ML21336A625
| ML21336A625 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 12/01/2021 |
| From: | Armstrong L Dominion Energy Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 21-390 MP2-2R27 | |
| Download: ML21336A625 (7) | |
Text
Dominion Energy Nuclear Connecticut, Inc.
Millstone Power Station 314 Rope Ferry Road, Waterford, CT 06385 Dominion Energy.com U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 DOMINION ENERGY NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 2 A Dominion t: a,, Energy _
Serial No.
NSS&L/TFO Docket No.
License No.21-390 RO 50-336 DPR-65 DEC O 1 2021 INSERVICE INSPECTION PROGRAM - OWNER'S ACTIVITY REPORT, REFUELING OUTAGE 27 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 June 6, 2020 through Refueling Outage 27, completed on November 7, 2021, for Millstone Power Station Unit 2. The enclosure is in accordance with the requirements of ASME Code Case N-532-5.
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 27 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.21-390 Owner's Activity Report, 2R27 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
ENCLOSURE MILLSTONE POWER STATION UNIT 2 OWNER'S ACTIVITY REPORT REFUELING OUTAGE 27 Serial No.21-390 Docket No.
50-336 MILLSTONE POWER STATION UNIT 2 DOMINION ENERGY NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNITNO.2 OWNER'S ACTIVITY REPORT REFUELING OUTAGE 27 Revision 0 Contents:
OAR-1 Report Number: MP2-2R27 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:
Date:
1, /tc,/p.o fl I I
1 Reviewed By:
Form OAR-1 Owner's Activity Report, ER-AA-ISI-100 Page 1 of 3 Report Number: __
=M~P=2-"*2=R=2=7 ___________________________ _
Plant _____
_,_M,.,,i=lls"""t""on'-"e"-'-'N=u,,,cl"""e~ar'-'P-'o""'w"-'e=r_,S"'t"'"at,,,io=n-'-'-.__,_R__,_,o""p=e'--'F_,e"'""r,_,ry_,R-"o,,.,a""d,_._.__,_W.,_,a,,.,t""erf'-"o=r=d_.__. C=on..,,n""e'-"ce>!ti""cu,,..,t~0""'6"""3'"""8'""5'-----
Unit No.. _~2~-----
(if applicable)
Commercial service date 12/26/1975 Refueling outage no. ~2=7 __ _
Current inspection interval _5~t~h ___________________________ _
(1st, 2nd, 3rd, 4th, other)
Current inspection period _ _,1=s-'-t ___________________________ _
(1st, 2nd, 3rd)
Edition and Addenda of Section XI applicable to the inspection plans 2013 Edition. No Addenda Date and revision of inspection plans ----~M-'-'=ay~12=*~2~0=2~1~/~R=e~v=is=io=n~1~-------------
Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans N/A Code Cases used:
N-532-5 N-716-1 N-729-6 N-770-5 N-885 (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 2R27 conform to the requirements of Section XI.
(refueling outage number)
Signed ---+~,,__'"'.._;__<Z]..:....::=---=o~~JJ:::.::....._6
-+-+'_,,-=-_,.,,IS'-!.I..c.P.!..!ro=ra,!.!m~O,'..!w!.!.n,.,,e:!..r ____ _
Date 11/16/2021 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.
Form OAR-1 Owner's Activity Report, ER-AA-ISI-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 / F1.20G Shutdown Cooling System Engineering to evaluate bolting thread Support 502019 engagement (CR 1182642)-
Acceptable.
F-A/ F1.20G Shutdown Cooling System Engineering to evaluate gap between Support 402077 support base plate and wall (CR1182693) -Acceptable.
F-A / F1.30G Service Water System Engineering to evaluate support Support 527017 clearances (CR 1182952) -
Acceptable.
F-A/ F1.10A Safety Injection System Engineering to evaluate gap between Support 310019 support base plate and wall (CR1183029) - Acceptable.
F-A / F1.20G Shutdown Cooling System Engineering to evaluate gap between Support 427110 support base plate and wall (CR1183018)-Acceptable.
EA/E1.30 Containment Surfaces Engineering to evaluate Containment Moisture Barrier of Floor Liner Plate Leak Chase Test Containment Liner Channels (CR1182891)-Acceptable.
Eleven repairs were competed in 2R27. Tracking assignments have been initiated to perform additional repairs (CA8654619) and a Code required reinspection (CA8654505) in 2R28.
Form OAR-1 Owner's Activity Report, ER-AA-ISI-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 Completed Plan Number None
-