SBK-L-08010, Submittal of Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications

Submittal of Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications

ML082180125
Person / Time
Site:	Seabrook
Issue date:	07/31/2008
From:	St.Pierre G Florida Power & Light Energy Seabrook
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
SBK-L-080108
Download: ML082180125 (3)

Text

FPL Energy Seabrook Station FPL Energy P.O. Box 300 Seabrook, NH 03874 Seabrook Station (603) 773-7000 July 31, 2008 Docket No. 50-443 SBK-L-08108 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001 Seabrook Station Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications In accordance with the requirements of 10 CFR 50.46(a)(3)(ii), FPL Energy Seabrook, LLC submits a tabulation of the current Large Break and Small Break LOCA PCT margin utilization tables applicable to Seabrook Station. Compliance with 10 CFR 50.46 requirements is demonstrated by the current composite Large Break LOCA PCT of 1789 'F remaining well below the limit of 2200 'F. The cumulative change in the Large Break LOCA PCT is +5°F from the analysis of record value. The current Small Break LOCA PCT of 1373 'F also remains well below the limit of 2200 'F. There is currently no Small Break LOCA PCT cumulative change.

Should you have any questions regarding this report, please contact Mr. Paul V. Gurney, Reactor Engineering Supervisor, at (603) 773-7776.

Very truly yours, FPL Energy Seabrook, LLC Gene St. Pierre Site Vice President cc: S. J. Collins, NRC Region I Administrator G. E. Miller, NRC Project Manager, Project Directorate 1-2 W. J. Raymond, NRC Senior Resident Inspector 7A o2-an FPL.Group company

ENCLOSURE TO SBK-L-08108 Seabrook SBLOCA and LBLOCA PCTs Peak Clad Cumulative Temperature Change SBLOCA 2006 10 CFR 50.46 Annual Report (Ref. 1) 1373 OF 2007 Assessments 0OF 0 F 2007 10 CFR 50.46 Annual Report 1373 OF 0 OF LBLOCA 2006 10 CFR 50.46 Annual Report (Ref. 1) 1789 OF 5 OF 2007 Assessments 0 OF 0 OF 2007 10 CFR 50.46 Annual Report 1789 OF 5 OF References

1. Letter from Gene St. Pierre to USNRC Document Control Desk, "Seabrook Station Annual Reporting of Changes to, or Errors in Emergency Core Cooling System Models or Applications,"

SBK-L-07103, July 18, 2007.