ML19323A848

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Advises That First Cores for Byron & Braidwood Units Will Employ Westinghouse Mfg 17X17 Optimized Fuel Assemblies in Place of Westinghouse 17X17 Std Fuel Per Current Fsar.Fsar Amend Will Be Filed During First Quarter 1981
ML19323A848
Person / Time
Site: Byron, Braidwood  Constellation icon.png
Issue date: 04/21/1980
From: Naughton W
COMMONWEALTH EDISON CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
NUDOCS 8005060133
Download: ML19323A848 (2)


Text

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- CommonwIlth Ediso.1

, one first Nabonal Plata. Ch:Cago, Ilhnois Address Reply to Post Office Dox 767 Chicago, Illinois 60690 April 21, 1980 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Byron Station Units 1 and 2 Braidwood Station Units 1 and 2 Proposed FSAR Changes for 17 x 17 Optimized Fuel Assemblies NRC Docket Nos. 50-454, 50-455, 50-456, and 50-457

Dear Mr. Denton:

Please be advised that the first cores for the Byron and Braidwood Units will employ the Westinghouse manufactured 17x17 Optimized Fuel Assemblies (OFA) in place of the Westinghouse 17x17 Standard Fuel now referenced in the Byron and Braidwood FSAR. A description and generic safety analyses utilizing 0FA are documented in the Westinghouse WCAP-9500, Reference Core Report, presently undergoing NRC review.

An FSAR amendment will be filed by Comr.ionwealth Edison during the first quarter of 1981 to reflect the change in fuel design. The amendment will include the following: l l

1. Minor revisions to the comparison table in Section 1.3.
2. Complete replacement of Chapters 4 and 15. These chapters will essentially duplicate the information in l Chapters 4 and 15 o f WCAP 9500. Any differences will be noted.

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3. A revised minimum ECCS containment backpressure will be provided in Section 6.2.1.5.
4. Revision to Chapter 16 to reflect the results of plant specific analyses.

The above changes were discussed at the meeting held in Bethesda on March 14, 1980.

. Commonwealth Edison Mr. Harold R. Denton, Director April 21, 1980 Page 2 Please address any additional questions that you might have concerning this matter to this office.

One (1) signed original and fif ty-nine (59) copies of this letter are provided for your use.

Very truly yours,

.I William F. Naughton Nuclear Licensing Administrator Pressurised Water Reactors I i

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