ML24305A006

E-mail - Transmittal of Final Safety Evaluation for MRP-227, Revision 2, Pressurized Water Reactor Internals Inspection and Evaluations Guideline

ML24305A006
Person / Time
Site:	Electric Power Research Institute
Issue date:	01/29/2025
From:	Lois James Licensing Processes Branch
To:	Mcgill R, Meeden A Arizona Public Service Co, Electric Power Research Institute
Shared Package
ML24305A005	List: ML24305A006 ML24305A007
References
MRP-227, MRP-227, Rev 2, MRP-227, Revision 2, EPID L-2022-TOP-0029
Download: ML24305A006 (1)

Text

1 Lois James From:

Lois James Sent:

Wednesday, January 29, 2025 12:04 PM To:

McGill, Robert; alfred.meeden@aps.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; Dan Widrevitz; kamberge@epri.com; msaucier@epri.com

Subject:

Transmittal of Final Safety Evaluation for MRP-227, Revision 2, Pressurized Water Reactor Internals Inspection and Evaluations Guideline (EPID L-2022-TOP-0029)

Attachments:

Final Safety Evaluation for MRP-227 Revision 2.pdf A. Rex Meeden, Chairman, PMMP EC, Arizona Public Service (APS)

Robert O. McGill, MRP Program Manager, Electric Power Research Institute Palo Alto Office 3420 Hillview Avenue Palo Alto, CA 94304-1338 Rex Meeden 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 Accession No. ML21301A194). The NRC staff reviewed and accepted the technical report on June 17, 2022 (ADAMS Accession No. ML22145A401).

By email dated September 30, 2024, the NRC staff issued its draft safety evaluation (SE) (ADAMS Accession No. ML24233A065) for proprietary review.

By email dated October 30, 2024 (ADAMS Accession No. ML24304B021), EPRI informed the NRC staff that there was no proprietary information in the draft SE and provided comments for the NRC staff consideration.

The NRC staff has found MRP-227, Revision 2, is acceptable for referencing in licensing applications for nuclear power plants to the extent specified and under the limitations delineated in the TR and in the enclosed final SE. The final SE defines the basis for our acceptance of the TR.

Our acceptance applies only to material provided in the subject report. We do not intend to repeat our review of the acceptable material described in the report. When the report appears as a reference in license applications, our review will ensure that the material presented applies to the specific plant involved. License amendment requests that deviate from this report will be subject to a plant-specific review in accordance with applicable review standards.

In accordance with the guidance provided on the NRC website, we request that EPRI publish an accepted version of MRP-227, Revision 2, within 180 days of receipt of this email. The approved versions shall incorporate this letter and the enclosed final SE after the title page. The accepted version shall include an A (designating accepted) following the report identification symbol.

ML24305A005 (Pkg)

ML24305A006 (E-mail)

ML24305A007 (Final SE) ^via eConcurrence *via email OFFICE DORL/LLPB/PM DORL/LLPB/LA DNRL/NVIB/BC OGC (NLO)

NAME LJames^

DHarrison^

ABuford^

DRoth*

DATE 12/04/2024 12/17/2024 12/26/2024 01/22/2025 OFFICE DORL/LLPB/BC DORL/LLPB/PM NAME GGeorge^

LJames^

DATE 01/29/2025 01/29/2025