05000282/LER-1997-005-01, :on 970408,surveillance Interval Discrepancies W/Diesel Fuel Oil Sample Analyses Was Identified Due to Lack of Technical Staff Understanding.Diesel Fuel Surveillance Will Be Changed to Require Completion of Required Analyses

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:on 970408,surveillance Interval Discrepancies W/Diesel Fuel Oil Sample Analyses Was Identified Due to Lack of Technical Staff Understanding.Diesel Fuel Surveillance Will Be Changed to Require Completion of Required Analyses
Person / Time
ML20141A174
Site:	Prairie Island
Issue date:	05/08/1997
From:	Leveille J NORTHERN STATES POWER CO.
To:
Shared Package
ML20141A155	List: 05000282/LER-1997-005, Forwards LER 97-005-00 Which Contained One New Commitment in Italicized Statement in Corrective Action Section 05000282/LER-1997-005-01, :on 970408,surveillance Interval Discrepancies W/Diesel Fuel Oil Sample Analyses Was Identified Due to Lack of Technical Staff Understanding.Diesel Fuel Surveillance Will Be Changed to Require Completion of Required Analyses
References
LER-97-005-01, LER-97-5-1, NUDOCS 9705140174
Download: ML20141A174 (3)
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LER-1997-005, on 970408,surveillance Interval Discrepancies W/Diesel Fuel Oil Sample Analyses Was Identified Due to Lack of Technical Staff Understanding.Diesel Fuel Surveillance Will Be Changed to Require Completion of Required Analyses

Event date:
Report date:
2821997005R01 - NRC Website
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text

Licensee Event Report

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		Reporting criterion
05000282/LER-1997-001, :on 970108,auxiliary Building Crane Protective Features Defeated by Wiring Errors.Caused by Wiring Change for New Transmitter critical/non-critical Key Switch. Controllers Being Made to Agree W/One Another	on 970108,auxiliary Building Crane Protective Features Defeated by Wiring Errors.Caused by Wiring Change for New Transmitter critical/non-critical Key Switch. Controllers Being Made to Agree W/One Another	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
05000306/LER-1997-001, Forwards LER 97-001-00 Re Transport of Heavy Load Over Irradiated Fuel or Safe SD Equipment W/O Establishing Required Conditions.Event Reported Via Emergency Emergency Notification Sys IAW 10CFR50.72 on 970207	Forwards LER 97-001-00 Re Transport of Heavy Load Over Irradiated Fuel or Safe SD Equipment W/O Establishing Required Conditions.Event Reported Via Emergency Emergency Notification Sys IAW 10CFR50.72 on 970207
05000306/LER-1997-001-01, :on 970207,heavy Load Transported Over Irradiated Fuel or Safe SD Equipment W/O Establishing Required Conditions.Caused by Failure to Follow D58.Movement of 22 RCP Placed on Hold Until Procedures Revised	on 970207,heavy Load Transported Over Irradiated Fuel or Safe SD Equipment W/O Establishing Required Conditions.Caused by Failure to Follow D58.Movement of 22 RCP Placed on Hold Until Procedures Revised	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)
05000282/LER-1997-002-01, :on 970219,failed to Submit Relief Requests for Limited ISI Exams.Caused by Misinterpretation of 10CFR50.55a(g)(1).Prepared Procedure Restablishing Process to Identify,Quantify & Document ISI Exams	on 970219,failed to Submit Relief Requests for Limited ISI Exams.Caused by Misinterpretation of 10CFR50.55a(g)(1).Prepared Procedure Restablishing Process to Identify,Quantify & Document ISI Exams	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)
05000306/LER-1997-002-02, :on 970318,discharge Valves to RCS Cold Legs Were Closed When RCS Was Above Shutdown Because of Administrative Error.Training Was Provided on Intent of Motherhood Clause to Operations Staff	on 970318,discharge Valves to RCS Cold Legs Were Closed When RCS Was Above Shutdown Because of Administrative Error.Training Was Provided on Intent of Motherhood Clause to Operations Staff	10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)
05000282/LER-1997-003-02, :on 970325,discovered That Afp Will Trip on Low SG Pressure During Complete Loss of Feedwater ATWS Event. Operability Evaluation of Plant Was Performed	on 970325,discovered That Afp Will Trip on Low SG Pressure During Complete Loss of Feedwater ATWS Event. Operability Evaluation of Plant Was Performed	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)
05000306/LER-1997-003-01, :on 970517,Unit 2 Was Brought to Planned Hot Shutdown Condition to Perform Valve Maint in 22 RCP Containment Vault.Caused by Inattention to Detail.Will Evaluate Revising Plant Operating Procedures	on 970517,Unit 2 Was Brought to Planned Hot Shutdown Condition to Perform Valve Maint in 22 RCP Containment Vault.Caused by Inattention to Detail.Will Evaluate Revising Plant Operating Procedures	10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000306/LER-1997-004-02, :on 970926,determined That Maint Airlock Volumetric Test Exceeded TS 4.4 Required Limit.Caused by Misalignment of Operating Mechanism Shafts W/Shaft Seal Housings.Reduced Shaft Seal Leakages & Revised Procedure	on 970926,determined That Maint Airlock Volumetric Test Exceeded TS 4.4 Required Limit.Caused by Misalignment of Operating Mechanism Shafts W/Shaft Seal Housings.Reduced Shaft Seal Leakages & Revised Procedure	10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown
05000282/LER-1997-004-01, :on 970404,AMSAC Actuation Blocking Setpoint Was Inadvertently Set non-conservatively High.Caused by Listed Incorrect Assumption.Amsac Setpoints Were Revised Using Actual Plant Data for Impulse Pressure	on 970404,AMSAC Actuation Blocking Setpoint Was Inadvertently Set non-conservatively High.Caused by Listed Incorrect Assumption.Amsac Setpoints Were Revised Using Actual Plant Data for Impulse Pressure	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)
05000306/LER-1997-004, Forwards LER 97-004-00 Re Plant Shutdown Due to Greater than Allowable Leakage from Maint Airlock Per Ts.Commitment Made by Util Listed	Forwards LER 97-004-00 Re Plant Shutdown Due to Greater than Allowable Leakage from Maint Airlock Per Ts.Commitment Made by Util Listed
05000306/LER-1997-005-02, :on 971117,sudden Pressure Lockout of Number 10 Transformer Resulted in Auto Load Rejection/Restoration on SR Bus.Caused by Transformer Being Taken Oos.Replaced 10 Transformer Sudden Transformer Relay 63T10	on 971117,sudden Pressure Lockout of Number 10 Transformer Resulted in Auto Load Rejection/Restoration on SR Bus.Caused by Transformer Being Taken Oos.Replaced 10 Transformer Sudden Transformer Relay 63T10	10 CFR 50.73(a)(2)(iv), System Actuation
05000282/LER-1997-005, Forwards LER 97-005-00 Which Contained One New Commitment in Italicized Statement in Corrective Action Section	Forwards LER 97-005-00 Which Contained One New Commitment in Italicized Statement in Corrective Action Section
05000282/LER-1997-005-01, :on 970408,surveillance Interval Discrepancies W/Diesel Fuel Oil Sample Analyses Was Identified Due to Lack of Technical Staff Understanding.Diesel Fuel Surveillance Will Be Changed to Require Completion of Required Analyses	on 970408,surveillance Interval Discrepancies W/Diesel Fuel Oil Sample Analyses Was Identified Due to Lack of Technical Staff Understanding.Diesel Fuel Surveillance Will Be Changed to Require Completion of Required Analyses
05000306/LER-1997-005, Forwards LER 97-005-00 Re Sudden Pressure Lockout of Number 10 Transformer Which Resulted in Auto Load Rejection/ Restoration on SR Bus on 971117	Forwards LER 97-005-00 Re Sudden Pressure Lockout of Number 10 Transformer Which Resulted in Auto Load Rejection/ Restoration on SR Bus on 971117
05000282/LER-1997-006-01, :on 970411,discovered Log Error in CR Ventilation Sys.Caused by Apparent Oversight During Original Plant Design.Developed Design Change to Modify Logic	on 970411,discovered Log Error in CR Ventilation Sys.Caused by Apparent Oversight During Original Plant Design.Developed Design Change to Modify Logic	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)
05000282/LER-1997-007, :on 970429,both Trains of Spent Fuel Pool Special Ventilation Were Inoperable While Handling Load Over Spent Fuel.Caused by Misinterpretation of TS 3.8.D.3.Deleted TS Interpretation 3.8-3 & Revised Procedures	on 970429,both Trains of Spent Fuel Pool Special Ventilation Were Inoperable While Handling Load Over Spent Fuel.Caused by Misinterpretation of TS 3.8.D.3.Deleted TS Interpretation 3.8-3 & Revised Procedures	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000282/LER-1997-007-01, :on 970429,declared Both Trains of Spent Fuel Pool Special Ventilation Inoperable Due to Handling Load Over Spent Fuel.Deleted TS Interpretation 3.8-3 & Returned Ventilation Sys to Service When Door Was Shut	on 970429,declared Both Trains of Spent Fuel Pool Special Ventilation Inoperable Due to Handling Load Over Spent Fuel.Deleted TS Interpretation 3.8-3 & Returned Ventilation Sys to Service When Door Was Shut	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)
05000282/LER-1997-008-01, :on 970602,Unit 1 Reactor Trip Occurred.Caused by Electrical Ground in Rod Control Sys.Troubleshooting Activities Were Conducted	on 970602,Unit 1 Reactor Trip Occurred.Caused by Electrical Ground in Rod Control Sys.Troubleshooting Activities Were Conducted	10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2)
05000282/LER-1997-010, :on 970616,failure to Evaluate Condition of Rhrp When Vibration Level During Surveillance Test Was Recorded at Alert Value Was Noted.Caused by Personnel Error. Improved Engineers Knowledge of Requirements	on 970616,failure to Evaluate Condition of Rhrp When Vibration Level During Surveillance Test Was Recorded at Alert Value Was Noted.Caused by Personnel Error. Improved Engineers Knowledge of Requirements	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)
05000282/LER-1997-011-01, :on 971003,failure to Test Low Pressure auto- Start Function of 121 motor-driven Cooling Water Pump.Caused by Oversight During Surveillance Development.Low Header Pressure auto-start of 121 Mdclp Tested Per TS A.4.5.A 5.a	on 971003,failure to Test Low Pressure auto- Start Function of 121 motor-driven Cooling Water Pump.Caused by Oversight During Surveillance Development.Low Header Pressure auto-start of 121 Mdclp Tested Per TS A.4.5.A 5.a	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
05000282/LER-1997-011, Forwards LER 97-011-00 Re Failure to Test Low Pressure auto- Start Function of 121 Motor Driven Cooling Water Pump & Inadequate Separation Between Trains a & B Low Pressure auto-start Switches.Two New Commitments Made	Forwards LER 97-011-00 Re Failure to Test Low Pressure auto- Start Function of 121 Motor Driven Cooling Water Pump & Inadequate Separation Between Trains a & B Low Pressure auto-start Switches.Two New Commitments Made
05000282/LER-1997-012-01, :on 971009,chemical & Volume Control Sys Malfunction,Occurred.Caused by Failure to Recognize Shutdown Margin Requirements in Usar.Procedures Modified to Maintain Increased Shutdown Margin	on 971009,chemical & Volume Control Sys Malfunction,Occurred.Caused by Failure to Recognize Shutdown Margin Requirements in Usar.Procedures Modified to Maintain Increased Shutdown Margin
05000282/LER-1997-013, :on 971018,inoperability of AFW & Entry Into TS 3.0.C Was Noted Due to AFW Manual Start During Planned & Orderly Shutdown.Lar Will Be Prepared	on 971018,inoperability of AFW & Entry Into TS 3.0.C Was Noted Due to AFW Manual Start During Planned & Orderly Shutdown.Lar Will Be Prepared
05000282/LER-1997-014, :on 971028,maint Shop Fire in Service Building Occurred.Caused by Spark or Hot Molten Particle Drawn Into Air Filtration Device Which Ignited 1 of 2 Paper Filters. Evacuated Turbine Bldg	on 971028,maint Shop Fire in Service Building Occurred.Caused by Spark or Hot Molten Particle Drawn Into Air Filtration Device Which Ignited 1 of 2 Paper Filters. Evacuated Turbine Bldg
05000282/LER-1997-015, :on 971103,both Trains of CR Special Ventilation Sys Were Inoperable.Caused by Opened Outside Air Supply Dampers to CR Ventilation Sys.Caution Tag Will Be Applied to Maint Control Board	on 971103,both Trains of CR Special Ventilation Sys Were Inoperable.Caused by Opened Outside Air Supply Dampers to CR Ventilation Sys.Caution Tag Will Be Applied to Maint Control Board
05000282/LER-1997-016, :on 971119,condition That Did Not Fully Comply W/Prescriptive Requirements of 10CFR50,App R Section Iii.O, Was Noted.Caused by Inadequate Review.Revised Alarm Response Procedures C47012 & C47512 to Inspect Area Around RCP	on 971119,condition That Did Not Fully Comply W/Prescriptive Requirements of 10CFR50,App R Section Iii.O, Was Noted.Caused by Inadequate Review.Revised Alarm Response Procedures C47012 & C47512 to Inspect Area Around RCP	10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)
05000282/LER-1997-017, :on 971206,concluded That Condition of Cabling to 1LT-433 & 1LT-426 Did Not Satisfy Separation Criteria of 10CFR50,App R,Section III.G.2.Caused by Incorrect Design Documentation.Noncombustible Radiant Energy Installed	on 971206,concluded That Condition of Cabling to 1LT-433 & 1LT-426 Did Not Satisfy Separation Criteria of 10CFR50,App R,Section III.G.2.Caused by Incorrect Design Documentation.Noncombustible Radiant Energy Installed
05000282/LER-1997-018, :on 971207,failure to Test auto-start Feature of CR Ventilation Sys Air Handlers Determined.Caused by Procedure Deficiency.Procedure Will Be Revised Prior to Next Scheduled Performance to Test auto-start	on 971207,failure to Test auto-start Feature of CR Ventilation Sys Air Handlers Determined.Caused by Procedure Deficiency.Procedure Will Be Revised Prior to Next Scheduled Performance to Test auto-start	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications

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