ML19023A024
| ML19023A024 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/11/2019 |
| From: | Armstrong L Dominion Energy Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 19-002 | |
| Download: ML19023A024 (7) | |
Text
Dominion Energy Nuclear Connecticut, Inc.
Rt 156, Rope Ferry Road, Waterford, CT 06385 Dominion Energy.com JAN.11 2019 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 DOMINION ENERGY NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 2
~
Dominion p
Energy Serial No.
NSS&L/MLC Docket No.
License No.19-002 RO 50-336 DPR-65 INSERVICE INSPECTION PROGRAM - OWNER'S ACTIVITY REPORT, REFUELING OUTAGE 25 Dominion Energy Nuclear Connecticut, Inc. hereby submits the American Society of Mechanical Engineers (ASME),Section XI, Form OAR-1, Owner's Activity Report for the period from May 6, 2017 through Refueling Outage 25, completed on November 2, 2018, 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 Jeff Langan at (860) 444-5544.
Sincerely,
.~-~~
Lori J. Armstrong Director, Nuclear Station Safety and Licensing
Enclosure:
Millstone Power Station Unit 2, Owner's Activity Report - Refueling Outage 25 Commitments made in this letter:
None
cc:
U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd Suite 100 King of Prussia, PA 19406-2713 R. V. Guzman NRG Senior Project Manager Serial No.19-002 Owner's Activity Report, 2R25 Docket No. 50-336 Page 2 of 2 U.S. Nuclear Regulatory Commission, Mail Stop 08 C2 One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 NRG Senior Resident Inspector Millstone Power Station
Serial No..19-002 Docket No.
50-336 ENCLOSURE INSERVICE INSPECTION PROGRAM - OWNER'S ACTIVITY REPORT REFUELING OUTAGE 25 MILLSTONE POWER STATION UNIT 2 DOMINION ENERGY NUCLEAR CONNECTICUT, INC,
MILLSTONE POWER STATION
~
UNIT NO. 2 OWNER'S ACTIVITY REPORT REFUELING OUTAGE 25 Revision 0 Contents:
OAR-1 Report Number: MP2-2R25 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:
J!,z:..b.~ ll~
ISi ProgramOwner Date:,~/,o/,'3' r,
ReviewedBy: ~~~~'ToAdA.~e: 1-;;,./11/l'il Inde ndent Review Reviewed By:
Form OAR-1 Owner's Activity Report, ER-AA-ISl-100 Page 1 of 3 Report Number:, __..:..:M=P-=2"-'-2=R'-==-25~-----------------------------
Plant -----~M=i=lls=to=n~e~N=u=cl=e=a~r P~o=w'"'-e=r~S=t=at=io=n=*-...-aR~o=p=e~F~e=r"'"'ry~R~o=a=d=,...,W~a=t=e~rfi=or~d~, =C=o~nn=e=c=ti=c=ut~06=3~8~5~---
Unit No.. _~2~---------
(if applicable)
Commercial service date 12/26/1975 Refueling outage no. --=2=5 __ _
Current inspection interval _4..:..:t...,h_~---~-----------------------
(15, 2", 3', 4, other)
Current inspection period _...,3'"'-r=d-~-~~~------------------~---
(18, 2", 3' )
Edition and Addenda of Section XI applicable to the inspection plans 2004 Edition. No Addenda Date and revision of inspection plans _____
1.:...::0""'/0:,:..4.:.c/..,_17:......:...;R,,,e..:..v*=1s'""io""'nc..:3::.i..,...:ac,.,_h=a"-'n"""ge=5...,-0=0'-'1 _________ _
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-513-3, N-532-4, N-566-2, N-722-1, N-729-4, N-731, N-770-2 (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 2R25 conform to the requirements of Section XI.
(refueling outage number)
Date 12/10/2018 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 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.
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~al Board, State,Province'anci~ndorsefnents D~~L?1 ~{ff
Form OAR.:.1 Owner's Activity Report, ER-AA-ISl-100 Page 2 of 3 Table 1 Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Item Description Evaluation Description Category and Item Number F-A/ F1-10B Pipe Support 410048 Bolting thread engagement evaluated by Engineering as acceptable for continued service as documented in UIR MP2-18-002, CR1107474 F-A/ F1.40F Steam Generator Support Bolting assembly evaluated by SG-1-CC-3 Engineering as acceptable for continued service as documented in UIR MP2-18-003, CR1107941 F-A/ F1.40F Steam Generator Support Bolting assembly evaluated by SG-1-CC-7 Engineering as acceptable for continued service as documented in UIR MP2-18-004, CR1107943 F-A/ F1.20C Pipe Support 412012 Spring can load setting evaluated by Engineering as acceptable for continued service as documented in UIR MP2-18-005, CR1108606 CH/C?.10 Safety Injection System Through wall leakage identified on piping on line 6"-HCD(C)-3 safety injection header piping documented in CR1078830. This condition was evaluated for structural integrity in accordance with ASME Code Case N-513-3 and found to be acceptable for continued service, with performance of periodic NDE monitoring, until repair could be completed no later than the next refuel outage (2R25). Repair has now been completed during 2R25 under Work Order 53103120915.
Forrri OAR-1 Owner's Activity Report, ER-AA-ISl-100 Page 3 of 3 Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Code Class Item Description Description of Work Date Repair/Replacement Comoleted Plan Number Boric Acid Pump Replace pump stuffing 7/21/2017 2
P19B box cover due to through 53103054077 wall leakaqe Weld repair on Service 3
Piping spool piece Water spool piece SK-09/01/2018 53203227119 3527 (Line 24"-JGD-1)
Weld repair on Service 3
Piping spool piece Water piping spool piece 10/08/2018 53203229743 SK-892 (Line 24"-JGD-3)
Replace section of Safety 2
Piping spool piece Injection System piping 10/14/2018 53103120915 Line 6"-HCD(C)-3 due to.
throuqh wall leakaqe