05000482/FIN-2011003-09

Finding

Title

Inadequate Fire Watch Defeats Halon Fire Suppression in Vital Switchgear Rooms During Fire

Description

The inspectors reviewed a self-revealing noncited violation of License Condition 2.C.5 for failure to implement adequate fire watches which affected both trains of vital ac and dc switchgear. The inadequate fire watches occurred during an actual fire which negated the Halon system discharge because internal fire doors were not shut, as required, by the fire watch. The inspectors found problems with fire impairments and watches from 2008 that had not been corrected. Subsequent to the fire, Wolf Creek again briefed and trained its personnel on the requirements for fire watches. This issue is captured in the corrective action program as Condition Report 36719. Failure to implement adequate fire impairments such that the fire watches ensured the success of the Halon system was a performance deficiency. The performance deficiency was more than minor because it impacted the Initiating Events Cornerstone and its objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Specifically, the protection against external factors attribute was impacted by the fire impairment. To determine significance, the inspectors used Inspection Manual Chapter 0609.04 to screen the finding to Inspection Manual Chapter 0609, Appendix F, because the fire protection defense-in-depth strategies involving automatic suppression, fire barriers, and administrative controls were degraded. The senior reactor analyst conducted a Phase 3 review of this finding and concluded that the incremental core damage frequency was 1.6E-8 per year, or very low safety significance (Green). The inspectors found that the cause of the finding had a cross-cutting aspect in the area of problem identification and resolution. Specifically, corrective actions from ineffective fire watches in 2008 did not prevent recurrence of the inadequate fire watch on April 5, 2011.

09
Site:	Wolf Creek
Report	IR 05000482/2011003 Section 4OA3
Date counted	Jun 30, 2011 (2011Q2)
Type:	NCV: Green
cornerstone	Initiating Events
Identified by:	Self-revealing
Inspection Procedure:	IP 71153
Inspectors (proximate)	A Fairbanks C Long C Peabody D Reinert D Strickland G Guerra G Miller G Pick J Drake
CCA	P.3, Resolution
INPO aspect	PI.3
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v • d • e

Finding - Wolf Creek - IR 05000482/2011003

1(0)2(14)3(12)4(9)5(6)6(2)7(6)8(0)9(2)402(0)403(0)25(0)

IR 05000482/2011003: 1 2 3 4 5 6 7 8 9 10 11 12

Finding List (Wolf Creek) @ 2011Q2

CCA Matrix: 2011Q2

	Q	CCA	Title
05000482/FIN-2010006-01	2010Q3	H.7	Failure to Resolve Degraded Conditions in a Timely Manner
05000482/FIN-2010006-02	2010Q3	P.3	Unqualified Scaffolding Erected Near Safety-Related Equipment
05000482/FIN-2010006-03	2010Q3	P.1 P.1(a)	Failure to Adequately Monitor Control Room Deficiencies
05000482/FIN-2010004-01	2010Q3		Failure to Establish Conditions to Open a Main Steam Isolation Value that Resulted in a Feedwater Isolation
05000482/FIN-2010006-04	2010Q3	H.7	Failure to Update an Operability Evaluation
05000482/FIN-2010006-05	2010Q3	P.2	Failure to Perform Adequate Evaluation for Significant Conditions
05000482/FIN-2010006-07	2010Q3	P.1 P.1(a)	Failure to Determine if a Deficiency Existed in the Ultimate Heat Sink
05000482/FIN-2010006-08	2010Q3	P.2	Notice of Unusual Event Due to Loss of Both Emergency Diesel Generators
05000482/FIN-2010006-09	2010Q3	P.3	Failure to Translate Design Information into a Procedure
05000482/FIN-2010004-02	2010Q3	H.7	Failure to Correct Degraded Vital Switchgear Cooler Wiring
05000482/FIN-2010005-08	2010Q4	P.5	Inadequate Procedures for Establishing Feedwater Preheat
05000482/FIN-2010005-05	2010Q4	P.1	Failure to Identify Boric Acid Leak on Instrument Lines to Reactor Coolant System
05000482/FIN-2010005-06	2010Q4	H.12	Failure to Have Procedures to Prevent Draining Radioactive Systems into Nonradioactive Systems
05000482/FIN-2010005-07	2010Q4	P.1	Failure to Have Adequate Procedures for Meteorological Monitoring
05000482/FIN-2010008-01	2010Q4	H.14	Failure to Promptly Identify and Correct a Condition Adverse to Quality
05000482/FIN-2010005-09	2010Q4	P.5	Inadequate Procedures to Ensure Proper Main Feed Pump Speed During Startup
05000482/FIN-2010007-01	2010Q4		Inadequate Design of Component Cooling Water Safety/Nonsafety Isolation
05000482/FIN-2010007-02	2010Q4	H.7	Failure to Perform Tornado Damper Testing
05000482/FIN-2010007-03	2010Q4		Inadequate Auxiliary Feedwater Pump Suction Line Break Analysis and Design
05000482/FIN-2010007-04	2010Q4		Emergency Diesel Generator Specified Rating did not Address Engine Operation at Design Basis Extreme Meteorological Temperature Conditions
05000482/FIN-2010007-05	2010Q4	H.9	Failure to Translate Design Requirements to Operating Procedures for the Transfer of Residual Heat Removal and Containment Spray Suction to the Containment Recirculation Sumps
05000482/FIN-2010005-01	2010Q4	H.14	Failure to Properly Identify and Evaluate Degraded Piping in the Train A Essential Service Water System
05000482/FIN-2010005-02	2010Q4	H.14	Failure to Account for Water Hammer Stresses in Essential Service Water System Calculations
05000482/FIN-2010005-03	2010Q4	H.7	Failure to Maintain Operator Licensing Examination Integrity
05000482/FIN-2010005-04	2010Q4	P.2	Failure to Evaluate Corrosion Mechanism in Accordance with Code Case N513
05000482/FIN-2010005-10	2010Q4	H.7	Inadequate Procedure for Steam Generator Hi-Hi Turbine Trip
05000482/FIN-2010005-11	2010Q4	H.1	Inadequate Simulation Facility Fidelity
05000482/FIN-2010008-02	2010Q4		Inadequate Procedure for Fill and Vent of the Component Cooling Water System
05000482/FIN-2010008-03	2010Q4	P.2	Failure to Perform an Adequate Operability Evaluation
05000482/FIN-2010008-04	2010Q4	P.2	Failure to Identify and Correct Inadequate RHR Fill and Vent Procedures
05000482/FIN-2011002-09	2011Q1	H.5	Inadequate Clearance Order Disables Power Operated Relief Valve Low temperature Overpressure Function
05000482/FIN-2011006-01	2011Q1	H.9 H.2(b)	Failure to Trend Emergency Diesel Generator Chemistry Parameters Results in an Unplanned Technical Specification Entry
05000482/FIN-2011002-01	2011Q1	H.14	Inadequate Design Control of the Fuel Oil Storage Tank Fill System
05000482/FIN-2011002-02	2011Q1	H.5	Inadequate Clearance Order Isolated Cooling to Inservice Safety-Related Equipment
05000482/FIN-2011002-03	2011Q1	P.2	Failure to Monitor the Performance of Nonsafety-Related Systems and Components Used in the Plant Emergency Operating Procedures under 10 CFR 50.65 Programs
05000482/FIN-2011002-04	2011Q1	P.2	Failure to Follow 10 CFR 50.65 a(2) for Main Control Board Annunciator Power Supply Failures
05000482/FIN-2011002-05	2011Q1		Inadequate Calculation for Vital Switchgear Cooling
05000482/FIN-2011002-06	2011Q1	P.2	Failure to Perform an Operability Determination for Degradation of the Fuel Oil Storage Tank
05000482/FIN-2011002-07	2011Q1	H.4 H.5	Failure to Verify Ultimate Heat Sink Sedimentation Levels within Design Bases
05000482/FIN-2011002-08	2011Q1	P.3	Inadequate Fill and Vent of Component Cooling Water
05000482/FIN-2011002-10	2011Q1	H.13	Repetitive Failure to Enter Technical Specifications for Auxiliary Feedwater Suction Valve Testing
05000482/FIN-2011002-11	2011Q1	H.4 H.5	Failure to Follow Radiation Work Permit Instructions
05000482/FIN-2011003-10	2011Q2	P.2	Failure to Analyze for Vortexing in Containment Spray Additive Tank
05000482/FIN-2011003-01	2011Q2	P.3	No Procedure for Debris in Transformed and Tank Yards Prior to Severe Weather
05000482/FIN-2011003-02	2011Q2	H.12	Failure to Properly Establish Clearance Order Boundary Isolation Resulting in Loss of Component Cooling Water Inventory
05000482/FIN-2011003-03	2011Q2	H.9	Failure to Assure Fillet Weld Met Size Requirements on Train B Charging Header Vent Line
05000482/FIN-2011003-04	2011Q2	H.7	Failure to Assure Separation of Stainless Steel and Carbon Steel Grinding and Cutting Equipment
05000482/FIN-2011003-05	2011Q2	H.9	Failure to Assure Configuration Control of Safety-Related Systems
05000482/FIN-2011003-06	2011Q2	P.3	Inadequate Acceptance Criteria for Postmaintenance Testing of the Startup Feedwater Pump
05000482/FIN-2011003-07	2011Q2	P.2	Failure to Correct Procedure for Opening Main Steam Isolation Valves
... further results

Self-Identified List (Wolf Creek)

	Q	Title
05000482/FIN-2010004-03	2010Q3	Licensee-Identified Violation
05000482/FIN-2011006-02	2011Q1	N/A
05000482/FIN-2011002-12	2011Q1	Licensee-Identified Violation
05000482/FIN-2011002-13	2011Q1	Licensee-Identified Violation
05000482/FIN-2011002-14	2011Q1	Licensee-Identified Violation
05000482/FIN-2011003-11	2011Q2	Licensee-Identified Violation
05000482/FIN-2011003-12	2011Q2	Licensee-Identified Violation

[Wolf Creek Findings full list]

05000482/FIN-2011003-09

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