ML20055E881

Notice of Withdrawal of 880302 Application for Amends to Licenses NPF-37,NPF-66,NPF-72 & NPF-77.Amends Reduced Containment Tendon Design Stresses to Incorporate Addl Design Margin Not Reflected in Values of Current Tech Specs

ML20055E881
Person / Time
Site:	Byron, Braidwood
Issue date:	06/27/1990
From:	Sands S Office of Nuclear Reactor Regulation
To:
Shared Package
ML20055E880	List: ML20055E879 ML20055E881
References
NUDOCS 9007130047
Download: ML20055E881 (2)

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UNITED STATES NUCLEAR REGULATORY COMMISSION COMMONWEALTH EDISON COMPANY -

DOCKET NOS. STN 50-454, STN 50-455 STN 50-456, AND STN 50-457

,e> NOTICE OF WITHDRAWAL OF APPLICATION FOR AMENDMENTS TO  !

FACILITY OPERATING LICENSES The United States Nuclear Regulatory Comission (the Commission) has

approved the withdrawal of an amendment application dated March 2, 1988, filed L by Commonwealth Edison Company (CECO), the licensee. The application requested ,

e amendments to Facility Operating License Nos. NPF-37 and NPF-66, issued to the 1 >

licensee for operation of Byron Station, Units 1 and 2, loceted in Ogle County, Illinois, and Facility Operating License Nos. NPF-72 and NPF-77, issued to the licensee for operation of Braidwood Station, Units 1 and 2, located in Will

! County, Illinois. ,

I The proposed amendments would have reduced the containment tendon design stresses to incorporate additional design margin not reflected in the

• 1 values currently included in the Byron and Braidwood Technical Specifications. ,

The Commission issued a " Notice of Consideration of Issuance of Amendment to Facility Operating License and Opportunity for Hearing" on March 25, 1988 (53FR9830).

By letter dated May 31, 1990, the licensee withdrew the application for the proposed amendments after the NRC staff evaluated the initial submittal and determined that a significant number of tendon stress surveillances would be needed over a number of years in order to assess the actual rate of relaxation of tendon strength and determine that the tendon forces will not decrease below l

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1 s 2- l their design forces during plant life. The Comission has considered the i licensee's request and has detcrmined that permission to withdraw the March 2, i 1988 application for amendment should be granted.

Forfurtherdetailswithrespecttothisaction,see(1)theapplication for amendments dated March 2,1988, and (2) the staff's letter dated June 27, )

1990.

These documents are available for public inspection at the Commission's Public Document Room, the Gelman Building, 2120 L Street, N.W., Washington, D.C., and at the local public document rooms located at the Byron Public Library,109 N. Franklin, P. O. Box 434, Byron, Illinois 61010, and the Wilmington Township Public Library, 201 S. Kankakee Street, Wilmington, Illinois 60481, for Byron and Braidwood, respectively.

Dated at Rockville, Maryland, this 27th day of June,1990.

FOR THE NUCLEAR REGULATORY COMMISSION i 6 .

Steph P. Sands, Project Manager Project Directorate III-2 l

Division of Reactor Projects - III, l IV, Y and Special Projects .

Office of Nuclear Reactor Regulation l

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