L-2022-058, Fifth Ten-Year Inservice Inspection Interval Relief Request No. 10 Part-II, Supplement to RAI Responses Documented in L-2022-051
| ML22091A309 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 03/31/2022 |
| From: | Hess R Florida Power & Light Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-2022-058 | |
| Download: ML22091A309 (2) | |
Text
March 31, 2022 L-2022-058 10 CFR 50.55a U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555-0001 Re:
Turkey Point Unit 3 Docket Nos. 50-250 Fifth Ten-Year Inservice Inspection Interval Relief Request No. 10 Part-II, Supplement to RAI responses documented in L-2022-051
References:
- 1. Florida Power & Light Company letter L-2021-183, Fifth Ten-year Inservice Inspection Interval Relief Request Number 10, September 30, 2021 (ADAMS Accession Nos. ML21273A240, ML21273A241)
- 2. Florida Power & Light Company letter L-2021-197, Response to Request for Additional Information for ISI Relief Request No. 10 Dated October 15, 2021 (ADAMS Accession ML21288A544)
- 3. Florida Power & Light Company letter L-2021-207, Response to Request for Additional Information for ISI Relief Request No. 10 Dated October 25, 2021 (ADAMS Accession ML21298A201)
- 4. NRC, Verbal Authorization read by David Wrona, Chief of the Plant Licensing Branch II-2, Office of Nuclear Reactor Regulation, Relief Request No. 10 Use of ASME CODE CASE N-513-4 for extended period not to exceed six months, October 29, 2021
- 5. Florida Power & Light Company letter L-2022-035, Fifth Ten-Year Inservice Inspection Interval Relief Request No. 10 Part-II, Dated March 10, 2022 (ADAMS Accession ML22069B128, ML22069B129)
- 6. NRC email from Mr. Michael Mahoney to Mr. Hess, Turkey Point Nuclear Generating Unit No. 3 - Request for Additional Information - ICW Alternative, dated March 21, 2022.
- 7. Florida Power & Light Company letter L-2022-051, Fifth Ten Year Inservice Inspection Interval Relief Request No. 10 Part-II, Supplemental Information and Response to Request for Additional Information, dated March 29, 2022 (ADAMS Accession ML22088A320, ML22088A321)
In Reference 1, Pursuant to 10 CFR 50.55a(z)(2), Florida Power & Light Company (FPL) requested Nuclear Regulatory Commission (NRC) for relief from the applicable American Society of Mechanical EngineersSection XI Code (ASME Code) requirements to repair a section of the degraded Unit 3 Intake Cooling Water (ICW) pipe spool by installing a proprietary repair device, with new pressure boundary material and without removing the sections of degraded piping, and to extend the use of Code Case N-513-4 for six months until final design is complete and repair is implemented. In References 2 and 3, FPL provided response to NRCs request for additional information to address the
L-2022-058 Page 2 extension of ASME Code Case N-513-4 to demonstrate that structural integrity of the ICW discharge pipe spool piece will continue for the requested period of six months. In Reference 4, NRC authorized in the first part of the Relief Request 10, the use of relief with enhanced frequent periodic examinations of the flaw and leakage monitoring beyond what is required by ASME Code Case N-513-4 for the extended period of six months or until April 29, 2022.
The second part of the Relief Request No. 10, Part II was submitted to NRC on March 10, Reference 5. The NRC Staff reviewed Part II of the relief and determined that additional information is needed to complete their review. FPL received the request for additional information (RAI) from the NRC through electronic mail on March 21, 2022, Reference 6. In Reference 7, FPL provided supplemental information and the responses to NRC's RAls.
The purpose of this letter is to supplement FPL's response to RAls 4, 5 and 7 submitted previously in FPL letter L-2022-051, Reference 7.
As discussed with NRC Staff on March 31, 2022, the monitoring program as it is referenced in the response to RAls 4, 5 and 7, is revised to include quarterly walkdowns for the first 10 years of the life of the RHA, and monthly walkdowns afterwards.
If you have any questions, please contact Robert J. Hess, Licensing Manager, at (305) 246-4112.
Sincerely,
~ -
Robert J. Hess Licensing Manager Turkey Point Nuclear Plant cc:
USNRC Regional Administrator, Region II, USNRC USNRC Senior Resident Inspector, USNRC, Turkey Point Nuclear Plant USNRC Project Manager, Turkey Point Nuclear Plant