ML23017A093

From kanterella
Jump to navigation Jump to search

NRR E-mail Capture - Palo Verde - Acceptance of License Amendment Request Regarding Adoption of TSTF-107, Separate Control Rods That Are Untrippable Versus Inoperable (L-2022-LLA-0181)
ML23017A093
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 01/17/2023
From: Dennis Galvin
NRC/NRR/DORL/LPL4
To: Cox M
Arizona Public Service Co
References
L-2022-LLA-0181
Download: ML23017A093 (3)


Text

From: Dennis Galvin Sent: Tuesday, January 17, 2023 8:29 AM To: Matthew.Cox@aps.com

Subject:

Palo Verde - Acceptance of License Amendment Request Regarding Adoption of TSTF-107, Separate Control Rods that are Untrippable versus Inoperable (L-2022-LLA-0181)

Dear Mr. Cox,

By letter dated December 7, 2022 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML22341A613), the Arizona Public Service Company submitted a license amendment request for Palo Verde Nuclear Generating Station Units 1, 2, and 3. The proposed amendments would adopt Technical Specification Task Force (TSTF)-107, Separate Control Rods that are Untrippable versus Inoperable," and make corresponding changes to Technical Specification (TS) 3.1.5, Control Element Assembly (CEA) Alignment, Conditions A, C, and D. The proposed amendments would also modify TS 3.1.5 Condition B to provide an action for limited duration loss of some position indication for multiple CEAs.

The purpose of this correspondence is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this amendment 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.

Consistent with 10 CFR 50.90, an amendment to the license (including the technical specifications) must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications. Section 50.34 of 10 CFR addresses the content of technical information required. This section stipulates that the submittal address the design and operating characteristics, unusual or novel design features, and principal safety considerations.

The NRC staff has reviewed your application as supplemented 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 amendment 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. You will be advised of any further information needed to support the NRC staffs detailed technical review by separate correspondence.

Based on the information provided in your submittal, the NRC staff has estimated that this licensing request will take approximately 325 hours0.00376 days <br />0.0903 hours <br />5.373677e-4 weeks <br />1.236625e-4 months <br /> to complete. The NRC staff expects to complete this review by January 17, 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, and unanticipated addition of scope to the review. 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) 415-6256.

Respectfully, Dennis Galvin, Project Manager Plant Licensing Branch 4 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-528, 50-529, 50-530 Hearing Identifier: NRR_DRMA Email Number: 1913

Mail Envelope Properties (SA1PR09MB8111987A1C3E22C6FBD571ACFBC69)

Subject:

Palo Verde - Acceptance of License Amendment Request Regarding Adoption of TSTF-107, Separate Control Rods that are Untrippable versus Inoperable (L-2022-LLA-0181)

Sent Date: 1/17/2023 8:28:43 AM Received Date: 1/17/2023 8:28:00 AM From: Dennis Galvin

Created By: Dennis.Galvin@nrc.gov

Recipients:

"Matthew.Cox@aps.com" <Matthew.Cox@aps.com>

Tracking Status: None

Post Office: SA1PR09MB8111.namprd09.prod.outlook.com

Files Size Date & Time MESSAGE 3770 1/17/2023 8:28:00 AM

Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: