ML20071D096

NRR E-mail Capture - Request for Additional Information - McGuire Nuclear Station Unit 1 Delay in Update of the Code of Record for in Service Inspections

ML20071D096
Person / Time
Site:	McGuire
Issue date:	03/05/2020
From:	Gregory Croon NRC/NRR/DORL/LPL2-1
To:	Sigmon C Duke Energy Carolinas
References
Download: ML20071D096 (3)

Text

From: Croon, Gregory Sent: Thursday, March 5, 2020 8:11 AM To: Sigmon, Chet Austin Cc: Mahoney, Michael; Arthur.Zaremba@duke-energy.com

Subject:

Request for Additional Information - McGuire Nuclear Station Unit 1 Delay in Update of the Code of Record for In Service Inspections Chet:

By letter dated December 19, 2019 (Agencywide Documents and Access Management System (ADAMS) Accession ML19353C619), as supplemented by letter dated January 23, 2020 (ADAMS Accession ML20023A272), Duke Energy Carolinas (the licensee) submitted Relief Request RA-20-0031 in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(z)(1). The proposed relief request will allow the licensee to continue to use the requirements of the 2007 Edition with 2008 Addenda of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, for Class 1, 2 and 3 during the first inspection period of the fifth 10-year inservice inspection (ISI) interval. Relief Request RA-20-0031 is for the McGuire Nuclear Station (McGuire), Unit 1.

The NRC staff has reviewed the application and, based upon this review, determined that additional information is needed to complete our review. Please provide a response on the docket within 30 days of this correspondence.

Request for Additional Information (RAI-01)

Confirm that, with the NRC approval of Relief Request RA-20-0031, the length of McGuire, Unit, 1 fourth and fifth 10-year ISI intervals will not be affected and that the fourth ISI interval will still be scheduled to end on November 30, 2021, and the fifth ISI interval will be scheduled to start on December 1, 2021 and end on November 30, 2031.

RAI-02

Given the licensees statement on page 3 of its January 23, 2020 submittal:

The proposed alternative includes continued use of relief requests submitted and approved for McGuire Unit 1 in the 2nd and 3rd periods of the fourth 10-year Interval, during the 1st period of the fifth 10-year Interval.

a. Provide a list (with ADAMS Accession numbers), of relief requests that were previously approved by the NRC for use in the second and third periods of the fourth 10-year ISI interval of McGuire, Unit 1, that are requested by the licensee for continued use in the first inspection period of the fifth 10-year ISI interval.

b. For the identified relief requests in above item a, address whether any NRC actions have been taken (e.g., endorsement, with or without conditions, of an ASME Code Case upon which a prior relief request was based) after NRC approval.

c. Clarify whether it is the licensees intent that the continued use of the identified relief requests (in above item a), for the first period of the fifth 10-year ISI interval is justified by the information provided in the prior licensee submittals for these relief requests, or, for each relief request, provide justifications for continued use in the first inspection period of the fifth 10-year ISI interval.

Once this email is added to ADAMS, I will provide the accession number for your reference.

Thanks Greg Gregory S. Croon, J.D.

Project Manager OWFN/08C06 Plant Licensing Branch (II-1 LPL2-1)

Division of Operating Reactor Licensing (DORL)

Office of Nuclear Reactor Regulation (NRR)

W: 301-415-1023 Email: gregory.croon@nrc.gov

Hearing Identifier: NRR_DRMA Email Number: 470 Mail Envelope Properties (DM6PR09MB4255DD1DC54F6B4993561ED2F7E20)

Subject:

Request for Additional Information - McGuire Nuclear Station Unit 1 Delay in Update of the Code of Record for In Service Inspections Sent Date: 3/5/2020 8:10:45 AM Received Date: 3/5/2020 8:10:00 AM From: Croon, Gregory Created By: Gregory.Croon@nrc.gov Recipients:

"Mahoney, Michael" <Michael.Mahoney@nrc.gov>

Tracking Status: None "Arthur.Zaremba@duke-energy.com" <Arthur.Zaremba@duke-energy.com>

Tracking Status: None "Sigmon, Chet Austin" <Chet.Sigmon@duke-energy.com>

Tracking Status: None Post Office: DM6PR09MB4255.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 3184 3/5/2020 8:10:00 AM Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: