RA-23-0150, End of Cycle 28 (M2R28) Inservice Inspection Summary Report

End of Cycle 28 (M2R28) Inservice Inspection Summary Report

ML23208A058
Person / Time
Site:	Mcguire
Issue date:	07/27/2023
From:	Pigott E Duke Energy Carolinas
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
RA-23-0150
Download: ML23208A058 (1)

Text

('-> DUKE Edward R. Pigott Site Vice President McGuire Nuclear Station ENERGY Duke Energy MG01VP I 12700 Hagers Ferry Road Huntersville. NC 28078 o: 980.875.4805 Edward. Pigott@duke-energy.com Serial: RA-23-0150 10 CFR 50.55a July 27, 2023 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 MCGUIRE NUCLEAR STATION, UNIT NO.2 DOCKET NO. 50-370 / RENEWED LICENSE NUMBER NPF-17

SUBJECT:

McGuire Nuclear Station Unit 2, End of Cycle 28 {M2R28) lnservice Inspection Summary Report Pursuant to the reporting requirements of American Society of Mechanical Engineers (ASME)

Section XI, as amended by ASME Code Case N-532-5, Duke Energy Carolinas, LLC (Duke Energy) hereby submits the lnservice Inspection Summary Report for the McGuire Unit 2 outage M2R28.

This submittal contains no regulatory commitments.

Should you have any questions concerning this letter, or require additional information, please contact Ryan Treadway - Director, Fleet Licensing, at (980) 373-5873.

Edward R. Pigott Site Vice President McGuire Nuclear Station

Enclosure:

1. lnservice Inspection Summary Report Unit 2 McGuire Spring 2023 Refueling Outage M2R28

U.S. Nuclear Regulatory Commission Page 2 Serial: RA-23-0150 cc: (with enclosure)

J. Klos, NRC Project Manager, NRR L. Dudes, NRC Regional Administrator, Region II C. Safouri, NRC Senior Resident Inspector

U.S. Nuclear Regulatory Commission Serial: RA-23-0150 RA-23-0150 Enclosure 1 Inservice Inspection Summary Report Unit 2 McGuire Spring 2023 Refueling Outage M2R28 (7 pages including this cover)

DUKE ENERGY INSERVICE INSPECTION

SUMMARY

REPORT Location: +DJHUV)HUU\5RDG

+XQWHUVYLOOH1RUWK&DUROLQD

NRC Docket No.

Commercial Service Date: 0DUFK

Owner: Duke Energy 526 South Church St.

Charlotte, NC 28201-1006 Revision 0 KASull1 Digitally signed by KASull1 (524967)

Kaitlyn Sullivan Originated By:

(524967) Date: 2023.07.12 09:11:06 -04'00' Date (PRINT NAME/SIGNATURE)

Digitally signed by E50268 (342024)

Checked By: Angela Staller Date: 2023.07.12 09:26:40

-04'00' Date (PRINT NAME/SIGNATURE)

Digitally signed by MAP9681 MAP9681 (102140)

Approved By: Mark Pyne (102140) Date: 2023.07.20 09:55:16

-04'00' Date (PRINT NAME/SIGNATURE)

FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number RA-23-0150 Plant McGuire Nuclear Station, 12700 Hagers Ferry Rd, Huntersville, NC 28078-9340 Unit No. 2 Commercial service date 3/01/1984 Refueling outage no. M2R28 (if applicable)

Current inspection interval Inservice Inspection: 4th Interval, Containment: 3rd Interval (1st, 2nd, 3rd, 4th, other)

Current inspection period Inservice Inspection: 3rd Interval, Containment: 3rd Interval (1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the 2007 edition with 2008 addenda, 2017 edition (see inspection plans attachment), and 2019 edition (see attachment)

Date and revision of inspection plans See Attachment 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 Plans: N-513-3, N-513-4, N-513-5, N-526, N-532-5, N-586-1, N-600, N-613-1, N-613-2, N-639, N-643-2, N-648-1, N-648-2, N-651, N-663, N-705, N-705-1, N-706-1, N-711-1, N-712, N-716, N-716-1, N-716-2, N-722-1, N-729-6, N-731, N-735, N-747, N-751, N-765, N-768, N-770-5, N-771, N-775, N-776, N-778, N-786-1, N-786-Code Cases used for inspection 3, N-798, N-800, N-805, N-809, N-823-1, N-825, N-831-1, N-843, N-845, N-and evaluation: 845-1, N-854, N-858, N-864, N-865, N-874, N-882, N-885, N-892 (if applicable, include cases modified by Case N-532 and later revisions)

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 M2R28 conform to the requirements of Section XI.

(refueling outage number)

Digitally signed by KASull1 (524967)

Signed Date: 2023.07.12 10:08:49 -04'00' Date Owner or Owners Designee, Title 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 North Carolina and employed by Bureau Veritas Inspection and Insurance Company of Lynn, MA have inspected the items described in this Owners 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. Digitally signed by JFSwan (245816)

Jerome Swan $1,,6%XUHDX9HULWDV

,QVSHFWLRQDQG,QVXUDQFH Date: 2023.07.18 12:44:19

-04'00' Commissions I, N, NS, NSI, R Inspectors Signature National Board, State, Province, and Endorsements

ATTACHMENT McGuire Unit 2 End of Cycle 28 Inservice Inspection Report The McGuire Nuclear Station Unit 2 Fourth Ten Year Inservice Inspection (ISI) Plan complies with 10CFR50.55a(g), which implements, by reference, the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, 2007 Edition with 2008 Addenda.

Per RIS 2004-12, Letter RA-20-0262, NRC Accession Number ML20260H325 and approval NRC Accession Number ML20300A206, the NRC staff concluded that the use of subparagraph IWA-4540(b) of the 2017 Edition of the ASME B&PV Code,Section XI, is acceptable for McGuire Unit 2.

Per RIS 2004-16, Letter RA-20-0263, NRC Accession Number ML20260H326 and approval NRC Accession Number ML21113A013, the NRC staff concluded that the use of subparagraph IWA-4340 of the 2017 Edition of the ASME B&PV Code,Section XI, is acceptable for McGuire Unit 2.

Per RIS 2004-12, Letter RA-20-0191, NRC Accession Number ML20265A028 and approval NRC Accession Number ML21029A335, the NRC staff concluded that the use of paragraphs IWA-5120, IWA-5213, IWA-5241, IWA-5242, and IWA-5250 of the 2017 Edition of the ASME B&PV Code,Section XI, is acceptable for McGuire Unit 2.

Per RIS 2004-12, Letter RA-23-0001, NRC Accession Number ML20265A028 and approval NRC Accession Number ML21029A335, the NRC staff concluded that the use of paragraph IWA-6230 of the 2019 Edition of the ASME B&PV Code,Section XI, is acceptable for McGuire Unit 2.

This summary report is being submitted pursuant to the reporting requirements of ASME Section XI, IWA-6000 as amended by ASME Code Case N-532-5, Repair/Replacement Activity Documentation Requirements and Inservice Inspection Summary Report Preparation and Submission Section XI, Division 1.

Contained within this summary report are the form OAR-1 (Owners Activity Report) and Tables 1 and 2 of Code Case N-532-5 for McGuire Nuclear Station during cycle 28 and Refueling Outage 28 (M2R28).

M2R28 is the second outage of the third ISI period in the fourth inspection interval. M2R28 is the second outage of the third Containment period in the third inspection interval. This report includes all Repair/Replacement activities from October 12th, 2021, through April 4th, 2023, cycle 28.

Date and Revision of Inservice Inspection Plans:

Fourth Interval Inservice Inspection Plans The following document comprises the McGuire Nuclear Station Fourth Interval Inservice Inspection Plan for Unit 2 (Class 1, 2, and 3 Components):

Fourth Interval Inservice Inspection Plan - McGuire Nuclear Station Units 1 and Unit 2, Document MISI-1462.10-0040-ISIPLAN, Rev 3, dated 06/23/2022.

Fourth Ten-Year Interval Inservice Inspection Schedule McGuire Nuclear Station Unit 2, Document MISI-1462,10-0040-U2 Schedule, Rev. 4, dated 07/06/2022.

The following document comprises the McGuire Nuclear Station Fourth Interval Inservice Inspection Pressure Test Plan for Unit 2:

McGuire Nuclear Station Fourth Inspection Interval Inservice Inspection Pressure Test Plan, Document MISI-1462.20-0040-PTPLAN, Rev 6, dated 02/15/2022.

Containment Inservice Inspection Plan The following document comprises the McGuire Nuclear Station Third Interval Containment Inservice Inspection Plan for Unit 2 (Class MC):

McGuire Nuclear Station - Third Interval Containment Inservice Inspection Plan - Containment

- Units 1 & 2, Document MC-ISIC3-1042-0001, Rev. 10, dated 09/06/2022.

Augmented ISI Plan The following document comprises the McGuire Nuclear Station Fourth Interval Augmented Inservice Inspection Plan and Schedule for Unit 2:

McGuire Nuclear Station - Fourth Interval Augmented Inservice Inspection Plan and Schedule, Document MISI-1462.10-0040AUGISI-U1&U2, Rev. 6, dated 02/12/2022.

CASE N-532-5 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Number Item Description Evaluation Description Boric acid residue found during the performance of the ASME Section XI required VT-2 visual examinations associated with the Class A Bolted Connections in Upper Containment was Relevant conditions identified in NCR performed per work order 20543582. During the 02462292 were evaluated by examination, the following as found boric acid Engineering and found to be leakage conditions were identified on valves acceptable.

2NC-31B, 2NC-35B, 2NC-53-FL1, and 2NC-53-FL2.

B-P, B15.10 Boric acid residue found during the performance of the ASME Section XI required VT-2 visual examinations associated with the ISI Class A Leakage Test evidence of leakage was identified on the following components: 2B, C, and D's Reactor Relevant conditions identified in NCR Coolant Pump (2NCPU0002, 2NCPU0003, 02467441 were evaluated by B-P, B15.10 2NCPU0004 respectively). Engineering and found to be acceptable.

Boric acid residue found during the performance of the ASME Section XI required VT-2 visual examinations associated with the ISI Class A Leakage Test evidence of leakage was identified on Relevant conditions identified in NCR the following RX Seal Table locations: B-6, H-2, B- 8, 02467437were evaluated by B-P, B15.10 D-8. Engineering and found to be acceptable.

ISI VT-3 Visual Examination of support 2MCA-SV- Relevant condition identified in NCR H55 was performed and during the examination, 02462368 were evaluated by the as found cold load setting of 1210# was Engineering and found to be acceptable.

observed. Design cold load setting is 1068# with +/- Additionally, the cold load setting was 10% range. Previous data was reviewed which had reset per the loads and tolerance given F-A, F1.20C acceptable as found cold load setting. by the specification documents.

The Visual Examination of the Primary Containment Moisture Barrier was performed as required by ASME Section XI, Subsection IWE. The examination identified relevant conditions of the moisture Relevant conditions identified in NCR barrier such as wear, damage, surface cracks, and 02462564 evaluated by Engineering and lack of adhesion that could permit intrusion of restored using corrective measures.

moisture against inaccessible areas of pressure retaining surfaces of the metallic containment shell E-A, E1.30 and insulation panels protecting the metallic shell.

ASME Section XI, ISI VT-3 Visual Examination of Primary Containment Leak Chase Channel Relevant conditions identified in NCR Enclosures was performed and during the 02462755 evaluated by Engineering to examination, it was identified that leak chase be acceptable for continued service and channel enclosure # 69 was missing the bronze electively restored.

E-A, E1.30 closure cover.

Page 1 of 2

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

Code Replacement Class Item Description Description of Work Date Completed Plan Number Bolting Material 1 2NI-60 03/02/2023 20558798-01 Replaced Page 2 of 2