05000458/FIN-2012005-03

Finding

Title

Failure to Implement Effective Corrective Actions for Defects in Masterpact Breakers

Description

The inspectors reviewed a self-revealing, non-cited violation of 10 CFR Part 50, Appendix B, Criterion XVI, for the failure to promptly correct a condition adverse to quality. Specifically, station personnel failed to implement repairs to the mechanism-operated contact linkages for safety-related breakers, ultimately resulting in the failure of standby gas treatment filtration train 1B to start on demand. This issue was entered into the licensees corrective action program as Condition Report CR-RBS-2012-005894. The failure to correct a condition adverse to quality is a performance deficiency. This performance deficiency is more-than-minor because it is associated with the systems, structures, and components and barrier performance attributes of the barrier integrity cornerstone and adversely affected the cornerstone objective to provide reasonable assurance that physical design barriers (fuel cladding, reactor coolant system, and containment) protect the public from radionuclide releases caused by accidents or events. Specifically, the standby gas treatment exhaust filter train failed to start during a surveillance test because of a nonconforming mechanical linkage in the feeder breaker resulting in unavailability for standby gas train 1B. In accordance with NRC Inspection Manual Chapter 0609, Attachment 4, Initial Characterization of Findings, and NRC Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process for Findings At Power, Exhibit 3, Section C, question 1, the finding screened as very low safety significance (Green), because the finding represented only a degradation of the radiological barrier function provided by the standby gas treatment system. No cross-cutting aspect was assigned to this finding because the NRC concluded the finding did not reflect current licensee performance

03
Site:	River Bend
Report	IR 05000458/2012005 Section 1R22
Date counted	Dec 31, 2012 (2012Q4)
Type:	NCV: Green
cornerstone	Barrier Integrity
Identified by:	NRC identified
Inspection Procedure:	IP 71111.22
Inspectors (proximate)	A Barrett J Laughlin G Larkin D Proulx
INPO aspect
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v • d • e

Finding - River Bend - IR 05000458/2012005

1(0)2(10)3(7)4(4)5(6)6(0)9(8)10(8)11(0)12(5)13(0)301(0)403(2)404(1)503(0)801(0)31(0)

IR 05000458/2012005: 1 2 3 4 5 6

Finding List (River Bend) @ 2012Q4

CCA Matrix: 2012Q4

	Q	CCA	Title
05000458/FIN-2012002-09	2012Q1		Failure to Properly Fabricate and Install the mid-Standard Turbine Shaft Brush
05000458/FIN-2012002-08	2012Q1	H.2	Failure to Control Access to a High Radiation Area
05000458/FIN-2012002-07	2012Q1	H.8	Failure to Perform a Radiation Survey
05000458/FIN-2012002-06	2012Q1	H.7	Inadequate Maintenance Instructions for the Suppression Pool Cooling Isolation Valves
05000458/FIN-2012002-05	2012Q1	H.8	Inadequate Relief Valve Configuration Control Results in a Reactor Downpower
05000458/FIN-2012002-04	2012Q1	H.7	Failure to Appropriately Set Reactor Core Isolation Cooling Flow Controller High Output Limit
05000458/FIN-2012002-03	2012Q1	H.14	Failure to Verify Assumptions used in Standby Equipment Room Temperature Analysis
05000458/FIN-2012002-02	2012Q1	H.8	Failure to Appropriately Assess and Manage Risk for Internal Flooding Events
05000458/FIN-2012002-01	2012Q1	H.9	Failure to Adequately Monitor the Performance of the Digital Radiation Monitoring System
05000458/FIN-2012003-04	2012Q2		Failure to Properly Assemble Turbine Control Valve Push ROD-SPRING Housing Coupling
05000458/FIN-2012003-03	2012Q2	P.1	High Pressure Core Spray Diesel Generator Bearing Lubrication Deficiencies
05000458/FIN-2012003-02	2012Q2	H.13	Failure to Follow Severe Weather Operations Procedure
05000458/FIN-2012003-01	2012Q2	H.2	Failure to Follow Procedure to Protect Sensitive Plant Areas
05000458/FIN-2012003-05	2012Q2		Failure to Specify Manual Actions for Safety Relief Valve Operations During a Station Blackout Event
05000458/FIN-2012004-01	2012Q3		Improper Hydrogen Igniter Breaker Trip Coil Setting
05000458/FIN-2012004-02	2012Q3	H.6	Untimely Corrective Actions to Ensure Reliability of the 480 Vac Molded Case Circuit Breakers and Unitized Motor Starters
05000458/FIN-2012004-03	2012Q3	P.5	Failure to Appropriately Tune the Reactor Core Isolation Cooling Turbine Speed Controller
05000458/FIN-2012004-04	2012Q3	H.5	Inadequate Verification of Leading Edge Flow Meter Functionality
05000458/FIN-2012009-01	2012Q3		Main Control Room Annunciator Control and Conduct of Operations
05000458/FIN-2012009-02	2012Q3		Past Operability of the Reactor Core Isolation Cooling System
05000458/FIN-2012009-03	2012Q3		Implementation of the Procedure for Infrequently Performed Tests or Evolutions
05000458/FIN-2012009-04	2012Q3		Corrective Action Program Implementation for Prior Lockout Relay Failure in February 2011
05000458/FIN-2012009-05	2012Q3		Implementation of Vendor and Industry Recommended Relay Testing and Maintenance
05000458/FIN-2012009-06	2012Q3		Implementation of the Station Cable Reliability Program
05000458/FIN-2012009-07	2012Q3		Onsite Safety Review Committee Implementation
05000458/FIN-2012009-08	2012Q3		Ability to Promptly Staff the Fire Brigade at All Times During Plant Operation
05000458/FIN-2012010-07	2012Q3	H.13	Loss of Onsite Safety Review Committee Independence
05000458/FIN-2012010-06	2012Q3	P.5	Failure to Establish an Adequate Cable Reliability Program
05000458/FIN-2012010-05	2012Q3		Failure to Est Lockout Relays in Accordance with Vendor Testing Practices
05000458/FIN-2012010-04	2012Q3	H.5	Failue to Implement Effective Corrective Actions for Lockout Relay Failures
05000458/FIN-2012010-08	2012Q3	H.7	Failure to Prevent Conflicts of Duty for Fire Brigade Members
05000458/FIN-2012010-01	2012Q3		Failure to Correct Spurious Isolation of Reactor Core Isolation Cooling System
05000458/FIN-2012010-03	2012Q3	H.14	Failure to Establish an Adequate Controlling Procedure for Stroking Safety Relief Valves at LOW Power
05000458/FIN-2012010-02	2012Q3	H.14	Failure to Declare Reactor Core Isolation Cooling System Inoperable
05000458/FIN-2012012-01	2012Q4	H.8	Failure to Identify and Correct a Condition Adverse to Quality
05000458/FIN-2012012-02	2012Q4	P.4	Failure to Promptly Identify and Correct a Condition Adverse to Quality
05000458/FIN-2012012-03	2012Q4		Failure to Maintain Design Control of the Feedwater Control System
05000458/FIN-2012012-04	2012Q4	P.2	Failure to Correct an Identified Condition Adverse to Quality
05000458/FIN-2012012-05	2012Q4	P.2	Failure to Correct the Maintenance Organizations Inadequate Procedure Use and Adherence
05000458/FIN-2012403-02	2012Q4		Security
05000458/FIN-2012403-01	2012Q4		Security
05000458/FIN-2012005-04	2012Q4	H.12	Failure to Follow Procedure for Lifting Leads Results in Inoperability of Standby Service Water Fan
05000458/FIN-2012005-03	2012Q4		Failure to Implement Effective Corrective Actions for Defects in Masterpact Breakers
05000458/FIN-2012005-02	2012Q4	P.2	Inadequate Procedures for Lubrication of the Standby Liquid Control Pump Motor Bearings
05000458/FIN-2012005-01	2012Q4		Failure to Maintain Design Control of the Control Building Chilled Water System

Self-Identified List (River Bend)

	Q	Title
05000458/FIN-2012002-10	2012Q1	Licensee-Identified Violation
05000458/FIN-2012003-06	2012Q2	Licensee-Identified Violation
05000458/FIN-2012003-07	2012Q2	Licensee-Identified Violation
05000458/FIN-2012404-01	2012Q2	Security
05000458/FIN-2012005-05	2012Q4	Licensee-Identified Violation
05000458/FIN-2012005-06	2012Q4	Licensee-Identified Violation

[River Bend Findings full list]

05000458/FIN-2012005-03

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