuclear Svcs Bus 4B2,causing Emergency Diesel Generator B to Automatically Start.Caused by Loose Terminal Board Connections
page: https://kanterella.com/05000312/LER-2D1985-2D015-2C_-3Aon_850716-2Celectrician_Working_in_Switchgear_Area_Accidently_Tripped_Nuclear_Svcs_Bus_4B2-2Ccausing_Emergency_Diesel_Generator_B_to_Automaticall…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-015, :on 850716,electrician Working in Switchgear Area Accidently Tripped Nuclear Svcs Bus 4B2,causing Emergency Diesel Generator B to Automatically Start.Caused by Loose Terminal Board Connections

05000312/LER-1985-017, :on 850906,leakage Flow Path Reported in Filtration Unit of Auxiliary Bldg a Ventilation Unit.Caused by Omission of Seal Plate During Mfg.Steel Plate Welded Over Bypass Opening
type: Subject
page: https://kanterella.com/05000312/LER-2D1985-2D017-2C_-3Aon_850906-2Cleakage_Flow_Path_Reported_in_Filtration_Unit_of_Auxiliary_Bldg_a_Ventilation_Unit.Caused_by_Omission_of_Seal_Plate_During_Mfg.Steel_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-017, :on 850906,leakage Flow Path Reported in Filtration Unit of Auxiliary Bldg a Ventilation Unit.Caused by Omission of Seal Plate During Mfg.Steel Plate Welded Over Bypass Opening

Minute Allowable Per Tech Spec 4.5.3.1 Observed at Pump Seal.Seal Replaced & Sys Adequately Tested
type: Subject
label: 05000312/LER-1979-008-03, /03L-0:on 790719,while Performing Monthly Pump Surveillance on B Decay Heat Removal Pump,Leakage in Excess of 0.63 Gallons/Minute Allowable Per Tech Spec 4.5.3.1 Observed at Pump Seal.Seal Replaced & Sys Adequately Tested
page: https://kanterella.com/05000312/LER-2D1979-2D008-2D03-2C_/03L-2D0-3Aon_790719-2Cwhile_Performing_Monthly_Pump_Surveillance_on_B_Decay_Heat_Removal_Pump-2CLeakage_in_Excess_of_0.63_Gallons/Minute_Allow…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-008-03, /03L-0:on 790719,while Performing Monthly Pump Surveillance on B Decay Heat Removal Pump,Leakage in Excess of 0.63 Gallons/Minute Allowable Per Tech Spec 4.5.3.1 Observed at Pump Seal.Seal Replaced & Sys Adequately Tested

LER-1985-005, :on 850420,valve BWS-041 in Boration Path Closed During Fuel Movement.Caused by Procedural Error. Procedure B.8 Revised to Require Clearance Tag to Be Placed on BWS-041 After Opening During Refueling
type: Subject
label: 05000312/LER-1985-005, :on 850420,valve BWS-041 in Boration Path Closed During Fuel Movement.Caused by Procedural Error. Procedure B.8 Revised to Require Clearance Tag to Be Placed on BWS-041 After Opening During Refueling
page: https://kanterella.com/05000312/LER-2D1985-2D005-2C_-3Aon_850420-2Cvalve_BWS-2D041_in_Boration_Path_Closed_During_Fuel_Movement.Caused_by_Procedural_Error._Procedure_B.8_Revised_to_Require_Clearance_T…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-005, :on 850420,valve BWS-041 in Boration Path Closed During Fuel Movement.Caused by Procedural Error. Procedure B.8 Revised to Require Clearance Tag to Be Placed on BWS-041 After Opening During Refueling

LER-1985-008, :on 850521,portion of Surveillance Procedure Sp 301.03k Re Accessible Cable Tray Fire Barriers Discovered Not Performed within Specified Interval.Caused by Incorrect Date Listed for Previous Surveillance
type: Subject
label: 05000312/LER-1985-008, :on 850521,portion of Surveillance Procedure Sp 301.03k Re Accessible Cable Tray Fire Barriers Discovered Not Performed within Specified Interval.Caused by Incorrect Date Listed for Previous Surveillance
page: https://kanterella.com/05000312/LER-2D1985-2D008-2C_-3Aon_850521-2Cportion_of_Surveillance_Procedure_Sp_301.03k_Re_Accessible_Cable_Tray_Fire_Barriers_Discovered_Not_Performed_within_Specified_Interva…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1985-008, :on 850521,portion of Surveillance Procedure Sp 301.03k Re Accessible Cable Tray Fire Barriers Discovered Not Performed within Specified Interval.Caused by Incorrect Date Listed for Previous Surveillance

Dc Air Start Sys Noted.Probably Caused by Natural end-of-life for Flexible Synthetic Rubber Line. Line Replaced
type: Subject
label: 05000312/LER-1980-013-03, /03L-0:on 800218,following Biannual Insp of Diesel Generator B,Problem W/Dc Air Start Sys Noted.Probably Caused by Natural end-of-life for Flexible Synthetic Rubber Line. Line Replaced
page: https://kanterella.com/05000312/LER-2D1980-2D013-2D03-2C_/03L-2D0-3Aon_800218-2Cfollowing_Biannual_Insp_of_Diesel_Generator_B-2CProblem_W/Dc_Air_Start_Sys_Noted.Probably_Caused_by_Natural_end-2Dof-2Dl…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-013-03, /03L-0:on 800218,following Biannual Insp of Diesel Generator B,Problem W/Dc Air Start Sys Noted.Probably Caused by Natural end-of-life for Flexible Synthetic Rubber Line. Line Replaced

03L-0:on 800219,while Moving Aris Calibr Block, Sling Failed & 3,000 Lb Block Fell Into Flange Transfer Canal.Caused by Inadequate Sling Utilized for Lift.Speed Change Problem Corrected
type: Subject
label: 05000312/LER-1980-014-03, /03L-0:on 800219,while Moving Aris Calibr Block, Sling Failed & 3,000 Lb Block Fell Into Flange Transfer Canal.Caused by Inadequate Sling Utilized for Lift.Speed Change Problem Corrected
page: https://kanterella.com/05000312/LER-2D1980-2D014-2D03-2C_/03L-2D0-3Aon_800219-2Cwhile_Moving_Aris_Calibr_Block-2C_Sling_Failed_-26_3-2C000_Lb_Block_Fell_Into_Flange_Transfer_Canal.Caused_by_Inadequate…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-014-03, /03L-0:on 800219,while Moving Aris Calibr Block, Sling Failed & 3,000 Lb Block Fell Into Flange Transfer Canal.Caused by Inadequate Sling Utilized for Lift.Speed Change Problem Corrected

03L-0:on 791217,during Normal Operation,Hpi Pump B Taken Out of Svc.On 800109,discovered That Cooling Water Supply Valves Were Isolated.Caused by Removal of HPI Pump B from Svc.Pump B Returned to Svc & Placed on Standby
type: Subject
label: 05000312/LER-1979-024-03, /03L-0:on 791217,during Normal Operation,Hpi Pump B Taken Out of Svc.On 800109,discovered That Cooling Water Supply Valves Were Isolated.Caused by Removal of HPI Pump B from Svc.Pump B Returned to Svc & Placed on Standby
page: https://kanterella.com/05000312/LER-2D1979-2D024-2D03-2C_/03L-2D0-3Aon_791217-2Cduring_Normal_Operation-2CHpi_Pump_B_Taken_Out_of_Svc.On_800109-2Cdiscovered_That_Cooling_Water_Supply_Valves_Were_Isola…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-024-03, /03L-0:on 791217,during Normal Operation,Hpi Pump B Taken Out of Svc.On 800109,discovered That Cooling Water Supply Valves Were Isolated.Caused by Removal of HPI Pump B from Svc.Pump B Returned to Svc & Placed on Standby

03L-0:on 820619,pressurizer Liquid Sample Valve, SFV-70001,opened Properly But Failed to Close Properly on Command.Caused by Ax Relay Not Responding to Close Command. Relay Replaced
type: Subject
label: 05000312/LER-1982-014-03, /03L-0:on 820619,pressurizer Liquid Sample Valve, SFV-70001,opened Properly But Failed to Close Properly on Command.Caused by Ax Relay Not Responding to Close Command. Relay Replaced
page: https://kanterella.com/05000312/LER-2D1982-2D014-2D03-2C_/03L-2D0-3Aon_820619-2Cpressurizer_Liquid_Sample_Valve-2C_SFV-2D70001-2Copened_Properly_But_Failed_to_Close_Properly_on_Command.Caused_by_Ax_Re…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-014-03, /03L-0:on 820619,pressurizer Liquid Sample Valve, SFV-70001,opened Properly But Failed to Close Properly on Command.Caused by Ax Relay Not Responding to Close Command. Relay Replaced

04T-0:on 820607,during Chlorination of Nuclear Svc Spray Pond,Spray Pond Filters Went Into Backwash Mode. Cause Not Stated.Several Fish in Discharge Stream Killed Due to Excessive Chlorine.Chlorine Injection Point to Be Mov
type: Subject
label: 05000312/LER-1982-013-04, /04T-0:on 820607,during Chlorination of Nuclear Svc Spray Pond,Spray Pond Filters Went Into Backwash Mode. Cause Not Stated.Several Fish in Discharge Stream Killed Due to Excessive Chlorine.Chlorine Injection Point to Be Mov
page: https://kanterella.com/05000312/LER-2D1982-2D013-2D04-2C_/04T-2D0-3Aon_820607-2Cduring_Chlorination_of_Nuclear_Svc_Spray_Pond-2CSpray_Pond_Filters_Went_Into_Backwash_Mode._Cause_Not_Stated.Several_Fis…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-013-04, /04T-0:on 820607,during Chlorination of Nuclear Svc Spray Pond,Spray Pond Filters Went Into Backwash Mode. Cause Not Stated.Several Fish in Discharge Stream Killed Due to Excessive Chlorine.Chlorine Injection Point to Be Mov

03L-0:on 820505,during Cold Shutdown,A Decay Heat Pump Inboard Bearing Found Leaking Oil.Cause of Leak Undetermined.Probable Cause Due to Partial Seal Failure.Leak Will Be Repaired
type: Subject
label: 05000312/LER-1982-012-03, /03L-0:on 820505,during Cold Shutdown,A Decay Heat Pump Inboard Bearing Found Leaking Oil.Cause of Leak Undetermined.Probable Cause Due to Partial Seal Failure.Leak Will Be Repaired
page: https://kanterella.com/05000312/LER-2D1982-2D012-2D03-2C_/03L-2D0-3Aon_820505-2Cduring_Cold_Shutdown-2CA_Decay_Heat_Pump_Inboard_Bearing_Found_Leaking_Oil.Cause_of_Leak_Undetermined.Probable_Cause_Due…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-012-03, /03L-0:on 820505,during Cold Shutdown,A Decay Heat Pump Inboard Bearing Found Leaking Oil.Cause of Leak Undetermined.Probable Cause Due to Partial Seal Failure.Leak Will Be Repaired

01T-1:on 820419,insp of B once-through Steam Generator Auxiliary Feedwater Header Ring & a Ring on 820420 Revealed Deformations.Mod Work to Correct Problem Partially Scheduled.Old Header Will Be Stabilized
type: Subject
label: 05000312/LER-1982-010-01, /01T-1:on 820419,insp of B once-through Steam Generator Auxiliary Feedwater Header Ring & a Ring on 820420 Revealed Deformations.Mod Work to Correct Problem Partially Scheduled.Old Header Will Be Stabilized
page: https://kanterella.com/05000312/LER-2D1982-2D010-2D01-2C_/01T-2D1-3Aon_820419-2Cinsp_of_B_once-2Dthrough_Steam_Generator_Auxiliary_Feedwater_Header_Ring_-26_a_Ring_on_820420_Revealed_Deformations.Mod_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-010-01, /01T-1:on 820419,insp of B once-through Steam Generator Auxiliary Feedwater Header Ring & a Ring on 820420 Revealed Deformations.Mod Work to Correct Problem Partially Scheduled.Old Header Will Be Stabilized

05000312/LER-1982-011-03, /03L-0:on 820415,check Valve CBS-022 on B Tank Supply to B Pump Found Stuck Closed.Caused by Chemical Deposit Buildup.Check Valves Cleaned,Reground & Returned to Svc
type: Subject
page: https://kanterella.com/05000312/LER-2D1982-2D011-2D03-2C_/03L-2D0-3Aon_820415-2Ccheck_Valve_CBS-2D022_on_B_Tank_Supply_to_B_Pump_Found_Stuck_Closed.Caused_by_Chemical_Deposit_Buildup.Check_Valves_Clea…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-011-03, /03L-0:on 820415,check Valve CBS-022 on B Tank Supply to B Pump Found Stuck Closed.Caused by Chemical Deposit Buildup.Check Valves Cleaned,Reground & Returned to Svc

05000312/LER-1982-008-04, /04T-0:on 820121,plant Effluent Ph Found to Be High (8.6-8.7) for Approx 5 Minutes.Caused by Instrument Error.Rh & Delta TC Probes Replaced
type: Subject
page: https://kanterella.com/05000312/LER-2D1982-2D008-2D04-2C_/04T-2D0-3Aon_820121-2Cplant_Effluent_Ph_Found_to_Be_High_-288.6-2D8.7-29_for_Approx_5_Minutes.Caused_by_Instrument_Error.Rh_-26_Delta_TC_Probe…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-008-04, /04T-0:on 820121,plant Effluent Ph Found to Be High (8.6-8.7) for Approx 5 Minutes.Caused by Instrument Error.Rh & Delta TC Probes Replaced

03L-0:on 820211,B Diesel Generator Found Inoperable.Caused by Output Breaker lock-out Due to Reverse Power Trip.Relays Marked to Improve Identification of Flag Targets,Personnel Trained & lock-out Alarm Moved
type: Subject
label: 05000312/LER-1982-005-03, /03L-0:on 820211,B Diesel Generator Found Inoperable.Caused by Output Breaker lock-out Due to Reverse Power Trip.Relays Marked to Improve Identification of Flag Targets,Personnel Trained & lock-out Alarm Moved
page: https://kanterella.com/05000312/LER-2D1982-2D005-2D03-2C_/03L-2D0-3Aon_820211-2CB_Diesel_Generator_Found_Inoperable.Caused_by_Output_Breaker_lock-2Dout_Due_to_Reverse_Power_Trip.Relays_Marked_to_Impro…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-005-03, /03L-0:on 820211,B Diesel Generator Found Inoperable.Caused by Output Breaker lock-out Due to Reverse Power Trip.Relays Marked to Improve Identification of Flag Targets,Personnel Trained & lock-out Alarm Moved

01T-0:on 820301,B HPI Pump Found to Be Inoperable Due to Leaving Dc Charging Motion for Closing Spring in Unenergized State.Probably Caused by Personnel Error or Improper Procedure.Addl Training Provided
type: Subject
label: 05000312/LER-1982-003-01, /01T-0:on 820301,B HPI Pump Found to Be Inoperable Due to Leaving Dc Charging Motion for Closing Spring in Unenergized State.Probably Caused by Personnel Error or Improper Procedure.Addl Training Provided
page: https://kanterella.com/05000312/LER-2D1982-2D003-2D01-2C_/01T-2D0-3Aon_820301-2CB_HPI_Pump_Found_to_Be_Inoperable_Due_to_Leaving_Dc_Charging_Motion_for_Closing_Spring_in_Unenergized_State.Probably_Cau…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-003-01, /01T-0:on 820301,B HPI Pump Found to Be Inoperable Due to Leaving Dc Charging Motion for Closing Spring in Unenergized State.Probably Caused by Personnel Error or Improper Procedure.Addl Training Provided

04T-0:on 820305,during Review of Plant Effluent Records,Discovered That Ph Limit Was Exceeded on 820219. Caused by Sample Sys Configuration for Regenerate Hold Up Tank Discharging Into Plant Waste Stream.Sys Modified
type: Subject
label: 05000312/LER-1982-006-04, /04T-0:on 820305,during Review of Plant Effluent Records,Discovered That Ph Limit Was Exceeded on 820219. Caused by Sample Sys Configuration for Regenerate Hold Up Tank Discharging Into Plant Waste Stream.Sys Modified
page: https://kanterella.com/05000312/LER-2D1982-2D006-2D04-2C_/04T-2D0-3Aon_820305-2Cduring_Review_of_Plant_Effluent_Records-2CDiscovered_That_Ph_Limit_Was_Exceeded_on_820219._Caused_by_Sample_Sys_Configur…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-006-04, /04T-0:on 820305,during Review of Plant Effluent Records,Discovered That Ph Limit Was Exceeded on 820219. Caused by Sample Sys Configuration for Regenerate Hold Up Tank Discharging Into Plant Waste Stream.Sys Modified

01T-0:on 820130,both Doors on Airlock Opened Simultaneously Resulting in Loss of Containment Integrity. Caused by Personnel Error & Failure of Inner Door Mechanism to Latch Properly
type: Subject
label: 05000312/LER-1982-001-01, /01T-0:on 820130,both Doors on Airlock Opened Simultaneously Resulting in Loss of Containment Integrity. Caused by Personnel Error & Failure of Inner Door Mechanism to Latch Properly
page: https://kanterella.com/05000312/LER-2D1982-2D001-2D01-2C_/01T-2D0-3Aon_820130-2Cboth_Doors_on_Airlock_Opened_Simultaneously_Resulting_in_Loss_of_Containment_Integrity._Caused_by_Personnel_Error_-26_Fa…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-001-01, /01T-0:on 820130,both Doors on Airlock Opened Simultaneously Resulting in Loss of Containment Integrity. Caused by Personnel Error & Failure of Inner Door Mechanism to Latch Properly

03L-0:on 820209,reactor Protection Sys Channel C Pressure Transmitter Read 15 Psi High.Caused by Calibr of Transmitter During Artificial Cooling of Ambient Temp by Emergency Cooler.Input Buffer Amp Bias Changed
type: Subject
label: 05000312/LER-1982-004-03, /03L-0:on 820209,reactor Protection Sys Channel C Pressure Transmitter Read 15 Psi High.Caused by Calibr of Transmitter During Artificial Cooling of Ambient Temp by Emergency Cooler.Input Buffer Amp Bias Changed
page: https://kanterella.com/05000312/LER-2D1982-2D004-2D03-2C_/03L-2D0-3Aon_820209-2Creactor_Protection_Sys_Channel_C_Pressure_Transmitter_Read_15_Psi_High.Caused_by_Calibr_of_Transmitter_During_Artificial…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-004-03, /03L-0:on 820209,reactor Protection Sys Channel C Pressure Transmitter Read 15 Psi High.Caused by Calibr of Transmitter During Artificial Cooling of Ambient Temp by Emergency Cooler.Input Buffer Amp Bias Changed

04T-0:on 820305,monthly Review of Plant Effluent Records Revealed Plant Effuent Chlorine Limit Exceeded for Period of 2.5-hr on 820217.Caused by Analyst Failing to Take Sample at Site Boundary.Analysis Reinstructed
type: Subject
label: 05000312/LER-1982-007-04, /04T-0:on 820305,monthly Review of Plant Effluent Records Revealed Plant Effuent Chlorine Limit Exceeded for Period of 2.5-hr on 820217.Caused by Analyst Failing to Take Sample at Site Boundary.Analysis Reinstructed
page: https://kanterella.com/05000312/LER-2D1982-2D007-2D04-2C_/04T-2D0-3Aon_820305-2Cmonthly_Review_of_Plant_Effluent_Records_Revealed_Plant_Effuent_Chlorine_Limit_Exceeded_for_Period_of_2.5-2Dhr_on_820217…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-007-04, /04T-0:on 820305,monthly Review of Plant Effluent Records Revealed Plant Effuent Chlorine Limit Exceeded for Period of 2.5-hr on 820217.Caused by Analyst Failing to Take Sample at Site Boundary.Analysis Reinstructed

03L-0:on 820130,snubbers 1SW-21007-7 & 1SW-23823-13A Failed Visual Insps.Caused by Low Fuel Level. Snubber 1SW-21007-7 Rebuilt & Passed.Snubber 1SW-23823-13A Failed Until Bechtel Developed New Criteria
type: Subject
label: 05000312/LER-1982-002-03, /03L-0:on 820130,snubbers 1SW-21007-7 & 1SW-23823-13A Failed Visual Insps.Caused by Low Fuel Level. Snubber 1SW-21007-7 Rebuilt & Passed.Snubber 1SW-23823-13A Failed Until Bechtel Developed New Criteria
page: https://kanterella.com/05000312/LER-2D1982-2D002-2D03-2C_/03L-2D0-3Aon_820130-2Csnubbers_1SW-2D21007-2D7_-26_1SW-2D23823-2D13A_Failed_Visual_Insps.Caused_by_Low_Fuel_Level._Snubber_1SW-2D21007-2D7_Reb…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-002-03, /03L-0:on 820130,snubbers 1SW-21007-7 & 1SW-23823-13A Failed Visual Insps.Caused by Low Fuel Level. Snubber 1SW-21007-7 Rebuilt & Passed.Snubber 1SW-23823-13A Failed Until Bechtel Developed New Criteria

05000312/LER-1981-058-03, /03L-0:on 811221,repts Required by Tech Specs 4.2.8 Re Cumulative Reactor Utilization Factor Had Not Been Written Since Jul 1980.Generation Engineering Is Writing Rept
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D058-2D03-2C_/03L-2D0-3Aon_811221-2Crepts_Required_by_Tech_Specs_4.2.8_Re_Cumulative_Reactor_Utilization_Factor_Had_Not_Been_Written_Since_Jul_1980.Generati…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-058-03, /03L-0:on 811221,repts Required by Tech Specs 4.2.8 Re Cumulative Reactor Utilization Factor Had Not Been Written Since Jul 1980.Generation Engineering Is Writing Rept

01T-0:on 811211,instrument Technician Tested Instrumentation on Reactor Protective Sys Channel When Trip Sys Not Set Up to Retain Min Degree of Redundancy.Caused by Failure to Follow Procedures.Technicians Reinstructed
type: Subject
label: 05000312/LER-1981-056-01, /01T-0:on 811211,instrument Technician Tested Instrumentation on Reactor Protective Sys Channel When Trip Sys Not Set Up to Retain Min Degree of Redundancy.Caused by Failure to Follow Procedures.Technicians Reinstructed
page: https://kanterella.com/05000312/LER-2D1981-2D056-2D01-2C_/01T-2D0-3Aon_811211-2Cinstrument_Technician_Tested_Instrumentation_on_Reactor_Protective_Sys_Channel_When_Trip_Sys_Not_Set_Up_to_Retain_Min_De…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-056-01, /01T-0:on 811211,instrument Technician Tested Instrumentation on Reactor Protective Sys Channel When Trip Sys Not Set Up to Retain Min Degree of Redundancy.Caused by Failure to Follow Procedures.Technicians Reinstructed

03L-0:on 811208,reactor Protection Channel C Found Indicating 15 Psi Higher than Channels A,B & D. Apparently Caused by Transmitter Failure.Investigation Continuing & Channel C Bypassed
type: Subject
label: 05000312/LER-1981-057-03, /03L-0:on 811208,reactor Protection Channel C Found Indicating 15 Psi Higher than Channels A,B & D. Apparently Caused by Transmitter Failure.Investigation Continuing & Channel C Bypassed
page: https://kanterella.com/05000312/LER-2D1981-2D057-2D03-2C_/03L-2D0-3Aon_811208-2Creactor_Protection_Channel_C_Found_Indicating_15_Psi_Higher_than_Channels_A-2CB_-26_D._Apparently_Caused_by_Transmitter_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-057-03, /03L-0:on 811208,reactor Protection Channel C Found Indicating 15 Psi Higher than Channels A,B & D. Apparently Caused by Transmitter Failure.Investigation Continuing & Channel C Bypassed

05000312/LER-1981-055-03, /03L-0:on 811118,reactor Protection Sys Pressure Transmitters in B & C Channels Found to Have Drifted.Cause Not Stated.Setback of 20 Psi Implemented & Transmitters Rezeroed
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D055-2D03-2C_/03L-2D0-3Aon_811118-2Creactor_Protection_Sys_Pressure_Transmitters_in_B_-26_C_Channels_Found_to_Have_Drifted.Cause_Not_Stated.Setback_of_20_Ps…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-055-03, /03L-0:on 811118,reactor Protection Sys Pressure Transmitters in B & C Channels Found to Have Drifted.Cause Not Stated.Setback of 20 Psi Implemented & Transmitters Rezeroed

ML20052B487
type: Subject
page: https://kanterella.com/ML20052B487
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20052B487

05000312/LER-1981-054-03, /03L-0:on 811024,while Performing RPS Channel C Test I-108C,breaker Trip Test Not Done.Caused by Technician Failure to Perform Test as Required.Trip Test Performed on 811026
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D054-2D03-2C_/03L-2D0-3Aon_811024-2Cwhile_Performing_RPS_Channel_C_Test_I-2D108C-2Cbreaker_Trip_Test_Not_Done.Caused_by_Technician_Failure_to_Perform_Test_a…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-054-03, /03L-0:on 811024,while Performing RPS Channel C Test I-108C,breaker Trip Test Not Done.Caused by Technician Failure to Perform Test as Required.Trip Test Performed on 811026

ML20041G484
type: Subject
page: https://kanterella.com/ML20041G484
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20041G484

05000312/LER-1981-052-03, /03L-0:on 811005,nuclear Svc Raw Water Pump B (P-472B)tripped W/O Alarms or Target Drops.Cause Not Found. Pump Restarted & Quarterly Surveillance Test Run W/O Problems
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D052-2D03-2C_/03L-2D0-3Aon_811005-2Cnuclear_Svc_Raw_Water_Pump_B_-28P-2D472B-29tripped_W/O_Alarms_or_Target_Drops.Cause_Not_Found._Pump_Restarted_-26_Quarte…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-052-03, /03L-0:on 811005,nuclear Svc Raw Water Pump B (P-472B)tripped W/O Alarms or Target Drops.Cause Not Found. Pump Restarted & Quarterly Surveillance Test Run W/O Problems

No Difficulty.Motor Current Found Acceptable.Valve Will Be Tested Again in Cold Shutdown
type: Subject
label: 05000312/LER-1981-053-03, /03L-0:on 811022,safety Features Valve SFV-20577 Failed to Stroke Fully Closed.Valve Cycled Manually Then Cycled Electrically W/No Difficulty.Motor Current Found Acceptable.Valve Will Be Tested Again in Cold Shutdown
page: https://kanterella.com/05000312/LER-2D1981-2D053-2D03-2C_/03L-2D0-3Aon_811022-2Csafety_Features_Valve_SFV-2D20577_Failed_to_Stroke_Fully_Closed.Valve_Cycled_Manually_Then_Cycled_Electrically_W/No_Diff…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-053-03, /03L-0:on 811022,safety Features Valve SFV-20577 Failed to Stroke Fully Closed.Valve Cycled Manually Then Cycled Electrically W/No Difficulty.Motor Current Found Acceptable.Valve Will Be Tested Again in Cold Shutdown

03L-0:on 810929,while Performing Surveillance Test,Safety Features Valve SFV-22025 Failed to Close.Caused by Lack of pre-set Compression on Spring Pack in Limitorque Operation.New Spring Pack Installed in Valve
type: Subject
label: 05000312/LER-1981-049-03, /03L-0:on 810929,while Performing Surveillance Test,Safety Features Valve SFV-22025 Failed to Close.Caused by Lack of pre-set Compression on Spring Pack in Limitorque Operation.New Spring Pack Installed in Valve
page: https://kanterella.com/05000312/LER-2D1981-2D049-2D03-2C_/03L-2D0-3Aon_810929-2Cwhile_Performing_Surveillance_Test-2CSafety_Features_Valve_SFV-2D22025_Failed_to_Close.Caused_by_Lack_of_pre-2Dset_Compr…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-049-03, /03L-0:on 810929,while Performing Surveillance Test,Safety Features Valve SFV-22025 Failed to Close.Caused by Lack of pre-set Compression on Spring Pack in Limitorque Operation.New Spring Pack Installed in Valve

03L-0:on 810930,while Performing Surveillance Test,Safety Features Valve SFV-46014 Found to Have Excessive Stroke Time.Caused by Tightness of Valve Packing. Reajusted Packing & Lubricated Stem
type: Subject
label: 05000312/LER-1981-051-03, /03L-0:on 810930,while Performing Surveillance Test,Safety Features Valve SFV-46014 Found to Have Excessive Stroke Time.Caused by Tightness of Valve Packing. Reajusted Packing & Lubricated Stem
page: https://kanterella.com/05000312/LER-2D1981-2D051-2D03-2C_/03L-2D0-3Aon_810930-2Cwhile_Performing_Surveillance_Test-2CSafety_Features_Valve_SFV-2D46014_Found_to_Have_Excessive_Stroke_Time.Caused_by_Tig…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-051-03, /03L-0:on 810930,while Performing Surveillance Test,Safety Features Valve SFV-46014 Found to Have Excessive Stroke Time.Caused by Tightness of Valve Packing. Reajusted Packing & Lubricated Stem

LER-1981-016-03, Degradation of Lube Oil Cooling Capacity on HPI Pump B Found.Caused by Excessive Corrosion of Cooler Heads.Coolers Cleaned & One Epoxy Coated.After Satisfactory Performance Two Others Coated
type: Subject
label: 05000312/LER-1981-016-03, Degradation of Lube Oil Cooling Capacity on HPI Pump B Found.Caused by Excessive Corrosion of Cooler Heads.Coolers Cleaned & One Epoxy Coated.After Satisfactory Performance Two Others Coated
page: https://kanterella.com/05000312/LER-2D1981-2D016-2D03-2C_Degradation_of_Lube_Oil_Cooling_Capacity_on_HPI_Pump_B_Found.Caused_by_Excessive_Corrosion_of_Cooler_Heads.Coolers_Cleaned_-26_One_Epoxy_Coated…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-016-03, Degradation of Lube Oil Cooling Capacity on HPI Pump B Found.Caused by Excessive Corrosion of Cooler Heads.Coolers Cleaned & One Epoxy Coated.After Satisfactory Performance Two Others Coated

03L-0:on 810930,during Surveillance Test,Valve Failed to Stroke Closed.Caused by Water & Rust Preventing Solenoid from Proper Operation.Valve Cleaned & Replaced.Addl Maint Efforts Will Address Moisture Collection Problem
type: Subject
label: 05000312/LER-1981-050-03, /03L-0:on 810930,during Surveillance Test,Valve Failed to Stroke Closed.Caused by Water & Rust Preventing Solenoid from Proper Operation.Valve Cleaned & Replaced.Addl Maint Efforts Will Address Moisture Collection Problem
page: https://kanterella.com/05000312/LER-2D1981-2D050-2D03-2C_/03L-2D0-3Aon_810930-2Cduring_Surveillance_Test-2CValve_Failed_to_Stroke_Closed.Caused_by_Water_-26_Rust_Preventing_Solenoid_from_Proper_Operat…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-050-03, /03L-0:on 810930,during Surveillance Test,Valve Failed to Stroke Closed.Caused by Water & Rust Preventing Solenoid from Proper Operation.Valve Cleaned & Replaced.Addl Maint Efforts Will Address Moisture Collection Problem

03L-0:on 810916,found That Pipe Supports Could Be Overstressed by Thermal & Seismic Loads.Caused by Design Deficiency.Pipe Supports Redesigned & Modified to Conform to ASME Code Allowables
type: Subject
label: 05000312/LER-1981-041-03, /03L-0:on 810916,found That Pipe Supports Could Be Overstressed by Thermal & Seismic Loads.Caused by Design Deficiency.Pipe Supports Redesigned & Modified to Conform to ASME Code Allowables
page: https://kanterella.com/05000312/LER-2D1981-2D041-2D03-2C_/03L-2D0-3Aon_810916-2Cfound_That_Pipe_Supports_Could_Be_Overstressed_by_Thermal_-26_Seismic_Loads.Caused_by_Design_Deficiency.Pipe_Supports_Re…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-041-03, /03L-0:on 810916,found That Pipe Supports Could Be Overstressed by Thermal & Seismic Loads.Caused by Design Deficiency.Pipe Supports Redesigned & Modified to Conform to ASME Code Allowables

05000312/LER-1981-047-01, /01E-0:on 810930,bus a Emergency Pressurizer Heater Bank 3 Operated Intermittently Due to Loose Wire. Caused by Misoriented Screw Washer.Washer re-oriented & Screw Tightened
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D047-2D01-2C_/01E-2D0-3Aon_810930-2Cbus_a_Emergency_Pressurizer_Heater_Bank_3_Operated_Intermittently_Due_to_Loose_Wire._Caused_by_Misoriented_Screw_Washer.…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-047-01, /01E-0:on 810930,bus a Emergency Pressurizer Heater Bank 3 Operated Intermittently Due to Loose Wire. Caused by Misoriented Screw Washer.Washer re-oriented & Screw Tightened

05000312/LER-1981-048-04, /04T-0:on 811003,monthly Record Review Revealed Violation on 4 Days of Ph Limit in Sept.Three Violations Caused by Instrument Calibr.Corrective Action in Followup Rept
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D048-2D04-2C_/04T-2D0-3Aon_811003-2Cmonthly_Record_Review_Revealed_Violation_on_4_Days_of_Ph_Limit_in_Sept.Three_Violations_Caused_by_Instrument_Calibr.Corr…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-048-04, /04T-0:on 811003,monthly Record Review Revealed Violation on 4 Days of Ph Limit in Sept.Three Violations Caused by Instrument Calibr.Corrective Action in Followup Rept

Plant Shut Down,Abnormal Level of Radioactivity Found.Caused by Leak in Nitrogen Supply Sys.Spool Piece Replaced by Blank Flanges
type: Subject
label: 05000312/LER-1981-044-03, /03L-0:on 810825,during once-through Steam Generator Sampling Operation W/Plant Shut Down,Abnormal Level of Radioactivity Found.Caused by Leak in Nitrogen Supply Sys.Spool Piece Replaced by Blank Flanges
page: https://kanterella.com/05000312/LER-2D1981-2D044-2D03-2C_/03L-2D0-3Aon_810825-2Cduring_once-2Dthrough_Steam_Generator_Sampling_Operation_W/Plant_Shut_Down-2CAbnormal_Level_of_Radioactivity_Found.Cause…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-044-03, /03L-0:on 810825,during once-through Steam Generator Sampling Operation W/Plant Shut Down,Abnormal Level of Radioactivity Found.Caused by Leak in Nitrogen Supply Sys.Spool Piece Replaced by Blank Flanges

03L-0:between 810910 & 19,snubber Surveillance Procedure Revealed One Failed Snubber & Five Snubbers Low in Hydraulic Fluid.Caused by Clevis Pin & Pipe Line Clamp Nuts Missing in Former & Worn Valve Block Body in Others
type: Subject
label: 05000312/LER-1981-046-03, /03L-0:between 810910 & 19,snubber Surveillance Procedure Revealed One Failed Snubber & Five Snubbers Low in Hydraulic Fluid.Caused by Clevis Pin & Pipe Line Clamp Nuts Missing in Former & Worn Valve Block Body in Others
page: https://kanterella.com/05000312/LER-2D1981-2D046-2D03-2C_/03L-2D0-3Abetween_810910_-26_19-2Csnubber_Surveillance_Procedure_Revealed_One_Failed_Snubber_-26_Five_Snubbers_Low_in_Hydraulic_Fluid.Caused_b…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-046-03, /03L-0:between 810910 & 19,snubber Surveillance Procedure Revealed One Failed Snubber & Five Snubbers Low in Hydraulic Fluid.Caused by Clevis Pin & Pipe Line Clamp Nuts Missing in Former & Worn Valve Block Body in Others

ML20031E225
type: Subject
page: https://kanterella.com/ML20031E225
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20031E225

04T-0:on 810903,during Monthly Review of Plant Effluent Records,Found That Ph Limit Was Violated on Four Days in Aug.Plant Effluent Sys Allows Several Minor Violations Per Month.Followup Rept Will Be Submitted
type: Subject
label: 05000312/LER-1981-042-04, /04T-0:on 810903,during Monthly Review of Plant Effluent Records,Found That Ph Limit Was Violated on Four Days in Aug.Plant Effluent Sys Allows Several Minor Violations Per Month.Followup Rept Will Be Submitted
page: https://kanterella.com/05000312/LER-2D1981-2D042-2D04-2C_/04T-2D0-3Aon_810903-2Cduring_Monthly_Review_of_Plant_Effluent_Records-2CFound_That_Ph_Limit_Was_Violated_on_Four_Days_in_Aug.Plant_Effluent_Sy…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-042-04, /04T-0:on 810903,during Monthly Review of Plant Effluent Records,Found That Ph Limit Was Violated on Four Days in Aug.Plant Effluent Sys Allows Several Minor Violations Per Month.Followup Rept Will Be Submitted

03L-0:on 810818,performance of Surveillance Procedure Revealed 26 Discrepant Pipe Penetration Fire Stops.Caused by Insufficient Grouting,Supports & Silicone Foam.Fire Watch Will Continue Pending Repairs by 811215
type: Subject
label: 05000312/LER-1981-043-03, /03L-0:on 810818,performance of Surveillance Procedure Revealed 26 Discrepant Pipe Penetration Fire Stops.Caused by Insufficient Grouting,Supports & Silicone Foam.Fire Watch Will Continue Pending Repairs by 811215
page: https://kanterella.com/05000312/LER-2D1981-2D043-2D03-2C_/03L-2D0-3Aon_810818-2Cperformance_of_Surveillance_Procedure_Revealed_26_Discrepant_Pipe_Penetration_Fire_Stops.Caused_by_Insufficient_Grouting…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-043-03, /03L-0:on 810818,performance of Surveillance Procedure Revealed 26 Discrepant Pipe Penetration Fire Stops.Caused by Insufficient Grouting,Supports & Silicone Foam.Fire Watch Will Continue Pending Repairs by 811215

Dissolved Solids Indication.Operator Will Review Rept
type: Subject
label: 05000312/LER-1981-040-04, /04T-0:on 810831,review of Water Quality Records Revealed That Limit on Total Dissolved Solids Exceeded on 810709.Caused by Operator Inattention to Integrated Flow Rate/Dissolved Solids Indication.Operator Will Review Rept
page: https://kanterella.com/05000312/LER-2D1981-2D040-2D04-2C_/04T-2D0-3Aon_810831-2Creview_of_Water_Quality_Records_Revealed_That_Limit_on_Total_Dissolved_Solids_Exceeded_on_810709.Caused_by_Operator_Inat…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-040-04, /04T-0:on 810831,review of Water Quality Records Revealed That Limit on Total Dissolved Solids Exceeded on 810709.Caused by Operator Inattention to Integrated Flow Rate/Dissolved Solids Indication.Operator Will Review Rept

03L-1:on 810625 Diesel Generator a Synchronization Test Revealed Unstable Operation of Diesel Generator G886A.Caused by Slow Oil Leak in Governor.Oil Added.Generator to Be Replaced
type: Subject
label: 05000312/LER-1981-035-03, /03L-1:on 810625 Diesel Generator a Synchronization Test Revealed Unstable Operation of Diesel Generator G886A.Caused by Slow Oil Leak in Governor.Oil Added.Generator to Be Replaced
page: https://kanterella.com/05000312/LER-2D1981-2D035-2D03-2C_/03L-2D1-3Aon_810625_Diesel_Generator_a_Synchronization_Test_Revealed_Unstable_Operation_of_Diesel_Generator_G886A.Caused_by_Slow_Oil_Leak_in_G…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-035-03, /03L-1:on 810625 Diesel Generator a Synchronization Test Revealed Unstable Operation of Diesel Generator G886A.Caused by Slow Oil Leak in Governor.Oil Added.Generator to Be Replaced

04T-0:on 810713,monthly Review of Plant Effluent Records Revealed 12 Instances of Plant Effluent Ph Exceeding Allowable Levels.Caused by Ongoing Work on Instrumentation, Poor Sampling Techniques & Leaking Valves
type: Subject
label: 05000312/LER-1981-036-04, /04T-0:on 810713,monthly Review of Plant Effluent Records Revealed 12 Instances of Plant Effluent Ph Exceeding Allowable Levels.Caused by Ongoing Work on Instrumentation, Poor Sampling Techniques & Leaking Valves
page: https://kanterella.com/05000312/LER-2D1981-2D036-2D04-2C_/04T-2D0-3Aon_810713-2Cmonthly_Review_of_Plant_Effluent_Records_Revealed_12_Instances_of_Plant_Effluent_Ph_Exceeding_Allowable_Levels.Caused_by…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-036-04, /04T-0:on 810713,monthly Review of Plant Effluent Records Revealed 12 Instances of Plant Effluent Ph Exceeding Allowable Levels.Caused by Ongoing Work on Instrumentation, Poor Sampling Techniques & Leaking Valves

03L-0:on 821026,QA Dept Reported That Portion of Auxiliary Feedwater Start Circuit Was Not Being Tested Per Requirements.Caused by Transposed Requirements in Tech Specs.Tech Specs Will Be Amended
type: Subject
label: 05000312/LER-1982-029-03, /03L-0:on 821026,QA Dept Reported That Portion of Auxiliary Feedwater Start Circuit Was Not Being Tested Per Requirements.Caused by Transposed Requirements in Tech Specs.Tech Specs Will Be Amended
page: https://kanterella.com/05000312/LER-2D1982-2D029-2D03-2C_/03L-2D0-3Aon_821026-2CQA_Dept_Reported_That_Portion_of_Auxiliary_Feedwater_Start_Circuit_Was_Not_Being_Tested_Per_Requirements.Caused_by_Trans…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-029-03, /03L-0:on 821026,QA Dept Reported That Portion of Auxiliary Feedwater Start Circuit Was Not Being Tested Per Requirements.Caused by Transposed Requirements in Tech Specs.Tech Specs Will Be Amended

03L-0:on 820909,weekly Nitrogen Sys Surveillance Showed Xe-133 Activity in Auxiliary Bldg Nitrogen Header. Cause Undetermined.Investigation Will Be Conducted.Followup Rept on Cause & Corrective Actions Will Be Provided
type: Subject
label: 05000312/LER-1982-023-03, /03L-0:on 820909,weekly Nitrogen Sys Surveillance Showed Xe-133 Activity in Auxiliary Bldg Nitrogen Header. Cause Undetermined.Investigation Will Be Conducted.Followup Rept on Cause & Corrective Actions Will Be Provided
page: https://kanterella.com/05000312/LER-2D1982-2D023-2D03-2C_/03L-2D0-3Aon_820909-2Cweekly_Nitrogen_Sys_Surveillance_Showed_Xe-2D133_Activity_in_Auxiliary_Bldg_Nitrogen_Header._Cause_Undetermined.Investig…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-023-03, /03L-0:on 820909,weekly Nitrogen Sys Surveillance Showed Xe-133 Activity in Auxiliary Bldg Nitrogen Header. Cause Undetermined.Investigation Will Be Conducted.Followup Rept on Cause & Corrective Actions Will Be Provided

03L-0:on 821012,weekly Surveillance of Nitrogen Sys Revealed Presence of Contamination in Form of Xe-133. Cause Undetermined.Sys Purged & Activities Reduced to Below Detectable Levels.Investigation Underway.Rept Will Follow
type: Subject
label: 05000312/LER-1982-027-03, /03L-0:on 821012,weekly Surveillance of Nitrogen Sys Revealed Presence of Contamination in Form of Xe-133. Cause Undetermined.Sys Purged & Activities Reduced to Below Detectable Levels.Investigation Underway.Rept Will Follow
page: https://kanterella.com/05000312/LER-2D1982-2D027-2D03-2C_/03L-2D0-3Aon_821012-2Cweekly_Surveillance_of_Nitrogen_Sys_Revealed_Presence_of_Contamination_in_Form_of_Xe-2D133._Cause_Undetermined.Sys_Purge…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-027-03, /03L-0:on 821012,weekly Surveillance of Nitrogen Sys Revealed Presence of Contamination in Form of Xe-133. Cause Undetermined.Sys Purged & Activities Reduced to Below Detectable Levels.Investigation Underway.Rept Will Follow

99X-0:on 820922,small Pieces of Matl Resembling Paint Chips Observed During Flow Control Valve Repair in Auxiliary Bldg Fire Protection Sys.Probably Caused by Detached Liner Matl.Piping to Be Inspected & Repaired
type: Subject
label: 05000312/LER-1982-028-99, /99X-0:on 820922,small Pieces of Matl Resembling Paint Chips Observed During Flow Control Valve Repair in Auxiliary Bldg Fire Protection Sys.Probably Caused by Detached Liner Matl.Piping to Be Inspected & Repaired
page: https://kanterella.com/05000312/LER-2D1982-2D028-2D99-2C_/99X-2D0-3Aon_820922-2Csmall_Pieces_of_Matl_Resembling_Paint_Chips_Observed_During_Flow_Control_Valve_Repair_in_Auxiliary_Bldg_Fire_Protection_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-028-99, /99X-0:on 820922,small Pieces of Matl Resembling Paint Chips Observed During Flow Control Valve Repair in Auxiliary Bldg Fire Protection Sys.Probably Caused by Detached Liner Matl.Piping to Be Inspected & Repaired

03L-0:on 830601,during Records Review,Effluent Sample on Release Erdf 83-56 Discovered Not Performed. Caused by Operator Failing to Notify chem-rad Officer at Onset of Release.Procedure Revised
type: Subject
label: 05000312/LER-1983-025-03, /03L-0:on 830601,during Records Review,Effluent Sample on Release Erdf 83-56 Discovered Not Performed. Caused by Operator Failing to Notify chem-rad Officer at Onset of Release.Procedure Revised
page: https://kanterella.com/05000312/LER-2D1983-2D025-2D03-2C_/03L-2D0-3Aon_830601-2Cduring_Records_Review-2CEffluent_Sample_on_Release_Erdf_83-2D56_Discovered_Not_Performed._Caused_by_Operator_Failing_to_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1983-025-03, /03L-0:on 830601,during Records Review,Effluent Sample on Release Erdf 83-56 Discovered Not Performed. Caused by Operator Failing to Notify chem-rad Officer at Onset of Release.Procedure Revised

03L-0:on 830507,cooling Water to Reactor Bldg Emergency Cooling Unit a 500c Motor Found to Be Drawing Locked Rotor Current Preventing Valve from Stroking.Female Control Disconnect Switch Found Spread Apart
type: Subject
label: 05000312/LER-1983-022-03, /03L-0:on 830507,cooling Water to Reactor Bldg Emergency Cooling Unit a 500c Motor Found to Be Drawing Locked Rotor Current Preventing Valve from Stroking.Female Control Disconnect Switch Found Spread Apart
page: https://kanterella.com/05000312/LER-2D1983-2D022-2D03-2C_/03L-2D0-3Aon_830507-2Ccooling_Water_to_Reactor_Bldg_Emergency_Cooling_Unit_a_500c_Motor_Found_to_Be_Drawing_Locked_Rotor_Current_Preventing_Va…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1983-022-03, /03L-0:on 830507,cooling Water to Reactor Bldg Emergency Cooling Unit a 500c Motor Found to Be Drawing Locked Rotor Current Preventing Valve from Stroking.Female Control Disconnect Switch Found Spread Apart

03L-0:on 830331,during Surveillance Testing on snubbers,10 Snubbers Mfg by Grinnell & Bergen-Patterson Failed Acceptance Criteria.Caused by Defective Seals,Body Corrosion & Water in Fluid.Valves Rebuilt
type: Subject
label: 05000312/LER-1983-016-03, /03L-0:on 830331,during Surveillance Testing on snubbers,10 Snubbers Mfg by Grinnell & Bergen-Patterson Failed Acceptance Criteria.Caused by Defective Seals,Body Corrosion & Water in Fluid.Valves Rebuilt
page: https://kanterella.com/05000312/LER-2D1983-2D016-2D03-2C_/03L-2D0-3Aon_830331-2Cduring_Surveillance_Testing_on_snubbers-2C10_Snubbers_Mfg_by_Grinnell_-26_Bergen-2DPatterson_Failed_Acceptance_Criteria.…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1983-016-03, /03L-0:on 830331,during Surveillance Testing on snubbers,10 Snubbers Mfg by Grinnell & Bergen-Patterson Failed Acceptance Criteria.Caused by Defective Seals,Body Corrosion & Water in Fluid.Valves Rebuilt

05000312/LER-1981-045-03, /03L-0:on 810827,during Plant Shutdown,Decay Heat Pump B Was Found Leaking.Cause Not Stated.Shaft Seals Will Be Replaced Prior to Next Reactor Startup
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D045-2D03-2C_/03L-2D0-3Aon_810827-2Cduring_Plant_Shutdown-2CDecay_Heat_Pump_B_Was_Found_Leaking.Cause_Not_Stated.Shaft_Seals_Will_Be_Replaced_Prior_to_Next_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-045-03, /03L-0:on 810827,during Plant Shutdown,Decay Heat Pump B Was Found Leaking.Cause Not Stated.Shaft Seals Will Be Replaced Prior to Next Reactor Startup

Reactor Shut Down.Caused by High Local Electrical Demand.Direct Indication of Voltage & Alarm Will Be Installed in Control Room.Updated Analysis Forthcoming
type: Subject
label: 05000312/LER-1981-039-03, /03L-0:on 810807,switchyard Voltage Decreased to 206 Kv W/Reactor Shut Down.Caused by High Local Electrical Demand.Direct Indication of Voltage & Alarm Will Be Installed in Control Room.Updated Analysis Forthcoming
page: https://kanterella.com/05000312/LER-2D1981-2D039-2D03-2C_/03L-2D0-3Aon_810807-2Cswitchyard_Voltage_Decreased_to_206_Kv_W/Reactor_Shut_Down.Caused_by_High_Local_Electrical_Demand.Direct_Indication_of_V…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-039-03, /03L-0:on 810807,switchyard Voltage Decreased to 206 Kv W/Reactor Shut Down.Caused by High Local Electrical Demand.Direct Indication of Voltage & Alarm Will Be Installed in Control Room.Updated Analysis Forthcoming

03L-0:on 810713,fire Door Surveillance Procedure Revealed 37 Apparently Unacceptable Fire Doors.Cause Not Stated.Obstruction Removed from one,13 Repaired & 23 Found Acceptable.Fire Watches to Be Established
type: Subject
label: 05000312/LER-1981-038-03, /03L-0:on 810713,fire Door Surveillance Procedure Revealed 37 Apparently Unacceptable Fire Doors.Cause Not Stated.Obstruction Removed from one,13 Repaired & 23 Found Acceptable.Fire Watches to Be Established
page: https://kanterella.com/05000312/LER-2D1981-2D038-2D03-2C_/03L-2D0-3Aon_810713-2Cfire_Door_Surveillance_Procedure_Revealed_37_Apparently_Unacceptable_Fire_Doors.Cause_Not_Stated.Obstruction_Removed_fro…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-038-03, /03L-0:on 810713,fire Door Surveillance Procedure Revealed 37 Apparently Unacceptable Fire Doors.Cause Not Stated.Obstruction Removed from one,13 Repaired & 23 Found Acceptable.Fire Watches to Be Established

03L-0:on 810707,during Surveillance Test, Isolation Valve Failed to Close within Tech Spec Limit. Apparently Caused by Foreign Matl in Air Discharge Port.Port Cleaned & Valve Operated Properly
type: Subject
label: 05000312/LER-1981-037-03, /03L-0:on 810707,during Surveillance Test, Isolation Valve Failed to Close within Tech Spec Limit. Apparently Caused by Foreign Matl in Air Discharge Port.Port Cleaned & Valve Operated Properly
page: https://kanterella.com/05000312/LER-2D1981-2D037-2D03-2C_/03L-2D0-3Aon_810707-2Cduring_Surveillance_Test-2C_Isolation_Valve_Failed_to_Close_within_Tech_Spec_Limit._Apparently_Caused_by_Foreign_Matl_in…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-037-03, /03L-0:on 810707,during Surveillance Test, Isolation Valve Failed to Close within Tech Spec Limit. Apparently Caused by Foreign Matl in Air Discharge Port.Port Cleaned & Valve Operated Properly

ML20010C183
type: Subject
page: https://kanterella.com/ML20010C183
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20010C183

ML20010F965
type: Subject
page: https://kanterella.com/ML20010F965
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20010F965

ML20024D238
type: Subject
page: https://kanterella.com/ML20024D238
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20024D238

ML20039B282
type: Subject
page: https://kanterella.com/ML20039B282
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20039B282

ML20054B570
type: Subject
page: https://kanterella.com/ML20054B570
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20054B570

Reactor Shutdown.Caused by High Local Electrical Demand. Direct Indication of Switchyard Voltage & Alarm to Be Installed in Control Room & Safety Analysis to Be Updated
type: Subject
label: 05000312/LER-1981-034-03, /03L-0:on 810619,switchyard Voltage Decreased W/ Reactor Shutdown.Caused by High Local Electrical Demand. Direct Indication of Switchyard Voltage & Alarm to Be Installed in Control Room & Safety Analysis to Be Updated
page: https://kanterella.com/05000312/LER-2D1981-2D034-2D03-2C_/03L-2D0-3Aon_810619-2Cswitchyard_Voltage_Decreased_W/_Reactor_Shutdown.Caused_by_High_Local_Electrical_Demand._Direct_Indication_of_Switchyard…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-034-03, /03L-0:on 810619,switchyard Voltage Decreased W/ Reactor Shutdown.Caused by High Local Electrical Demand. Direct Indication of Switchyard Voltage & Alarm to Be Installed in Control Room & Safety Analysis to Be Updated

05000312/LER-1981-033-03, /03L-0:on 810611,investigation of Diesel Trouble Alarm Revealed Open Relay Which Would Have Prevented Operation of Diesel Generator A.Relay Reset.Alarm to Be Modified
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D033-2D03-2C_/03L-2D0-3Aon_810611-2Cinvestigation_of_Diesel_Trouble_Alarm_Revealed_Open_Relay_Which_Would_Have_Prevented_Operation_of_Diesel_Generator_A.Rel…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-033-03, /03L-0:on 810611,investigation of Diesel Trouble Alarm Revealed Open Relay Which Would Have Prevented Operation of Diesel Generator A.Relay Reset.Alarm to Be Modified

Nearly Empty Accumulator on Letdown Cooler Discovered During Sp at Cold Shutdown.Caused by Leaking Valve Block Seal.Snubber Removed, Adjusted & Reinstalled & Seal Replaced
type: Subject
label: 05000312/LER-1981-032-03, /03L-0:on 810527,snubber W/Nearly Empty Accumulator on Letdown Cooler Discovered During Sp at Cold Shutdown.Caused by Leaking Valve Block Seal.Snubber Removed, Adjusted & Reinstalled & Seal Replaced
page: https://kanterella.com/05000312/LER-2D1981-2D032-2D03-2C_/03L-2D0-3Aon_810527-2Csnubber_W/Nearly_Empty_Accumulator_on_Letdown_Cooler_Discovered_During_Sp_at_Cold_Shutdown.Caused_by_Leaking_Valve_Block…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-032-03, /03L-0:on 810527,snubber W/Nearly Empty Accumulator on Letdown Cooler Discovered During Sp at Cold Shutdown.Caused by Leaking Valve Block Seal.Snubber Removed, Adjusted & Reinstalled & Seal Replaced

ML20009C067
type: Subject
page: https://kanterella.com/ML20009C067
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20009C067

ML20032E368
type: Subject
page: https://kanterella.com/ML20032E368
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20032E368

04T-0:on 810602,plant Effluent Ph Exceeded Limit. Caused by Fluctuating Ph of Water Supply.Negotiations Underway to Set Ph Limits Based on Max Observed Canal Ph in Previous 30 Days
type: Subject
label: 05000312/LER-1981-030-04, /04T-0:on 810602,plant Effluent Ph Exceeded Limit. Caused by Fluctuating Ph of Water Supply.Negotiations Underway to Set Ph Limits Based on Max Observed Canal Ph in Previous 30 Days
page: https://kanterella.com/05000312/LER-2D1981-2D030-2D04-2C_/04T-2D0-3Aon_810602-2Cplant_Effluent_Ph_Exceeded_Limit._Caused_by_Fluctuating_Ph_of_Water_Supply.Negotiations_Underway_to_Set_Ph_Limits_Based_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-030-04, /04T-0:on 810602,plant Effluent Ph Exceeded Limit. Caused by Fluctuating Ph of Water Supply.Negotiations Underway to Set Ph Limits Based on Max Observed Canal Ph in Previous 30 Days

03L-0:on 810520,fire Barrier Failures Discovered During Sp at Cold Shutdown.Caused by Personnel Failure to Return Barriers to Satisfactory Condition Following Breach. Firewatch Established for Compromised Barriers
type: Subject
label: 05000312/LER-1981-031-03, /03L-0:on 810520,fire Barrier Failures Discovered During Sp at Cold Shutdown.Caused by Personnel Failure to Return Barriers to Satisfactory Condition Following Breach. Firewatch Established for Compromised Barriers
page: https://kanterella.com/05000312/LER-2D1981-2D031-2D03-2C_/03L-2D0-3Aon_810520-2Cfire_Barrier_Failures_Discovered_During_Sp_at_Cold_Shutdown.Caused_by_Personnel_Failure_to_Return_Barriers_to_Satisfacto…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-031-03, /03L-0:on 810520,fire Barrier Failures Discovered During Sp at Cold Shutdown.Caused by Personnel Failure to Return Barriers to Satisfactory Condition Following Breach. Firewatch Established for Compromised Barriers

03L-0:on 810506,inaccessible Snubber Found Low on Fluid During Safety Sys Hydraulic Snubbers Surveillance Inservice Test.Caused by Faulty Accumulator Internals or Valve Body.Internals & Body Removed,Reworked & Reinstalled
type: Subject
label: 05000312/LER-1981-028-03, /03L-0:on 810506,inaccessible Snubber Found Low on Fluid During Safety Sys Hydraulic Snubbers Surveillance Inservice Test.Caused by Faulty Accumulator Internals or Valve Body.Internals & Body Removed,Reworked & Reinstalled
page: https://kanterella.com/05000312/LER-2D1981-2D028-2D03-2C_/03L-2D0-3Aon_810506-2Cinaccessible_Snubber_Found_Low_on_Fluid_During_Safety_Sys_Hydraulic_Snubbers_Surveillance_Inservice_Test.Caused_by_Fault…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-028-03, /03L-0:on 810506,inaccessible Snubber Found Low on Fluid During Safety Sys Hydraulic Snubbers Surveillance Inservice Test.Caused by Faulty Accumulator Internals or Valve Body.Internals & Body Removed,Reworked & Reinstalled

05000312/LER-1981-027-03, /03L-0:on 810502,RBS Pump Breaker 3A09 Tripped When Attempting Start from Control Room.Cause Unknown.Trip Reset
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D027-2D03-2C_/03L-2D0-3Aon_810502-2CRBS_Pump_Breaker_3A09_Tripped_When_Attempting_Start_from_Control_Room.Cause_Unknown.Trip_Reset
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-027-03, /03L-0:on 810502,RBS Pump Breaker 3A09 Tripped When Attempting Start from Control Room.Cause Unknown.Trip Reset

05000312/LER-1981-025-03, /03T-0:on 810420 & 0506,pressurizer Liquid Sample Valve Failed to Operate.Caused by Stripped Drive Sleeve Bevel Gear.Operator Removed & Replaced.Valve Tested & Stroked
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D025-2D03-2C_/03T-2D0-3Aon_810420_-26_0506-2Cpressurizer_Liquid_Sample_Valve_Failed_to_Operate.Caused_by_Stripped_Drive_Sleeve_Bevel_Gear.Operator_Removed_-…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-025-03, /03T-0:on 810420 & 0506,pressurizer Liquid Sample Valve Failed to Operate.Caused by Stripped Drive Sleeve Bevel Gear.Operator Removed & Replaced.Valve Tested & Stroked

03T-0:on 810419,approx 4,000 Gallons of Reactor Coolant Was Inadvertently Transferred from RCS to Reactor Bldg Emergency Pump.Caused by Personnel Error.Rcs Was Refilled & Revented
type: Subject
label: 05000312/LER-1981-024-03, /03T-0:on 810419,approx 4,000 Gallons of Reactor Coolant Was Inadvertently Transferred from RCS to Reactor Bldg Emergency Pump.Caused by Personnel Error.Rcs Was Refilled & Revented
page: https://kanterella.com/05000312/LER-2D1981-2D024-2D03-2C_/03T-2D0-3Aon_810419-2Capprox_4-2C000_Gallons_of_Reactor_Coolant_Was_Inadvertently_Transferred_from_RCS_to_Reactor_Bldg_Emergency_Pump.Caused_b…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-024-03, /03T-0:on 810419,approx 4,000 Gallons of Reactor Coolant Was Inadvertently Transferred from RCS to Reactor Bldg Emergency Pump.Caused by Personnel Error.Rcs Was Refilled & Revented

03T-0:on 810402,BWST Valve SFV-25003 Failed to Open Electrically Due to Rounded Off Dogs on Worm Shaft Clutch Gear.Caused by Manual Operation of Valve.Worm Components Replaced.Design Changes Are Being Processed
type: Subject
label: 05000312/LER-1981-021-03, /03T-0:on 810402,BWST Valve SFV-25003 Failed to Open Electrically Due to Rounded Off Dogs on Worm Shaft Clutch Gear.Caused by Manual Operation of Valve.Worm Components Replaced.Design Changes Are Being Processed
page: https://kanterella.com/05000312/LER-2D1981-2D021-2D03-2C_/03T-2D0-3Aon_810402-2CBWST_Valve_SFV-2D25003_Failed_to_Open_Electrically_Due_to_Rounded_Off_Dogs_on_Worm_Shaft_Clutch_Gear.Caused_by_Manual_Op…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-021-03, /03T-0:on 810402,BWST Valve SFV-25003 Failed to Open Electrically Due to Rounded Off Dogs on Worm Shaft Clutch Gear.Caused by Manual Operation of Valve.Worm Components Replaced.Design Changes Are Being Processed

04T-0:on 810326,liquid Effluent Ph Exceeded 8.5 Tech Spec Limit for Approx 15 Minutes.Caused by Retention Basin Being Released Prior to Increasing Dilution Water Flow.Effluent Ph Instrumentation Calibr & Monitored
type: Subject
label: 05000312/LER-1981-020-04, /04T-0:on 810326,liquid Effluent Ph Exceeded 8.5 Tech Spec Limit for Approx 15 Minutes.Caused by Retention Basin Being Released Prior to Increasing Dilution Water Flow.Effluent Ph Instrumentation Calibr & Monitored
page: https://kanterella.com/05000312/LER-2D1981-2D020-2D04-2C_/04T-2D0-3Aon_810326-2Cliquid_Effluent_Ph_Exceeded_8.5_Tech_Spec_Limit_for_Approx_15_Minutes.Caused_by_Retention_Basin_Being_Released_Prior_to_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-020-04, /04T-0:on 810326,liquid Effluent Ph Exceeded 8.5 Tech Spec Limit for Approx 15 Minutes.Caused by Retention Basin Being Released Prior to Increasing Dilution Water Flow.Effluent Ph Instrumentation Calibr & Monitored

Anchor Bolts. Probably Caused by Relocation to Facilitate Movement of Equipment.Support Relocated & Fastened
type: Subject
label: 05000312/LER-1981-017-03, /03L-0:on 810316,unistrut Cable Tray Support H-80 Found 3 Ft Out of Position & Not Fastened W/Anchor Bolts. Probably Caused by Relocation to Facilitate Movement of Equipment.Support Relocated & Fastened
page: https://kanterella.com/05000312/LER-2D1981-2D017-2D03-2C_/03L-2D0-3Aon_810316-2Cunistrut_Cable_Tray_Support_H-2D80_Found_3_Ft_Out_of_Position_-26_Not_Fastened_W/Anchor_Bolts._Probably_Caused_by_Reloca…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-017-03, /03L-0:on 810316,unistrut Cable Tray Support H-80 Found 3 Ft Out of Position & Not Fastened W/Anchor Bolts. Probably Caused by Relocation to Facilitate Movement of Equipment.Support Relocated & Fastened

03L-0:on 810316,obstruction in Suction of Atmosphere Radiation Monitor R15001B Discovered.Caused by Plastic Cap from Bottle of Industrial Leak Detection Fluid. Bottle Cap Removed from Sample Line Suction
type: Subject
label: 05000312/LER-1981-019-03, /03L-0:on 810316,obstruction in Suction of Atmosphere Radiation Monitor R15001B Discovered.Caused by Plastic Cap from Bottle of Industrial Leak Detection Fluid. Bottle Cap Removed from Sample Line Suction
page: https://kanterella.com/05000312/LER-2D1981-2D019-2D03-2C_/03L-2D0-3Aon_810316-2Cobstruction_in_Suction_of_Atmosphere_Radiation_Monitor_R15001B_Discovered.Caused_by_Plastic_Cap_from_Bottle_of_Industria…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-019-03, /03L-0:on 810316,obstruction in Suction of Atmosphere Radiation Monitor R15001B Discovered.Caused by Plastic Cap from Bottle of Industrial Leak Detection Fluid. Bottle Cap Removed from Sample Line Suction

05000312/LER-1981-013-03, /03L-0:on 810223,inner Door of Reactor Bldg Personnel Hatch Failed to Close Completely.Caused by Misinterpretation of Tech Specs.Written Interpretation to Be Distributed
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D013-2D03-2C_/03L-2D0-3Aon_810223-2Cinner_Door_of_Reactor_Bldg_Personnel_Hatch_Failed_to_Close_Completely.Caused_by_Misinterpretation_of_Tech_Specs.Written_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-013-03, /03L-0:on 810223,inner Door of Reactor Bldg Personnel Hatch Failed to Close Completely.Caused by Misinterpretation of Tech Specs.Written Interpretation to Be Distributed

03L-0:on 801219,during Performance of Sp 206.03B, B Diesel Generator Failed to Start.Cause Not Stated.Unit Declared Operable 801222 After Passing Applicable Surveillance Test
type: Subject
label: 05000312/LER-1980-049-03, /03L-0:on 801219,during Performance of Sp 206.03B, B Diesel Generator Failed to Start.Cause Not Stated.Unit Declared Operable 801222 After Passing Applicable Surveillance Test
page: https://kanterella.com/05000312/LER-2D1980-2D049-2D03-2C_/03L-2D0-3Aon_801219-2Cduring_Performance_of_Sp_206.03B-2C_B_Diesel_Generator_Failed_to_Start.Cause_Not_Stated.Unit_Declared_Operable_801222_Af…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-049-03, /03L-0:on 801219,during Performance of Sp 206.03B, B Diesel Generator Failed to Start.Cause Not Stated.Unit Declared Operable 801222 After Passing Applicable Surveillance Test

03L-0:on 801104 & 1128,overspeed Trip Lever on Turbine for Automatic Feedwater Pump P-318 Was Found in Apparent Tripped Condition.Cause Could Not Be Determined. Daily Visual Checks Initiated
type: Subject
label: 05000312/LER-1980-046-03, /03L-0:on 801104 & 1128,overspeed Trip Lever on Turbine for Automatic Feedwater Pump P-318 Was Found in Apparent Tripped Condition.Cause Could Not Be Determined. Daily Visual Checks Initiated
page: https://kanterella.com/05000312/LER-2D1980-2D046-2D03-2C_/03L-2D0-3Aon_801104_-26_1128-2Coverspeed_Trip_Lever_on_Turbine_for_Automatic_Feedwater_Pump_P-2D318_Was_Found_in_Apparent_Tripped_Condition.Ca…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-046-03, /03L-0:on 801104 & 1128,overspeed Trip Lever on Turbine for Automatic Feedwater Pump P-318 Was Found in Apparent Tripped Condition.Cause Could Not Be Determined. Daily Visual Checks Initiated

04L-0:on 810125,plant Liquid Effluent Ph Exceeded 8.5 Limit Established by Tech Spec App B,Section 2.4.Caused by Slightly out-of-tolerance Setpoint.Diversion Setpoint Was Reset.Alarm Setpoint Will Be Lowered
type: Subject
label: 05000312/LER-1981-005-04, /04L-0:on 810125,plant Liquid Effluent Ph Exceeded 8.5 Limit Established by Tech Spec App B,Section 2.4.Caused by Slightly out-of-tolerance Setpoint.Diversion Setpoint Was Reset.Alarm Setpoint Will Be Lowered
page: https://kanterella.com/05000312/LER-2D1981-2D005-2D04-2C_/04L-2D0-3Aon_810125-2Cplant_Liquid_Effluent_Ph_Exceeded_8.5_Limit_Established_by_Tech_Spec_App_B-2CSection_2.4.Caused_by_Slightly_out-2Dof-2Dt…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-005-04, /04L-0:on 810125,plant Liquid Effluent Ph Exceeded 8.5 Limit Established by Tech Spec App B,Section 2.4.Caused by Slightly out-of-tolerance Setpoint.Diversion Setpoint Was Reset.Alarm Setpoint Will Be Lowered

01T-0:on 801222,IE Bulletin 79-01B Review Found Lack of Qualification Documentation for Flow Transmitter Utilized to Establish Dilution Flow to Prevent Boron Precipitation Following Loca.Cause Not Stated
type: Subject
label: 05000312/LER-1980-047-01, /01T-0:on 801222,IE Bulletin 79-01B Review Found Lack of Qualification Documentation for Flow Transmitter Utilized to Establish Dilution Flow to Prevent Boron Precipitation Following Loca.Cause Not Stated
page: https://kanterella.com/05000312/LER-2D1980-2D047-2D01-2C_/01T-2D0-3Aon_801222-2CIE_Bulletin_79-2D01B_Review_Found_Lack_of_Qualification_Documentation_for_Flow_Transmitter_Utilized_to_Establish_Dilutio…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-047-01, /01T-0:on 801222,IE Bulletin 79-01B Review Found Lack of Qualification Documentation for Flow Transmitter Utilized to Establish Dilution Flow to Prevent Boron Precipitation Following Loca.Cause Not Stated

03L-0:on 810306,unacceptable Leak Rate Obtained During Local Component Leak Rate Test on Reactor Bldg Penetration 34.Caused by Motor Pinion Gear Key Backed Out of Keyway & Sheared Off.Set Screw Added to Operator Key
type: Subject
label: 05000312/LER-1981-014-03, /03L-0:on 810306,unacceptable Leak Rate Obtained During Local Component Leak Rate Test on Reactor Bldg Penetration 34.Caused by Motor Pinion Gear Key Backed Out of Keyway & Sheared Off.Set Screw Added to Operator Key
page: https://kanterella.com/05000312/LER-2D1981-2D014-2D03-2C_/03L-2D0-3Aon_810306-2Cunacceptable_Leak_Rate_Obtained_During_Local_Component_Leak_Rate_Test_on_Reactor_Bldg_Penetration_34.Caused_by_Motor_Pin…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-014-03, /03L-0:on 810306,unacceptable Leak Rate Obtained During Local Component Leak Rate Test on Reactor Bldg Penetration 34.Caused by Motor Pinion Gear Key Backed Out of Keyway & Sheared Off.Set Screw Added to Operator Key

04T-0:on 810214,review of Feb 1981 Effluent Charts Showed Tech Spec for Plant Effluent Ph Was Exceeded. Caused by Effluent Diversion Setpoint Being Slightly out-of-tolerance.Setpoints Lowered
type: Subject
label: 05000312/LER-1981-015-04, /04T-0:on 810214,review of Feb 1981 Effluent Charts Showed Tech Spec for Plant Effluent Ph Was Exceeded. Caused by Effluent Diversion Setpoint Being Slightly out-of-tolerance.Setpoints Lowered
page: https://kanterella.com/05000312/LER-2D1981-2D015-2D04-2C_/04T-2D0-3Aon_810214-2Creview_of_Feb_1981_Effluent_Charts_Showed_Tech_Spec_for_Plant_Effluent_Ph_Was_Exceeded._Caused_by_Effluent_Diversion_Set…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-015-04, /04T-0:on 810214,review of Feb 1981 Effluent Charts Showed Tech Spec for Plant Effluent Ph Was Exceeded. Caused by Effluent Diversion Setpoint Being Slightly out-of-tolerance.Setpoints Lowered

E,performing Analysis for IE Bulletin 79-14,informed of Potential Piping Stress Problem on Decay Heat Removal Sys A,Line 26120-10.Caused Not Stated. Sys Use Restricted to Temps & Pressures Below Design Lim
type: Subject
label: 05000312/LER-1981-010-01, /01T-0:on 810225,A/E,performing Analysis for IE Bulletin 79-14,informed of Potential Piping Stress Problem on Decay Heat Removal Sys A,Line 26120-10.Caused Not Stated. Sys Use Restricted to Temps & Pressures Below Design Lim
page: https://kanterella.com/05000312/LER-2D1981-2D010-2D01-2C_/01T-2D0-3Aon_810225-2CA/E-2Cperforming_Analysis_for_IE_Bulletin_79-2D14-2Cinformed_of_Potential_Piping_Stress_Problem_on_Decay_Heat_Removal_Sy…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-010-01, /01T-0:on 810225,A/E,performing Analysis for IE Bulletin 79-14,informed of Potential Piping Stress Problem on Decay Heat Removal Sys A,Line 26120-10.Caused Not Stated. Sys Use Restricted to Temps & Pressures Below Design Lim

Class 1 Breaker & Returned to Svc
type: Subject
label: 05000312/LER-1981-009-03, /03L-0:on 810217,during Testing of Mod to Diesel Generator Room Vent Fans,Breaker 52-3B17 Tripped Free. Cause Undetermined.Breaker Replaced W/Class 1 Breaker & Returned to Svc
page: https://kanterella.com/05000312/LER-2D1981-2D009-2D03-2C_/03L-2D0-3Aon_810217-2Cduring_Testing_of_Mod_to_Diesel_Generator_Room_Vent_Fans-2CBreaker_52-2D3B17_Tripped_Free._Cause_Undetermined.Breaker_Re…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-009-03, /03L-0:on 810217,during Testing of Mod to Diesel Generator Room Vent Fans,Breaker 52-3B17 Tripped Free. Cause Undetermined.Breaker Replaced W/Class 1 Breaker & Returned to Svc

01T-0:on 810218,breaker Did Not Trip During Preventative Maint on Breaker 3A09,RBS Pump P-291A.Caused by Loose Wire on Pigtail of Trip Coil Due to Use of 14-16 Awg Lug on 20 Awg Wire.All Lugs on Pigtail Leads to Be Replaced
type: Subject
label: 05000312/LER-1981-008-01, /01T-0:on 810218,breaker Did Not Trip During Preventative Maint on Breaker 3A09,RBS Pump P-291A.Caused by Loose Wire on Pigtail of Trip Coil Due to Use of 14-16 Awg Lug on 20 Awg Wire.All Lugs on Pigtail Leads to Be Replaced
page: https://kanterella.com/05000312/LER-2D1981-2D008-2D01-2C_/01T-2D0-3Aon_810218-2Cbreaker_Did_Not_Trip_During_Preventative_Maint_on_Breaker_3A09-2CRBS_Pump_P-2D291A.Caused_by_Loose_Wire_on_Pigtail_of_Tr…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-008-01, /01T-0:on 810218,breaker Did Not Trip During Preventative Maint on Breaker 3A09,RBS Pump P-291A.Caused by Loose Wire on Pigtail of Trip Coil Due to Use of 14-16 Awg Lug on 20 Awg Wire.All Lugs on Pigtail Leads to Be Replaced

03L-0:on 810206,one of Two Pressurizer Code Safety valves,PSV-21506,lifted Above Setpoint Level Per Tech Specs During Bench Test.Possibly Caused by Seat Leakage During Test & Limited Capacity of Bench Tester
type: Subject
label: 05000312/LER-1981-006-03, /03L-0:on 810206,one of Two Pressurizer Code Safety valves,PSV-21506,lifted Above Setpoint Level Per Tech Specs During Bench Test.Possibly Caused by Seat Leakage During Test & Limited Capacity of Bench Tester
page: https://kanterella.com/05000312/LER-2D1981-2D006-2D03-2C_/03L-2D0-3Aon_810206-2Cone_of_Two_Pressurizer_Code_Safety_valves-2CPSV-2D21506-2Clifted_Above_Setpoint_Level_Per_Tech_Specs_During_Bench_Test.P…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-006-03, /03L-0:on 810206,one of Two Pressurizer Code Safety valves,PSV-21506,lifted Above Setpoint Level Per Tech Specs During Bench Test.Possibly Caused by Seat Leakage During Test & Limited Capacity of Bench Tester

05000312/LER-1981-023-04, /04T-0:on 810408,plant Liquid Effluent Ph Was Found to Have Dropped Below Tech Spec Limit.Probably Caused by Stagnant,Low Ph Water in Drain Line Due to Gravity Drain of Basin
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D023-2D04-2C_/04T-2D0-3Aon_810408-2Cplant_Liquid_Effluent_Ph_Was_Found_to_Have_Dropped_Below_Tech_Spec_Limit.Probably_Caused_by_Stagnant-2CLow_Ph_Water_in_D…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-023-04, /04T-0:on 810408,plant Liquid Effluent Ph Was Found to Have Dropped Below Tech Spec Limit.Probably Caused by Stagnant,Low Ph Water in Drain Line Due to Gravity Drain of Basin

05000312/LER-1981-022-03, /03L-0:on 810416,safety Sys Hydraulic Snubbers SS-16,SS-17 & 71(MS-20522-SW2) Were Found Low on Fluid Level.Cause Not Stated.Assemblies Reworked
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D022-2D03-2C_/03L-2D0-3Aon_810416-2Csafety_Sys_Hydraulic_Snubbers_SS-2D16-2CSS-2D17_-26_71-28MS-2D20522-2DSW2-29_Were_Found_Low_on_Fluid_Level.Cause_Not_Sta…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-022-03, /03L-0:on 810416,safety Sys Hydraulic Snubbers SS-16,SS-17 & 71(MS-20522-SW2) Were Found Low on Fluid Level.Cause Not Stated.Assemblies Reworked

03L-0:on 810513,partially Failed Pipe Hanger on Main Steam Line a Was Discovered.Weld Holding Clevis to Attachment Plate on Hanger Was Partially Pulled Apart.Cause Unknown.Hangers to Be Reinspected When Operation Resumes
type: Subject
label: 05000312/LER-1981-029-03, /03L-0:on 810513,partially Failed Pipe Hanger on Main Steam Line a Was Discovered.Weld Holding Clevis to Attachment Plate on Hanger Was Partially Pulled Apart.Cause Unknown.Hangers to Be Reinspected When Operation Resumes
page: https://kanterella.com/05000312/LER-2D1981-2D029-2D03-2C_/03L-2D0-3Aon_810513-2Cpartially_Failed_Pipe_Hanger_on_Main_Steam_Line_a_Was_Discovered.Weld_Holding_Clevis_to_Attachment_Plate_on_Hanger_Was_P…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-029-03, /03L-0:on 810513,partially Failed Pipe Hanger on Main Steam Line a Was Discovered.Weld Holding Clevis to Attachment Plate on Hanger Was Partially Pulled Apart.Cause Unknown.Hangers to Be Reinspected When Operation Resumes

01T-0:on 810516,alert Indication Shown on Condenser Air Ejector Radiation Monitor Followed by High Alarm.Caused by Tube Leakage Due to through-wall Crack.Tubes Stabilized & Plugged
type: Subject
label: 05000312/LER-1981-026-01, /01T-0:on 810516,alert Indication Shown on Condenser Air Ejector Radiation Monitor Followed by High Alarm.Caused by Tube Leakage Due to through-wall Crack.Tubes Stabilized & Plugged
page: https://kanterella.com/05000312/LER-2D1981-2D026-2D01-2C_/01T-2D0-3Aon_810516-2Calert_Indication_Shown_on_Condenser_Air_Ejector_Radiation_Monitor_Followed_by_High_Alarm.Caused_by_Tube_Leakage_Due_to_t…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-026-01, /01T-0:on 810516,alert Indication Shown on Condenser Air Ejector Radiation Monitor Followed by High Alarm.Caused by Tube Leakage Due to through-wall Crack.Tubes Stabilized & Plugged

04T-0:on 810317,chlorine Concentration Exceeded Tech Specs Limit.Caused by Lower Flow Rate in One of Two Plant Sewage Sys Sump Pumps,Allowing Excess Hypochlorite Injection.Injection Rate Has Been Decreased
type: Subject
label: 05000312/LER-1981-018-04, /04T-0:on 810317,chlorine Concentration Exceeded Tech Specs Limit.Caused by Lower Flow Rate in One of Two Plant Sewage Sys Sump Pumps,Allowing Excess Hypochlorite Injection.Injection Rate Has Been Decreased
page: https://kanterella.com/05000312/LER-2D1981-2D018-2D04-2C_/04T-2D0-3Aon_810317-2Cchlorine_Concentration_Exceeded_Tech_Specs_Limit.Caused_by_Lower_Flow_Rate_in_One_of_Two_Plant_Sewage_Sys_Sump_Pumps-2CA…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-018-04, /04T-0:on 810317,chlorine Concentration Exceeded Tech Specs Limit.Caused by Lower Flow Rate in One of Two Plant Sewage Sys Sump Pumps,Allowing Excess Hypochlorite Injection.Injection Rate Has Been Decreased

01T-0:on 810312,during Maint Insp of Lube Oil Cooler for HPI Pump B Discovered Substantial Corrosion Products Causing Degradation in Cooling Capacity.Caused by Excessive Corrosion of Cooler Heads
type: Subject
label: 05000312/LER-1981-016-01, /01T-0:on 810312,during Maint Insp of Lube Oil Cooler for HPI Pump B Discovered Substantial Corrosion Products Causing Degradation in Cooling Capacity.Caused by Excessive Corrosion of Cooler Heads
page: https://kanterella.com/05000312/LER-2D1981-2D016-2D01-2C_/01T-2D0-3Aon_810312-2Cduring_Maint_Insp_of_Lube_Oil_Cooler_for_HPI_Pump_B_Discovered_Substantial_Corrosion_Products_Causing_Degradation_in_Coo…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-016-01, /01T-0:on 810312,during Maint Insp of Lube Oil Cooler for HPI Pump B Discovered Substantial Corrosion Products Causing Degradation in Cooling Capacity.Caused by Excessive Corrosion of Cooler Heads

ML19345F270
type: Subject
page: https://kanterella.com/ML19345F270
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19345F270

01T-0:on 800813,while Proceeding to Cold Shutdown,Reactor Protection Sys Was Placed in Shutdown Bypass Mode & Nuclear Overpower Trip Setpoint Not Reduced to Less than 5- of Rated Power.Caused by Personnel Error
type: Subject
label: 05000312/LER-1980-039-01, /01T-0:on 800813,while Proceeding to Cold Shutdown,Reactor Protection Sys Was Placed in Shutdown Bypass Mode & Nuclear Overpower Trip Setpoint Not Reduced to Less than 5% of Rated Power.Caused by Personnel Error
page: https://kanterella.com/05000312/LER-2D1980-2D039-2D01-2C_/01T-2D0-3Aon_800813-2Cwhile_Proceeding_to_Cold_Shutdown-2CReactor_Protection_Sys_Was_Placed_in_Shutdown_Bypass_Mode_-26_Nuclear_Overpower_Trip…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-039-01, /01T-0:on 800813,while Proceeding to Cold Shutdown,Reactor Protection Sys Was Placed in Shutdown Bypass Mode & Nuclear Overpower Trip Setpoint Not Reduced to Less than 5% of Rated Power.Caused by Personnel Error

041-0:on 800710,review of Jul 1980 Effluent Monitoring Charts Indicated Plant Liquid Effluent Ph in Excess of 8.5 Tech Spec Limit.Cause Unknown.Automatic Diversion Setpoint Lowered to Minimize Recurrence
type: Subject
label: 05000312/LER-1980-036-41, /041-0:on 800710,review of Jul 1980 Effluent Monitoring Charts Indicated Plant Liquid Effluent Ph in Excess of 8.5 Tech Spec Limit.Cause Unknown.Automatic Diversion Setpoint Lowered to Minimize Recurrence
page: https://kanterella.com/05000312/LER-2D1980-2D036-2D41-2C_/041-2D0-3Aon_800710-2Creview_of_Jul_1980_Effluent_Monitoring_Charts_Indicated_Plant_Liquid_Effluent_Ph_in_Excess_of_8.5_Tech_Spec_Limit.Cause_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-036-41, /041-0:on 800710,review of Jul 1980 Effluent Monitoring Charts Indicated Plant Liquid Effluent Ph in Excess of 8.5 Tech Spec Limit.Cause Unknown.Automatic Diversion Setpoint Lowered to Minimize Recurrence

Liter Chlorine.Second Followup Sample Not Obtained.Caused by Personnel Error.Personnel Reinstructed
type: Subject
label: 05000312/LER-1980-038-41, /041-0:on 800729,review of Plant Effluent Data for Jul 1980 Indicated That on 800629 & 30,sample Indicated 0.25 & 0.3 Mg/Liter Chlorine.Second Followup Sample Not Obtained.Caused by Personnel Error.Personnel Reinstructed
page: https://kanterella.com/05000312/LER-2D1980-2D038-2D41-2C_/041-2D0-3Aon_800729-2Creview_of_Plant_Effluent_Data_for_Jul_1980_Indicated_That_on_800629_-26_30-2Csample_Indicated_0.25_-26_0.3_Mg/Liter_Chlo…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-038-41, /041-0:on 800729,review of Plant Effluent Data for Jul 1980 Indicated That on 800629 & 30,sample Indicated 0.25 & 0.3 Mg/Liter Chlorine.Second Followup Sample Not Obtained.Caused by Personnel Error.Personnel Reinstructed

04L-0:on 800728,monthly Review of Plant Effluent Recorder Charts Indicated Total Dissolved Solids Discharged Exceeded Tech Specs.Caused by Higher than Normal Flow Rate & High Conductivity
type: Subject
label: 05000312/LER-1980-037-04, /04L-0:on 800728,monthly Review of Plant Effluent Recorder Charts Indicated Total Dissolved Solids Discharged Exceeded Tech Specs.Caused by Higher than Normal Flow Rate & High Conductivity
page: https://kanterella.com/05000312/LER-2D1980-2D037-2D04-2C_/04L-2D0-3Aon_800728-2Cmonthly_Review_of_Plant_Effluent_Recorder_Charts_Indicated_Total_Dissolved_Solids_Discharged_Exceeded_Tech_Specs.Caused_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-037-04, /04L-0:on 800728,monthly Review of Plant Effluent Recorder Charts Indicated Total Dissolved Solids Discharged Exceeded Tech Specs.Caused by Higher than Normal Flow Rate & High Conductivity

03L-0:on 800213,during Refueling,Polar Crane Moved Over Upender When Upenders Contained New & Irradiated Fuel Assemblies.Caused by Personnel Ignorance of Restrictions in Core Monitor.Handling & Disposal Revised
type: Subject
label: 05000312/LER-1980-010-03, /03L-0:on 800213,during Refueling,Polar Crane Moved Over Upender When Upenders Contained New & Irradiated Fuel Assemblies.Caused by Personnel Ignorance of Restrictions in Core Monitor.Handling & Disposal Revised
page: https://kanterella.com/05000312/LER-2D1980-2D010-2D03-2C_/03L-2D0-3Aon_800213-2Cduring_Refueling-2CPolar_Crane_Moved_Over_Upender_When_Upenders_Contained_New_-26_Irradiated_Fuel_Assemblies.Caused_by_P…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-010-03, /03L-0:on 800213,during Refueling,Polar Crane Moved Over Upender When Upenders Contained New & Irradiated Fuel Assemblies.Caused by Personnel Ignorance of Restrictions in Core Monitor.Handling & Disposal Revised

03L-0:on 800207,during Function Tests of Relays in 4,160-volt Feeder Breakers,Contacts Sfax (Sfbx) Found Not Wired.Caused by Discrepancy Between Design & Internal Switchgear Wiring Diagrams.No Changes Necessary
type: Subject
label: 05000312/LER-1980-009-03, /03L-0:on 800207,during Function Tests of Relays in 4,160-volt Feeder Breakers,Contacts Sfax (Sfbx) Found Not Wired.Caused by Discrepancy Between Design & Internal Switchgear Wiring Diagrams.No Changes Necessary
page: https://kanterella.com/05000312/LER-2D1980-2D009-2D03-2C_/03L-2D0-3Aon_800207-2Cduring_Function_Tests_of_Relays_in_4-2C160-2Dvolt_Feeder_Breakers-2CContacts_Sfax_-28Sfbx-29_Found_Not_Wired.Caused_by_D…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-009-03, /03L-0:on 800207,during Function Tests of Relays in 4,160-volt Feeder Breakers,Contacts Sfax (Sfbx) Found Not Wired.Caused by Discrepancy Between Design & Internal Switchgear Wiring Diagrams.No Changes Necessary

05000312/LER-1981-012-01, /01T-0:on 810303,as-found Setpoints for High Reactor Bldg Pressure Trip Were Noted Exceeding Tech Spec. Caused by Instrument Drift.Switches Reset & Setpoints Revised
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D012-2D01-2C_/01T-2D0-3Aon_810303-2Cas-2Dfound_Setpoints_for_High_Reactor_Bldg_Pressure_Trip_Were_Noted_Exceeding_Tech_Spec._Caused_by_Instrument_Drift.Swit…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-012-01, /01T-0:on 810303,as-found Setpoints for High Reactor Bldg Pressure Trip Were Noted Exceeding Tech Spec. Caused by Instrument Drift.Switches Reset & Setpoints Revised

Decay Heat Removal Sys Flow Path Obstructed.Caused by Installation of Blank Test Flanges on Suction Lines.Flanges Removed & Test Procedure Revised
type: Subject
label: 05000312/LER-1981-011-03, /03L-0:on 810217,reactor Bldg Sump/Decay Heat Removal Sys Flow Path Obstructed.Caused by Installation of Blank Test Flanges on Suction Lines.Flanges Removed & Test Procedure Revised
page: https://kanterella.com/05000312/LER-2D1981-2D011-2D03-2C_/03L-2D0-3Aon_810217-2Creactor_Bldg_Sump/Decay_Heat_Removal_Sys_Flow_Path_Obstructed.Caused_by_Installation_of_Blank_Test_Flanges_on_Suction_Li…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-011-03, /03L-0:on 810217,reactor Bldg Sump/Decay Heat Removal Sys Flow Path Obstructed.Caused by Installation of Blank Test Flanges on Suction Lines.Flanges Removed & Test Procedure Revised

ML19345D315
type: Subject
page: https://kanterella.com/ML19345D315
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19345D315

05000312/LER-1981-003-03, /03L-0:on 810203,during Reactor Bldg Spray Sys Loop B Sfas Test,Reactor Bldg Spray Pump B Started Late. Caused by Incorrect Setting on Model 62B Agastat Timer. Timer Reset
type: Subject
page: https://kanterella.com/05000312/LER-2D1981-2D003-2D03-2C_/03L-2D0-3Aon_810203-2Cduring_Reactor_Bldg_Spray_Sys_Loop_B_Sfas_Test-2CReactor_Bldg_Spray_Pump_B_Started_Late._Caused_by_Incorrect_Setting_on_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-003-03, /03L-0:on 810203,during Reactor Bldg Spray Sys Loop B Sfas Test,Reactor Bldg Spray Pump B Started Late. Caused by Incorrect Setting on Model 62B Agastat Timer. Timer Reset

03L-0:on 810202,component Cooling Water Isolation Valve Failed to Close During Surveillance Procedure 205.07C, Isolation Valve Surveillance test,SFV-46204.Caused by Water in Air Line of Valve Actuator.Water Drained
type: Subject
label: 05000312/LER-1981-004-03, /03L-0:on 810202,component Cooling Water Isolation Valve Failed to Close During Surveillance Procedure 205.07C, Isolation Valve Surveillance test,SFV-46204.Caused by Water in Air Line of Valve Actuator.Water Drained
page: https://kanterella.com/05000312/LER-2D1981-2D004-2D03-2C_/03L-2D0-3Aon_810202-2Ccomponent_Cooling_Water_Isolation_Valve_Failed_to_Close_During_Surveillance_Procedure_205.07C-2C_Isolation_Valve_Surveil…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-004-03, /03L-0:on 810202,component Cooling Water Isolation Valve Failed to Close During Surveillance Procedure 205.07C, Isolation Valve Surveillance test,SFV-46204.Caused by Water in Air Line of Valve Actuator.Water Drained

01T-0:on 810210,info Received That Certain safety-related Instrument Errors Exceed Those Assumed in FSAR Analysis.Possibly Caused by String Error Discrepancies. Applicability of Methodology Used in Rept Being Reviewed
type: Subject
label: 05000312/LER-1981-007-01, /01T-0:on 810210,info Received That Certain safety-related Instrument Errors Exceed Those Assumed in FSAR Analysis.Possibly Caused by String Error Discrepancies. Applicability of Methodology Used in Rept Being Reviewed
page: https://kanterella.com/05000312/LER-2D1981-2D007-2D01-2C_/01T-2D0-3Aon_810210-2Cinfo_Received_That_Certain_safety-2Drelated_Instrument_Errors_Exceed_Those_Assumed_in_FSAR_Analysis.Possibly_Caused_by_S…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1981-007-01, /01T-0:on 810210,info Received That Certain safety-related Instrument Errors Exceed Those Assumed in FSAR Analysis.Possibly Caused by String Error Discrepancies. Applicability of Methodology Used in Rept Being Reviewed

04T-0:on 810105,environ TLD Monitor Along Perimeter Fence Indicated Dose Rates Above Tech Spec.Caused by Close Proximity to Drum Storage Area.Bulk Radwaste Storage Bldg Will Be Constructed
type: Subject
label: 05000312/LER-1980-050-04, /04T-0:on 810105,environ TLD Monitor Along Perimeter Fence Indicated Dose Rates Above Tech Spec.Caused by Close Proximity to Drum Storage Area.Bulk Radwaste Storage Bldg Will Be Constructed
page: https://kanterella.com/05000312/LER-2D1980-2D050-2D04-2C_/04T-2D0-3Aon_810105-2Cenviron_TLD_Monitor_Along_Perimeter_Fence_Indicated_Dose_Rates_Above_Tech_Spec.Caused_by_Close_Proximity_to_Drum_Storage…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-050-04, /04T-0:on 810105,environ TLD Monitor Along Perimeter Fence Indicated Dose Rates Above Tech Spec.Caused by Close Proximity to Drum Storage Area.Bulk Radwaste Storage Bldg Will Be Constructed

ML19340B524
type: Subject
page: https://kanterella.com/ML19340B524
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19340B524

ML19340D162
type: Subject
page: https://kanterella.com/ML19340D162
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19340D162

ML19340D380
type: Subject
page: https://kanterella.com/ML19340D380
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19340D380

ML19340E720
type: Subject
page: https://kanterella.com/ML19340E720
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19340E720

ML19347F074
type: Subject
page: https://kanterella.com/ML19347F074
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19347F074

04T-0:on 801009,six of 19 Environ TLD Monitors Indicated Dose Rates Above Tech Specs,App B,Requirements. Caused by TLD Being Passed Through X-ray Prior to Being Brought Onsite.Tld No Longer Passed Through Machines
type: Subject
label: 05000312/LER-1980-042-04, /04T-0:on 801009,six of 19 Environ TLD Monitors Indicated Dose Rates Above Tech Specs,App B,Requirements. Caused by TLD Being Passed Through X-ray Prior to Being Brought Onsite.Tld No Longer Passed Through Machines
page: https://kanterella.com/05000312/LER-2D1980-2D042-2D04-2C_/04T-2D0-3Aon_801009-2Csix_of_19_Environ_TLD_Monitors_Indicated_Dose_Rates_Above_Tech_Specs-2CApp_B-2CRequirements._Caused_by_TLD_Being_Passed_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-042-04, /04T-0:on 801009,six of 19 Environ TLD Monitors Indicated Dose Rates Above Tech Specs,App B,Requirements. Caused by TLD Being Passed Through X-ray Prior to Being Brought Onsite.Tld No Longer Passed Through Machines

05000312/LER-1980-041-03, /03L-0:on 800823,diesel Generator B Did Not Achieve Rated Voltage of 4,160 Volts.Caused by Voltage Regulator.Unit Was Reset & Successfully Tested
type: Subject
page: https://kanterella.com/05000312/LER-2D1980-2D041-2D03-2C_/03L-2D0-3Aon_800823-2Cdiesel_Generator_B_Did_Not_Achieve_Rated_Voltage_of_4-2C160_Volts.Caused_by_Voltage_Regulator.Unit_Was_Reset_-26_Success…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-041-03, /03L-0:on 800823,diesel Generator B Did Not Achieve Rated Voltage of 4,160 Volts.Caused by Voltage Regulator.Unit Was Reset & Successfully Tested

ML20003F443
type: Subject
page: https://kanterella.com/ML20003F443
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20003F443

ML20052G597
type: Subject
page: https://kanterella.com/ML20052G597
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20052G597

ML19345G266
type: Subject
page: https://kanterella.com/ML19345G266
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19345G266

ML19345D695
type: Subject
page: https://kanterella.com/ML19345D695
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19345D695

ML20040H371
type: Subject
page: https://kanterella.com/ML20040H371
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML20040H371

ML19346A413
type: Subject
page: https://kanterella.com/ML19346A413
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19346A413

03L-0:on 800812,reactor Protection Sys Channel D Trip Signal Was Received.Caused by Amplifier Failure in Electronic Portion of Transmitter.Transmitter Replaced, Calibr,Leak Tested & Returned to Svc
type: Subject
label: 05000312/LER-1980-040-03, /03L-0:on 800812,reactor Protection Sys Channel D Trip Signal Was Received.Caused by Amplifier Failure in Electronic Portion of Transmitter.Transmitter Replaced, Calibr,Leak Tested & Returned to Svc
page: https://kanterella.com/05000312/LER-2D1980-2D040-2D03-2C_/03L-2D0-3Aon_800812-2Creactor_Protection_Sys_Channel_D_Trip_Signal_Was_Received.Caused_by_Amplifier_Failure_in_Electronic_Portion_of_Transmitt…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-040-03, /03L-0:on 800812,reactor Protection Sys Channel D Trip Signal Was Received.Caused by Amplifier Failure in Electronic Portion of Transmitter.Transmitter Replaced, Calibr,Leak Tested & Returned to Svc

041-0:on 800703,plant Effluent Ph Momentarily Exceeded Acceptable Operating Band.Caused by Small Vol of off-std Water Being Trapped in Waste or Dilution Water Conduits.Automatic Diversion Sys Realigns Water Offsite
type: Subject
label: 05000312/LER-1980-035-41, /041-0:on 800703,plant Effluent Ph Momentarily Exceeded Acceptable Operating Band.Caused by Small Vol of off-std Water Being Trapped in Waste or Dilution Water Conduits.Automatic Diversion Sys Realigns Water Offsite
page: https://kanterella.com/05000312/LER-2D1980-2D035-2D41-2C_/041-2D0-3Aon_800703-2Cplant_Effluent_Ph_Momentarily_Exceeded_Acceptable_Operating_Band.Caused_by_Small_Vol_of_off-2Dstd_Water_Being_Trapped_in…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-035-41, /041-0:on 800703,plant Effluent Ph Momentarily Exceeded Acceptable Operating Band.Caused by Small Vol of off-std Water Being Trapped in Waste or Dilution Water Conduits.Automatic Diversion Sys Realigns Water Offsite

05000312/LER-1980-034-04, /04L-0:on 800602,review of June 1980 Effluent Monitoring Charts Indicated Liquid Effluent Ph Exceeded Tech Specs.Caused by Recurring Problem
type: Subject
page: https://kanterella.com/05000312/LER-2D1980-2D034-2D04-2C_/04L-2D0-3Aon_800602-2Creview_of_June_1980_Effluent_Monitoring_Charts_Indicated_Liquid_Effluent_Ph_Exceeded_Tech_Specs.Caused_by_Recurring_Prob…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-034-04, /04L-0:on 800602,review of June 1980 Effluent Monitoring Charts Indicated Liquid Effluent Ph Exceeded Tech Specs.Caused by Recurring Problem

04T-0:on 800709,two Environ TLD Monitors Indicated Dose Rates Above Tech Spec App B Rept Level for Second Quarter 1980.Apparently Caused by Air Scattered Albedo & Location of Two Radioactive Matl Storage Trailers
type: Subject
label: 05000312/LER-1980-033-04, /04T-0:on 800709,two Environ TLD Monitors Indicated Dose Rates Above Tech Spec App B Rept Level for Second Quarter 1980.Apparently Caused by Air Scattered Albedo & Location of Two Radioactive Matl Storage Trailers
page: https://kanterella.com/05000312/LER-2D1980-2D033-2D04-2C_/04T-2D0-3Aon_800709-2Ctwo_Environ_TLD_Monitors_Indicated_Dose_Rates_Above_Tech_Spec_App_B_Rept_Level_for_Second_Quarter_1980.Apparently_Caused…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-033-04, /04T-0:on 800709,two Environ TLD Monitors Indicated Dose Rates Above Tech Spec App B Rept Level for Second Quarter 1980.Apparently Caused by Air Scattered Albedo & Location of Two Radioactive Matl Storage Trailers

03L-0:on 800703,during Review of IE Bulletin 79-14 Work,Found Stress Analysis for Nonconforming Pipe Support Was Overlooked.Caused by Design Documentation & Const Drawings Not Conforming to Seismic Analysis
type: Subject
label: 05000312/LER-1980-031-03, /03L-0:on 800703,during Review of IE Bulletin 79-14 Work,Found Stress Analysis for Nonconforming Pipe Support Was Overlooked.Caused by Design Documentation & Const Drawings Not Conforming to Seismic Analysis
page: https://kanterella.com/05000312/LER-2D1980-2D031-2D03-2C_/03L-2D0-3Aon_800703-2Cduring_Review_of_IE_Bulletin_79-2D14_Work-2CFound_Stress_Analysis_for_Nonconforming_Pipe_Support_Was_Overlooked.Caused_b…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-031-03, /03L-0:on 800703,during Review of IE Bulletin 79-14 Work,Found Stress Analysis for Nonconforming Pipe Support Was Overlooked.Caused by Design Documentation & Const Drawings Not Conforming to Seismic Analysis

03L-0:on 800712,during Routine Surveillance Test on Auxiliary Feedwater pump,P-318,pump Failed to Start from Control Room.Cause Undetermined.After Successfully Starting for Five Days,Pump Returned to Svc
type: Subject
label: 05000312/LER-1980-032-03, /03L-0:on 800712,during Routine Surveillance Test on Auxiliary Feedwater pump,P-318,pump Failed to Start from Control Room.Cause Undetermined.After Successfully Starting for Five Days,Pump Returned to Svc
page: https://kanterella.com/05000312/LER-2D1980-2D032-2D03-2C_/03L-2D0-3Aon_800712-2Cduring_Routine_Surveillance_Test_on_Auxiliary_Feedwater_pump-2CP-2D318-2Cpump_Failed_to_Start_from_Control_Room.Cause_Un…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-032-03, /03L-0:on 800712,during Routine Surveillance Test on Auxiliary Feedwater pump,P-318,pump Failed to Start from Control Room.Cause Undetermined.After Successfully Starting for Five Days,Pump Returned to Svc

ML19331C732
type: Subject
page: https://kanterella.com/ML19331C732
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19331C732

01T-0:on 800508,ATOG Analysis Showed Calculation of Offsite Dose Following once-through Steam Generator Tube Rupture May Be Higher than FSAR Figure.Operator Guidelines & Revised FSAR Analysis Will Be Developed
type: Subject
label: 05000312/LER-1980-026-01, /01T-0:on 800508,ATOG Analysis Showed Calculation of Offsite Dose Following once-through Steam Generator Tube Rupture May Be Higher than FSAR Figure.Operator Guidelines & Revised FSAR Analysis Will Be Developed
page: https://kanterella.com/05000312/LER-2D1980-2D026-2D01-2C_/01T-2D0-3Aon_800508-2CATOG_Analysis_Showed_Calculation_of_Offsite_Dose_Following_once-2Dthrough_Steam_Generator_Tube_Rupture_May_Be_Higher_tha…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-026-01, /01T-0:on 800508,ATOG Analysis Showed Calculation of Offsite Dose Following once-through Steam Generator Tube Rupture May Be Higher than FSAR Figure.Operator Guidelines & Revised FSAR Analysis Will Be Developed

03L-0:on 800508,during Periodic Insp of Accessible Safety Sys Hydraulic Snubbers,Discovered That Snubber Was Inoperable.Caused by Low Oil Level.No Seal Leakage Was Evident.Unit Refilled & Declared Operable
type: Subject
label: 05000312/LER-1980-027-03, /03L-0:on 800508,during Periodic Insp of Accessible Safety Sys Hydraulic Snubbers,Discovered That Snubber Was Inoperable.Caused by Low Oil Level.No Seal Leakage Was Evident.Unit Refilled & Declared Operable
page: https://kanterella.com/05000312/LER-2D1980-2D027-2D03-2C_/03L-2D0-3Aon_800508-2Cduring_Periodic_Insp_of_Accessible_Safety_Sys_Hydraulic_Snubbers-2CDiscovered_That_Snubber_Was_Inoperable.Caused_by_Low_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-027-03, /03L-0:on 800508,during Periodic Insp of Accessible Safety Sys Hydraulic Snubbers,Discovered That Snubber Was Inoperable.Caused by Low Oil Level.No Seal Leakage Was Evident.Unit Refilled & Declared Operable

ML19329D904
type: Subject
page: https://kanterella.com/ML19329D904
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19329D904

03L-0:on 800322,after Manually Opening SFV-25003 Several Turns to Increase Level in Pressurizer,Valve Failed to Close Electrically.Caused by Excessive Wear to Shaft Clutch & Clutch Gear.Defective Parts Replaced
type: Subject
label: 05000312/LER-1980-017-03, /03L-0:on 800322,after Manually Opening SFV-25003 Several Turns to Increase Level in Pressurizer,Valve Failed to Close Electrically.Caused by Excessive Wear to Shaft Clutch & Clutch Gear.Defective Parts Replaced
page: https://kanterella.com/05000312/LER-2D1980-2D017-2D03-2C_/03L-2D0-3Aon_800322-2Cafter_Manually_Opening_SFV-2D25003_Several_Turns_to_Increase_Level_in_Pressurizer-2CValve_Failed_to_Close_Electrically.C…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-017-03, /03L-0:on 800322,after Manually Opening SFV-25003 Several Turns to Increase Level in Pressurizer,Valve Failed to Close Electrically.Caused by Excessive Wear to Shaft Clutch & Clutch Gear.Defective Parts Replaced

ML19320B987
type: Subject
page: https://kanterella.com/ML19320B987
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19320B987

ML19350D224
type: Subject
page: https://kanterella.com/ML19350D224
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19350D224

03X-1:on 771001,borated Water Storage Tank Isolation Valve Motor Operator Failed.Caused by Manual Operation.Damaged Parts Replaced & Operator Returned to Svc. Automatic Cycling Restrictions Imposed.Updates RO-77-12
type: Subject
label: 05000312/LER-1977-012-03, /03X-1:on 771001,borated Water Storage Tank Isolation Valve Motor Operator Failed.Caused by Manual Operation.Damaged Parts Replaced & Operator Returned to Svc. Automatic Cycling Restrictions Imposed.Updates RO-77-12
page: https://kanterella.com/05000312/LER-2D1977-2D012-2D03-2C_/03X-2D1-3Aon_771001-2Cborated_Water_Storage_Tank_Isolation_Valve_Motor_Operator_Failed.Caused_by_Manual_Operation.Damaged_Parts_Replaced_-26_O…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1977-012-03, /03X-1:on 771001,borated Water Storage Tank Isolation Valve Motor Operator Failed.Caused by Manual Operation.Damaged Parts Replaced & Operator Returned to Svc. Automatic Cycling Restrictions Imposed.Updates RO-77-12

05000312/LER-1978-011-01, /01T-0:on 780914,required Continual Fire Watch Erroneously Terminated.Caused by Shift Personnel Misunderstanding.Personnel Instructed
type: Subject
page: https://kanterella.com/05000312/LER-2D1978-2D011-2D01-2C_/01T-2D0-3Aon_780914-2Crequired_Continual_Fire_Watch_Erroneously_Terminated.Caused_by_Shift_Personnel_Misunderstanding.Personnel_Instructed
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-011-01, /01T-0:on 780914,required Continual Fire Watch Erroneously Terminated.Caused by Shift Personnel Misunderstanding.Personnel Instructed

ethylene-propylene Seals.Apparently One Seal Was Missed
type: Subject
label: 05000312/LER-1977-016-03, /03X-1:on 780105,fluid Leakage Discovered on 781129 Traced to Failing Polyurethene O-ring.All Bergen- Patterson Snubber Polyurethane Seals Were Replaced w/ethylene-propylene Seals.Apparently One Seal Was Missed
page: https://kanterella.com/05000312/LER-2D1977-2D016-2D03-2C_/03X-2D1-3Aon_780105-2Cfluid_Leakage_Discovered_on_781129_Traced_to_Failing_Polyurethene_O-2Dring.All_Bergen-2D_Patterson_Snubber_Polyurethane_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1977-016-03, /03X-1:on 780105,fluid Leakage Discovered on 781129 Traced to Failing Polyurethene O-ring.All Bergen- Patterson Snubber Polyurethane Seals Were Replaced w/ethylene-propylene Seals.Apparently One Seal Was Missed

03L-0:on 800623,while Performing I-108C,reactor Protection Sys Channel C Test,Overpower Bistable Voltage Setting Was Found Drifted Out of Spec.Caused by Malfunctioning of Semiconductor Voltage Regulator
type: Subject
label: 05000312/LER-1980-030-03, /03L-0:on 800623,while Performing I-108C,reactor Protection Sys Channel C Test,Overpower Bistable Voltage Setting Was Found Drifted Out of Spec.Caused by Malfunctioning of Semiconductor Voltage Regulator
page: https://kanterella.com/05000312/LER-2D1980-2D030-2D03-2C_/03L-2D0-3Aon_800623-2Cwhile_Performing_I-2D108C-2Creactor_Protection_Sys_Channel_C_Test-2COverpower_Bistable_Voltage_Setting_Was_Found_Drifted…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-030-03, /03L-0:on 800623,while Performing I-108C,reactor Protection Sys Channel C Test,Overpower Bistable Voltage Setting Was Found Drifted Out of Spec.Caused by Malfunctioning of Semiconductor Voltage Regulator

01T-0:on 780509,four Main Steam Code Safety Valves Found Improperly Set in Nonconservative Direction. Caused by Procedural Inadequacy.Maint Procedure Included Hydroset Curve for One Type Orifice.Procedure Revised
type: Subject
label: 05000312/LER-1978-005-01, /01T-0:on 780509,four Main Steam Code Safety Valves Found Improperly Set in Nonconservative Direction. Caused by Procedural Inadequacy.Maint Procedure Included Hydroset Curve for One Type Orifice.Procedure Revised
page: https://kanterella.com/05000312/LER-2D1978-2D005-2D01-2C_/01T-2D0-3Aon_780509-2Cfour_Main_Steam_Code_Safety_Valves_Found_Improperly_Set_in_Nonconservative_Direction._Caused_by_Procedural_Inadequacy.Ma…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-005-01, /01T-0:on 780509,four Main Steam Code Safety Valves Found Improperly Set in Nonconservative Direction. Caused by Procedural Inadequacy.Maint Procedure Included Hydroset Curve for One Type Orifice.Procedure Revised

ML19319C687
type: Subject
page: https://kanterella.com/ML19319C687
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19319C687

04T-0:on 800519,May 1980 Effluent Monitoring Charts Indictaed Effluent Ph Exceeded 8.5 Tech Spec Limit. Caused by Ph Fluctuations in Dilution Water,Common Phenomenon in Summer Months
type: Subject
label: 05000312/LER-1980-029-04, /04T-0:on 800519,May 1980 Effluent Monitoring Charts Indictaed Effluent Ph Exceeded 8.5 Tech Spec Limit. Caused by Ph Fluctuations in Dilution Water,Common Phenomenon in Summer Months
page: https://kanterella.com/05000312/LER-2D1980-2D029-2D04-2C_/04T-2D0-3Aon_800519-2CMay_1980_Effluent_Monitoring_Charts_Indictaed_Effluent_Ph_Exceeded_8.5_Tech_Spec_Limit._Caused_by_Ph_Fluctuations_in_Dil…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-029-04, /04T-0:on 800519,May 1980 Effluent Monitoring Charts Indictaed Effluent Ph Exceeded 8.5 Tech Spec Limit. Caused by Ph Fluctuations in Dilution Water,Common Phenomenon in Summer Months

01T-0:on 800609,review of Safety Features Actuation Sys Revealed That If One Inverter Was Out of Svc, Failure of Remaining Inverter Would Disable Sys.Operational Restrictions Placed on Inverter Operability
type: Subject
label: 05000312/LER-1980-028-01, /01T-0:on 800609,review of Safety Features Actuation Sys Revealed That If One Inverter Was Out of Svc, Failure of Remaining Inverter Would Disable Sys.Operational Restrictions Placed on Inverter Operability
page: https://kanterella.com/05000312/LER-2D1980-2D028-2D01-2C_/01T-2D0-3Aon_800609-2Creview_of_Safety_Features_Actuation_Sys_Revealed_That_If_One_Inverter_Was_Out_of_Svc-2C_Failure_of_Remaining_Inverter_Wo…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-028-01, /01T-0:on 800609,review of Safety Features Actuation Sys Revealed That If One Inverter Was Out of Svc, Failure of Remaining Inverter Would Disable Sys.Operational Restrictions Placed on Inverter Operability

ML19319D988
type: Subject
page: https://kanterella.com/ML19319D988
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19319D988

04T-0:on 780414,hypochlorite Spilled & Flushed Into Drain Sys During Hypochlorite Chemical Tank Filling, Causing Chlorine Levels to Exceed Limits.Fill Line Will Be Capped Prior to Removal & Spills Will Not Be Flushed
type: Subject
label: 05000312/LER-1978-002-04, /04T-0:on 780414,hypochlorite Spilled & Flushed Into Drain Sys During Hypochlorite Chemical Tank Filling, Causing Chlorine Levels to Exceed Limits.Fill Line Will Be Capped Prior to Removal & Spills Will Not Be Flushed
page: https://kanterella.com/05000312/LER-2D1978-2D002-2D04-2C_/04T-2D0-3Aon_780414-2Chypochlorite_Spilled_-26_Flushed_Into_Drain_Sys_During_Hypochlorite_Chemical_Tank_Filling-2C_Causing_Chlorine_Levels_to_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-002-04, /04T-0:on 780414,hypochlorite Spilled & Flushed Into Drain Sys During Hypochlorite Chemical Tank Filling, Causing Chlorine Levels to Exceed Limits.Fill Line Will Be Capped Prior to Removal & Spills Will Not Be Flushed

04T-0:on 780109,plant Liquid Effluent Ph Levels Exceeded Tech Spec 8.5 Limit.Ph Sensor Setpoint Raised in Summer to Folson South Canal Ph Level & Not Reset When Ph Level Dropped,Eliminating Automatic Diversion Feature
type: Subject
label: 05000312/LER-1978-001-04, /04T-0:on 780109,plant Liquid Effluent Ph Levels Exceeded Tech Spec 8.5 Limit.Ph Sensor Setpoint Raised in Summer to Folson South Canal Ph Level & Not Reset When Ph Level Dropped,Eliminating Automatic Diversion Feature
page: https://kanterella.com/05000312/LER-2D1978-2D001-2D04-2C_/04T-2D0-3Aon_780109-2Cplant_Liquid_Effluent_Ph_Levels_Exceeded_Tech_Spec_8.5_Limit.Ph_Sensor_Setpoint_Raised_in_Summer_to_Folson_South_Canal_P…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-001-04, /04T-0:on 780109,plant Liquid Effluent Ph Levels Exceeded Tech Spec 8.5 Limit.Ph Sensor Setpoint Raised in Summer to Folson South Canal Ph Level & Not Reset When Ph Level Dropped,Eliminating Automatic Diversion Feature

03L-0:on 780228,safety Sys Hydraulic Snubbers 25 & 26 Found Low on Fluid During Visual Insp.No Leakage Found. Cause Not Determined.Snubbers Refilled & Surveillance Interval Reduced to Six Months
type: Subject
label: 05000312/LER-1978-002-03, /03L-0:on 780228,safety Sys Hydraulic Snubbers 25 & 26 Found Low on Fluid During Visual Insp.No Leakage Found. Cause Not Determined.Snubbers Refilled & Surveillance Interval Reduced to Six Months
page: https://kanterella.com/05000312/LER-2D1978-2D002-2D03-2C_/03L-2D0-3Aon_780228-2Csafety_Sys_Hydraulic_Snubbers_25_-26_26_Found_Low_on_Fluid_During_Visual_Insp.No_Leakage_Found._Cause_Not_Determined.Snu…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-002-03, /03L-0:on 780228,safety Sys Hydraulic Snubbers 25 & 26 Found Low on Fluid During Visual Insp.No Leakage Found. Cause Not Determined.Snubbers Refilled & Surveillance Interval Reduced to Six Months

ML19317F999
type: Subject
page: https://kanterella.com/ML19317F999
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F999

ML19317G002
type: Subject
page: https://kanterella.com/ML19317G002
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G002

03L-0:on 780622,frequent Makeup Tank Level Changes Observed.Caused by Excessive Leakage from B Decay Heat Removal Sys Pump Seal.Pump Valved Out & Sys a Continued Operation.Leaking Seal Replaced
type: Subject
label: 05000312/LER-1978-007-03, /03L-0:on 780622,frequent Makeup Tank Level Changes Observed.Caused by Excessive Leakage from B Decay Heat Removal Sys Pump Seal.Pump Valved Out & Sys a Continued Operation.Leaking Seal Replaced
page: https://kanterella.com/05000312/LER-2D1978-2D007-2D03-2C_/03L-2D0-3Aon_780622-2Cfrequent_Makeup_Tank_Level_Changes_Observed.Caused_by_Excessive_Leakage_from_B_Decay_Heat_Removal_Sys_Pump_Seal.Pump_Val…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-007-03, /03L-0:on 780622,frequent Makeup Tank Level Changes Observed.Caused by Excessive Leakage from B Decay Heat Removal Sys Pump Seal.Pump Valved Out & Sys a Continued Operation.Leaking Seal Replaced

ML19318A353
type: Subject
page: https://kanterella.com/ML19318A353
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19318A353

ML19317F913
type: Subject
page: https://kanterella.com/ML19317F913
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F913

ML19317F980
type: Subject
page: https://kanterella.com/ML19317F980
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F980

ML19317F784
type: Subject
page: https://kanterella.com/ML19317F784
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F784

ML19317F804
type: Subject
page: https://kanterella.com/ML19317F804
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F804

ML19317G008
type: Subject
page: https://kanterella.com/ML19317G008
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G008

ML19317F996
type: Subject
page: https://kanterella.com/ML19317F996
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F996

ML19317F793
type: Subject
page: https://kanterella.com/ML19317F793
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F793

ML19317G010
type: Subject
page: https://kanterella.com/ML19317G010
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G010

ML19317G039
type: Subject
page: https://kanterella.com/ML19317G039
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G039

ML19317G057
type: Subject
page: https://kanterella.com/ML19317G057
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G057

ML19317F977
type: Subject
page: https://kanterella.com/ML19317F977
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F977

ML19317G107
type: Subject
page: https://kanterella.com/ML19317G107
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G107

ML19317G016
type: Subject
page: https://kanterella.com/ML19317G016
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G016

ML19317G012
type: Subject
page: https://kanterella.com/ML19317G012
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G012

ML19317G031
type: Subject
page: https://kanterella.com/ML19317G031
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G031

ML19317F976
type: Subject
page: https://kanterella.com/ML19317F976
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F976

ML19317G022
type: Subject
page: https://kanterella.com/ML19317G022
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G022

ML19317G026
type: Subject
page: https://kanterella.com/ML19317G026
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G026

ML19317F964
type: Subject
page: https://kanterella.com/ML19317F964
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F964

ML19317G046
type: Subject
page: https://kanterella.com/ML19317G046
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G046

03L-0:on 800406,during Performance of Sp 203.01A, Sfas Digital Channel 1A Refueling Test Breaker for a Nsrw Pump P-472A Did Not Close.Caused by Accumulation of Old Lubricant & Dirt on Closing Linkage.Linkage Cleaned
type: Subject
label: 05000312/LER-1980-019-03, /03L-0:on 800406,during Performance of Sp 203.01A, Sfas Digital Channel 1A Refueling Test Breaker for a Nsrw Pump P-472A Did Not Close.Caused by Accumulation of Old Lubricant & Dirt on Closing Linkage.Linkage Cleaned
page: https://kanterella.com/05000312/LER-2D1980-2D019-2D03-2C_/03L-2D0-3Aon_800406-2Cduring_Performance_of_Sp_203.01A-2C_Sfas_Digital_Channel_1A_Refueling_Test_Breaker_for_a_Nsrw_Pump_P-2D472A_Did_Not_Clos…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-019-03, /03L-0:on 800406,during Performance of Sp 203.01A, Sfas Digital Channel 1A Refueling Test Breaker for a Nsrw Pump P-472A Did Not Close.Caused by Accumulation of Old Lubricant & Dirt on Closing Linkage.Linkage Cleaned

03L-0:on 800409,during Performance Test,A Generator Failed to Meet Time Criteria to Reach Full Voltage.Caused by Uncoupled Governor Accumulator Booster Pump.New Coupling Fabricated & Installed
type: Subject
label: 05000312/LER-1980-024-03, /03L-0:on 800409,during Performance Test,A Generator Failed to Meet Time Criteria to Reach Full Voltage.Caused by Uncoupled Governor Accumulator Booster Pump.New Coupling Fabricated & Installed
page: https://kanterella.com/05000312/LER-2D1980-2D024-2D03-2C_/03L-2D0-3Aon_800409-2Cduring_Performance_Test-2CA_Generator_Failed_to_Meet_Time_Criteria_to_Reach_Full_Voltage.Caused_by_Uncoupled_Governor_Ac…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-024-03, /03L-0:on 800409,during Performance Test,A Generator Failed to Meet Time Criteria to Reach Full Voltage.Caused by Uncoupled Governor Accumulator Booster Pump.New Coupling Fabricated & Installed

03L-0:on 800406,refueling Test Revealed Valve Sfv 53603 Returned to Open Position After Signal Reset.Caused by Sticking Blpb Open Contacts.Blpb Replaced & Valve Successfully Tested
type: Subject
label: 05000312/LER-1980-022-03, /03L-0:on 800406,refueling Test Revealed Valve Sfv 53603 Returned to Open Position After Signal Reset.Caused by Sticking Blpb Open Contacts.Blpb Replaced & Valve Successfully Tested
page: https://kanterella.com/05000312/LER-2D1980-2D022-2D03-2C_/03L-2D0-3Aon_800406-2Crefueling_Test_Revealed_Valve_Sfv_53603_Returned_to_Open_Position_After_Signal_Reset.Caused_by_Sticking_Blpb_Open_Contac…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-022-03, /03L-0:on 800406,refueling Test Revealed Valve Sfv 53603 Returned to Open Position After Signal Reset.Caused by Sticking Blpb Open Contacts.Blpb Replaced & Valve Successfully Tested

01T-0:on 800414,vendor Notified Util That Representation for Specific Valves Will Not Be Provided Re Reliability & Operation for Other than Saturated Steam Svc. Cause Not Stated.Test Program Will Be Conducted
type: Subject
label: 05000312/LER-1980-023-01, /01T-0:on 800414,vendor Notified Util That Representation for Specific Valves Will Not Be Provided Re Reliability & Operation for Other than Saturated Steam Svc. Cause Not Stated.Test Program Will Be Conducted
page: https://kanterella.com/05000312/LER-2D1980-2D023-2D01-2C_/01T-2D0-3Aon_800414-2Cvendor_Notified_Util_That_Representation_for_Specific_Valves_Will_Not_Be_Provided_Re_Reliability_-26_Operation_for_Other…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-023-01, /01T-0:on 800414,vendor Notified Util That Representation for Specific Valves Will Not Be Provided Re Reliability & Operation for Other than Saturated Steam Svc. Cause Not Stated.Test Program Will Be Conducted

04T-0: on 800318,review of Previous Month Plant Effluent Records Indicated That Effluent Ph Exceeded 8.5 for Approx 3-h.Caused by Canal Pumping Station Being Out of Svc for Approx Two Months
type: Subject
label: 05000312/LER-1980-021-04, /04T-0: on 800318,review of Previous Month Plant Effluent Records Indicated That Effluent Ph Exceeded 8.5 for Approx 3-h.Caused by Canal Pumping Station Being Out of Svc for Approx Two Months
page: https://kanterella.com/05000312/LER-2D1980-2D021-2D04-2C_/04T-2D0-3A_on_800318-2Creview_of_Previous_Month_Plant_Effluent_Records_Indicated_That_Effluent_Ph_Exceeded_8.5_for_Approx_3-2Dh.Caused_by_Cana…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-021-04, /04T-0: on 800318,review of Previous Month Plant Effluent Records Indicated That Effluent Ph Exceeded 8.5 for Approx 3-h.Caused by Canal Pumping Station Being Out of Svc for Approx Two Months

05000312/LER-1980-018-03, /03L-0:on 800324,pressurizer Gas Sample Valve, SFV-72502 Failed to Close.Caused by Wire Separation in Valve Control Circuitry.Wire Reconnected to Terminal Lug
type: Subject
page: https://kanterella.com/05000312/LER-2D1980-2D018-2D03-2C_/03L-2D0-3Aon_800324-2Cpressurizer_Gas_Sample_Valve-2C_SFV-2D72502_Failed_to_Close.Caused_by_Wire_Separation_in_Valve_Control_Circuitry.Wire_Re…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-018-03, /03L-0:on 800324,pressurizer Gas Sample Valve, SFV-72502 Failed to Close.Caused by Wire Separation in Valve Control Circuitry.Wire Reconnected to Terminal Lug

01T-0:on 800312,during Visual Insp of Cycle 3 Discharge Fuel,Approx 4 Inches of Cladding Discovered Missing from Fuel Assembly 1C47.Caused by Cladding Defect on One Pin.Insignificant Amounts of Fuel Dispersed
type: Subject
label: 05000312/LER-1980-015-01, /01T-0:on 800312,during Visual Insp of Cycle 3 Discharge Fuel,Approx 4 Inches of Cladding Discovered Missing from Fuel Assembly 1C47.Caused by Cladding Defect on One Pin.Insignificant Amounts of Fuel Dispersed
page: https://kanterella.com/05000312/LER-2D1980-2D015-2D01-2C_/01T-2D0-3Aon_800312-2Cduring_Visual_Insp_of_Cycle_3_Discharge_Fuel-2CApprox_4_Inches_of_Cladding_Discovered_Missing_from_Fuel_Assembly_1C47.Ca…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-015-01, /01T-0:on 800312,during Visual Insp of Cycle 3 Discharge Fuel,Approx 4 Inches of Cladding Discovered Missing from Fuel Assembly 1C47.Caused by Cladding Defect on One Pin.Insignificant Amounts of Fuel Dispersed

03L-0:on 800310,while Performing IE Bulletin 79-14 Requirements,Seismic Analysis of Supports 1S-50052-1A, 1S-50062-1A & 1S-23626-1 Indicated Seismic Stress Would Exceed Allowable Limit.Supports Modified
type: Subject
label: 05000312/LER-1980-016-03, /03L-0:on 800310,while Performing IE Bulletin 79-14 Requirements,Seismic Analysis of Supports 1S-50052-1A, 1S-50062-1A & 1S-23626-1 Indicated Seismic Stress Would Exceed Allowable Limit.Supports Modified
page: https://kanterella.com/05000312/LER-2D1980-2D016-2D03-2C_/03L-2D0-3Aon_800310-2Cwhile_Performing_IE_Bulletin_79-2D14_Requirements-2CSeismic_Analysis_of_Supports_1S-2D50052-2D1A-2C_1S-2D50062-2D1A_-26_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-016-03, /03L-0:on 800310,while Performing IE Bulletin 79-14 Requirements,Seismic Analysis of Supports 1S-50052-1A, 1S-50062-1A & 1S-23626-1 Indicated Seismic Stress Would Exceed Allowable Limit.Supports Modified

03L-0:on 800201,B&W Inservice Insp of Steam Generators Found Three Defective Tubes in First Sampling. Caused by Normal Wear of Generator Tubes.Addl Insp Found No Other Defective Tubes.Three Tubes Plugged
type: Subject
label: 05000312/LER-1980-011-03, /03L-0:on 800201,B&W Inservice Insp of Steam Generators Found Three Defective Tubes in First Sampling. Caused by Normal Wear of Generator Tubes.Addl Insp Found No Other Defective Tubes.Three Tubes Plugged
page: https://kanterella.com/05000312/LER-2D1980-2D011-2D03-2C_/03L-2D0-3Aon_800201-2CB-26W_Inservice_Insp_of_Steam_Generators_Found_Three_Defective_Tubes_in_First_Sampling._Caused_by_Normal_Wear_of_Generat…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-011-03, /03L-0:on 800201,B&W Inservice Insp of Steam Generators Found Three Defective Tubes in First Sampling. Caused by Normal Wear of Generator Tubes.Addl Insp Found No Other Defective Tubes.Three Tubes Plugged

03L-0:on 790205,redundant Unit A-500C Failed to Start,During Test of Reactor Bldg Emergency Cooler.Caused by Improperly Set Overcurrent Relay.Relay Reset, & Unit Retested & Declared Operable
type: Subject
label: 05000312/LER-1979-002-03, /03L-0:on 790205,redundant Unit A-500C Failed to Start,During Test of Reactor Bldg Emergency Cooler.Caused by Improperly Set Overcurrent Relay.Relay Reset, & Unit Retested & Declared Operable
page: https://kanterella.com/05000312/LER-2D1979-2D002-2D03-2C_/03L-2D0-3Aon_790205-2Credundant_Unit_A-2D500C_Failed_to_Start-2CDuring_Test_of_Reactor_Bldg_Emergency_Cooler.Caused_by_Improperly_Set_Overcurr…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-002-03, /03L-0:on 790205,redundant Unit A-500C Failed to Start,During Test of Reactor Bldg Emergency Cooler.Caused by Improperly Set Overcurrent Relay.Relay Reset, & Unit Retested & Declared Operable

03L-0:on 800125,refueling Cycle Hydraulic Snubber Testing Program Revealed Seven Failed Units.Caused by Broken Springs,Worn Poppets & Seats & Worn O Rings.Defective Parts Replaced & Retested
type: Subject
label: 05000312/LER-1980-007-03, /03L-0:on 800125,refueling Cycle Hydraulic Snubber Testing Program Revealed Seven Failed Units.Caused by Broken Springs,Worn Poppets & Seats & Worn O Rings.Defective Parts Replaced & Retested
page: https://kanterella.com/05000312/LER-2D1980-2D007-2D03-2C_/03L-2D0-3Aon_800125-2Crefueling_Cycle_Hydraulic_Snubber_Testing_Program_Revealed_Seven_Failed_Units.Caused_by_Broken_Springs-2CWorn_Poppets_-2…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-007-03, /03L-0:on 800125,refueling Cycle Hydraulic Snubber Testing Program Revealed Seven Failed Units.Caused by Broken Springs,Worn Poppets & Seats & Worn O Rings.Defective Parts Replaced & Retested

reactor in Cold Shutdown for Refueling Outage,Excessive Leakage Observed from Outboard Seal of Decay Heat Removal Pump A,P-261A.Seal Replaced,Sys Tested & Declared Operable
type: Subject
label: 05000312/LER-1980-005-03, /03L-0:on 800117,w/reactor in Cold Shutdown for Refueling Outage,Excessive Leakage Observed from Outboard Seal of Decay Heat Removal Pump A,P-261A.Seal Replaced,Sys Tested & Declared Operable
page: https://kanterella.com/05000312/LER-2D1980-2D005-2D03-2C_/03L-2D0-3Aon_800117-2Cw/reactor_in_Cold_Shutdown_for_Refueling_Outage-2CExcessive_Leakage_Observed_from_Outboard_Seal_of_Decay_Heat_Removal_Pu…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-005-03, /03L-0:on 800117,w/reactor in Cold Shutdown for Refueling Outage,Excessive Leakage Observed from Outboard Seal of Decay Heat Removal Pump A,P-261A.Seal Replaced,Sys Tested & Declared Operable

03L-0:on 800112,evaluation of Seven Consecutive RCS Leakrates Indicated Leak Rates in Excess of 1 Gallon Per Minute Resulting in Shutdown of Reactor.Probably Caused by Packing Leak in Pressurizer Spray Valve PV-21509
type: Subject
label: 05000312/LER-1980-004-03, /03L-0:on 800112,evaluation of Seven Consecutive RCS Leakrates Indicated Leak Rates in Excess of 1 Gallon Per Minute Resulting in Shutdown of Reactor.Probably Caused by Packing Leak in Pressurizer Spray Valve PV-21509
page: https://kanterella.com/05000312/LER-2D1980-2D004-2D03-2C_/03L-2D0-3Aon_800112-2Cevaluation_of_Seven_Consecutive_RCS_Leakrates_Indicated_Leak_Rates_in_Excess_of_1_Gallon_Per_Minute_Resulting_in_Shutdow…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-004-03, /03L-0:on 800112,evaluation of Seven Consecutive RCS Leakrates Indicated Leak Rates in Excess of 1 Gallon Per Minute Resulting in Shutdown of Reactor.Probably Caused by Packing Leak in Pressurizer Spray Valve PV-21509

01T-0:on 800204,lab Results of Failed Stainless Steel Stud from Anchor Valve Co Valve Indicated Potential Problem Re Premature Stud Failure.Caused by Improper Temp for Heat Treating During Mfg.More Testing in Progress
type: Subject
label: 05000312/LER-1980-006-01, /01T-0:on 800204,lab Results of Failed Stainless Steel Stud from Anchor Valve Co Valve Indicated Potential Problem Re Premature Stud Failure.Caused by Improper Temp for Heat Treating During Mfg.More Testing in Progress
page: https://kanterella.com/05000312/LER-2D1980-2D006-2D01-2C_/01T-2D0-3Aon_800204-2Clab_Results_of_Failed_Stainless_Steel_Stud_from_Anchor_Valve_Co_Valve_Indicated_Potential_Problem_Re_Premature_Stud_Fail…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-006-01, /01T-0:on 800204,lab Results of Failed Stainless Steel Stud from Anchor Valve Co Valve Indicated Potential Problem Re Premature Stud Failure.Caused by Improper Temp for Heat Treating During Mfg.More Testing in Progress

03L-0:on 800109,while Out of Svc for Fire Protection Mods,Hpi Pump B Was Restored to Standby.Makeup Pump Was Realigned to Normal.Caused by Operator Error. Standing Order Issued
type: Subject
label: 05000312/LER-1980-003-03, /03L-0:on 800109,while Out of Svc for Fire Protection Mods,Hpi Pump B Was Restored to Standby.Makeup Pump Was Realigned to Normal.Caused by Operator Error. Standing Order Issued
page: https://kanterella.com/05000312/LER-2D1980-2D003-2D03-2C_/03L-2D0-3Aon_800109-2Cwhile_Out_of_Svc_for_Fire_Protection_Mods-2CHpi_Pump_B_Was_Restored_to_Standby.Makeup_Pump_Was_Realigned_to_Normal.Cause…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-003-03, /03L-0:on 800109,while Out of Svc for Fire Protection Mods,Hpi Pump B Was Restored to Standby.Makeup Pump Was Realigned to Normal.Caused by Operator Error. Standing Order Issued

03L-0:on 800203,during Routine Tour of Reactor Bldg,U Bolt Bracket Found Missing on Pipe Support 1-G-26085-1.Probably Caused by Removal During Some Past Maint Evolution or During Const
type: Subject
label: 05000312/LER-1980-008-03, /03L-0:on 800203,during Routine Tour of Reactor Bldg,U Bolt Bracket Found Missing on Pipe Support 1-G-26085-1.Probably Caused by Removal During Some Past Maint Evolution or During Const
page: https://kanterella.com/05000312/LER-2D1980-2D008-2D03-2C_/03L-2D0-3Aon_800203-2Cduring_Routine_Tour_of_Reactor_Bldg-2CU_Bolt_Bracket_Found_Missing_on_Pipe_Support_1-2DG-2D26085-2D1.Probably_Caused_by_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-008-03, /03L-0:on 800203,during Routine Tour of Reactor Bldg,U Bolt Bracket Found Missing on Pipe Support 1-G-26085-1.Probably Caused by Removal During Some Past Maint Evolution or During Const

03L-0:on 791109,during Routine Operation,Diesel Generator a Failed to Start from Control Room.Cause Undetermined Because Major Factors Affecting Starting Capabilities Appeared Normal.No Recurrence of Problem
type: Subject
label: 05000312/LER-1979-017-03, /03L-0:on 791109,during Routine Operation,Diesel Generator a Failed to Start from Control Room.Cause Undetermined Because Major Factors Affecting Starting Capabilities Appeared Normal.No Recurrence of Problem
page: https://kanterella.com/05000312/LER-2D1979-2D017-2D03-2C_/03L-2D0-3Aon_791109-2Cduring_Routine_Operation-2CDiesel_Generator_a_Failed_to_Start_from_Control_Room.Cause_Undetermined_Because_Major_Factors…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-017-03, /03L-0:on 791109,during Routine Operation,Diesel Generator a Failed to Start from Control Room.Cause Undetermined Because Major Factors Affecting Starting Capabilities Appeared Normal.No Recurrence of Problem

ML19317G014
type: Subject
page: https://kanterella.com/ML19317G014
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G014

ML19296B050
type: Subject
page: https://kanterella.com/ML19296B050
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19296B050

ML19317G035
type: Subject
page: https://kanterella.com/ML19317G035
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G035

ML19317G017
type: Subject
page: https://kanterella.com/ML19317G017
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G017

ML19317G098
type: Subject
page: https://kanterella.com/ML19317G098
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G098

ML19317F947
type: Subject
page: https://kanterella.com/ML19317F947
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F947

ML19317F962
type: Subject
page: https://kanterella.com/ML19317F962
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F962

ML19282B387
type: Subject
page: https://kanterella.com/ML19282B387
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19282B387

03L-0:on 781215,during Refueling Shutdown, Blowdown Heat Transfer Pump Started & Sys Subjected to Sizable Water Hammer.Caused by Incomplete Valve Lineup. Hangers & Failed Snubber Repaired, & Personnel Notified
type: Subject
label: 05000312/LER-1978-017-03, /03L-0:on 781215,during Refueling Shutdown, Blowdown Heat Transfer Pump Started & Sys Subjected to Sizable Water Hammer.Caused by Incomplete Valve Lineup. Hangers & Failed Snubber Repaired, & Personnel Notified
page: https://kanterella.com/05000312/LER-2D1978-2D017-2D03-2C_/03L-2D0-3Aon_781215-2Cduring_Refueling_Shutdown-2C_Blowdown_Heat_Transfer_Pump_Started_-26_Sys_Subjected_to_Sizable_Water_Hammer.Caused_by_Inc…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-017-03, /03L-0:on 781215,during Refueling Shutdown, Blowdown Heat Transfer Pump Started & Sys Subjected to Sizable Water Hammer.Caused by Incomplete Valve Lineup. Hangers & Failed Snubber Repaired, & Personnel Notified

05000312/LER-1979-005-03, /03L-0 on 790509:two Inaccessible Safety Sys Hydraulic Snubbers Were Inoperable.Cause Unknown.One Snubber Rebuilt & Tested;Other Snubber Refilled
type: Subject
page: https://kanterella.com/05000312/LER-2D1979-2D005-2D03-2C_/03L-2D0_on_790509-3Atwo_Inaccessible_Safety_Sys_Hydraulic_Snubbers_Were_Inoperable.Cause_Unknown.One_Snubber_Rebuilt_-26_Tested-3BOther_Snubbe…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-005-03, /03L-0 on 790509:two Inaccessible Safety Sys Hydraulic Snubbers Were Inoperable.Cause Unknown.One Snubber Rebuilt & Tested;Other Snubber Refilled

03L-0:on 791117,during Periodic Visual Insp, Snubber 129 Found Inoperable Due to Lack of Oil.Caused by Loose lock-nut Which Allowed Unit to Rotate.Unit Will Be Modified During 1980 Refueling Outage to Secure Lock
type: Subject
label: 05000312/LER-1979-018-03, /03L-0:on 791117,during Periodic Visual Insp, Snubber 129 Found Inoperable Due to Lack of Oil.Caused by Loose lock-nut Which Allowed Unit to Rotate.Unit Will Be Modified During 1980 Refueling Outage to Secure Lock
page: https://kanterella.com/05000312/LER-2D1979-2D018-2D03-2C_/03L-2D0-3Aon_791117-2Cduring_Periodic_Visual_Insp-2C_Snubber_129_Found_Inoperable_Due_to_Lack_of_Oil.Caused_by_Loose_lock-2Dnut_Which_Allowed_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-018-03, /03L-0:on 791117,during Periodic Visual Insp, Snubber 129 Found Inoperable Due to Lack of Oil.Caused by Loose lock-nut Which Allowed Unit to Rotate.Unit Will Be Modified During 1980 Refueling Outage to Secure Lock

1.Caused by Inadequate Dilution When Sewage Sys Discharged to Effluent.Normal Dilution Instituted
type: Subject
label: 05000312/LER-1979-006-04, /04T-0:on 791214,plant Effluent Sample Indicated 0.6 mg/1 of Chlorine & Followup Sample at Site Boundary Indicated 0.5 mg/1.Caused by Inadequate Dilution When Sewage Sys Discharged to Effluent.Normal Dilution Instituted
page: https://kanterella.com/05000312/LER-2D1979-2D006-2D04-2C_/04T-2D0-3Aon_791214-2Cplant_Effluent_Sample_Indicated_0.6_mg/1_of_Chlorine_-26_Followup_Sample_at_Site_Boundary_Indicated_0.5_mg/1.Caused_by_I…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-006-04, /04T-0:on 791214,plant Effluent Sample Indicated 0.6 mg/1 of Chlorine & Followup Sample at Site Boundary Indicated 0.5 mg/1.Caused by Inadequate Dilution When Sewage Sys Discharged to Effluent.Normal Dilution Instituted

05000312/LER-1979-001-01, /01T-0:on 790129,RCS Cooldown Occurred at 120 F/H. Caused by Short Circuit Resulting in Reactor Trip.Procedure Mods Developed to Prevent Recurrence
type: Subject
page: https://kanterella.com/05000312/LER-2D1979-2D001-2D01-2C_/01T-2D0-3Aon_790129-2CRCS_Cooldown_Occurred_at_120_F/H._Caused_by_Short_Circuit_Resulting_in_Reactor_Trip.Procedure_Mods_Developed_to_Prevent_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-001-01, /01T-0:on 790129,RCS Cooldown Occurred at 120 F/H. Caused by Short Circuit Resulting in Reactor Trip.Procedure Mods Developed to Prevent Recurrence

05000312/LER-1979-003-04, /04T-0:on 791120,plant Effluent Sample Exceeded Tech Spec Limit of 0.2 Mg/L Chlorine.Caused by Excessive Flow in Plant Sewage Sys
type: Subject
page: https://kanterella.com/05000312/LER-2D1979-2D003-2D04-2C_/04T-2D0-3Aon_791120-2Cplant_Effluent_Sample_Exceeded_Tech_Spec_Limit_of_0.2_Mg/L_Chlorine.Caused_by_Excessive_Flow_in_Plant_Sewage_Sys
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-003-04, /04T-0:on 791120,plant Effluent Sample Exceeded Tech Spec Limit of 0.2 Mg/L Chlorine.Caused by Excessive Flow in Plant Sewage Sys

05000312/LER-1979-001-04, /04L-0 on 790529:plant Liquid Effluent Ph Exceeded 8.5 Limit.Probably Caused by Error Band Associated W/Ph Alarm Setpoint.Investigation Feasibility of Reducing Error Band
type: Subject
page: https://kanterella.com/05000312/LER-2D1979-2D001-2D04-2C_/04L-2D0_on_790529-3Aplant_Liquid_Effluent_Ph_Exceeded_8.5_Limit.Probably_Caused_by_Error_Band_Associated_W/Ph_Alarm_Setpoint.Investigation_Fea…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-001-04, /04L-0 on 790529:plant Liquid Effluent Ph Exceeded 8.5 Limit.Probably Caused by Error Band Associated W/Ph Alarm Setpoint.Investigation Feasibility of Reducing Error Band

ML19271E032
type: Subject
page: https://kanterella.com/ML19271E032
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19271E032

03L-0:on 791125,during Routine Plant Equipment Insp,Discovered Weld Leak on Seal Injection Line.Cause Not Stated.Defective Portion of Weld Ground Out & Weld Dye Penetrant Checked
type: Subject
label: 05000312/LER-1979-019-03, /03L-0:on 791125,during Routine Plant Equipment Insp,Discovered Weld Leak on Seal Injection Line.Cause Not Stated.Defective Portion of Weld Ground Out & Weld Dye Penetrant Checked
page: https://kanterella.com/05000312/LER-2D1979-2D019-2D03-2C_/03L-2D0-3Aon_791125-2Cduring_Routine_Plant_Equipment_Insp-2CDiscovered_Weld_Leak_on_Seal_Injection_Line.Cause_Not_Stated.Defective_Portion_of_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-019-03, /03L-0:on 791125,during Routine Plant Equipment Insp,Discovered Weld Leak on Seal Injection Line.Cause Not Stated.Defective Portion of Weld Ground Out & Weld Dye Penetrant Checked

Chlorine Under Review
type: Subject
label: 05000312/LER-1979-005-04, /04T-0:on 791205,plant Effluent Sample Indicated Excess Amount of Chlorine at Site Boundary.Caused by Misunderstanding Between Chemistry & Operations Personnel Re Chlorine Specs.Recurring Problems W/Chlorine Under Review
page: https://kanterella.com/05000312/LER-2D1979-2D005-2D04-2C_/04T-2D0-3Aon_791205-2Cplant_Effluent_Sample_Indicated_Excess_Amount_of_Chlorine_at_Site_Boundary.Caused_by_Misunderstanding_Between_Chemistry_…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-005-04, /04T-0:on 791205,plant Effluent Sample Indicated Excess Amount of Chlorine at Site Boundary.Caused by Misunderstanding Between Chemistry & Operations Personnel Re Chlorine Specs.Recurring Problems W/Chlorine Under Review

04T-0:on 791203,plant Effluent Samples Indicated Chlorine Levels Exceeded Tech Spec Limits.Caused by Partial Blockage of Sewage Sys Inlet Line.Dilution Flow Increased & Sewage Sys Hypochlorite Pump Stroke Reduced
type: Subject
label: 05000312/LER-1979-004-04, /04T-0:on 791203,plant Effluent Samples Indicated Chlorine Levels Exceeded Tech Spec Limits.Caused by Partial Blockage of Sewage Sys Inlet Line.Dilution Flow Increased & Sewage Sys Hypochlorite Pump Stroke Reduced
page: https://kanterella.com/05000312/LER-2D1979-2D004-2D04-2C_/04T-2D0-3Aon_791203-2Cplant_Effluent_Samples_Indicated_Chlorine_Levels_Exceeded_Tech_Spec_Limits.Caused_by_Partial_Blockage_of_Sewage_Sys_Inle…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-004-04, /04T-0:on 791203,plant Effluent Samples Indicated Chlorine Levels Exceeded Tech Spec Limits.Caused by Partial Blockage of Sewage Sys Inlet Line.Dilution Flow Increased & Sewage Sys Hypochlorite Pump Stroke Reduced

03L-0:on 791101,during Periodic Visual Insp of Accessible Safety Sys Hydraulic Snubbers,Snubbers 12 & 14 Determined Inoperable.Cause Unstated.Snubber 12 Rebuilt & Tested.Snubber 14 Refilled to Proper Level
type: Subject
label: 05000312/LER-1979-016-03, /03L-0:on 791101,during Periodic Visual Insp of Accessible Safety Sys Hydraulic Snubbers,Snubbers 12 & 14 Determined Inoperable.Cause Unstated.Snubber 12 Rebuilt & Tested.Snubber 14 Refilled to Proper Level
page: https://kanterella.com/05000312/LER-2D1979-2D016-2D03-2C_/03L-2D0-3Aon_791101-2Cduring_Periodic_Visual_Insp_of_Accessible_Safety_Sys_Hydraulic_Snubbers-2CSnubbers_12_-26_14_Determined_Inoperable.Cause…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-016-03, /03L-0:on 791101,during Periodic Visual Insp of Accessible Safety Sys Hydraulic Snubbers,Snubbers 12 & 14 Determined Inoperable.Cause Unstated.Snubber 12 Rebuilt & Tested.Snubber 14 Refilled to Proper Level

03L-0:on 800102,while Performing Requirements of IE Bulletin 79-02,found Support Did Not Meet Criteria 2, Making HPI B Sys Inoperable.Caused by Design Error.Pipe Support Modified
type: Subject
label: 05000312/LER-1980-001-03, /03L-0:on 800102,while Performing Requirements of IE Bulletin 79-02,found Support Did Not Meet Criteria 2, Making HPI B Sys Inoperable.Caused by Design Error.Pipe Support Modified
page: https://kanterella.com/05000312/LER-2D1980-2D001-2D03-2C_/03L-2D0-3Aon_800102-2Cwhile_Performing_Requirements_of_IE_Bulletin_79-2D02-2Cfound_Support_Did_Not_Meet_Criteria_2-2C_Making_HPI_B_Sys_Inopera…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-001-03, /03L-0:on 800102,while Performing Requirements of IE Bulletin 79-02,found Support Did Not Meet Criteria 2, Making HPI B Sys Inoperable.Caused by Design Error.Pipe Support Modified

03L-0:on 791227,during Verification of Test Data, Discovered Test SP205.02 Had Not Been Performed on Date Schedule Indicated.Caused by Error Made While Updating Surveillance Schedule.Rescheduled & Performed Tests
type: Subject
label: 05000312/LER-1979-025-03, /03L-0:on 791227,during Verification of Test Data, Discovered Test SP205.02 Had Not Been Performed on Date Schedule Indicated.Caused by Error Made While Updating Surveillance Schedule.Rescheduled & Performed Tests
page: https://kanterella.com/05000312/LER-2D1979-2D025-2D03-2C_/03L-2D0-3Aon_791227-2Cduring_Verification_of_Test_Data-2C_Discovered_Test_SP205.02_Had_Not_Been_Performed_on_Date_Schedule_Indicated.Caused_by…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-025-03, /03L-0:on 791227,during Verification of Test Data, Discovered Test SP205.02 Had Not Been Performed on Date Schedule Indicated.Caused by Error Made While Updating Surveillance Schedule.Rescheduled & Performed Tests

ML19317F902
type: Subject
page: https://kanterella.com/ML19317F902
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F902

01T-0:on 800104,while Performing Requirements of IE Bulletin 79-02,discovered That Pipe Support Did Not Meet Criteria 2.Caused by Differences in Design Criteria.Support Modified to Upgrade Safety Factor
type: Subject
label: 05000312/LER-1980-002-01, /01T-0:on 800104,while Performing Requirements of IE Bulletin 79-02,discovered That Pipe Support Did Not Meet Criteria 2.Caused by Differences in Design Criteria.Support Modified to Upgrade Safety Factor
page: https://kanterella.com/05000312/LER-2D1980-2D002-2D01-2C_/01T-2D0-3Aon_800104-2Cwhile_Performing_Requirements_of_IE_Bulletin_79-2D02-2Cdiscovered_That_Pipe_Support_Did_Not_Meet_Criteria_2.Caused_by_Di…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1980-002-01, /01T-0:on 800104,while Performing Requirements of IE Bulletin 79-02,discovered That Pipe Support Did Not Meet Criteria 2.Caused by Differences in Design Criteria.Support Modified to Upgrade Safety Factor

ML19317G064
type: Subject
page: https://kanterella.com/ML19317G064
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G064

03L-0:on 791216,axial Power Shaping Rods Withdrawn Seven Days Earlier than Allowed Due to Error in Effective Full Power Day Calculations.Probably Caused by Crud on Feedwater Tubes.Tubes Inspected
type: Subject
label: 05000312/LER-1979-021-03, /03L-0:on 791216,axial Power Shaping Rods Withdrawn Seven Days Earlier than Allowed Due to Error in Effective Full Power Day Calculations.Probably Caused by Crud on Feedwater Tubes.Tubes Inspected
page: https://kanterella.com/05000312/LER-2D1979-2D021-2D03-2C_/03L-2D0-3Aon_791216-2Caxial_Power_Shaping_Rods_Withdrawn_Seven_Days_Earlier_than_Allowed_Due_to_Error_in_Effective_Full_Power_Day_Calculations…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-021-03, /03L-0:on 791216,axial Power Shaping Rods Withdrawn Seven Days Earlier than Allowed Due to Error in Effective Full Power Day Calculations.Probably Caused by Crud on Feedwater Tubes.Tubes Inspected

03L-0:on 791207,during Routine Insp of Plant Equipment,Weld Leak on Seal Injection Line Discovered.Caused by Previous Repair Problem or vibration-induced Stress.New Pipe Nipple & Socket Weld Cap Installed
type: Subject
label: 05000312/LER-1979-020-03, /03L-0:on 791207,during Routine Insp of Plant Equipment,Weld Leak on Seal Injection Line Discovered.Caused by Previous Repair Problem or vibration-induced Stress.New Pipe Nipple & Socket Weld Cap Installed
page: https://kanterella.com/05000312/LER-2D1979-2D020-2D03-2C_/03L-2D0-3Aon_791207-2Cduring_Routine_Insp_of_Plant_Equipment-2CWeld_Leak_on_Seal_Injection_Line_Discovered.Caused_by_Previous_Repair_Problem_o…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-020-03, /03L-0:on 791207,during Routine Insp of Plant Equipment,Weld Leak on Seal Injection Line Discovered.Caused by Previous Repair Problem or vibration-induced Stress.New Pipe Nipple & Socket Weld Cap Installed

03L-0:on 791005,while Testing Anchor Bolts Per IE Bulletin 79-02,Region 5 Noted Excessive Failure Rates. Probably Caused by Const Installation.Discrepancies Being Corrected.Failure Criteria re-evaluated by Util
type: Subject
label: 05000312/LER-1979-012-03, /03L-0:on 791005,while Testing Anchor Bolts Per IE Bulletin 79-02,Region 5 Noted Excessive Failure Rates. Probably Caused by Const Installation.Discrepancies Being Corrected.Failure Criteria re-evaluated by Util
page: https://kanterella.com/05000312/LER-2D1979-2D012-2D03-2C_/03L-2D0-3Aon_791005-2Cwhile_Testing_Anchor_Bolts_Per_IE_Bulletin_79-2D02-2CRegion_5_Noted_Excessive_Failure_Rates._Probably_Caused_by_Const_In…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-012-03, /03L-0:on 791005,while Testing Anchor Bolts Per IE Bulletin 79-02,Region 5 Noted Excessive Failure Rates. Probably Caused by Const Installation.Discrepancies Being Corrected.Failure Criteria re-evaluated by Util

ML19290E961
type: Subject
page: https://kanterella.com/ML19290E961
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19290E961

03L-0:on 781221,while Increasing Power After Second Refueling Outage,Rcs Flow Indicator a Unusually Steady & Spurious Alarms Received.Caused by Operator Error. Transmitter Returned to Svc & Operator Instructed
type: Subject
label: 05000312/LER-1978-018-03, /03L-0:on 781221,while Increasing Power After Second Refueling Outage,Rcs Flow Indicator a Unusually Steady & Spurious Alarms Received.Caused by Operator Error. Transmitter Returned to Svc & Operator Instructed
page: https://kanterella.com/05000312/LER-2D1978-2D018-2D03-2C_/03L-2D0-3Aon_781221-2Cwhile_Increasing_Power_After_Second_Refueling_Outage-2CRcs_Flow_Indicator_a_Unusually_Steady_-26_Spurious_Alarms_Receive…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-018-03, /03L-0:on 781221,while Increasing Power After Second Refueling Outage,Rcs Flow Indicator a Unusually Steady & Spurious Alarms Received.Caused by Operator Error. Transmitter Returned to Svc & Operator Instructed

05000312/LER-1978-010-01, /01T-0 on 780914:During Normal Oper It Was Found That Fire Hydrant 3 Hose Cabinet Had Not Been Relocated W/Hydrant.Upon Discovery of Discrepancy Hose Cabinet Was Relocated
type: Subject
page: https://kanterella.com/05000312/LER-2D1978-2D010-2D01-2C_/01T-2D0_on_780914-3ADuring_Normal_Oper_It_Was_Found_That_Fire_Hydrant_3_Hose_Cabinet_Had_Not_Been_Relocated_W/Hydrant.Upon_Discovery_of_Discre…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1978-010-01, /01T-0 on 780914:During Normal Oper It Was Found That Fire Hydrant 3 Hose Cabinet Had Not Been Relocated W/Hydrant.Upon Discovery of Discrepancy Hose Cabinet Was Relocated

01T-0:on 790720,during Normal Operation,Analysis of Pipe Support Base Plate Design Using Concrete Expansion Anchor Bolts Indicated That Six safety-related Anchors at Facility Failed to Meet IE Bulletin 79-02,Criterion 2
type: Subject
label: 05000312/LER-1979-007-01, /01T-0:on 790720,during Normal Operation,Analysis of Pipe Support Base Plate Design Using Concrete Expansion Anchor Bolts Indicated That Six safety-related Anchors at Facility Failed to Meet IE Bulletin 79-02,Criterion 2
page: https://kanterella.com/05000312/LER-2D1979-2D007-2D01-2C_/01T-2D0-3Aon_790720-2Cduring_Normal_Operation-2CAnalysis_of_Pipe_Support_Base_Plate_Design_Using_Concrete_Expansion_Anchor_Bolts_Indicated_Tha…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-007-01, /01T-0:on 790720,during Normal Operation,Analysis of Pipe Support Base Plate Design Using Concrete Expansion Anchor Bolts Indicated That Six safety-related Anchors at Facility Failed to Meet IE Bulletin 79-02,Criterion 2

Loss of Reactor Coolant Pumps Later in Transient Could Cause 10CFR50,App K to Be Exce
type: Subject
label: 05000312/LER-1979-006-02, /02T-0:on 790720,B&W Informed District That Addl Small Break LOCA Analyses Indicated That Certain Spectrum of Small Leaks in RCS Coupled W/Loss of Reactor Coolant Pumps Later in Transient Could Cause 10CFR50,App K to Be Exce
page: https://kanterella.com/05000312/LER-2D1979-2D006-2D02-2C_/02T-2D0-3Aon_790720-2CB-26W_Informed_District_That_Addl_Small_Break_LOCA_Analyses_Indicated_That_Certain_Spectrum_of_Small_Leaks_in_RCS_Couple…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-006-02, /02T-0:on 790720,B&W Informed District That Addl Small Break LOCA Analyses Indicated That Certain Spectrum of Small Leaks in RCS Coupled W/Loss of Reactor Coolant Pumps Later in Transient Could Cause 10CFR50,App K to Be Exce

ML19225A167
type: Subject
page: https://kanterella.com/ML19225A167
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19225A167

E Informed Util That as-built Configuration of Line 47360-10 Inch,When Seismically Reanalyzed,May Result in Pipe Support Overstress.Caused by Nonconformance of Const Drawings.New Support Installed
type: Subject
label: 05000312/LER-1979-015-03, /03L-0:on 791031,A/E Informed Util That as-built Configuration of Line 47360-10 Inch,When Seismically Reanalyzed,May Result in Pipe Support Overstress.Caused by Nonconformance of Const Drawings.New Support Installed
page: https://kanterella.com/05000312/LER-2D1979-2D015-2D03-2C_/03L-2D0-3Aon_791031-2CA/E_Informed_Util_That_as-2Dbuilt_Configuration_of_Line_47360-2D10_Inch-2CWhen_Seismically_Reanalyzed-2CMay_Result_in_Pi…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-015-03, /03L-0:on 791031,A/E Informed Util That as-built Configuration of Line 47360-10 Inch,When Seismically Reanalyzed,May Result in Pipe Support Overstress.Caused by Nonconformance of Const Drawings.New Support Installed

05000312/LER-1979-002-04, /04T-0:on 791024,plant Effluent Sample Indicated Excessive Chlorine.Caused by Failure to Take Comparison Site Boundary Sample.Sampling Personnel Reinstructed
type: Subject
page: https://kanterella.com/05000312/LER-2D1979-2D002-2D04-2C_/04T-2D0-3Aon_791024-2Cplant_Effluent_Sample_Indicated_Excessive_Chlorine.Caused_by_Failure_to_Take_Comparison_Site_Boundary_Sample.Sampling_Pe…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-002-04, /04T-0:on 791024,plant Effluent Sample Indicated Excessive Chlorine.Caused by Failure to Take Comparison Site Boundary Sample.Sampling Personnel Reinstructed

05000312/LER-1979-013-01, /01T-0:on 791101,while Analyzing Onsite Power Distribution Sys,Identified Possible Discrepancy in Event of Degraded Voltage Condition on Grid.Caused Unstated.Relay Reset
type: Subject
page: https://kanterella.com/05000312/LER-2D1979-2D013-2D01-2C_/01T-2D0-3Aon_791101-2Cwhile_Analyzing_Onsite_Power_Distribution_Sys-2CIdentified_Possible_Discrepancy_in_Event_of_Degraded_Voltage_Condition_o…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-013-01, /01T-0:on 791101,while Analyzing Onsite Power Distribution Sys,Identified Possible Discrepancy in Event of Degraded Voltage Condition on Grid.Caused Unstated.Relay Reset

Seismic Analyses
type: Subject
label: 05000312/LER-1979-014-03, /03L-0:on 791008,as-built Configuration of Line 48222-18,when Seismically Reanalyzed,Resulted in Probable Support Pipe Overstresses.Caused by Design Documentation & Const Drawings Not Conforming W/Seismic Analyses
page: https://kanterella.com/05000312/LER-2D1979-2D014-2D03-2C_/03L-2D0-3Aon_791008-2Cas-2Dbuilt_Configuration_of_Line_48222-2D18-2Cwhen_Seismically_Reanalyzed-2CResulted_in_Probable_Support_Pipe_Overstress…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-014-03, /03L-0:on 791008,as-built Configuration of Line 48222-18,when Seismically Reanalyzed,Resulted in Probable Support Pipe Overstresses.Caused by Design Documentation & Const Drawings Not Conforming W/Seismic Analyses

03L-0:on 790829,bulbs for Pump P-4828 Were Not Lit.Dc Control Power Breaker Was in Off Position.Caused by Breaker Inadvertently Shut Off While Performing Maint on Another Breaker in Same Cubicle.Power Restored
type: Subject
label: 05000312/LER-1979-010-03, /03L-0:on 790829,bulbs for Pump P-4828 Were Not Lit.Dc Control Power Breaker Was in Off Position.Caused by Breaker Inadvertently Shut Off While Performing Maint on Another Breaker in Same Cubicle.Power Restored
page: https://kanterella.com/05000312/LER-2D1979-2D010-2D03-2C_/03L-2D0-3Aon_790829-2Cbulbs_for_Pump_P-2D4828_Were_Not_Lit.Dc_Control_Power_Breaker_Was_in_Off_Position.Caused_by_Breaker_Inadvertently_Shut_O…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-010-03, /03L-0:on 790829,bulbs for Pump P-4828 Were Not Lit.Dc Control Power Breaker Was in Off Position.Caused by Breaker Inadvertently Shut Off While Performing Maint on Another Breaker in Same Cubicle.Power Restored

03L-0:on 790830,breaker 523A14 Was Inoperative Due to Connect Switch in Off Position,Causing Springs to Be Uncharged.Caused by Inadvertent Repositioning of Switch.Log Sheets Initiated for Verification
type: Subject
label: 05000312/LER-1979-011-03, /03L-0:on 790830,breaker 523A14 Was Inoperative Due to Connect Switch in Off Position,Causing Springs to Be Uncharged.Caused by Inadvertent Repositioning of Switch.Log Sheets Initiated for Verification
page: https://kanterella.com/05000312/LER-2D1979-2D011-2D03-2C_/03L-2D0-3Aon_790830-2Cbreaker_523A14_Was_Inoperative_Due_to_Connect_Switch_in_Off_Position-2CCausing_Springs_to_Be_Uncharged.Caused_by_Inadver…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-011-03, /03L-0:on 790830,breaker 523A14 Was Inoperative Due to Connect Switch in Off Position,Causing Springs to Be Uncharged.Caused by Inadvertent Repositioning of Switch.Log Sheets Initiated for Verification

03L-0:on 790814,contrary to Tech Specs,Borated Water Storage Tank Had Less than Specified Boron Concentration.Reactor Shutdown Initiated & Boric Acid Added to Tank,Bringing Concentration Above Limit
type: Subject
label: 05000312/LER-1979-009-03, /03L-0:on 790814,contrary to Tech Specs,Borated Water Storage Tank Had Less than Specified Boron Concentration.Reactor Shutdown Initiated & Boric Acid Added to Tank,Bringing Concentration Above Limit
page: https://kanterella.com/05000312/LER-2D1979-2D009-2D03-2C_/03L-2D0-3Aon_790814-2Ccontrary_to_Tech_Specs-2CBorated_Water_Storage_Tank_Had_Less_than_Specified_Boron_Concentration.Reactor_Shutdown_Initiat…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1979-009-03, /03L-0:on 790814,contrary to Tech Specs,Borated Water Storage Tank Had Less than Specified Boron Concentration.Reactor Shutdown Initiated & Boric Acid Added to Tank,Bringing Concentration Above Limit

04T-0:on 821006,review of Plant Effluent Records Disclosed Ph Reading of 6.2 for Less than 15 Minutes on 820918.Caused by Leaks at Two Elbows in Acid Line Running from Storage Tank to Turbine Bldg.Leaks Repaired
type: Subject
label: 05000312/LER-1982-026-04, /04T-0:on 821006,review of Plant Effluent Records Disclosed Ph Reading of 6.2 for Less than 15 Minutes on 820918.Caused by Leaks at Two Elbows in Acid Line Running from Storage Tank to Turbine Bldg.Leaks Repaired
page: https://kanterella.com/05000312/LER-2D1982-2D026-2D04-2C_/04T-2D0-3Aon_821006-2Creview_of_Plant_Effluent_Records_Disclosed_Ph_Reading_of_6.2_for_Less_than_15_Minutes_on_820918.Caused_by_Leaks_at_Two_E…
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: 05000312/LER-1982-026-04, /04T-0:on 821006,review of Plant Effluent Records Disclosed Ph Reading of 6.2 for Less than 15 Minutes on 820918.Caused by Leaks at Two Elbows in Acid Line Running from Storage Tank to Turbine Bldg.Leaks Repaired

ML19210D035
type: Subject
page: https://kanterella.com/ML19210D035
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19210D035

ML19261D447
type: Subject
page: https://kanterella.com/ML19261D447
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19261D447

ML19317F973
type: Subject
page: https://kanterella.com/ML19317F973
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F973

ML19211A261
type: Subject
page: https://kanterella.com/ML19211A261
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19211A261

ML19317F993
type: Subject
page: https://kanterella.com/ML19317F993
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F993

ML19317G020
type: Subject
page: https://kanterella.com/ML19317G020
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G020

ML19317F992
type: Subject
page: https://kanterella.com/ML19317F992
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F992

ML19242D082
type: Subject
page: https://kanterella.com/ML19242D082
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19242D082

ML19317F971
type: Subject
page: https://kanterella.com/ML19317F971
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F971

ML19305D949
type: Subject
page: https://kanterella.com/ML19305D949
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19305D949

ML19317F970
type: Subject
page: https://kanterella.com/ML19317F970
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F970

ML19289C663
type: Subject
page: https://kanterella.com/ML19289C663
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19289C663

ML19317F924
type: Subject
page: https://kanterella.com/ML19317F924
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F924

ML19263C229
type: Subject
page: https://kanterella.com/ML19263C229
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19263C229

ML19317G028
type: Subject
page: https://kanterella.com/ML19317G028
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G028

ML19319A590
type: Subject
page: https://kanterella.com/ML19319A590
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19319A590

ML19317G023
type: Subject
page: https://kanterella.com/ML19317G023
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317G023

ML19317F873
type: Subject
page: https://kanterella.com/ML19317F873
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F873

ML19208B003
type: Subject
page: https://kanterella.com/ML19208B003
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19208B003

ML19317F899
type: Subject
page: https://kanterella.com/ML19317F899
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F899

ML19317F901
type: Subject
page: https://kanterella.com/ML19317F901
wiki namespace: 0
wiki page content language: en
from: Colombo R
wiki page sort key: ML19317F901

ML20055D879
type: Subject
page: https://kanterella.com/ML20055D879
wiki namespace: 0
wiki page content language: en
to: Colombo R
wiki page sort key: ML20055D879

ML20055D834
type: Subject
page: https://kanterella.com/ML20055D834
wiki namespace: 0
wiki page content language: en
to: Colombo R
wiki page sort key: ML20055D834

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

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