CNS-18-032, Refueling Outage 22 (C2R22) Inservice Inspection Report Summary Report

Refueling Outage 22 (C2R22) Inservice Inspection Report Summary Report

ML18198A116
Person / Time
Site:	Catawba
Issue date:	07/12/2018
From:	Simril T Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CNS-18-032
Download: ML18198A116 (6)

Text

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--t1f~DUKE Tom Simril Vice President

~JENERGY(i Catawba Nuclear Station Duke Energy CN01 VP I 4800 Concord Road York, SC 29745 o: 803.701.3340 f: 803.701.3221 tom.simril@duke-energy.com CNS-18-032 July 12, 2018 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001

Subject:

Duke Energy Carolinas, LLC (Duke Energy)

Catawba Nuclear Station, Unit 2 Docket Number 50-414 Catawba Unit 2 Refueling Outage 22 (C2R22) lnservice Inspection Report Summary Report In accordance with Section XI of the ASME Code, please find enclosed the subject 90-day Owner's Activity Report, Form OAR-1, which provide the results of Catawba's C2R22 lnservice Inspection.

There are no regulatory commitments contained in this letter or its enclosure.

If you have any questions concerning this, please call Dustin Yang at (803) 701-3084.

Sincerely, Tom Simril Vice President, Catawba Nuclear Station

Enclosure:

Owner's Activity Report for Refueling Outage C2R22 www.duke-energy.com

Document Control Desk Page 2 July 12, 2018 xc (with attachments):

C. Haney Region II Administrator U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Avenue NE, Suite 1200 Atlanta, GA 30303-1257 J. D. Austin Senior Resident Inspector U.S. Nuclear Regulatory Commission Catawba Nuclear Station M. Mahoney (addressee only)

Project Manager U.S. Nuclear Regulatory Commission 11555 Rockville Pike Mailstop 0-8H4A Rockville, MD 20852

CASE N-532-5 FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number Owner's Activity Report for Refueling Outage C2R22 Plant _______ C_a_ta_w_b_a_N_uc_lear Station, 4800 Concord Road~,Y_or_k~,_s_c__2_9_7_4_5_ _ _ _ _ __

Unit No. 2 Commercial service date 08/19/1986 Refueling outage no. C2R22 (if applicable) _---:....c.;_'-'-'--'-"-"---

Current inspection interval Fourth Inspection Interval (18_!1_Third lns~ction Interval (Containment ISi)

(1st, 2nd, 3rd, 4th, other)

Current inspection period First Inspection Period (ISi and Containment ISi)

(1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection plans ASME Section XI 2007 Edition through 2008 Addenda Date and revision of inspection plans See Attachment - Page 2 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as above The following Code Cases are permitted by the ISi and Pressure Test Plan:

4th Interval: N-513-3, N-532-5, N-586-1, N-600, N-613-1, N-639, N-643-2, N-648-1, N-651, N-705, N-706-1, N-712, N-716-1, N-722-1, N-729-4, N-731, Code Cases used for inspection N-735, N-747, N-751, N-765, N-770-2, N-771, N-776, N-786-1, N-798, and evaluation: - - ~ - -N-805, N-800, ~--~ N-823,

-~- - - - -&-N-845 N-825, ------------*****-***------

(if applicable)

CERTIFICATE OF CONFORMANCE l certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of C2R22 conform to the requirements of Section XI.

(refueling outage number)

Signed Austin Keller, ISi Program Owner Date G, / 13 / \ f!,

I 1 CERTIFICATE OF ll"ISERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of South Carolina and employed by Hartford Steam Boiler Inspection and Insurance Company of Connecticut have inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

---~-~-~~---l)~c,s~r_,p,J~M---'<11...,_,//.'""",_I-_ _ _ _ _ Commissions __,/.,....,'.5i"--'-7-=-'/.-=~--rZ='4_..__/l!.--"""-A-'='fI=----

1nspector's Signature National Board, State, Province, and Endorsements Date  !, .J .a.§ j 201 g 1 of 4

CASE N-532-5 ATTACHMENT CATAWBA UNIT 2 END OF CYCLE 22 INSERVICE INSPECTION REPORT Date and Revision of lnservice Inspection Plans:

I. Fourth Interval lnservice Inspection Plans

1. The following documents comprise the Catawba Nuclear Station 4th Interval lnservice Inspection Plan for Unit 2 (Class 1, 2, and 3 Components):

a. Catawba Nuclear Station Unit 1 and Unit 2 - Fourth Interval lnservice Inspection Plan, Document #CISl-1462.10-0040-ISI PLAN, Rev. 3, dated 06/13/2018.

b. Fourth Interval lnservice Inspection Outage Schedule Catawba Nuclear Station Unit 2, Document #CISl-1462.10-0040-UNIT 2, Rev. 0, dated 08/13/2015 including the following addenda:

i. CISl-1462.10-0040-4CNS2-001 through CISl-1462.10-0040-4CNS2-006

2. The following document comprises the Catawba Nuclear Station 4th Interval lnservice Inspection Pressure Test Plan for Unit 2:

a. Catawba Nuclear Station Units 1 and 2 Fourth Inspection Interval lnservice Inspection Pressure Test Plan, Document #CISl-1462.20.0040-PTPlan, Rev. 1, dated 07/13/2017.

II. Containment lnservice Inspection Plan

1. The following document comprises the Catawba Nuclear Station 3rd Interval Containment lnservice Inspection Plan for Unit 2 (Class MC):

a. Catawba Nuclear Station Units 1 and 2 - Third Interval Containment lnservice Inspection Plan, Document #CN-ISIC3-1042-0001, Rev. 6, dated 05/08/2018.

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CASE N-532-5 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Description Evaluation Description Item Number During C2R22, thermal sleeve upper flange wear measurement data collected by Framatome via WO# 20170073. Of the 57 thermal sleeve wear measurements, 1 (penetration #18) initially exceeded separation criteria. However, an Augmented Inspection to address wear phenomena evaluation was performed by Westinghouse in associated with RVCH thermal sleeves on Westinghouse AUG/ G20.1 letter LTR-RIDA-18-100 that relaxed the yield Units per Technical Bulletin TB-07-2, Rev. 3 and separation criteria provided in industry guidance document PWROG-16003-P Rev. 1 by reducing industry-enveloping conservatisms based upon site-specific details such as measurement accuracy and site-specific wear rates. Reference NCR #02193730.

VT-2 examination revealed boric acid residue on the 2C Steam Generator Hot and Cold Leg B-P / B15.10 ISi Class A Bolted Connection - IWA-5241(f) Primary Manway Covers. Engineering Evaluation found to be acceptable. Reference NCR

1. 02192806.

VT-2 examination revealed boric acid residue on seal table mechanical fittings, 2C Reactor Coolant Pump Main Flange Bolting, and lncore B-P / B15.10 ISi Pressure Test Zone 2NC-001 L-A Instrumentation Tubing. Engineering Evaluation found to be acceptable. Reference NCRs

1. 02197471 and #02197466.

VT-2 examination revealed boric acid residue on C-H/C7.10 ISi Pressure Test Zone 2FW-001 L-B valve 2NS-20A. Engineering Evaluation found to be acceptable. Reference NCR #02140492.

VT-2 examination revealed boric acid residue on C-H / C7.10 ISi Pressure Test Zone 2ND-001 L-B valve 2ND-3. Engineering Evaluation found to be acceptable. Reference NCR #02192166.

VT-2 examination revealed boric acid residue on NI piping upstream of valve 2Nl-18. Engineering C-H / C7.10 ISi Pressure Test Zone 2Nl-010L-B Evaluation found to be acceptable. Reference NCR #02195381.

VT-2 examination revealed boric acid residue C-H / C7.10 ISi Pressure Test Zone 2NV-005L-B valve 2NV-333. Engineering Evaluation found to be acceptable. Reference NCR #02187670.

VT-2 examination revealed boric acid residue on valve 2KF-6 and flow element 2KF-FE-5100.

D-B / 02.10 ISi Pressure Test Zone 2KF-001 L-C Engineering Evaluation found to be acceptable.

Reference NCR #02186336.

VT-2 examination revealed boric acid residue on D-B / 02.10 ISi Pressure Test Zone 2KF-002L-C valve 2KF-20. Engineering Evaluation found to be acceptable. Reference NCR #02175038.

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CASE N-532-5 TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Repair/ Replacement Code Class

\ Item Description I Description of Work I Date Completed I Plan Number None 4 of 4