ML18039A636

Provides Info on Status of NRR Review of TVA Actions Re USNRC Bulletin 96-03, Potential Plugging of ECCS Strainers by Debris in Boiling Water Reactors, for Plant.Review Expected to Be Completed by Spring 1999

ML18039A636
Person / Time
Site:	Browns Ferry
Issue date:	12/09/1998
From:	Raghavan L NRC (Affiliation Not Assigned)
To:	Scalice J TENNESSEE VALLEY AUTHORITY
References
IEB-96-003, IEB-96-3, TAC-M96136, NUDOCS 9812110203
Download: ML18039A636 (10)

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON> D.C. 20m')001 Decerber 9, 1998 Sp gPo @f4 Mr. A. J. Scalice Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

BROWNS FERRY NUCLEAR PLANT (BFN) UNITS 2 AND3-SCHEDULE EXTENSION FOR COMPLETION OF REQUIRED ACTIONS REGARDING NRC BULLETIN96 (TAC NO. M96136)

Dear Mr. Scalice:

The purpose of this letter is to inform you of the status of our review of your actions relating to the U.S. Nuclear ReguiatoIy Commission (NRC)Bulletin 96-03, "Potential Plugging of Emergency Core Cooling System (ECCS) Strainers by Debris in Boiling Water Reactors" for the Browns Ferry Nuclear Plant (BFN) Units 2 and 3.

By letter dated July 25, 1997, supplemented August 25, 1997, you provided responses for the actions requested in the Bulletin 96-03. You informed the NRC staff that you proposed to:

(1) install upgraded ECCS suction strainers in BFN units 2 and 3, (2) credit containment overpressure in the licensing basis for meeting the ECCS pump net positive suction head (NPSH) requirements and submit a license amendment for the same and (3) implement certain interim compensatory actions.

By letter dated September 22, 1997, the NRC staff accepted deferral of completion of the actions requested by the bulletin until December 31, 1998, or until NRC approval and implementation of the license amendment for incorporating containment overpressure credit in the licensing basis, whichever is first.

By letters dated January 5, 1998, and October 23, 1998, you informed us that you have completed installation of the upgraded ECCS suction strainers in BFN Units 2 and 3, respectively.

By letter dated October 10, 1998, you also submitted your license amendment request for crediting the containment overpressure.

Your license amendment request is currently in the NRC staff's review process.

We recognize that the installed larger suction strainers willimprove the ability of the plant to accommodate debris blockage.

Accordingly, the NRC staff finds the current licensing bases ~

(i.e., without credit for containment overpressure),

and deferring completion of the remaining actions requested by the bulletin, to be acceptable until completion of our review of your license amendment request.

The NRC staff expects to complete its review by spring of 1999.

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A.J. Scalice Ifyou have any questions, please write or call me at (301) 415-1471.

Sincerely L. Raghavan, S nior Project Manager Project Directorate II-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-260 cc: See next page

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Decerber 9, 1998 Mr. A. J. Scalice Ifyou have any questions, please write or call me at (301) 415-1471.

Sincerely, Original signed by:

L. Raghavan, Senior Project Manager Project Directorate II-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No';. 50-260 cc: See next page DISTRIBUTION:

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Sincerely, Original signed by:

L. Raghavan, Senior Project Manager Project Directorate II-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nc 260 cc: See next page DISTRIBUTION:

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i Jh Mr. J. A. Scalice Tennessee Valley Authority BROWNS FERRY NUCLEAR PLANT CC:

Senior Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Jack A. Bailey, Vice President Engineering L Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Karl W. Singer, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 General Counsel Tennessee Valley Authority ET 10H 400 West Summit Hill Drive Knoxville, TN 37902 I

Mr. Raul R. Baron, General Manager Nuclear Assurance Tennessee Valley Authority 5M Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Robert G. Jones, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Mark J. Butzynski, Managar Nuclear Licensing Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. Timothy E. Abney, Manager Licensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL35609 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 61 Forsyth Street, SW., Suite 23T85 Atlanta, GA 30303-3415 Senior Resident Inspector U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant I0833 Shaw Road Athens, AL35611 State Health Officer Alabama Dept. of Public Health 434 Monroe Street Montgomery, AL36130-170I

, Chairman Limestone County Commission 310 West Washington Street Athens, AL 35611

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