05000458/FIN-2011002-03

Finding

Title

Inadequate Control Rod Inspection Procedure

Description

The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, involving an inadequate control rod inspection procedure. Specifically, the stations procedures only required inspection of a only 20 percent of the control rods that exceeded the inspection criteria, instead of all of them. The station currently has 18 CR 82M control rods in the reactor core in shutdown locations that have exceeded Westinghouses inspection threshold exposure limits. In response to the inspectors inquries, the licensee reviewed their water chemistry and concluded the current tritium and boron levels indicated there was margin for control rod operability. The licensee intends to monitor the reactor coolant for increasing boron and tritium levels throughout this operating cycle. The licensee placed this issue into their corrective action program as Condition Report CR-RBS-2011-01704. The finding is more than minor because it is associated with the equipment performance attribute of the reactor safety Mitigating Systems Cornerstone, and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using Inspection Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheet, the finding is determined to be of very low safety significance (Green) because it did not result in a loss of system safety function. The inspectors determined that the apparent cause of the performance deficiency was River Bend Stations failure to communicate relevant operating experience to affected internal and external stakeholders. This finding has a crosscutting aspect in the area of problem identification and resolution associated with the operating experience component because the licensee failed to appropriately apply all the CR 82M control rod inspection requirements provided by the control rod vendor P.2(b) (Section 1R20).

03
Site:	River Bend
Report	IR 05000458/2011002 Section 1R20
Date counted	Mar 31, 2011 (2011Q1)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.2
Inspectors (proximate)	T Farina L Ricketson P Elkmann B Tharakan R Kopriva D Stearns A Barrett G Larkin V Gaddy D Strickland
CCA	P.5, Operating Experience
INPO aspect	CL.1
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v • d • e

Finding - River Bend - IR 05000458/2011002

9(3)1(0)2(9)3(3)4(7)5(2)6(2)7(0)8(9)402(1)403(1)501(0)29(0)

IR 05000458/2011002: 1 2 3 4 5 6 7 8 9

Finding List (River Bend) @ 2011Q1

CCA Matrix: 2011Q1

	Q	CCA	Title
05000458/FIN-2010004-02	2010Q3		Failure to provide complete and accurate information by failing to disclose its reliance on a contract in the March 2009 funds status report (10 CFR 50.75(f)(1) and 10 CFR 50.9)
05000458/FIN-2010004-06	2010Q3		Inadequate Maintenance Results in Unplanned Opening of Main Turbine Bypass Valve
05000458/FIN-2010004-05	2010Q3		Inadequate High Pressure Core Spray Pump Room Cooler Bearing Maintenance
05000458/FIN-2010004-04	2010Q3	H.14	Failure to Maintain Licensed Operator Examination Integrity
05000458/FIN-2010004-03	2010Q3		Use of a decommissioning funding mechanism that did not meet the requirements of 10 CFR 50.75(e)(1)(v)
05000458/FIN-2010004-01	2010Q3		Failure to provide adequate decommissioning funding assurance from Dec. 31, 2008 through the present (10 CFR 50.75(b))
05000458/FIN-2010005-01	2010Q4	P.5	Failure to Develop a Preventive Maintenance Schedule to Specify Inspection or Replacement of the O-Ring in the High Pressure Core Spray Lower Motor Bearing Drain Plug
05000458/FIN-2010005-02	2010Q4	H.7	Two Examples of Completing Maintenance that Affected the Performance of Safety-Related Equipment but Was Not Properly Preplanned
05000458/FIN-2010005-05	2010Q4	H.12	Failure to Plug a Main Condenser Tube in Accordance with an Approved Work Order
05000458/FIN-2010005-03	2010Q4	H.13	Failure to Perform Required Quality Control Inspections
05000458/FIN-2010005-04	2010Q4		Failure to Implement the Experience and Qualification Requirements of the Quality Assurance Program
05000458/FIN-2011002-07	2011Q1	P.5 P.2(b)	Failure to Implement Procedure AOP-0027, Fuel Handling Mishaps
05000458/FIN-2011002-08	2011Q1	P.5	Failure to follow Fuel Handling Guidelines
05000458/FIN-2011403-01	2011Q1	H.9	Security
05000458/FIN-2011002-06	2011Q1	H.5	Failure to Properly Control and Guard the Entrance to a Locked High Radiation Area
05000458/FIN-2011002-05	2011Q1		Reduction in ERO Staffing Decreased Emergency Plan Effectiveness
05000458/FIN-2011002-04	2011Q1	P.2	Feedwater Control System Inadequate Corrective Actions Results in Power Transient
05000458/FIN-2011002-03	2011Q1	P.5 P.2(b)	Inadequate Control Rod Inspection Procedure
05000458/FIN-2011002-02	2011Q1		Failure to Determine the Appropriate Preventive Maintenance Strategy and Task Frequency for the Reactor Core Isolation Cooling System Turbine Lube Oil Cooler Inlet Pressure Control Valve
05000458/FIN-2011002-01	2011Q1	H.2(a) H.6	Repetitive Service Water Pressure Control Valves Diaphragm Failures Affecting Control Building Chillers Operability

Self-Identified List (River Bend)

	Q	Title
05000458/FIN-2010004-07	2010Q3	Licensee-Identified Violation
05000458/FIN-2010005-06	2010Q4	Licensee-Identified Violation
05000458/FIN-2010005-07	2010Q4	Licensee-Identified Violation
05000458/FIN-2011002-09	2011Q1	Licensee-Identified Violation

[River Bend Findings full list]

05000458/FIN-2011002-03

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