ML20207Q047

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Forwards Results,Per Sser 4 Confirmatory Item 6,of Samples Removed from Base of Diesel Engines to Determine If Class 40 Gray Iron Free of Widmanstaetten Graphite Microstructure. Results Indicate Base Free of Microstructure
ML20207Q047
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 01/13/1987
From: Bailey J
GEORGIA POWER CO., SOUTHERN COMPANY SERVICES, INC.
To: Youngblood B
Office of Nuclear Reactor Regulation
References
GN-1321, NUDOCS 8701210240
Download: ML20207Q047 (1)


Text

Georgia Power Company Pcat Offc0 Box 282 Waynesbora Georgia 3C230 Telephone 404 554 9961 404 7244114 Southern Company Services, Inc.

Post Office Box 2625 Birmingham, Alabama 3S202 Telephone 205 8704011 VOgtle Project January 13, 1987 Director of Nuclear Reactor Regulation File X3BL01 Attention:

Mr. B. J. Youngblood Log:

GN-1321 PWR Project Directorate #4 Division of PWR Licensing A U. S. Nuclear Regulatory Commission Washington, D.C.

20555 NRC DOCKET NUMBERS 50-424 AND 50-425 CONSTRUCTION PERMIT NUMBERS CPPR-108 AND CPPR-109 V0GTLE ELECTRIC GENERATING PLANT - UNITS 1 AND 2 CONFIRMATORY ITEM 36: - TDI DIESEL GENERATORS

Dear Mr. Denton:

As requested by Vogtle SER Supplement 4, Georgia Power Company has removed samples from the base of the diesel engines. The samples were sent to the owner's group for analysis to determine if the class 40 gray iron is free of Widmanstaetten graphite microstructure which increases the potential ~for developing cracks. The results of the analysis indicate that the Vogtle engine base does not exhibit this degenerate Widmanstaetten graphite microstructure.

If you require additional information, please do not hesitate to call.

Sincerely, J. A. Bailey Project Licensing Manager l

JAB /ddd l

xc:

R. A. Thomas NRC Regional Administrator J. A. Bailey NRC Resident Inspector J. E. Joiner, Esquire D. Feig B. W. Churchill, Esquire R. W. McManus M. A. Miller (2)

L. T. Gucwa B. Jones, Esquire Vogtle Project File G. Bockhold, Jr.

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8701210240 870113 PJR ADOCK 05000424 E

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