ML071300621

e-mail 5/10/07; Subject: Nrc/Fpl Teleconference Concerning Metamic Surveillance Question

ML071300621
Person / Time
Site:	Turkey Point
Issue date:	05/10/2007
From:	Czaya P Florida Power & Light Co
To:	Mozafari B Plant Licensing Branch III-2
References
Download: ML071300621 (2)

Text

From: <Paul_Czaya@fpl.com>To:<BLM@nrc.gov>Date: 05/10/2007 3:34:57 PM

Subject:

NRC/FPL Teleconference Concerning Metamic Surveillance QuestionBrenda:On Thursday, May 10, 2007 representatives of FPL discussed with the NRCstaff a clarification of a statement made in FPL's request for additional information response dated April 30, 2007 (FPL letter L-2007-079). On page 7 of the response, FPL provided acceptance criteria for neutron attenuation testing of Metamic neutron poison material intended for use in the spent fuel pools (Turkey Point License Amendment Application No.178 dated January 27, 2006 - FPL letter L-2005-247). The NRC staff sought clarification of the statement regarding "significant decreases in areal density." This email documents the substance of the discussion between FPL and the NRC staff.During the teleconference, FPL defined "a significant decrease in arealdensity" as any unexpected decrease in areal density from the as-fabricated condition outside the statistical inaccuracies of the testing methodology.

If testing identifies a significant decrease in areal density, it would be identified within the Corrective Action Program resulting in specific analyses to determine the cause and to understand the boron depletion mechanism. FPL will establish the as-fabricated condition by using the fabrication features, qualification and acceptance testing values for the boron areal density provided by the manufacturer. The manufacturer provides a guaranteed minimum value or a given value with a confidence range. FPL will review the fabrication qualification and acceptance test data to determine whether the value provided is acceptable for pre-characterization. If this value is determined not to be acceptable, FPL may decide to perform neutron attenuation testing of a coupon prior to installation of the Metamic inserts to establish a baseline.Paul Czaya Licensing Turkey Point Nuclear Plant 9760 SW 344th St.

Florida City, FL 33035 Phone: 305-246-7150 Fax: 305-246-6651 Email: paul_czaya@fpl.com CC:<James_Connolly@fpl.com>, <Yuan_Kao@fpl.com>,<Carl_O'Farrill@fpl.com>, <Pete_Sharp@fpl.com

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NRC/FPL Teleconference Concerning Metamic Surveillance QuestionCreation Date05/10/2007 3:40:16 PM From: <Paul_Czaya@fpl.com>Created By:Paul_Czaya@fpl.com Recipientsnrc.gov TWGWPO01.HQGWDO01 BLM (Brenda Mozafari)fpl.com Pete_Sharp CC Carl_O'Farrill CC Yuan_Kao CC James_Connolly CCPost OfficeRoute TWGWPO01.HQGWDO01nrc.govfpl.comFilesSizeDate & Time MESSAGE192005/10/2007 3:40:16 PM Mime.8224226Options Expiration Date:None Priority:Standard ReplyRequested:No Return Notification:None Concealed

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