05000271/FIN-2013003-02

Finding

Title

Failure to Maintain Compensatory Measures Required for a Barrier Breach Permit for the A Emergency Diesel Generator Room

Description

The inspectors identified a NCV of Technical Specification (TS) 6.4, Procedures, because Entergy did not implement a barrier breach permit required by procedure. Specifically, Entergy personnel created three open penetrations to the A emergency diesel generator (EDG) room when the barrier breach permit for the planned modification allowed only one hole at a time. Entergys corrective action to restore compliance consisted of placing the issue into their corrective action program and installing the tubing and grouting the three holes. The inspectors determined that Entergys failure to properly implement a barrier breach permit by opening three holes in the A EDG room west wall instead of only one was a performance deficiency that was reasonably within Entergys ability to foresee and correct and should have been prevented. This finding is more than minor because it is associated with the design control attribute of the Mitigating Systems cornerstone and affected the cornerstone objective to ensure the capability of systems that respond to initiating events to prevent undesirable consequences (i.e. core damage). Specifically, the capability of the A EDG room west wall to limit the intrusion of a high energy line break into the A EDG room was reduced more than allowed and accepted by the barrier breach permit, and the equipment within the A EDG room was only qualified for a mild environment (i.e. not a steam or high temperature environment). Additionally, the finding is similar to IMC 0612, Appendix E, Examples of Minor Issues, examples 3.i. and 3.j., more than minor descriptions, because the accident analysis calculation had to be re-performed to assure the accident analysis requirements were met and there was reasonable doubt on the operability of the equipment without the re-analysis. In accordance with IMC 0609.04, Initial Characterization of Findings, and IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, issued June 19, 2012, the inspectors determined that this finding is of very low safety significance (Green) because the finding is a deficiency affecting the qualification of a mitigating structure but the structure maintained its functionality. Specifically, the A EDG room west wall would have sufficiently limited the intrusion of steam from a design basis high energy line break (HELB) to maintain the operability of equipment within the A EDG room. The inspectors determined that the finding has a cross-cutting aspect in the Human Performance area, Work Control component, because Entergy personnel did not appropriately coordinate work activities by incorporating actions to address the need to keep personnel apprised of the operational impact of work activities. Specifically, Entergy identified the need for compensatory measures for the barrier breach permit (i.e., drilling only one hole at a time), but the necessary actions were not sufficiently communicated to maintenance or operations personnel H.3(b)

02
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Report	IR 05000271/2013003 Section 1R04
Date counted	Jun 30, 2013 (2013Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.04
Inspectors (proximate)	S Rutenkroger J Furia J Laughlin F Bower B Sienel R Clagg J Nicholson S Rich J Deboer
Violation of:	Technical Specification - Procedures Technical Specification
CCA	H.5, Work Management
INPO aspect	WP.1
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v • d • e

Finding - Vermont Yankee - IR 05000271/2013003

1(0)2(4)3(4)4(3)5(2)6(0)7(0)8(1)201(0)202(1)301(0)403(0)404(0)503(0)

IR 05000271/2013003: 1 2 3 1

Finding List (Vermont Yankee) @ 2013Q2

CCA Matrix: 2013Q2

	Q	CCA	Title
05000271/FIN-2012004-01	2012Q3	H.8	Incorrect Assessment of Equipment Condition Resulted in Single Recirculating LOOP Operation
05000271/FIN-2012004-02	2012Q3	H.9	Dedicated Operators Required for Operability Under Applied Administrative Controls Left Immediate Vicinity of Open Valves
05000271/FIN-2012005-01	2012Q4	H.14	Failure of the B Emergency Diesel Generator from Jacket Water Leakage Due to Inadequate Corrective Action
05000271/FIN-2013002-01	2013Q1	P.1	Appendix R Fire Door Not Latching Closed Due to Misalignment
05000271/FIN-2013002-02	2013Q1	H.5	Failure to Implement Compensatory Measures Associated with a Temporary Modification
05000271/FIN-2013002-03	2013Q1	P.5	Inadequate Corrective Action for Maintaining Operability of the LOW Pressure Coolant Injection Battery UPS-1A
05000271/FIN-2013002-04	2013Q1	H.14	Failure of the B Emergency Diesel Generator from Jacket Water Leakage Due to Inadequate Corrective Action
05000271/FIN-2013003-01	2013Q2	P.1	Inadequate Corrective Actions for Sealing Flood Pathways into the Electrical Switchgear Rooms
05000271/FIN-2013003-02	2013Q2	H.4 H.5	Failure to Maintain Compensatory Measures Required for a Barrier Breach Permit for the A Emergency Diesel Generator Room
05000271/FIN-2013003-03	2013Q2	H.7	Inadequate Procedure for Configuration Control Results in a Dislodged Secondary Containment Blowout Panel Due to Reactor Building Ventilation System Pressurization
05000271/FIN-2013008-01	2013Q2		Improper Maintenance Rule Scoping of the Reactor Building HVAC System
05000271/FIN-2013202-01	2013Q2	H.13	Security

Self-Identified List (Vermont Yankee)

	Q	Title
05000271/FIN-2012005-02	2012Q4	Licensee-Identified Violation

[Vermont Yankee Findings full list]

05000271/FIN-2013003-02

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