05000324/FIN-2011004-05: Difference between revisions

Finding

Title

LICENSEE-IDENTIFIED Violation

Description

Technical Specification (TS) 3.3.6.1, Primary Containment Isolation Instrumentation, requires that the RWCU high differential flow instrumentation be operable in modes 1, 2, or 3. If the instrumentation is not operable, then TS 3.3.6.1 requires that the RWCU penetration flow path be isolated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />. Contrary to the above, the licensee identified that the RWCU high differential flow instrumentation was not operable and the penetration flow path was not isolated when the unit entered mode 1 on April 16, 2011 until August 2, 2011, because the RWCU inlet flow sensing element was installed backwards, causing the flow sensing element to be inaccurate. The resulting inaccuracy caused the instrumentation to be unable to isolate within the required TS limit of less than or equal to 73 gallons per minute differential flow. The finding was determined to be of very low safety significance per Appendix A of Inspection Manual Chapter 0609, Significance Determination Process, because the finding: 1) did not only represent a degradation of the radiological barrier function provided for the control room, auxiliary building, spent fuel pool, or the standby gas treatment system, 2) did not represent a degradation of the barrier function of the control room against smoke or a toxic atmosphere, and 3) did not represent an actual open pathway in the physical integrity of reactor containment. Upon discovery of the condition, the licensee isolated the affected penetration flow path and installed the flow sensing element correctly. The issue is in the licensees CAP as NCR #479248.

05
Site:	Brunswick
Report	IR 05000324/2011004 Section 4OA7
Date counted	Sep 30, 2011 (2011Q3)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	M Riley T Ross A Nielsen S Walker T Morrissey R Musser A Rogers G Kolcum P Lessard J Eargle L Pressley M Schwieg
INPO aspect
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v • d • e

Finding - Brunswick - IR 05000324/2011004

2(2)3(2)4(5)5(1)6(0)8(0)9(0)11(0)12(0)402(0)405(0)502(0)10(0)13(1)

IR 05000324/2011004: 1 2 3 4 5

Finding List (Brunswick) @ 2011Q3

CCA Matrix: 2011Q3

	Q	CCA	Title
05000324/FIN-2010008-01	2011Q1	H.8	Failure to Analyze MOV Operation with Transient Voltages
05000324/FIN-2010008-02	2011Q1	H.8	Failure to Promptly Identify and Correct Isolation Override Circuitry Testing Deficiencies
05000324/FIN-2011002-01	2011Q1		Failure To Adequately Evaluate And Correct A Condition Adverse To Quality Involving A Manufacturing Defect Of Barton Model 199 Dual Dampener Differential Pressure Units
05000324/FIN-2011002-02	2011Q1	H.5	Failure to follow procedures for analyzing radiological air samples for the presence of alpha emitters
05000324/FIN-2010008-03	2011Q1	P.2	Failure to Perform Appropriate Corrective Actions for Deficiencies with Opening a Service Water Valve
05000324/FIN-2011003-01	2011Q2		Failure To Adequately Evaluate And Correct A Condition Adverse To Quality Involving A Manufacturing Defect Of Barton Model 199 Dual Dampener Differential Pressure Units
05000324/FIN-2011004-01	2011Q3	H.5	Inadequate Configuration Control Resulted in Rainwater Intrusion into the Unit 2 Reactor Building
05000324/FIN-2011004-02	2011Q3	P.2	Inadequate Corrective Actions for Control Building Air Conditioning Failures
05000324/FIN-2011004-03	2011Q3		Inadequate Maintenance Results in Containment Isolation Valve Failure

Self-Identified List (Brunswick)

	Q	Title
05000324/FIN-2010005-01	2010Q4	Licensee-Identified Violation
05000324/FIN-2011003-02	2011Q2	Licensee-Identified Violation
05000324/FIN-2011004-04	2011Q3	Licensee-Identified Violation
05000324/FIN-2011004-05	2011Q3	Licensee-Identified Violation

[Brunswick Findings full list]

@@ Line 1: / Line 1: @@
 {{finding
-| title = Licensee-Identified Violation
+| title = LICENSEE-IDENTIFIED Violation
 | docket = 05000324, 05000325
 | inspection report = IR 05000324/2011004

05000324/FIN-2011004-05: Difference between revisions

Revision as of 22:13, 29 May 2018

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05000324/FIN-2011004-05: Difference between revisions

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