ML24282A704
| ML24282A704 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 10/08/2024 |
| From: | Joel Wiebe NRC/NRR/DORL/LPL3 |
| To: | Zurawski L Constellation Energy Generation |
| References | |
| Download: ML24282A704 (3) | |
Text
From:
Joel Wiebe Sent:
Tuesday, October 8, 2024 8:02 AM To:
Zurawski, Lisa M:(Constellation Nuclear)
Cc:
Danii Gantt (Danii.Gantt@constellation.com);
Rebecca.Steinman@constellation.com
Subject:
Acceptance Reviews of Relief Requests Associated with the Fifth Inservice Inspection Interval at Byron and Braidwood Stations Hi Lisa, By letter dated September 13, 2024 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML24257A063), Constellation Energy Generation, LLC (Constellation) submitted relief requests associated with the fifth inspection service intervals for Byron, Unit Nos. 1 and 2, and Braidwood Station, Units 1 and 2. Specifically, Constellation proposed alternatives for the fifth inspection service intervals as follows:
I5R-01: Alternative Requirements for Repair/Replacement of Control Rod Drive Mechanism (CRDM) Canopy Seal Welds in Accordance with IWA-4000. There currently are no known degraded canopy seal welds at Byron Station.
I5R-02: Proposed Alternative Requirements for the Repair and Examination of Reactor Vessel Head Penetrations I5R-03: Proposed Alternative Concerning ASME Section XI Repair/Replacement Documentation for Replacement of Pressure Retaining Bolting In addition Constellation requested a continuation of application of certain ASME Section XI 2013 Edition non-destructive examination requirements.
I5R-04: Request to Permit Continued Application of Certain ASME Section XI 2013 Edition Non-Destructive Examination Requirements The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance reviews of these requests. The acceptance reviews were performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical reviews. The acceptance reviews are also intended to identify whether the applications have any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.
The NRC staff has reviewed the requests and concluded that they do provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical reviews and make an independent assessment regarding the acceptability of the proposed alternatives and continued application of certain ASME Section XI requirements 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 reviews as compared to the detailed technical reviews, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical reviews are identified despite completion of adequate acceptance reviews. 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 these requests will consume the following resources and their issuance dates:
I5R 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />, May 16, 2025 I5R 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br />, May 16, 2025 I5R 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br />, May 16, 2025 I5R 160 hours0.00185 days <br />0.0444 hours <br />2.645503e-4 weeks <br />6.088e-5 months <br />, May 16, 2025 If there are emergent complexities or challenges in our reviews that would cause changes to the initial forecasted completion dates 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.
If you have any questions, please contact me at (301) 415-6606 or Joel.Wiebe@nrc.gov.
Joel
Hearing Identifier:
NRR_DRMA Email Number:
2618 Mail Envelope Properties (BLASPR01MB00030681F104CE5D5593D67B8B7E2)
Subject:
Acceptance Reviews of Relief Requests Associated with the Fifth Inservice Inspection Interval at Byron and Braidwood Stations Sent Date:
10/8/2024 8:02:28 AM Received Date:
10/8/2024 8:02:00 AM From:
Joel Wiebe Created By:
Joel.Wiebe@nrc.gov Recipients:
"Danii Gantt (Danii.Gantt@constellation.com)" <Danii.Gantt@constellation.com>
Tracking Status: None "Rebecca.Steinman@constellation.com" <Rebecca.Steinman@constellation.com>
Tracking Status: None "Zurawski, Lisa M:(Constellation Nuclear)" <lisa.zurawski@constellation.com>
Tracking Status: None Post Office:
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