05000416/FIN-2012005-02

Finding

Title

Failure to Adequately Monitor the Condition of the Auxiliary Building Water Intrusion Barrier

Description

The inspectors identified a non-cited violation of 10 CFR 50.65(a)(2), for the failure to monitor the performance of the auxiliary building water intrusion barrier. The licensee entered this issue into their corrective action program as Condition Report CR-GGN-2012-11740. Corrective actions included initiating Condition Report CR-GGN-2012-12286, in which the licensee concluded the degraded water intrusion barrier had experienced a Maintenance Rule Functional Failure and required further evaluation to determine if the barrier should be classified in 10 CFR 50.65 (a)(1). The finding is more than minor because if left uncorrected, the failure to monitor the performance of the auxiliary building water intrusion barrier in accordance with the maintenance rule program could lead to a more significant safety concern. Specifically, continued unmonitored degradation of the water intrusion barrier could compromise the integrity of the secondary containment function of the auxiliary building. Using Inspection Manual Chapter 0609, Attachment 4, Initial Characterization of Findings, the inspectors determined that the finding affected the Barrier Integrity Cornerstone. In accordance with Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings at Power, the inspectors determined that the finding had a very low safety significance (Green) because the finding only represents a degradation of the radiological barrier function provided for the auxiliary building and standby gas treatment system. The inspectors determined that the apparent cause of this finding was the licensee failed to recognize that the auxiliary building water intrusion barrier was scoped into their Maintenance Rule program with the monitoring criteria of zero occurrences of water intrusion barrier degradation. Therefore, the finding had a cross-cutting aspect in the human performance area, work practices component because the licensee failed to follow maintenance rule program procedures.

02
Site:	Grand Gulf
Report	IR 05000416/2012005 Section 1R12
Date counted	Dec 31, 2012 (2012Q4)
Type:	NCV: Green
cornerstone	Barrier Integrity
Identified by:	NRC identified
Inspection Procedure:	IP 71111.12
Inspectors (proximate)	B Rice D Proulx G George J Laughlin L Carson N Okonkwo R Kumana R Smith S Achen S Makord Proulxg George J Laughlin L Carson N Okonkwo R Kumana R Smith S Achen S Makor B Rice
CCA	H.8, Procedure Adherence
INPO aspect	WP.4
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v • d • e

Finding - Grand Gulf - IR 05000416/2012005

1(0)2(6)3(9)4(2)5(8)6(0)7(0)8(7)9(0)201(0)301(0)403(1)404(3)503(0)801(0)18(0)

IR 05000416/2012005: 1 2 3 4 5 6 7 8

Finding List (Grand Gulf) @ 2012Q4

CCA Matrix: 2012Q4

	Q	CCA	Title
05000416/FIN-2012002-04	2012Q1		Modification of the Spent Fuel Pool without Prior NRC Approval
05000416/FIN-2012002-01	2012Q1	H.8	Failure to Take Timely Corrective Actions Associated with Division 1 and 2 Standby Service Water Safety Related Cables that were Partially Submerged in Cable Manhole/Vault
05000416/FIN-2012002-02	2012Q1	H.14	Manual Reactor Scram Caused by Failure to Ensure the Main Steam Supply Valve to Reactor Feed Pump Turbine B was Full Open
05000416/FIN-2012002-03	2012Q1	H.1	Failure to Perform an Online Risk Assessment Per Severe Weather Off Normal Procedure Due to a Declared Tornado Warning Affecting Grand Gulf Nuclear Station
05000416/FIN-2012002-05	2012Q1	H.5	Failure to Correct a Condition Adverse to Fire Protection, in That the Licensee Failed to Adequately Provide Contingency Lighting in the Fire Brigade Dress Out Area While Normal Lighting was Inoperable
05000416/FIN-2012003-06	2012Q2	H.12	Failure to Follow Procedure Results in Loss of Decay Heat Removal to the Spent Fuel Pool
05000416/FIN-2012003-08	2012Q2	H.2	Failure of Hot-Work Fire Watch to Follow Procedural Requirements
05000416/FIN-2012003-07	2012Q2	H.14	Inappropriate Use of Waivers to Allow Workers to Exceed the Minimum Day Off Rule
05000416/FIN-2012003-05	2012Q2	H.13	Failure to Follow a Post-Modification Test Procedure
05000416/FIN-2012003-04	2012Q2	H.7	Failure to Implement a Surveillance Requirement to Assure that the Limiting Condition for Operation Will be Met
05000416/FIN-2012003-03	2012Q2		Loss of Alternate Method of Decay Heat Removal Due to Reactor Water Clean Up Pumps Tripping on Low Suction Flow Signal
05000416/FIN-2012003-02	2012Q2	H.9	Inadequate Corrective Actions to Address Configuration Control of Previous Non-Cited Violation
05000416/FIN-2012003-01	2012Q2	P.1	Failure to Ensure Materials are Stored Properly in the 500 KV Switchyard
05000416/FIN-2012008-03	2012Q3		Failure to Obtain NRC Approval for a Change to Credible Passive Failures in the Standby Service Water System
05000416/FIN-2012008-07	2012Q3		Potential Internal Flooding Caused by Circulation Water System Failure
05000416/FIN-2012404-03	2012Q3	H.12	Security
05000416/FIN-2012404-02	2012Q3	H.10	Security
05000416/FIN-2012404-01	2012Q3	H.2	Security
05000416/FIN-2012008-06	2012Q3	P.5	Failure to Incorporate Test and Inspection Requirements for 4160 Vac Circuit Breakers into Preventive Maintenance Procedures
05000416/FIN-2012008-05	2012Q3	H.13	Failure to Follow Operability Determination Process Procedure
05000416/FIN-2012008-04	2012Q3	P.1	Failure to Promptly Enter an NRC Violation Regarding the Standby Service Water System into the Corrective Action Program
05000416/FIN-2012008-02	2012Q3	P.2	Failure to Establish a Testing Program for Safety-Related 125 Vdc Circuit Breakers
05000416/FIN-2012008-01	2012Q3	H.7	Preconditioning of 4160 Vac Circuit Breakers for As-Found Tests
05000416/FIN-2012004-02	2012Q3	P.2	Failure to Follow Procedure Results in Inadequate Operability Determination
05000416/FIN-2012005-07	2012Q4		Failure to Establish Gain Settings on APRM and LPRM Instruments in Accordance with Design Requirements
05000416/FIN-2012005-06	2012Q4	H.8	Failure to Evaluate the Risk Significances and Develop Action Plans to Address Equipment Identified During Extent of Condition Review for a Post Scram Root Cause Analysis
05000416/FIN-2012005-05	2012Q4	H.5	Failure To Follow the Radiation Work Permit Requirements During Reactor Cavity High Water Operations
05000416/FIN-2012005-04	2012Q4	H.5	Failure to Adequately Plan and Control Work Activities to Maintain ALARA
05000416/FIN-2012202-01	2012Q4	H.5	Security
05000416/FIN-2012403-01	2012Q4		Security
05000416/FIN-2012005-03	2012Q4		Failure to Implement Adequate Procedure Instructions to Perform Preventive Maintenance Requiring the Periodic Replacement of the Control Relays in GE Magne Blast Circuit Breakers
05000416/FIN-2012005-02	2012Q4	H.8	Failure to Adequately Monitor the Condition of the Auxiliary Building Water Intrusion Barrier
05000416/FIN-2012005-01	2012Q4	P.2	Failure to Make Timely Corrective Actions to Repair the Degraded Auxiliary Building Water Intrusion Barrier

Self-Identified List (Grand Gulf)

	Q	Title
05000416/FIN-2012002-06	2012Q1	Licensee-Identified Violation
05000416/FIN-2012003-09	2012Q2	Licensee-Identified Violation
05000416/FIN-2012004-03	2012Q3	Licensee-Identified Violation
05000416/FIN-2012005-08	2012Q4	Licensee-Identified Violation

[Grand Gulf Findings full list]

05000416/FIN-2012005-02

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