ML22112A215

Limerick_Acceptance Review TS Change to Correct Nonconservative Technical Specification Table 3.3.3-1

ML22112A215
Person / Time
Site:	Limerick
Issue date:	03/28/2022
From:	V Sreenivas NRC/NRR/DORL/LPL1
To:	Stewart G Exelon Nuclear Generation Corp
Sreenivas V, NRR/DORL/LPL1
References
EPID L-2022-LLA-0034
Download: ML22112A215 (2)

Text

From: Sreenivas, V To: Stewart, Glenn H:(GenCo-Nuc) (Glenn.Stewart@exeloncorp.com)

Cc: Danna, James; Cusumano, Victor; West, Khadijah; Reynolds, Ronnie J:(Constellation Nuclear); Helker, David P:

(Exelon Nuclear)

Subject:

Limerick: Acceptance Review TS change to Correct Nonconservative Technical Specification Table 3.3.3-1 (EPID-L-2022-LLA-0034)

Date: Monday, March 28, 2022 11:48:00 AM

By letter dated February 24, 2022 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML22055A60 0) Constellation Energy Generation, LLC (CEG) submitted a license amendment request for Limerick Generating Station (LGS),

Units 1 and 2. Specifically to revise LGS Technical Specifications (TS) to TS Table 3.3.2-1, Isolation Actuation Instrumentation, Trip Function 1.g for Main Steam Line Isolation. In particular, the proposed change will increase the minimum operable channels per trip system for the "Turbine Enclosure - Main Steam Line Tunnel Temperature - High" trip function from 14 channels per trip system to 16 channels per trip system.

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 license amendment request 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 assessment regarding the acceptability of the proposed relief 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 review of this request will take approximately 130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br /> for this license amendment to complete. The NRC staff expects to complete this review in approximately 12 months from acceptance (March 28, 2023). 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 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 at (301) 415-2597 or V.Sreenivas@nrc.gov.

Docket Nos. 50-352 and 50-353 V. Sreenivas, Ph.D., CPM.,

Licensing Project Manager Limerick and Ginna Nuclear Power Plants Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation