ML19209D103

Interim Deficiency Rept Re Embed Assemblies.No Sample Bolts Failed Pull Test.Final Rept Will Be Submitted by 791115

ML19209D103
Person / Time
Site:	Vogtle
Issue date:	10/08/1979
From:	Dutton D GEORGIA POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
X7BGO3, NUDOCS 7910190407
Download: ML19209D103 (2)

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Georga Power Corroany Post Office Box 4545 Atlanta, Georps 303o2 L

Telephone 404 522-606o 79 0 9 A10 37 Vogtle Project Southem Company Sennces, Inc.

Post Office Box 2625 Birmngham, Alabama 35202 Telephone 205 870-6on October 8, 1979 United States Nuclear Regulatory Commission

REFERENCE:

Office of Inspection and Enforcement 50-424 Region II - Suite 3100 50-425 101 Marietta Street, N.W. File: X7BG03 Atlanta, GA 30303 . Log: GM-509

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Attn: Mr. James P. O'Reilly Gentlemen:

In the letter dated July 31, 1979 on the embed assemblies for the Vogtle Nuclear Plant - Units 1 & 2, Georgia Power Company indicated an interim report would be submitted by October 1, 1979. Since our last report a sample of bolts in the embeds have been subjected to pull tests. No sample bolt failed the pull test. Based upon analysis of the test data, and by calculations accordir.g to ASTM E-122-72 " Standard Recommended Practice for Claim of Sample Size to Estimate the Average Quality of a Lot or Process," a high confidence level can be exhibited for the remaining bolts in the embeds.

The above test data will allow the completion of the potential signi-ficant deficiency analysis. Georgia Power Company will submit a final report on this subject to the NRC no later than November 15, 1979.

Very truly aurs, 1 Q -

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DougDutto(n Project General Manager 3

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xc: U. S. Nuclear Regulatory Commission Attn: John G. Davis, Acting Director

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Office of Inspection and Enforcement Washington, DC 20555 M. D. Hunt, NRC Region II e

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United States Nuclear Regulatory Commission GM-509 October 8, 1979 Page 2 xc: J. H. Miller, Jr.

F. G. Mitchell, Jr.

R. J. Kelly C. F. Whitmer R. E. Conway D. E. Dutton J. T. Beckham, Jr.

R. W. Staffa K. fl. Gillespie L. T. Gucwa C. R. Miles, Jr.

E. D. Groover

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D. L. McCrary *

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0. Batum J. A. Bailey H. Z. Jeric B. L. Lex

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