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 Question Brenda:

On Thursday, May 10, 2007 representatives of FPL discussed with the NRC staff 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 areal density 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>

Mail Envelope Properties (464373D8.3C2 : 2 : 41922)

Subject:

NRC/FPL Teleconference Concerning Metamic Surveillance Question Creation Date 05/10/2007 3:40:16 PM From: <Paul_Czaya@fpl.com>

Created By: Paul_Czaya@fpl.com Recipients nrc.gov TWGWPO01.HQGWDO01 BLM (Brenda Mozafari) fpl.com Pete_Sharp CC Carl_O'Farrill CC Yuan_Kao CC James_Connolly CC Post Office Route TWGWPO01.HQGWDO01 nrc.gov fpl.com Files Size Date & Time MESSAGE 1920 05/10/2007 3:40:16 PM Mime.822 4226 Options Expiration Date: None Priority: Standard ReplyRequested: No Return Notification: None Concealed

Subject:

No Security: Standard Junk Mail Handling Evaluation Results Message is eligible for Junk Mail handling This message was not classified as Junk Mail Junk Mail settings when this message was delivered Junk Mail handling disabled by User Junk Mail handling disabled by Administrator Junk List is not enabled Junk Mail using personal address books is not enabled Block List is not enabled