ML20004F721

Advises That Containment Pressure Boundary Matls Have Been Fabricated in Accordance W/General Design Criterion 51 Info Submitted 810609.Vendor Indicates 1 1/2 Inch Is Most Critical Section Thickness

ML20004F721
Person / Time
Site:	Fermi
Issue date:	06/16/1981
From:	Colbert W DETROIT EDISON CO.
To:	Kintner L Office of Nuclear Reactor Regulation
References
EF2-53-667, NUDOCS 8106220228
Download: ML20004F721 (1)

Text

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/'f ; T Mr. L.L. Kintner Division of Project Management Office of Nuclear Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555

Reference:

Enrico Fermi Atomic Power Plant - Unit 2 NRC Docket No. 50-341

Subject:

GDC 51 Information Transmittal

Dear Mr. Kintner:

Detroit Edison submitted information on June ),

1981, to demon-strate that the containment pressure boundary materials were fabricated in accordance with GDC 51. We then reported the maximum wedge thickness of HPCI valve V8-2194 to be 5%".

How-ever, the vendor has subsequently indicated that, although this is the maximum thickness, 1 " is the most critical section thickness. This information is shown on the dimensional inspec-tion report previously transmitted.

Sincerely, f/

W.F. Colbert Technical Director Fermi 2 Project KH/gs godl u.

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