ML20049A224

Responds to IE Bulletins 78-12,78-12A & 78-12B Re Weld Matl Documentation.Info Pertinent to McGuire Unit 2 Reactor Vessel Included in Rdm Rept Which Was Submitted on 791029. Westinghouse Transmittal Ltr Encl

ML20049A224
Person / Time
Site:	McGuire, Mcguire
Issue date:	11/07/1979
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20049A225	List: ML20049A224
References
IEB-78-12, IEB-78-12A, IEB-78-12B, NUDOCS 7912040010
Download: ML20049A224 (2)

Text

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November 7, 1979 V.Ct f**s seosmi Ta ss *=ons. Amta 704

$1ta= #**opvceson 373-4063 Mr. J. P. O'Reilly, Director U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, GA 3,0303 t

Re: RII:JPO ~

l 59-369, 50.-370 IE ; Bulletin No. 79-12/12A/12B

Dear Mr. O'Reilly:

Duke Power Company and Westinghouse Electric Corporation have "cvaluated the f'

information contained in the generic report entitled " Weld Material Documentation l

.of the Eleven Reactor Pressure Vessels Fabricated by RD'd for Westinghouse",

.. compiled by the former De Rotterdamse Droogdok Maatschappij, N.V.

(RDM) to l

satisfy the requirements presented in IE Bulletin Nos. 78-12,78-12A, and 78-123, and have concluded that the veld teaterial data and other required I

i information pertinent to the McGuire Unit 2 reactor vessel arc included l

in RDM's report. This generic RDM report includes a certified statement by the vendor to provide further assurance that the subject report addresses all of the applicable materials used in the fabrication of the McGuire Unit 2 reactor vessel.

• fhis report was submitted to the NRC on October 29, 1979, as evidenced by Westinghouse's transmittal letter, a copy of which is attached for your infor=ation.

In addition to IN data supplied by RDM in the subject report, Westinghouse has developed surveillatne weldsent data for McGuire Unit 2 which are con-tained in WCAP-9489, dated May, 1979.

For the McGuire Unit 2 vessel, RDM has no archive material etnce it does l

not normally maintain on inventory of excess material. Therefore, Westinghouse has inventoried archive surveillance veldment material which may be used for verification purposes. This material consists of fh11 thickness veldnents made up of the following:

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,g'y Mr. J. P. O'Reilly, Director November 7, 1979

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Veld Wire Heat Number 895075 Flux Lot Number P46 Flux Type LW320 Veld Wire Type S3NiMo Vc f truly yours, l

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William O. Parker, Jr.

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• Attachment cc: Office of Inspection and Enforcement Division of Reactor Construction Inspection f

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