ML20099B136

Notifies That Steam Generators Per BAW-1402 Acceptable for Svc.Corrective Action to Prevent Recurrence of Nonconformance to Be Reviewed During Continuing Insp Program

ML20099B136
Person / Time
Site:	Arkansas Nuclear
Issue date:	04/24/1973
From:	Engelken R US ATOMIC ENERGY COMMISSION (AEC)
To:	Mallay J BABCOCK & WILCOX CO.
Shared Package
ML20099A192	List: IR 05000289/1972007 IR 05000289/1972012 ML20099A190 ML20099A211 ML20099A376 ML20099A567 ML20099A582 ML20099A587 ML20099A615 ML20099B009 ML20099B012 ML20099B125 ML20099B130 ML20099B136 ML20099B140 ML20099B143 ML20099B147 ML20099B215 ML20099B260 ML20100N862 ML20101S345 ML20101S352 ML20101S356 ML20101S360
References
FOIA-96-207 NUDOCS 8004150649
Download: ML20099B136 (2)

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UNITED STATES j

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\\j ATOMIC ENERGY COMMISSION I 'I WAsHmOTON. O.C. 20548

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APR 2 4 a73 j

Babcock & Wilcox Company ATIN:

J. F. Mallay Manager, Licensing

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P. O. Box 1260 Lynchburg, Virginia 24505 i

Centlement This will acknowledge receipt of the additional copies of your report number BAW-1402 dated January 1973, together with copies of your supplemental report dated February 26, l

1973, responding to our letter dated February 7,1973.

We have reviewed these reports and concur that the compari-son of the chemistry of the veld materials with unknown mechanical properties, with known mechanical properties of materials with similar chemistry, provides reasonable assur-ance that the strengths and impact toughness will be within acceptable tolerances under similar conditions. This appears to be further supported by the results of the hard-ness test you performed on a test weld and reported by telephone on April 11, 1973.

On this basis we believe that the steam generators discussed in your report are acceptable for service. We note, however, that these units do not fully conform to the technical require-ments of the ASME Boiler and Pressure Vessel Code Edition and Addenda to which the vessels were designed and constructed.

We understand that you intend to pursue this matter further with the cognizant Code authorities.

Your corrective action to prevent recurrence of this or similar nonconfor=ances will be reviewed during our continuing inspection program.

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i APR :: 4.1973 2-Babcock & Wilcox Company 1

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Your cooperation concerning this matter is approciated.

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Tours truly, i

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Ortsnal siun.a by

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J. G. Kepp&c 1

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( E. Engelken Assistant Director for Construction & Operations i

Directorato of Rogulatory Operationa e

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