05000461/LER-1997-006-01, Forwards LER 97-006-01 Re Lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Safe Shutdown Circuit Breakers,Causes Plant to Be Outside Design Basis

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Forwards LER 97-006-01 Re Lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Safe Shutdown Circuit Breakers,Causes Plant to Be Outside Design Basis
Person / Time
ML20141J511
Site:	Clinton
Issue date:	08/06/1997
From:	Romberg W ILLINOIS POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20141J514	List: 05000461/LER-1997-006-01, Forwards LER 97-006-01 Re Lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Safe Shutdown Circuit Breakers,Causes Plant to Be Outside Design Basis
References
U-602788, NUDOCS 9708200083
Download: ML20141J511 (1)
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LER-1997-006, Forwards LER 97-006-01 Re Lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Safe Shutdown Circuit Breakers,Causes Plant to Be Outside Design Basis

Event date:
Report date:
4611997006R01 - NRC Website
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text

_ _ _ ____________ _ _

't Ilhnois Power Company Chnton Power Station.

P O Bos 678 3

Chnton,IL 61727 Tel 217 9354 220 1LL1N9tS P&WER.

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U-602788 2C.220 August 6, 1997 Docket No. 50-461 10CFR50.73 Document Control Desk l

Nuclear Regulatory Commission Washington, D.C. 20555

- Subject:

Clinton Power Station - Unit 1 Licensee Event Report No. 97-006-01

Dear Madam or Sir:

Enclosed is Licensee Event Report (LER) No. 97-006-01: Lack of Coordination of 120 Volt Non-Safe Shutdown Circuit Breakers in Distribution Panels pth Safe Shutdown Circuit Breakers Causes Plant to be Outside Its Desian Basis. The enclosed report has been revised to include the cause of the event, corrective action, 4

analysis of event, and a discussion of previous similar events. This report is being submitted in accordance with the requirements of 10CFR50.73.

j Sincerely yours, h)p.,s r' N Wayne D. Romberg Assistant Vice President l

MRS/krk g

Enclosure cc:

NRC Clinton Licensing Project Manager NRC Resider.t Office, V-690 Regional Administrator, Region III, USNRC Illinois Department ofNuclear Safety INPO Records Center kkkIk!k!kk!

9708200003 970006 PDR ADOCK 05000461 g

Licensee Event Report

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		Reporting criterion
05000461/LER-1997-001, :on 970103,nuclear Fuel Supplier Failed to Analyze Turbine Pressure Regulator Downscale Failure Event in off-rated Condition Per 10CFR21.21.Caused by Error in Nuclear Fuel Supplier.Mcpr Will Be Implemented	on 970103,nuclear Fuel Supplier Failed to Analyze Turbine Pressure Regulator Downscale Failure Event in off-rated Condition Per 10CFR21.21.Caused by Error in Nuclear Fuel Supplier.Mcpr Will Be Implemented	10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2) 10 CFR 21.21(c)(4) 10 CFR 21.21(c)(3)
05000461/LER-1997-002-01, Forwards LER 97-002-01 Re Failure to Complete TS 3.8.2 LCO Required Action B.4 Due to Personnel Error.Commitment Made within Ltr,Listed	Forwards LER 97-002-01 Re Failure to Complete TS 3.8.2 LCO Required Action B.4 Due to Personnel Error.Commitment Made within Ltr,Listed
05000461/LER-1997-003, :on 970128,failed to Recongnize Impact of Disconnecting Div 1 IRM Cable While Div 2 IRM Cable Was Disconnected Resulted in 2 Out of 4 RPS Actuation Being Satisfied.Caused by Personnel Error.Counseled Personnel	on 970128,failed to Recongnize Impact of Disconnecting Div 1 IRM Cable While Div 2 IRM Cable Was Disconnected Resulted in 2 Out of 4 RPS Actuation Being Satisfied.Caused by Personnel Error.Counseled Personnel	10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(viii)
05000461/LER-1997-004, :on 970204,failed to Properly Implement TS SR 3.6.5.3.3 Due to Inadequate Procedure.Revised Surveillance Procedure to Verify Valves Closed	on 970204,failed to Properly Implement TS SR 3.6.5.3.3 Due to Inadequate Procedure.Revised Surveillance Procedure to Verify Valves Closed	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) 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) 10 CFR 50.73(a)(2)(1) 10 CFR 50.73(s)(2)(vii)
05000461/LER-1997-005-01, Forwards LER 97-005-01 Re Eighteen Containment Penetrations Susceptible to Thermally Induced over-pressurization Due to Unknown Cause.Util Will Modify Seven Containment Penetrations to Eliminate over-pressure Concern	Forwards LER 97-005-01 Re Eighteen Containment Penetrations Susceptible to Thermally Induced over-pressurization Due to Unknown Cause.Util Will Modify Seven Containment Penetrations to Eliminate over-pressure Concern
05000461/LER-1997-006-01, Forwards LER 97-006-01 Re Lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Safe Shutdown Circuit Breakers,Causes Plant to Be Outside Design Basis	Forwards LER 97-006-01 Re Lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Safe Shutdown Circuit Breakers,Causes Plant to Be Outside Design Basis
05000461/LER-1997-006, :on 970219,lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Shutdown Circuit Breakers Causes Plant to Be Outside Its Basis.Corrected Circuit Breaker Problems	on 970219,lack of Coordination of 120 Volt non-safe Shutdown Circuit Breakers in Distribution Panels W/Shutdown Circuit Breakers Causes Plant to Be Outside Its Basis.Corrected Circuit Breaker Problems	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 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)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)
05000461/LER-1997-007, :on 970227,lack of Procedural Guidelines for Maintaining Seismic Qualification Resulted in Division 3 Switchgear Outside Design Basis.Revised CPS Procedures.W/	on 970227,lack of Procedural Guidelines for Maintaining Seismic Qualification Resulted in Division 3 Switchgear Outside Design Basis.Revised CPS Procedures.W/	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(e)(2)(iv)
05000461/LER-1997-008, :on 920408,determined That DG Undervoltage Relays Inoperable Due to Inadequate Process to Review Operability Requirements of Plant Equipment as Defined in Ts.Amend Requested to Change TS	on 920408,determined That DG Undervoltage Relays Inoperable Due to Inadequate Process to Review Operability Requirements of Plant Equipment as Defined in Ts.Amend Requested to Change TS	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(c)(2)(v)
05000461/LER-1997-009-01, Forwards LER 97-009-01 Re Identification of Surveillance Procedure Which Does Not Adequately Consider Accuracy of Installed Instrumentation in Meeting TS Requirements for Reactor Core Isolation Cooling Pump.Commitments,Liste	Forwards LER 97-009-01 Re Identification of Surveillance Procedure Which Does Not Adequately Consider Accuracy of Installed Instrumentation in Meeting TS Requirements for Reactor Core Isolation Cooling Pump.Commitments,Listed
05000461/LER-1997-011, :on 860929,failed to Verify Breaker Closed at seven-day Frequency Required by TS Due to Omission of Breaker from Surveillance Procedure.Caused by Inadequate Procedures.Revised Procedures	on 860929,failed to Verify Breaker Closed at seven-day Frequency Required by TS Due to Omission of Breaker from Surveillance Procedure.Caused by Inadequate Procedures.Revised Procedures	10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(1)
05000461/LER-1997-013, :on 970508,failure to Adequately Verify That No Trips Existed During Surveillance Test Resulted in Inadvertent Actuation of Sgts.Caused by Personnel Error. Procedure CPS 9532.61 Was Revised	on 970508,failure to Adequately Verify That No Trips Existed During Surveillance Test Resulted in Inadvertent Actuation of Sgts.Caused by Personnel Error. Procedure CPS 9532.61 Was Revised	10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(x)
05000461/LER-1997-014, :on 880426,MSIV Closure Time Testing Was Not Adequate,Due to Procedural Inadequacy.Revised DPS 9061.09 to Account for Full Valve Travel & Verified MSIV Operability Before Plant Start Up	on 880426,MSIV Closure Time Testing Was Not Adequate,Due to Procedural Inadequacy.Revised DPS 9061.09 to Account for Full Valve Travel & Verified MSIV Operability Before Plant Start Up	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 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 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2)(1)
05000461/LER-1997-016, :on 970617,failure to Provide Emergency Lighting for Safe Shutdown Equipment as Required by Plant Design Basis Was Noted.Cause Could Not Be Determined.Review of Each Fire Area in SSA Conducted	on 970617,failure to Provide Emergency Lighting for Safe Shutdown Equipment as Required by Plant Design Basis Was Noted.Cause Could Not Be Determined.Review of Each Fire Area in SSA Conducted	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)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition
05000461/LER-1997-017, :on 970613,failed to Properly Calibrate MSL Radiation Monitoring.Caused Because Design Document That Provided Setpoints to Be Used Prior to Startup Did Not Address Need to Recalibrate Monitors.Revised Procedure	on 970613,failed to Properly Calibrate MSL Radiation Monitoring.Caused Because Design Document That Provided Setpoints to Be Used Prior to Startup Did Not Address Need to Recalibrate Monitors.Revised Procedure	10 CFR 50.73(a)(2)(vii), Common Cause Inoperability
05000461/LER-1997-018, :on 970823,inadequate Preventive Maint Led to Possible Failure of Westinghouse Dhp Circuit Breakers to Open on Demand.Performed Corrective Maint Tasks on Dhp Circuit Breakers	on 970823,inadequate Preventive Maint Led to Possible Failure of Westinghouse Dhp Circuit Breakers to Open on Demand.Performed Corrective Maint Tasks on Dhp Circuit Breakers	10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor 10 CFR 50.73(a)(2)(viii)
05000461/LER-1997-019, :on 860929,switchgear Heat Removal Sys Fan Discharge Damper Control Circuit Routed Through MCR Was Not Per Design Basis Due to Design Error.Installed Temporary Mod to Disconnect Damper Indication to MCR	on 860929,switchgear Heat Removal Sys Fan Discharge Damper Control Circuit Routed Through MCR Was Not Per Design Basis Due to Design Error.Installed Temporary Mod to Disconnect Damper Indication to MCR	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
05000461/LER-1997-020, :on 970715,discovered Failure to Document Effect of Degraded Coatings in Containment on Eccs.Caused by Failure of Personnel to Perform Evaluation on Degraded Coatings.Performed Evaluation & Removed Degraded Coatings	on 970715,discovered Failure to Document Effect of Degraded Coatings in Containment on Eccs.Caused by Failure of Personnel to Perform Evaluation on Degraded Coatings.Performed Evaluation & Removed Degraded Coatings	10 CFR 50.73(a)(2)(vii), Common Cause Inoperability
05000461/LER-1997-021, Forwards LER 97-021-00 & 10CFR21 Rept 21-97-040,re Control Circuit for Division 1 EDG Feed Breaker Which Did Not Meet Basis Due to Design Error	Forwards LER 97-021-00 & 10CFR21 Rept 21-97-040,re Control Circuit for Division 1 EDG Feed Breaker Which Did Not Meet Basis Due to Design Error
05000461/LER-1997-022-01, Forwards LER 97-022-01 & 10CFR21 Rept 21-97-036 Re Design of DG Ventilation Subsystems Outside Design Basis as Result of Failure to Include Min & Max Outside Air Temps Extremes,Due to Design Error.Ler Contains Listed Commitm	Forwards LER 97-022-01 & 10CFR21 Rept 21-97-036 Re Design of DG Ventilation Subsystems Outside Design Basis as Result of Failure to Include Min & Max Outside Air Temps Extremes,Due to Design Error.Ler Contains Listed Commitments
05000461/LER-1997-023-01, Inadequate Work Instructions Leads to Potential Over-Greasing of Motor Bearings Causing Potential Failure of Various Motors Has Been Canceled	Inadequate Work Instructions Leads to Potential Over-Greasing of Motor Bearings Causing Potential Failure of Various Motors Has Been Canceled	10 CFR 50.73(a)(2)(v), Loss of Safety Function
05000461/LER-1997-023, :on 971107,potential Overgreasing of Motor Bearings Causing Potential Failure of Various Motors,Was Determined.Caused by Inadequate Work Instructions.Briefed Electrical & Maint Supervisors on Issue	on 971107,potential Overgreasing of Motor Bearings Causing Potential Failure of Various Motors,Was Determined.Caused by Inadequate Work Instructions.Briefed Electrical & Maint Supervisors on Issue	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(e)(2)
05000461/LER-1997-024, :on 970830,failure to Comply W/Ts Action Statement to Immediately Restore AC Power Sources Was Determined.Caused by Inadequate Interpretation of TS Action. Licensing Providing Staff Guidance	on 970830,failure to Comply W/Ts Action Statement to Immediately Restore AC Power Sources Was Determined.Caused by Inadequate Interpretation of TS Action. Licensing Providing Staff Guidance	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)
05000461/LER-1997-025, :on 971002,design Deficiency Resulted in Plant Being Outside Design Basis for Fire in Main CR Potentially Damaging Valves Required in Safe Shutdown of Plant.Cause Could Not Be Determined.Will Analyze MOV Control Circuits	on 971002,design Deficiency Resulted in Plant Being Outside Design Basis for Fire in Main CR Potentially Damaging Valves Required in Safe Shutdown of Plant.Cause Could Not Be Determined.Will Analyze MOV Control Circuits	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
05000461/LER-1997-026-01, Forwards LER 97-026-01,re Inadequate Procedure for Insp of Shutdown Swps for Excess Silt Which Resulted in Shutdown Swp Inoperability.Commitments Made in Rept,Listed	Forwards LER 97-026-01,re Inadequate Procedure for Insp of Shutdown Swps for Excess Silt Which Resulted in Shutdown Swp Inoperability.Commitments Made in Rept,Listed
05000461/LER-1997-027, :on 900831,installation of Mod of RHR Sys Was Outside Plant Design Basis.Caused by Misinterpretation of 10CFR50.59.Reviewed Current Safety Evaluation Program & Mod to RHR Sys Will Be Installed	on 900831,installation of Mod of RHR Sys Was Outside Plant Design Basis.Caused by Misinterpretation of 10CFR50.59.Reviewed Current Safety Evaluation Program & Mod to RHR Sys Will Be Installed	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
05000461/LER-1997-028, :on 971126,identified Inoperability of All in-service 33 480-volt K-line safety-related Circuit Breakers.Caused by Failure of ABB to Supply Properly Qualified Components Per 10CFR21.Will Replace Components	on 971126,identified Inoperability of All in-service 33 480-volt K-line safety-related Circuit Breakers.Caused by Failure of ABB to Supply Properly Qualified Components Per 10CFR21.Will Replace Components	10 CFR 21.21(c)(4) 10 CFR 21.21(c)(3)
05000461/LER-1997-029, :on 971113,failure to Follow Plant Procedure When Erecting Scaffold Resulted in SR Area Cooler Becoming Inoperable Due to Seismic Qualification Concerns.Caused by Failure to Follow Plant Procedure.Modified Scaffold	on 971113,failure to Follow Plant Procedure When Erecting Scaffold Resulted in SR Area Cooler Becoming Inoperable Due to Seismic Qualification Concerns.Caused by Failure to Follow Plant Procedure.Modified Scaffold	10 CFR 50.73(c)(2)(ii)(B)
05000461/LER-1997-030-01, Forwards LER 97-030-01,re Failure to Verify That RWCU Sys Was Available as Alternate Means of Shutdown Cooling Due to Procedural Inadequacy.Commitments Made within Ltr,Listed	Forwards LER 97-030-01,re Failure to Verify That RWCU Sys Was Available as Alternate Means of Shutdown Cooling Due to Procedural Inadequacy.Commitments Made within Ltr,Listed
05000461/LER-1997-031, :on 971113,inadequate Testing of SR Logic Circuits Resulted in Failure to Meet TS Sr.Cause Has Not Been Determined.No Actions Have Been Taken at Present Time	on 971113,inadequate Testing of SR Logic Circuits Resulted in Failure to Meet TS Sr.Cause Has Not Been Determined.No Actions Have Been Taken at Present Time
05000461/LER-1997-033, :on 971218,shift Supervisor Recognized That Containment Bldg Fuel Transfer Pool Ventilation Plenum Exhaust Radiation Monitors Declared Inoperable.Caused by Misinterpretation of Tech Specs.Operations on TS Revised	on 971218,shift Supervisor Recognized That Containment Bldg Fuel Transfer Pool Ventilation Plenum Exhaust Radiation Monitors Declared Inoperable.Caused by Misinterpretation of Tech Specs.Operations on TS Revised	10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 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) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1)
05000461/LER-1997-034-01, Forwards LER 97-034-01 & Part 21 Rept 21-97-051 Re Incorrect Cable Resistance & Brake Horsepower Data Used in Design of Divisions 1 & 2 EDG Vent Fans Which Resulted in Design of Fan Monitors Being Outside Design Basis of Pla	Forwards LER 97-034-01 & Part 21 Rept 21-97-051 Re Incorrect Cable Resistance & Brake Horsepower Data Used in Design of Divisions 1 & 2 EDG Vent Fans Which Resulted in Design of Fan Monitors Being Outside Design Basis of Plant
05000461/LER-1997-034, Forwards 930414 S&L Electrical Engineering Std ESA-102 W/Copyright Statement Removed.Encl Originally Submitted w/980205 Info Re CPS Combined LER 97-034-00 & Part 21 Rept Contained Copyright Statement	Forwards 930414 S&L Electrical Engineering Std ESA-102 W/Copyright Statement Removed.Encl Originally Submitted w/980205 Info Re CPS Combined LER 97-034-00 & Part 21 Rept Contained Copyright Statement
05000461/LER-1997-035-01, Forwards LER 97-035-01,re Divisions 1 & 2 Battery Chargers Incapable of Supplying Full Rated Voltage & Current Flow at Degraded Voltage Trip Setpoint IAW Plant TS & Design Basis.Commitments Made within Ltr,Listed	Forwards LER 97-035-01,re Divisions 1 & 2 Battery Chargers Incapable of Supplying Full Rated Voltage & Current Flow at Degraded Voltage Trip Setpoint IAW Plant TS & Design Basis.Commitments Made within Ltr,Listed
05000461/LER-1997-036, :on 971222,engineering Completed Evaluation of Missing Motor Shaft Key That Connects Motor to Fan Hub of Div II Shutdown SW Pump Room Cooler.Caused by Inoperability of Room Cooler.Cooling Fan Restored,Per 10CFR21	on 971222,engineering Completed Evaluation of Missing Motor Shaft Key That Connects Motor to Fan Hub of Div II Shutdown SW Pump Room Cooler.Caused by Inoperability of Room Cooler.Cooling Fan Restored,Per 10CFR21	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 21.21(d)(4) 10 CFR 21.21(d)(3)

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