ML20125E171

Responds to IE Bulletins 78-12,12A & 12B.Util & Westinghouse Have Reviewed De Rotterdamse Droogdok Maatschappij,N.V. Rept, Weld Matl Documentation of Eleven Reactor Pressure Vessels Fabricated by Rdm for Westinghouse

ML20125E171
Person / Time
Site:	Catawba
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
ML20125E173	List: ML20125E171 ML20125E176 ML20125E177
References
IEB-78-12, IEB-78-12A, IEB-78-12B, NUDOCS 8002010241
Download: ML20125E171 (2)

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4aa Sourn Cnuncu STur.i:T. C LAHL.oTT E, N. C. 2e242 wiL L s A u o. pa n sc c n, .s n Vice Patuot *' November 7, 1979 - tctc ~ oac:^ ca voa s e t a = Pmotuctio= 373 4o83 j Mr. J.P. O'Reilly, Director U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, CA 30303

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Re: RII:JPO' 50-413, 50-414 IE 3ulletin Nc. 78-12/12A/12B

Dear Mr. O'Reilly:

Duke Power Company and Westinghouse Electric Corporation have luated the inf o:r.ation contained in the generic report entitled "Wei aterial Documenthtdon of the Eleven Reactor Pressure Vessels Fabricated by RDM

• for Ves tin:; house", compiled by the former D2 Rot terdamse Droogdok Maatschappij,N.V. (RDM) to satisfy the requirtments presented in IE Sulletin Nos. 78-12,78-12A, and 78-12B and have concluded that the veld material data and other required information pertinent to the Ca tawba 'Jnit I reactor vessel are included 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 f abrication of the Catawba Unit I reactor vessel.

This report was submitted to the NRC on October 29, 1979, as evioenced by

tes tinghouse 's transnittal letter, a copy of which. is attached for your information.

j Tor the Catr.:ba Unit I vessel, RDM has no archive material since it does not normally maintain an inventory of excess material. Therefore, Westinghouse i has inventoried archive surveillance weldrent material which may be used for

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l verification purposes. ^ This material consists of f ull thickness weldments i nade up cf the following:

Weld Wire lleat Number 895075 l Flux Iot Number P46 l Flux Type LW320 Weld ' ire Type S3NiMo Ve y truly your ,

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Mr. J. P.'O'Railly, Director Eovember 7,1979 Page Two Weld Wire Heat Number 895075 -

Flux Lot Number P46 Flux Type LW320 Weld Wire Type S3NiMo Ve truly ycurs, ,

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ROS/s ch Attachment ec: Of fice of Inspection and Enforcement Division of Reactor Construction Inspection I

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1. l'I Water Reactof PM SystmMm Westinghouse Electric Corporation Divisiorts  % 353 Ptitcurgh Ptmsylvanta 15230 NS-TMA-2143 October 29, 1979 Mr. Wayne Reinmuth Division of Inspection and Enforcement U.S. Nuclear Regulatory Comission -

3450 East West Highway Bethesda, ijaryland

Dear Mr. Reinmuth:

Enclosed please find ten (10) copies of the report " Weld Material Documentation of the Eleven Reactor Pressure Vessels Fabricated by RDM for Westinghouse" in response to IE Bulletin 78-12.

A complete records search was performed as required by the bulletin for all primary boundary ferritic weld:ents used in the manuf acture of all vessels fabricated by Rotterdam (RCM) for Westinghouse. As a result of this search, no atypical weld material was found. Further, RDM has certified, based on tests made by them on su;; plied materials, that all weld material used in Westinghouse vessels met the applicable acceptance criteria. The fact that information from all sub-suppliers as to reeasures taken with respect to material identification and control at the time of manufacturing is not available at this time does not detract frcm this conclusion.

If you have any questions, please do not hesitate to call .

Ver truly yo irs,

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T. M. Anderson, Manager Nuclear Safety Department

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V6CC PAC 5IDgnet November 7 1979 8 It LEPMO*s C Am t A 704 s TC Ame P#ODUCTsose 373-4083 Mr. J. P. O'Reilly, Director U.S. Nuclear Regulatory Com=ission Region II .

101 Marietta Street, Suite 3100 Atlanta, CA 30303

• Re: RII:JPO 59-369, 50-370 IE Bulletin No. 73-12/12A/12S

Dear Mr. O'Reilly:

Duke Power Company and Westinghouse Electric Corporation have evaluated the information contained in the generic report entitled " Weld Material Documentation of the Eleven Reactor Pressure Vessels Fabricated by RDM for Westinghouse",

compiled by the former De Rotterdzese Droogdok Maatschappij,N.V. (RDM) to satisfy the requirements presented in IE Bulletin Nos. 78-12,78-12A, and 78- 12 B , and have concluded that the veld naterial data and other required information pertinent to the McGuire Unit 2 reactor vessel are included in RDM's report. This generic RD" report includes a certified statement by the vendor to provide further assurance that the subject report addresses -

all of the applicable catcrials used in the fabrication of the McGuire Unit 2 reactor vessel.

This report was submitted to the NRC en October 29, 1979, as evidenced by Westinghouse's transmittal letter, a copy of .chich is attached for your information.

In addition to the data supplied by RDM in the subject report, Westinghouse has developed surveillance veldcent 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 since it does not normally naintain on inventory of excess caterial. Therefore, Westinghouse has inventoried archive surveillance veldment material which cay be used for verification purposes. This caterial consists of full thickness weldments made up of the following:

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.Pm 7ggg P M Sys es0 m n Westinghouse Water Reactor Electric Corporation Divisions e333 PnttughPenn:;yhru 15233 NS-TMA-2143 October 29, 1979 Mr. Wayne Reinmuth Division of Inspection and Enforcement U.S. Nuclear Regulatory Com.ission 3450 East West Higtraay .

Bethesda, Maryland

Dear Mr. Reinmuth:

Enclosed please find ten (10) c: pies of the repcrt " Weld Material Documentation of the Eleven Reactor fressure 7essels Fabricated by RDM for Westinghouse" in response to IE Bulletin 78-12.

A complete records sear:h was pErfor ed as recuired by the bulletin for all primary boundary ferritic weldments used in the manufacture of all vessels fabricated by Rotterdam (RD'i) f:r Westinghouse. As a result of this search, no atypical weld material was f:und. Fur:her, EDM. has certified, based on tests made by them on supplied r.aterials,: hat all welc raterial used in Westinghouse vessels met the applicable acce:tance criteria. The fact that information from all sub-suppliers as ic reasures taken v.ith respect to material identification

'and control at the time of 7.Lfacturing is not available at this time does not detract from this cor.clusicn.

If you have any cuesticas, please do not hesitate to call .

Ver' truly yo rs,

< WW T. M. Anderson, Manager Nuclear Safety Departraent MAH/ keg L cc: W. R. Rutherford p g _

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PWR Systems Divoon Westinghouse Water Reactor Electric Corporation Divisions m353 Pin::urghPem:yNaa15233 NS-TMA-2170

. November 30, 1979 Wayne Reinmuth U.S. Nuclear Regulatory Cormiission Office of Inspection and Enforcement 4350 East West Highway Bethesda, MD

Dear Mr. Reinmuth:

Enclosed please find the Creusot-Loire report in response to IE Bulletin 78-12.

As noted in the report, a complete records search in accordance with the bulletin was conducted and no atypical weld material was found.

This report completes the respcnse for all vessels manufactured for Westinghouse and in no case was unacceptable weld material used in their manufacture.

If you have any questions, please do not hesitate to call.

Ver truly yours, e V, x.

T. M. Anderson, Manager Nuclear Safety Department

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