ML20318A241

Summary of Public Meeting with Southern Nuclear Operating Company, to Discuss Topic Regarding Vogtle Electric Generating Plant, Unit 4: ITAAC Post Closure Notification for ITAAC Index Number 344

ML20318A241
Person / Time
Site:	Vogtle
Issue date:	11/18/2020
From:	Alina Schiller NRC/NRR/VPOB
To:	Omar Lopez-Santiago Office of Nuclear Reactor Regulation
Alina Schiller Ex 8777
Shared Package
ML20318A247	List: ML20318A241
References
Download: ML20318A241 (8)

Text

November 18, 2020 MEMORANDUM TO: Omar Lpez-Santiago, Chief Vogtle Project Office Office of Nuclear Reactor Regulation Signed by Schiller, Alina FROM: Alina Schiller, Project Manager on 11/18/20 Vogtle Project Office Office of Nuclear Reactor Regulation

SUMMARY

OF A PUBLIC MEETING WITH SOUTHERN NUCLEAR OPERATING COMPANY ON NOVEMBER 12, 2020 The U.S. Nuclear Regulatory Commission (NRC) staff held a Category 1 public meeting with Southern Nuclear Operating Company (SNC) on November 12, 2020. The purpose of the meeting was to discuss the following topic regarding Vogtle Electric Generating Plant (VEGP),

Unit 4: Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) Post Closure Notification (IPCN) for ITAAC Index Number 344.

The meeting notice can be found in the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML20315A099. The meeting notice is also posted on the NRC public website. Enclosures 1 and 2 are the meeting agenda and attendance list for the meeting, respectively. The documents referenced during the discussion can be found under ADAMS Accession Nos. given below:

Supplement for AP1000 ITAAC ML20301A851 2.3.05.03a.ii (Index Number 344) completion Discussion material on VEGP Unit 4 Polar ML20314A334 Crane, NRC Brake System Questions CONTACT: Alina Schiller, NRR/VPO (301) 415-8177

O. Lpez-Santiago Summary of Meeting During the review of the IPCN for ITAAC Index No. 344, received on October 27, 2020 (ADAMS Accession No. ML20301A851), the NRC staff questioned the acceptability of SNCs planned corrective action for the abnormal wear of the VEGP Unit 4 polar crane auxiliary hoist holding brake.

To better understand the issue, the staff provided SNC a set of questions on the braking mechanism and observed degradation. SNCs answers to the NRC staffs questions are available under ADAMS Accession No. ML20314A334. SNC provided background of the ITAAC Closure Notification (ICN) on completion of ITAAC Index No. 344 for the Unit 4 polar crane that was submitted on July 22, 2020 (ADAMS Accession No. ML20204B029). On September 30, 2020, a condition report was generated to note that the auxiliary hoist was not holding the load as expected. The crane operators at that time reported that the emergency brake had actuated, and SNC initiated an investigation. SNC determined that the holding torque developed by the brake was no longer meeting the acceptance criteria of the ITAAC. Following investigation, it was determined that one of the brake shoes was not properly aligned, which resulted in an abnormal wear on one end of the shoe.

SNC stated it used a torque adjustment verification to prove the ITAAC acceptance criteria were met following shoe alignment. This verification method is significantly different than the methodology used in the ICN, therefore resulting in a need to submit an IPCN. SNC stated that this alternative method performed under ITAAC maintenance for ITAAC Index No. 344 is recognized as the industry standard practice and was in accordance with the American Society of Mechanical Engineers Standard B30.2, Overhead and Gantry Cranes, which is the licensing basis standard for operational overhead crane inspection, testing, and maintenance. SNC further stated that this was adequate to show that the single failure proof design capability had been re-established.

The NRC staff provided some observations and clarified that the only affected part of the ITAAC was the ability to brake and hold the load. SNC agreed with all staffs observations.

The NRC staff stated that the IPCN is typical of the level of detail acceptable for the notification.

The staff added that the focus of this IPCN should be the basis for the alternative test methodology, which is how the IPCN is presented.

At the conclusion of the discussion, there was an opportunity for the public to provide comments and ask questions. There were no comments or questions from the public.

Docket Nos.: 52-025 52-026

Enclosures:

As stated cc w/encls: See next page

AGENDA FOR PUBLIC MEETING U.S. NUCLEAR REGULATORY COMMISSION (NRC)

Thursday, November 12, 2020 Teleconference 11:00 a.m. - 12:00 p.m.

PURPOSE: To discuss issues associated with the safety review of licensing actions and/or Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC) closures for Southern Nuclear Operating Companys (SNC) Vogtle Electric Generating Plant (VEGP) Units 3 and 4.

OPEN Time Topic Led By 11:00 a.m. Opening Remarks NRC 11:10 a.m. Discussion of Identified Topics NRC/SNC Opportunity for Public Comment NRC/Public Open Portion Concludes CLOSED (If needed) NRC/SNC 12:00 p.m. Adjourn Enclosure 1

PUBLIC MEETING U.S. NUCLEAR REGULATORY COMMISSION Thursday, November 12, 2020 Teleconference 11:00 a.m. - 12:00 p.m.

List of Attendees Name Organization Representing the Nuclear Regulatory Commission Omar Lpez-Santiago Mike King Christopher Welch NRR/VPO Jim Gaslevic Alina Schiller Steve Jones Brian Wittick NRR/DSS MJ Ross-Lee Joseph Donoghue Michael Spencer OGC Katie McCurry Region II Representing Industry Tom Petrak Nicholas Kellenberger Stephanie Agee Mark Humphrey Southern Nuclear Operating Company Mark Wilson Nitin Patel Tyrone Tonkinson Shawn Gibbs Note: All participated via teleconference.

Enclosure 2

Vogtle Mailing List (Revised 9/16/2020) cc:

Resident Manager Resident Inspector Oglethorpe Power Corporation Vogtle Plant Units 3 & 4 Alvin W. Vogtle Nuclear Plant 7825 River Road, BIN 63031 7821 River Road Waynesboro, GA 30830 Waynesboro, GA 30830 Mr. Barty Simonton Office of the Attorney General Team Leader 40 Capitol Square, SW Environmental Radiation Program Atlanta, GA 30334 Air Protection Branch Environmental Protection Division Southern Nuclear Operating Company 4244 International Parkway, Suite 120 Document Control Coordinator Atlanta, GA 30354-3906 3535 Colonnade Parkway Birmingham, AL 35243 Brian H. Whitley Regulatory Affairs Director Anne F. Appleby Southern Nuclear Operating Company Olgethorpe Power Corporation 3535 Colonnade Parkway, BIN N-226-EC 2100 East Exchange Place Birmingham, AL 35243 Tucker, GA 30084 Mr. Michael J. Yox County Commissioner Site Regulatory Affairs Director Office of the County Commissioner Vogtle Units 3 & 4 Burke County Commission 7825 River Road Waynesboro, GA 30830 BIN 63031 Waynesboro, GA 30830 Mr. Wayne Guilfoyle Commissioner District 8 Augusta-Richmond County Commission 4940 Windsor Spring Rd Hephzibah, GA 30815 Gwendolyn Jackson Burke County Library 130 Highway 24 South Waynesboro, GA 30830 Mr. Reece McAlister Executive Secretary Georgia Public Service Commission Atlanta, GA 30334 Page 1 of 3

Vogtle Mailing List Email:

ppsena@southernco.com (Peter Paul Sena III) dlmckinn@southernco.com (D.L. McKinney mdmeier@southernco.com (Michael Meier) gchick@southernco.com (Glen Chick) ststimac@southernco.com (Stephen Stimac) patmarti@southernco.com (Patrick A. Martino) myox@southernco.com (Michael J. Yox) asparton@southernco.com (Anthony S. Parton) kroberts@southernco.com (Kelli A. Roberts) tgpetrak@southernco.com (Tom C. Petrak) ctdefnal@southernco.com (Chris T. Defnall) cemorrow@southernco.com (Calvin E. Morrow) x2rlbeil@southernco.com (Robert L. Beilke) sleighty@southernco.com (Steve Leighty) acchambe@southernco.com (Amy C. Chamberlain) jhaswell@southernco.com (Jeremiah C. Haswell) chandu.patel@nrc.gov (Chandu Patel) george.khouri@nrc.gov (George Khouri) nicholas.karlovich@nrc.gov (Nicholas D. Karlovich andrew.lerch@nrc.gov (Andrew Lerch) christopher.even@nrc.gov (Christopher Even) brian.kemker@nrc.gov (Brian J. Kemker) nicole.coovert@nrc.gov (Nicole C. Coovert) christopher.welch@nrc.gov (Christopher Welch) james.gaslevic@nrc.gov (James Gaslevic) victor.hall@nrc.gov (Victor Hall) garry.armstrong@nrc.gov (Garry Armstrong) michael.webb@nrc.gov (Michael Webb) thomas.fredette@nrc.gov (Thomas Fredette) steven.smith@nrc.gov (Steven Smith) cayetano.santos@nrc.gov (Cayetano Santos) marissa.bailey@nrc.gov (Marissa Bailey) steven.rose@nrc.gov (Steven Rose) bradley.davis@nrc.gov (Bradley Davis) jose.vasquez@nrc.gov (Jose Vasquez) jason.eargle@nrc.gov (Jason Eargle) kenya.carrington@nrc.gov (Kenya Carrington) michael.king2@nrc.gov (Michael King) evan.davidson@nrc.gov (Evan Davidson) theodore.fanelli@nrc.gov (Theodore Fanelli) bob.brinkman@opc.com (Robert B. Brinkman) eric.rasmussen@opc.com (Eric Rasmussen) jfuller@meagpower.org (J. E. Fuller) sjackson@meagpower.org (S.M. Jackson) tbundros@dutil.com (T. Bundros) orianil@westinghouse.com (Dr. L. Oriani)

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Vogtle Mailing List continued durhamdc@westinghouse.com (D. C. Durham) corletmm@westinghouse.com (M.M. Corletti) harperzs@westinghouse.com (Zach Harper) cowardjl@westinghouse.com (J. L. Coward) swkline@bechtel.com (S. W. Kline) lisa.matis@tetratech.com (Lisa Matis) bill.jacobs@gdassociates.com (Dr. Bill Jacobs) sroetger@psc.state.ga.us (S. Roetger) rtrokey@psc.state.ga.us (Robert L. Trokey) kevin.greene@troutmansanders.com (Kevin C. Greene) sblanton@balch.com (Stan Blanton) g2ndrmdc@southernco.com (SNC Document Control)

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ML20318A241 OFFICE NRR/VPO/VPOB NRR/VPO/VPOB NRR/VPO/VPOB NRR/VPO/VPOB NAME RButler RB CSantos CS OLopez-Santiago OL ASchiller AS DATE Nov 13, 2020 Nov 17, 2020 Nov 18, 2020 Nov 18, 2020