ML24115A236

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Acceptance Review: Alternative to the Requirements of the ASME Code for Examination of Control Rod Drive Mechanism (Rod) Housing H-4 Canopy Seal Weld
ML24115A236
Person / Time
Site: Seabrook NextEra Energy icon.png
Issue date: 03/28/2024
From: V Sreenivas
Plant Licensing Branch 1
To: Phillabaum J
NextEra Energy Seabrook
Poole J, NRR/DORL/LPLI, 415-2048
References
EPID L-2024-LLR-0019
Download: ML24115A236 (1)


Text

From:

V Sreenivas To:

Phillabaum, Jerry Cc:

Mack, Kenneth; Hipo Gonzalez

Subject:

SEABROOK UNIT 1: ACCEPTANCE REVIEW: Alternative to the Requirements of the ASME Code for Examination of Control Rod Drive Mechanism (ROD) Housing H-4 Canopy Seal Weld (EPID: L-2024-LLR-0019)

Date:

Thursday, March 28, 2024 12:57:00 PM By letter dated February 28, 2024 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML24065A289), NextEra Energy Seabrook, LLC (NextEra) requested relief from ASME Code Section Ill, Subsection NB-5270/NB-5271 to perform a liquid penetrant (PT) surface examination of the repair/replacement of the Seabrook Unit 1 Reactor Vessel Closure Head (RVCH) Control Rod Drive Mechanism (ROD) Housing H-4 Canopy Seal Weld. The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this relief request. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed request in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. If additional information is needed, you will be advised by separate correspondence.

Based on the information provided in your submittal, the NRC staff has estimated that this licensing request will take approximately 140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br /> to complete. The NRC staff expects to complete this review by October 30, 2024.

If there are emergent complexities or challenges in our review that would cause changes to the initial forecasted completion date or significant changes in the forecasted hours, the reasons for the changes, along with the new estimates, will be communicated during the routine interactions with the assigned project manager.

These estimates are based on the NRC staffs initial review of the application and they could change, due to several factors including requests for additional information, unanticipated addition of scope to the review, and review by NRC advisory committees or hearing-related activities. Additional delay may occur if the submittal is provided to the NRC in advance or in parallel with industry program initiatives or pilot applications.

If you have any questions, please contact me.

V. Sreenivas, Ph.D., CPM.,

PM for Beaver Valley, Ginna, Seabrook Stations Division of Operating Reactors Licensing, LPL1 U.S. Nuclear Regulatory Commission V.Sreenivas@nrc.gov

Docket No.

50-443

cc: Listserv