ML24096B714

Change in Estimated Review Schedule for MRP-227, Revision 2, Pressurized Water Reactor Internals Inspection and Evaluations Guideline

ML24096B714
Person / Time
Site:	Electric Power Research Institute
Issue date:	04/30/2024
From:	Lois James Licensing Processes Branch
To:	Adams B, Mcgill R Electric Power Research Institute
James L, NRR/DORL/LLPB
References
MRP-227, MRP-227, Rev 2, MRP-227, Revision 2, EPID L-2022-TOP-0029
Download: ML24096B714 (1)

Text

1 Lois James From:

Lois James Sent:

Tuesday, April 30, 2024 11:39 AM To:

McGill, Robert; bjadams@southernco.com Cc:

RidsNrrOd Resource; RidsNrrDorl Resource; RidsNrrDorlLlpb Resource; RidsNrrDnrl Resource; RidsNrrDnrlNvib Resource; RidsNrrLADHarrison Resource; RidsACRS_MailCTR Resource; Lois James; Gerond George; James Medoff; Carol Moyer; John Tsao; kamberge@epri.com; msaucier@epri.com; Angie Buford

Subject:

Change in Estimated Review Schedule for MRP-227, Revision 2, Pressurized Water Reactor Internals Inspection and Evaluations Guideline (EPID: L-2022-TOP-0029)

Brad Adams, Chairman, PMMP EC, Southern Nuclear Robert O. McGill, MRP Program Manager, Electric Power Research Institute Palo Alto Office 3420 Hillview Avenue Palo Alto, CA 94304-1338 Brad Adams and Robert McGill, By letter dated May 9, 2022, the Electric Power Research Institute (EPRI) submitted technical report Materials Reliability Program: Pressurized Water Reactor Internals Inspection and Evaluation Guidelines (MRP-227, Revision 2) to the U.S. Nuclear Regulatory Commission (NRC) staff for review and approval (Agencywide Documents Access and Management System Package Accession No. ML21301A194). The staff reviewed and accepted the technical report on June 17, 2022 (ADAMS Accession No. ML22145A401).

By letter dated April 4, 2024 (ADAMS Accession No. ML24095A274), EPRI submitted industry responses to the NRC staffs request for additional information (RAI) related to MRP-227, Revision 2, entitled Materials Reliability Program: Pressurized Water Reactor Internals Inspection and Evaluations Guideline. In the submittal letter, EPRI informed the NRC that the RAIs related to Babcock and Wilcox (B&W)-designed units will be submitted separately by May 31, 2024.

As a result of the new due date for the last RAIs, the NRC staff needs to revise the overall review schedule for MRP-227, Revision 2. The NRC staff now expects to complete its review and issue a draft safety evaluation for proprietary review by September 30, 2024.

This schedule estimate could change due to several factors such as unanticipated additional review scope. If there are emergent complexities or challenges in our review that would result in a change to the estimated completion date, the reasons for the change, and a revised estimate will be communicated during routine interactions with the assigned project manager.

The change in the estimated date for issuing the draft safety evaluation was discussed with and approved by the Deputy Director for the Division of Operating Reactor Licensing.

If you have any questions, please contact me at lois.james@nrc.gov.

Sincerely, Lois M. James, Senior Project Manager Office of Nuclear Reactor Regulation (NRR)

U.S. Nuclear Regulatory Commission Lois.James@nrc.gov

ML24096B714

^via eConcurrence *via email NRC-001 OFFICE NRR/DORL/LLPB/PM NRR/DORL/LLPB/LA NRR/DNRLNVIB/BC NRR/DORL/LLPB/BC NAME LJames^

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DATE 04/09/2024 04/09/2024 04/22/2024 04/22/2204 OFFICE NRR/DORL/LLPB/PM NAME LJames^

DATE 04/30/2024