05000259/FIN-2010006-02

Finding

Title

Failure to Implement the Provisions of Preventative Maintenance (PM) Program Which Contributed to a Manual Reactor Scram

Description

The inspectors identified a finding for the licensees failure to implement the applicable provisions of the Tennessee Valley Authority (TVA) Preventative Maintenance (PM) Program to replace the coil in the solenoid valve controlling the opening of the Unit 3 Condensate Demineralizer bypass valve on the specified PM frequency. Failure of this coil was identified as a contributing cause in Root Cause Analysis for PER 200203, Unit 3 Manual Scram Due to Lowering Reactor Water Level. This finding was entered into the licensees corrective action program as PER 245390. The inspectors determined that the licensees failure to implement the TVA PM program was a performance deficiency. The performance deficiency was determined to be more than minor because it was associated with the Initiating Events cornerstone attribute of Equipment Performance, and adversely affected the cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during at power operations, since failure to implement the provisions of the PM program increased the likelihood of a component failure which contributed to a plant transient. Specifically the failure of the solenoid coil contributed to a reactor trip. The inspectors determined that the finding was of very low safety significance because it did not contribute to both the likelihood of a reactor trip and the likelihood that mitigating equipment or functions were not available. The inspectors determined that this finding directly involved the cross-cutting area of Human Performance, component of Work Practices and aspect of Procedural Compliance because licensee personnel failed to follow the guidance contained in the Preventive Maintenance program resulting in a plant transient.

02
Site:	Browns Ferry
Report	IR 05000259/2010006 Section 4OA2
Date counted	Sep 30, 2010 (2010Q3)
Type:	Finding: Green
cornerstone	Initiating Events
Identified by:	NRC identified
Inspection Procedure:	IP 71152
Inspectors (proximate)	G Hopper A Sabisch P Higgins M Barillas
CCA	H.8, Procedure Adherence
INPO aspect	WP.4
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Finding - Browns Ferry - IR 05000259/2010006

2(8)3(0)4(7)5(3)6(6)8(0)201(0)301(0)402(0)502(0)

IR 05000259/2010006: 1 2 3 4 5 6

Finding List (Browns Ferry) @ 2010Q3

CCA Matrix: 2010Q3

	Q	CCA	Title
05000259/FIN-2009005-01	2009Q4	P.2	Failure to Report an Automatic RPS Actuation While Shutdown Per 10 CFR 50.73
05000259/FIN-2009005-03	2009Q4	H.7	Inadequate Operating Procedures Cause Partial Loss of Reactor Feedwater Which Results In Unit 2 Manual Reactor Scram
05000259/FIN-2009008-02	2009Q4		Violation of 10CFR50, Appendix B, Criterion V for Inadequate Procedure for Emergency Equipment Cooling Water System Flow Balancing
05000259/FIN-2009008-01	2009Q4	P.5	Violation of Technical Specification 5.4.1 for Failure to Develop Adequate Procedures to Ensure Tornado Depressurization Protection of the Emergency Diesel Generators
05000259/FIN-2009005-04	2009Q4	P.1 P.1(a)	Unit 2 RCIC System Inoperable Beyond the Technical Specification Allowed Outage Time
05000259/FIN-2009009-02	2009Q4	H.5	Failure to Establish Adequate Compensatory Measures for an Out-of-Service Hose Station
05000259/FIN-2009009-01	2009Q4	H.5	Deficiencies with Emergency Lighting Units
05000259/FIN-2009008-03	2009Q4		Safety-Related Molded Case Circuit Breakers
05000259/FIN-2009009-04	2009Q4	P.2	Failure to Meet the Requirements of 10 CFR Part 50, Appendix R, Section III.G.1 for 20 Fire Areas
05000259/FIN-2009009-03	2009Q4	P.3	Failure to Protect Cables of Systems Necessary to Achieve and/or Maintain Post-Fire Safe Shutdown Conditions for Fire Areas Subject to the Requirements of 10 CFR Part 50, Appendix R, Section III.G.2
05000259/FIN-2009005-02	2009Q4	P.3	Failure to Report a Safety System Functional Failure Per 10 CFR 50.73
05000259/FIN-2010002-02	2010Q1	H.8	New Fuel Receipt Inspection and Refueling Operations Supervised By Non-qualified Senior Reactor Operators
05000259/FIN-2010002-03	2010Q1	H.12	Operators Failed to Correctly Monitor and Assess RPV Beltline Temperatures During RPV Hydrostatic/In-service Leak Test
05000259/FIN-2010002-04	2010Q1	H.7	Inadequate Surveillance Procedure To Ensure All Relevant RPV Metal Temperatures Were Monitored During RPV Hydrostatic/In-service Leak Testing
05000259/FIN-2010002-01	2010Q1	P.2	Failure to Effectively Maintain Performance of the A3 EECW Pump as Required by 10 CFR 50.65(a)(2)
05000259/FIN-2010002-05	2010Q1	P.3	Untimely Corrective Actions to Restore Compliance of EECW Pump In-Service Testing with ASME OM Code Requirements
05000259/FIN-2010004-01	2010Q3		Uncontrolled Materials Adversely Impacted the Capability of the EDG Building Emergency Drainage System to Mitigate an Internal Flooding Event
05000259/FIN-2010004-04	2010Q3	P.2	Failure to Perform Functional Evaluations for Gas Identified During Venting
05000259/FIN-2010006-04	2010Q3	P.3	Failure to Correct a Condition Adverse to Quality Associated Cooling Water Flow Degradation in the 1B Core Spray Room Cooler
05000259/FIN-2010006-01	2010Q3	P.2	Failure To Correct The EECW Valves Throttled Below Analyzed Condition
05000259/FIN-2010006-03	2010Q3	P.3	Failure to Correct a Condition Adverse to Quality Associated with the 2D Residual Heat Removal (RHR) Room Cooler
05000259/FIN-2010006-05	2010Q3	H.7	Failure to maintain an Adequate Surveillance Procedure to Prevent an Unplanned HPCI Isolation
05000259/FIN-2010006-06	2010Q3	H.7	Inadequate Maintenance Procedure for Siemens Horizontal Vacuum Circuit Breakers Circuit Breakers
05000259/FIN-2010004-02	2010Q3	H.8	Failure to Adequately Assess Online Risk Associated With Maintenance Activities on Risk Significant SSCs
05000259/FIN-2010006-02	2010Q3	H.8	Failure to Implement the Provisions of Preventative Maintenance (PM) Program Which Contributed to a Manual Reactor Scram
05000259/FIN-2010004-03	2010Q3	P.3	Failure to Adequately Test Molded Case Circuit Breakers

Self-Identified List (Browns Ferry)

	Q	Title
05000259/FIN-2009008-04	2009Q4	Licensee-Identified Violation
05000259/FIN-2010002-07	2010Q1	Licensee-Identified Violation
05000259/FIN-2010002-06	2010Q1	Licensee-Identified Violation
05000259/FIN-2010002-08	2010Q1	Licensee-Identified Violation
05000259/FIN-2010004-05	2010Q3	Licensee-Identified Violation
05000259/FIN-2010004-06	2010Q3	Licensee-Identified Violation
05000259/FIN-2010004-07	2010Q3	Licensee-Identified Violation

[Browns Ferry Findings full list]

05000259/FIN-2010006-02

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