NRC 2013-0009, Fall 2011 Refueling Outage (U1R33) Steam Generator Tube Inspection Report

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Fall 2011 Refueling Outage (U1R33) Steam Generator Tube Inspection Report
ML13031A353
Person / Time
Site: Point Beach NextEra Energy icon.png
Issue date: 01/31/2013
From: Millen M
Point Beach
To:
Office of Nuclear Reactor Regulation, Document Control Desk
References
NRC 2013-0009
Download: ML13031A353 (2)


Text

POINT BEACH January 31,2013 NRC 2013-0009 TS 5.6.8 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Point Beach Nuclear Plant, Unit 1 Docket 50-266 Renewed License No. DPR-24 Fall 2011 Unit IRefueling Outage (U1R33)

Steam Generator Tube Inspection Report

References:

( I ) NextEra Energy Point Beach, LLC letter to NRC, dated May 29, 2012, Fall 2011 Unit 1 (U1R33) Steam Generator Tube lnspection Report (MLI 2150A287)

In Reference (I), NextEra Energy Point Beach, LLC (NextEra) submitted the 180-day Steam Generator Tube lnspection Report providing the results of the fall 2011 Point Beach Nuclear Plant (PBNP) Unit 1 refueling outage (U1R33) steam generator tube in-service inspections.

NextEra has determined that there were mathematical errors in Table 6-1 of Enclosure 1 of Reference (1). PBNP Unit 1 Steam Generators (SGs) A and B have 3214 tubes. With five tubes plugged in SG A, the correct plugging percentage is 0.16% (as compared to 0.15% reported in Table 6-1). With eight tubes plugged in SG B, the correct plugging percentage is 0.25% (as compared to 0.20% reported in Table 6-1).

Table 6-1 below replaces Table 6-1 in Reference (1).

Table 6-1 Total Tubes Plugged and Plugging Percentage SG A SG B Total Tubes Plugged 5 8 Plugging Percentage 0.16% 0.25%

NextEra Energy Point Beach, LLC,6610 Nuclear Road, Two Rivers, WI 54241

Document Control Desk Page 2 The mathematical errors are small in significance as the total plugging percentage allowed is 10%.

If you have questions or require additional information, please contact Mr. Harv Hanneman at 9201755-7721.

Very truly yours, NextEra Energy Point Beach, LLC Michael Millen Licensing Manager Enclosure cc: Administrator, Region Ill, USNRC Project Manager, Point Beach Nuclear Plant, USNRC Resident Inspector, Point Beach Nuclear Plant, USNRC PSC