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Inservice Inspection Program, Owner'S Activity Report, Refueling Outage 23
	ML16033A471
Person / Time
Site:	Millstone
Issue date:	01/22/2016
From:	Stanley B; Dominion Nuclear Connecticut
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	16-005
	Download: ML16033A471 (8)
	v • d • e

~Dominion Dominion Nuclear Connecticut, Inc.Rope Ferry Rd., Waterford, CT 06385 Mailing Address: P.O. Box 128 Waterford, CT 06385 dora. corn JAN 2 2 2015 U.S. Nuclear Regulatory Commission Attention:

Document Control Desk Washington, DC 20555 Serial No.NSS&L/MLC Docket No.License No.16-005 R0 50-336 DPR-65 DOMINION NUCLEAR CONNECTICUT.

INC.MILLSTONE POWER STATION UNIT 2 INSERVICE INSPECTION PROGRAM -OWNER'S ACTIVITY REPORT, REFUELING OUTAGE 23 Dominion Nuclear Connecticut, Inc. hereby submits the American Society of Mechanical Engineers (AS ME),Section XI, Form OAR-I, Owner's Activity Report for the period from May 19, 2014 through Refueling Outage 23, completed on November 7, 2015, for Millstone Power Station Unit 2. The enclosure is in accordance with the requirements of ASME Code Case N-532-4.If you have any questions or require additional information, please contact Mr. Thomas Cleary at (860) 444-4377.Sincerely, B. L. Stanley Director, Nuclear Station Safety and Licensing

Enclosure:

1. Millstone Power Station Unit 2, Owner's Activity Report -Refueling Outage 23 Commitments made in this letter: None.

Serial No.16-005 Owner's Activity Report, 2R23 Docket No. 50-336 Page 2 of 2 cc: U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd Suite 100 King of Prussia, PA 19406-2713 R. V. Guzman NRC Senior Project Manager U.S. Nuclear Regulatory Commission, Mail Stop 08 C2 One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station Serial No.Docket No.16-005 50-336 ENCLOSURE1I INSERVICE INSPECTION PROGRAM -OWNER'S ACTIVITY REPORT REFUELING OUTAGE 23 MILLSTONE POWER STATION UNIT 2 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT NO. 2 OWNER'S ACTIVITY REPORT REFUELING OUTAGE 23 Revision 0 Contents: OAR-i Renort Number: MP2-2R23 Table 1: Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service.Table 2: Abstract of Repairs/Replacement Activities Required for Continued Service Prepared By: Reviewed By: Reviewed By:/ IS Owner Independent Review Date: e' a 6, Date: eo,2, Authorized Nuec1ir Inserviee .Inspector n~ni Form OAR-I Owner's Activity Report A 1 !-5[I k [ S1';i Report Number:_MP2-2R23 Plant Millstone Nuclear Power Station. Rope Ferry Road, Waterford, Connecticut 06385 Unit No. 2 (if applicable)

Current inspection interval 4th Current inspection period 2nd Commercial service date 12126/1975 Refueling outage no. 23 (1 st, 2 nd, 3rd, 4 tf, other)(1st, 2nd, 3rd)Edition and Addenda of Section Xl applicable to the inspection plans 2004 Edition. No Addenda Date and revision of inspection plans 06/15/i5 Revision 3. Chancqe 3-008 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans N/A Code Cases used: N-460, N-532-4, N-566-2. N-722-1. 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 Xl; and (c) the repair/replacement activities and evaluations supporting the completion of 2R23 conform to the requirements of Section XI.(refueling outage number)Signed k~

SI Proaram O~wner Date 01/05/2016 SOwner or ..-......-

.....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 Connecticut and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford.

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.

A4,, 6"r/R/- ,, z-- c'_:, Inspect s' e "National Bo'ard, State, Province and Endorsements Date 6O/.//. £Z-O/,,

m~nksn~Form OAR-I Owner's Activity Report A --II .6~ S Table I Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Item Description Evaluation Description Category and Item Number F-A / F1 .30G Pipe Support 405633 Anchor bolt thread engagement evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-001.

F-A/ F1.20C Pipe Support 401021 Support spring load setting evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-002.F-A / Fl1.20B Pipe Support 401022 Support spring load setting evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-003.F-A / FlI.30A Pipe Support 405875 Corrosion evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-004.

F-A/ F F.20A Pipe Support 402116 Skewed base plate bolting evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-005.F-A / FI .40F Pipe Support Grout and coating degradation at support CAR-X-35A-1-S-B base evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-006.

F-A/ F1.20C Pipe Support 312009 Support spring load selling evaluated by Engineering as acceptable for continued service as documented in UIR MP2-15-007.F-A/ Fl.20A Pipe Support 310021 Support strut barrel thread engagement evaluated by Engineering as acceptable for continued service. Support adjusted to restore to original design condition as documented in UIR MP2-15-008.

C-H / C7.10 Valve 2-SI-470 Evidence of leakage at bolted connection evaluated in accordance with ASME Code Case N-566-2 as acceptable for continued service as documented in ETE MP-2015-1103 C-H / C7.10 Valve 2-SI-411 Evidence of leakage at bolted connection evaluated in accordance with ASME Code Case N-566-2 as acceptable for continued service as documented in ETE MP-201 5-1103 Form OAR-I Owner's Activity Report Table 1 Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Item Description Evaluation Description Category and Item Number C-H / C7.10 Pump 2-SI-P41B Suction Evidence of leakage at bolted connection Flange evaluated in accordance with ASME Code Case N-566-2 as acceptable for continued service as documented in ETE MP-2015-1 103 C-H I C7.10 .Valve 2-SI-460 Evidence of leakage at bolted connection evaluated in accordance with ASME Code Case N-566-2 as acceptable for continued service as documented in ETE MP-2015-1153

.......Form OAR-I Owner's Activity Report Table 2 Abstract of RepairlReplacement Activities Required for Continued Service Code Class Item Description Description of Work Date RepairlReplacement Completed Plan Number Replace section of Feedwater piping on line 2 Pipe ~~~~~ 18"-EBB-6.

Note: This 0/821 30721 Pipe Spool activity was performed 0/821 30721 during previous outage 2R22. Ref. CR1010609.

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Replace section of 3Pipe Spool Service Water piping on 01/25/2015 53102808407

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~~~line 3"-HUD-32____________

Replace pressure 3Valve retaining parts of Service 08/05/2015 53102864670

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~~Water valve 2-SW-i178B

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Replace section of 3Pipe Spool Service Water piping on 08/07/2015 53102865581

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line 2-1/2"-HUD-1 12 Replace section of 3Pipe Spool Service Water piping on 10/17/2015 53102867864

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line 2-1/2"-HUD-1 12 Replace section of 2Pipe Spool Feedwater piping on line 10/29/2015 53102801958 18"-EBD-8 at valve 2-FW-5B Replace section of 2Pipe Spool Feedwater piping on line 10/30/20 15 53102885893 1 8"-EBB-6 at valve________2-FW-5A Replace section of 2 Pipe Spool ~~Feedwater piping on line 1/021 30842 Pipe spool 18"-EBB-6 inside 1/021 30842 containment