ML20050D484

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Informs That Conformance to 1974 Code for Evaluation of Surface Exam Results in IWB-3000 Determined to Be Impractical.Util Has Applied Acceptance Criteria Specified in 1977 Edition for Class 1 Components
ML20050D484
Person / Time
Site: Beaver Valley
Issue date: 04/01/1982
From: Carey J
DUQUESNE LIGHT CO.
To: Varga S
Office of Nuclear Reactor Regulation
References
TAC-48517, NUDOCS 8204120250
Download: ML20050D484 (1)


Text

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tr April 1, 1982 Director of Nuclear Reactor Regulation United States thclear Regulatory Commission Attn:

Mr. Steven A. Va rga, Chief Operating Reactors 13 ranch No. 1 Division of Licensing Washington, DC 20555

Reference:

Beaver Valley Power Station, Unit No. 1 Docket No. 50--334, License No. DPR-66 NRC Notification - ASME Section XI Deviation Centlemen:

In the Sa fe ty Evaluat ion Report issued with Amendment 22 to the Technical Specifications, we were provided the capability to utilize the acceptance standards as defined in the 1977 Edition of Section XI for cases where the standards in the 1974 Code, Summer 1975 addenda were in the course of p repa ra t ion.

This was applied to Articles IWC-3000 and IWD-3000 components "Evalua t ion of Examina tion Results".

Since that tine, we have found it necessary to apply the Section XI 1977 Edition (no addenda) in IWB-3000 for Surface Examination acceptance criteria on the Statically and Centrifugally cast reactor coolant piping. This was necessary since the 1974 Edition of Section XI did not specify acceptance criteria appropriate for surface examinations of Class IWB-3000 Components.

In accordance with 10CFR50.55a(g)(5)(if i), we have determined that conformance to the 1974 code for Evaluation of Surf ace Examination Results in IWil 3000 is inpractical; therefore, we have applied the acceptance criteria specified in article IWil-3000 for surface examinations in the 1977 Edition f or Class I components.

Very truly yours, J. J. Carey Vice President, Nuclear cc:

Mr. D. A.

Becknan, Resident Inspector U.

S. t'uc lear Regula tory Commission Beaver Valley Power Station Shippingport, PA 15077 l

i U. S. Nuclear Regula tory Commission c/o Document Manageme n t Branch D

Washington, DC 20555 gQ l

8204120250 020401 I

PDR ADOCK 05000334 l

0 PDR