05000251/FIN-2017004-02

Finding

Title

Failure to Identify and Correct a Deficient CCW Penetration Seal Configuration that Exacerbates External Piping Corrosion Conditions

Description

A NRC-identified NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, was identified for the licensees failure to promptly identify and correct an adverse condition to quality that led to continued corrosion and significant scaling and pitting of the Unit 4 component cooling water (CCW) 18-inch headers at the penetration seals from the CCW heat exchanger room to the 10-foot pipeway. This issue was entered into the licensees CAP as ARs 2217942, 2227877, 2211843, 2236687, and 2239632. Corrective actions included removing protective boots that were inappropriately installed and not in accordance with design drawings and work order instructions, and were collecting hypersaline water that wetted carbon steel piping.The performance deficiency was determined to be more than minor because it was associated with the design control attribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective of ensuring the reliability of systems that respond to initiating events to prevent undesirable consequences because corrosion and pipe wastage was ongoing and unmonitored for the Unit 4 CCW headers. In accordance with IMC 0609 Appendix A, The Significance Determination Process for Findings At-Power, the inspectors determined the finding to be of very low safety significance because it did not represent an actual loss of function of one or more non-technical specification trains of equipment designated as high safety-significant in accordance with the licensees maintenance rule program for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The finding had a cross-cutting aspect in the area of Problem Identification and Resolution, Identification, because the licensee failed to identify the adverse condition that allowed corrosion to continue unmonitored [P.1].

02
Site:	Turkey Point
Report	IR 05000251/2017004 Section 4OA2
Date counted	Dec 31, 2017 (2017Q4)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71152
Inspectors (proximate)	J Orr J Reyes A Butcavage P Capehart M Donithan W Loo J Panfel J Rivera T Stephen L Suggs
Violation of:	10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion XVI
CCA	P.1, Identification
INPO aspect	PI.1
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v • d • e

Finding - Turkey Point - IR 05000251/2017004

1(2)2(3)3(3)4(3)5(0)7(10)8(4)301(0)403(0)404(0)405(0)502(0)

IR 05000251/2017004: 1 2 3

Finding List (Turkey Point) @ 2017Q4

CCA Matrix: 2017Q4

	Q	CCA	Title
05000250/FIN-2017001-02	2017Q1	H.1	Failure of Vital Battery Chargers Due to Conductive Dust / Particulate Foreign Material Exclusion
05000250/FIN-2017008-01	2017Q1	H.9	Potential Failure of Fire Detection Capability on Credited Train of Equipment Following High Energy Arc Flash Event
05000250/FIN-2017008-03	2017Q1	H.1	Potential Failure to Implement Adequate Foreign Material Exclusion Control
05000250/FIN-2017008-02	2017Q1		Potential Failure to Complete an Adequate Risk Assessmen
05000250/FIN-2017008-04	2017Q1		Potential Inadequate Design Control of Current Limiting Reactor
05000250/FIN-2017001-01	2017Q1	H.1	Inadequate Operational Decision-Making Procedure Implementation Results in Feedwater Heater Water Hammer
05000250/FIN-2017002-01	2017Q2	P.5	Failure to Perform 100 Percent General Visual Examinations of Containment Moisture Barriers Associated with Containment Liner Leak Chase Test Connections
05000250/FIN-2017002-03	2017Q2	H.9	Failure to Implement Fire Detection
05000250/FIN-2017002-02	2017Q2	H.1	Inadequate Foreign Materials Exclusion Controls for Thermo-Lag Activities Renders Electrical Equipment Inoperable and Results in a High Energy Arc Flash
05000250/FIN-2017007-02	2017Q3		Failure to Perform Design Verification for Under Frequency Trip of the Main Generator Breakers
05000250/FIN-2017003-03	2017Q3	H.12	Inadequate Maintenance Rule (a)(4) Risk Assessment for the High Head Safety Injection Pumps
05000250/FIN-2017003-02	2017Q3	H.12	Inadequate Operator Fundamentals during Diesel Driven Fire Pump Surveillance Testing
05000250/FIN-2017007-09	2017Q3		Failure to Update the UFSAR with the Latest Information Developed
05000250/FIN-2017007-08	2017Q3		Failure to Correct a Non-Conforming Condition Impacting Containment
05000250/FIN-2017007-07	2017Q3	P.1	Failure to Identify ICW Pipe Corrosion
05000250/FIN-2017007-06	2017Q3		Failure to Verify the Adequacy of Design for the ECC and CCW Systems
05000250/FIN-2017007-05	2017Q3		Failure to Adequately Perform Discharge Testing on Battery 3B
05000250/FIN-2017007-04	2017Q3		Failure to Verify the Adequacy of Design for Component Protective Covers
05000250/FIN-2017007-03	2017Q3	H.9	Failure to Verify the Adequacy of CCW isolation from Supplemental Cooling System (SCS)
05000250/FIN-2017007-01	2017Q3		Inadequate Verification of Electrical Protective Device Selective Coordination
05000250/FIN-2017007-10	2017Q3		Potential failure of 125 Vdc Bus 3B Class 1E components
05000250/FIN-2017003-01	2017Q3	P.1	Failure to Identify and Correct CCW Pipe Corrosion
05000251/FIN-2017004-02	2017Q4	P.1	Failure to Identify and Correct a Deficient CCW Penetration Seal Configuration that Exacerbates External Piping Corrosion Conditions
05000251/FIN-2017004-03	2017Q4		Inadequate Installation of Outdoor Use Electrical Enclosures Results in Manual Reactor Trip
05000251/FIN-2017004-01	2017Q4	H.8	Failure to Perform an Adequate ASME BPVC Section XI Repair/Replacement Plan for a Code Class 1 and 2 Replacement

Self-Identified List (Turkey Point)

[Turkey Point Findings full list]

05000251/FIN-2017004-02

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