ML103080184

Analysis of Inadvertent Control Element Assembly Withdrawal at Power for the License Amendment Request for Extended Power Uprate

ML103080184
Person / Time
Site:	Saint Lucie
Issue date:	11/18/2010
From:	Broaddus D A Plant Licensing Branch II
To:	Nazar M Florida Power & Light Co
Orf, T J, NRR/DORL/301-415-2788
References
Download: ML103080184 (3)

Text

UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 rtJveiller 18, 201 0 Mr. Mano Nazar Executive Vice President and Chief Nuclear Officer Florida Power & Light Co. P. O. Box 14000 700 Universe Boulevard Juno Beach, FL 33408-0420 ST. LUCIE UNIT 1 -ANALYSIS OF INADVERTENT CONTROL ELEMENT ASSEMBLY WITHDRAWAL AT POWER FOR THE LICENSE AMENDMENT REQUEST FOR EXTENDED POWER UPRATE

Dear Mr. Nazar:

This purpose of this letter is to clarify the position of the U.S. Nuclear Regulatory Commission (NRC) with regard to the analysis of the inadvertent control element assembly withdrawal at power that your staff is preparing in support of a license amendment request for an extended power uprate (EPU) for the S1. Lucie Unit 1 (SL 1) plant, as indicated in a September 16, 2010, meeting with your staff and in subsequent telephone discussions.

The NRC staff understands that Florida Power and Light Company is using the AREVA Licensing Topical Report EMF-2310(P)(A), "SRP [Standard Review Plan] Chapter 15 Non-LOCA [Loss-of-Coolant Accident]

Methodology for Pressurized Water Reactors," in performing analyses related to FPL's submittal of a license amendment request for an EPU for SL 1. While the use of this topical report has been approved by the NRC, strict adherence to the methodology may not provide the information needed for review of the EPU, as identified by the NRC staff in item 4 of the enclosure to the NRC staff's letter dated August 13, 2010 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 102240195).

In particular, the methodology would not address an issue with parametric biasing communicated to your staff by telephone and email on September 1, 2010. Consistent with the NRC staff's safety evaluation related to the aforementioned topical report dated May 11, 2001 (ADAMS Accession No. ML011310533), acceptance review questions and/or a request for additional information may be issued requesting additional supporting assessment calculations needed to support the NRC staff's conclusions regarding the compliance of proposed operation of the S1. Lucie Nuclear Power Plant with NRC requirements.

M. Nazar -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Ort, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.

Sincerely, /_1/1//_

Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv t'bvErrber 18, 2010 M. Nazar -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Orf, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.

Sincerely, IRA! Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv DISTRIBUTION:

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