L-2022-154, Subsequent License Renewal Application Revision 1, Supplement 4

Subsequent License Renewal Application Revision 1, Supplement 4

ML22265A134
Person / Time
Site:	Saint Lucie
Issue date:	09/22/2022
From:	Maher W Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2022-154
Download: ML22265A134 (7)

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 Digitally signed by William Maher

 DN: cn=William Maher, o=Nuclear, William ou=Nuclear Licensing Projects,

 email=william.maher@fpl.com, c=US

 Date: 2022.09.22 11:36:32 -04'00' Maher





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St. Lucie Units 1 and 2 Dockets 50-335 and 50-389 L-2022-154 Attachment 1 Page 1 of 5

Environmentally-Assisted Fatigue

Affected SLRA Sections: Table 19-3 (Appendix A2), B.2.2.1 SLRA Page Numbers: A2-65, B-25 Description of Change:

As indicated in the response to RAI 4.3.3-2 (ADAMS Accession No. ML22181A147), the PSL Unit 2 spray nozzle transient (also called the spray nozzle transient 17A/B/C) was intended to be included in the St. Lucie Units 1 and 2 Fatigue Monitoring Program and counted during the SPEO. However, this requirement was inadvertently omitted from the revision to SLRA Table 19-3, Item No. 1 of Appendix A2 and Section B.2.2.1. This supplemental response revises SLRA Table 19.3 of Appendix A2 and Enhancement 2 of SLRA Section B.2.2.1 to reflect this SPEO cycle counting requirement.

In addition to the SLRA revisions discussed above, the revised SLRA Table 19.3 of Appendix A2 and enhancement table of SLRA Section B.2.2.1 below include the revisions associated with 1 of Reference 1, Attachment 10 of Reference 2, Attachments 3 and 4 of Reference 3, and Attachment 5 of Reference 4.

References:

1. FPL Letter L-2022-043 dated April 7, 2022 - Subsequent License Renewal Application Revision 1 - Supplement 1 (ADAMS Accession No. ML22097A202)

2. FPL Letter L-2022-075 dated June 13, 2022 - Subsequent License Renewal Application

- Aging Management Requests for Additional Information (RAI) Set 1A Response (ADAMS Accession No. ML22164A802)

3. FPL Letter L-2022-081 dated June 30, 2022 - Subsequent License Renewal Application

- Aging Management Requests for Additional Information (RAI) Set 1B Response (ADAMS Accession No. ML22181A147)

4. FPL Letter L-2022-108 dated July 11, 2022 - Subsequent License Renewal Application

- Aging Management Requests for Additional Information (RAI) Set 2 Response (ADAMS Accession No. ML22192A078)

St. Lucie Units 1 and 2 Dockets 50-335 and 50-389 L-2022-154 Attachment 1 Page 4 of 5

SLRA Section B.2.2.1, page B-25, as updated by Attachment 11 to ADAMS Accession No. ML22097A202, Attachment 10 to ADAMS Accession No. ML22164A802, and Attachments 3 and 4 to ADAMS Accession No. ML22181A147, is revised as follows:

Enhancements

The PSL Fatigue Monitoring AMP will be enhanced as follows, for alignment with NUREG-2191. The enhancements are to be implemented no later than 6 months prior to entering the SPEO.

Element Affected Enhancement

1. Scope of Program Update the AMP governing procedure to take action to revise the affected St. Lucie Unit 2 Class 1 piping fatigue analyses before 80-year plant design cycle limits are exceeded, and identify any new break locations (CUF > 0.1) requiring evaluation for impact on essential SSCs, including evaluation for associated dynamic affects (jet impingement, reactive forces and pipe whip, compartment pressure and environmental conditions), as required.

3. Parameters Monitored or Update the AMP governing procedure to monitor the chemistry Inspected parameters that provide inputs to Fen factors used in CUFen calculations. This chemistry parameter includes reactor coolant dissolved oxygen which is controlled and tracked in accordance with the PSL Water Chemistry (Section B.2.3.2) AMP.

3. Parameters Monitored or Update the AMP governing procedure to identify and require Inspected monitoring of the 80-year plant design cycles, or projected cycles that are utilized as inputs to component CUFen calculations, as applicable. These transients include:

xx The plant loading/unloading transient, the 10 percent step load increase/decrease transient, and the cold feedwater following hot standby transient.

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3. Parameters Monitored or Update the plant procedure to monitor and track the following Inspected transients during the SPEO:

x /RVVRIFKDUJLQJ x Loss of letdown x /RVVRIUHJHQHUDWLYHKHDWH[FKDQJHUVKRUW WHUP

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St. Lucie Units 1 and 2 Dockets 50-335 and 50-389 L-2022-154 Attachment 1 Page 5 of 5

Element Affected Enhancement

5. Monitoring and Trending Update the AMP governing procedure to identify the corrective action options if the values assumed for fatigue parameters are approached, transient severities exceed the design or assumed severities, transient counts exceed the design or

Associated

Enclosures:

None.