ML15175A190

Owner'S Activity Report

ML15175A190
Person / Time
Site:	North Anna
Issue date:	06/17/2015
From:	Hilbert L Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
15-295
Download: ML15175A190 (7)

Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 June 17, 2015 U.S. Nuclear Regulatory Commission Serial No.: 15-295 Attention: Document Control Desk NAPS/JHL: RO Washington, D.C. 20555 Docket No.: 50-338 License No.: NPF-4 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)

NORTH ANNA POWER STATION UNIT 1 OWNER'S ACTIVITY REPORT In accordance with the requirements of American Society of Mechanical Engineers (ASME) Code Case N-532-4, enclosed is the Owner's Activity Report (Form OAR-I), for refueling outage N1R24. This report is for the second refueling outage of the second period of the fourth inspection interval.

Should you have any questions regarding this submittal, please contact Mr. Page A.

Kemp at (540) 894-2295.

Very truly yours, Lisa Hilbert Director - Nuclear Station Safety and Licensing Commitments made in this letter: None Attachment

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cc: U.S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Avenue, NE, Suite 1200 Atlanta, Georgia 30303-1257 NRC Senior Resident Inspector North Anna Power Station Mr. J. E. Reasor, Jr.

Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd.

Suite 300 Glen Allen, Virginia 23060 Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 0-8 G9A Rockville, MD 20852-2738 Mr. M. M. Grace Authorized Nuclear Inservice Inspector North Anna Power Station

Attachment Owner's Activity Report for North Anna Unit 1 Refueling Outage N1R24 - Second Period of the Fourth ISI Interval North Anna Power Station Virginia Electric and Power Company

Form OAR-I, Owner's Activity Report

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oDominion- ERAAIS10 ATTACMN 1 PaeIo Report Number: N1 R24 (Unit 1, 4 th Interval, 2 nd Period)

Plant: North Anna Power Station Unit No. 1 Commercial service date: 6/6/1978 Refueling outage no. N1R24 (if applicable)

Current inspection interval: 4"' (May 1, 2009 - April 30, 2019)

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

Current inspection period: 2 nd (May 1, 2012 - April 30, 2016)

( 11st, 2 ndl, 3 rd' 4 th)

Edition and Addenda of Section Xl applicable to the inspection plans: 2004 Edition with No Addenda Date and revision of inspection plans: Revision 3. February 2012 Edition and Addenda of Section X1 applicable to repair/replacement activities, if different than the inspection plans N/A Code Cases used: N-432-1, N-460, N-504-4, N-526, N-532-4, N-552, N-566-2, N-583, N-586-1, N-597-2, N-613-1, N-624, N-638-4, N-641, N-658, N-661-1, N-663, N-683, N-686-1, N-696, N-706-1, N-722-1, N-729-1, N-753, N-770-1 (if applicable)

CERTIFICATE OF CONFORMANCE I 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 N1R24 conform to the requirements of Section XI.

(refueling outage number)

Date CERTIFICATE OF INSERVICE 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 Virginia and employed by HSB GS of Hartford, CT 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 XA.

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 his inspection.

__Commissions NB 9531-A, N, I, C, IS / VA 424-R Inspector's Signature National Board, State, Province and Endorsements Date OZ-v /2 Oge Form No. 729595 (Aug 2009)

Form OAR-I, Owner's Activity Report ae2o WfDominion- IE-AA ISI-0ATCMN Table 1 Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Item Description Evaluation Description Category and Item Number Spring Hanger 2-SI-63 / SH-5 Evaluate per CR574053 F-A/ F1.1OC Cold load settings and scale -

Summary # N1 .F1.10.027 determined acceptable Spring Support, 2-RC-17 / Evaluate per CR574525 F-A / Fl .1 OC SH-3 Load scale out of range -

Summary # N1 .F1.10.233 determined acceptable Elbow to Pipe Weld, 2-RC-59, Craze cracking possible Eb tCR568193 / OD 609 - Crack R-A / R1.11 growth evaluated acceptable until RFO N1R24. Upon replacement, no cracking Summary # NI.R1 .11.359 found.

4 4 Form No. 729595 (Aug 2009)

Form OAR-I, Owner's Activity Report

1. Pag 3 f ip Dominion- F TAI A 0 ATTACMN Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Item Description Description of Work C Datepte Completed Repair/Replacement planN Plan Number mer 1-SW-PP-18.00-WS- Replace piping due to PIPE-D95-151- replall leak 08/04/2014 2014-052 Q3 through-wall leak Install shim to restore 1-SW-R-D95.6032 support to proper design 12/03/2014 2014-053 configuration 1-RC-PP-2.00-RC-PIPE- Replace pipe and elbow 04/20/2015 2014-150 56-1502-Ql due to through-wall leak 1-RC-PP-2.00-RC-PIPE- Replace pipe and elbow 04/06/2015 2014-153 59-1502-Ql due to craze cracking 1-SW-PP-2.00-C84-153A- Replace piping due to MIC 04/08/2015 2015-030 Q3 leak 1-SW-PP-2.00-C78-153A- Replace piping due to MIC 04/06/2015 2015-031 Q3 leak 04/17/2015 2015-050 1-RH-HSS-100D suspectedsnubber Replace leak due to Replace due to 04/17/2015 2015-051 1-FW-HSS-212 low fluid snubber 1-SI-HSS-101D Replace empty fluidsnubber due to reservoir 04/17/2015 2015-052 1-RC-HSS-835 Replace snubber due to 04/17/2015 2015-053 low fluid Form No. 729595 (Aug 2009)

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Form OAR-I Owe'aciiyRpr

ý40Dominion- fE- AAt- 00 ATTCMN I P age4o FORM N-711-A Abstract of Welds Satisfying Alternative Examination Coverage of Case N-711 Examination Cxamnateoy Weld Percent Nmer Weld Description Cerae Description of Limitation Category Number Coverage Single-sided exam due to C-F-1/C5.11 Tee-to-Flange, Quench 50% flange configuration (R-A/LSS) Spray (Preservice Inspection -

PSI) 7 Elbow to Pipe, Low Head Single-sided exam - DS Safety Injection Loop 1 745% access limited due to lug and clamp adjacent to weld.

Form No. 729595 (Aug 2009)