ML20154E878

Forwards Insp Rept 50-275/69-05 on 690506-07.Nonconformance Noted.Problems Re Reactor ECCS Piping Appear to Have Been Satisfactorily Resolved

ML20154E878
Person / Time
Site:	Diablo Canyon, 05000000
Issue date:	05/12/1969
From:	Vetter W US ATOMIC ENERGY COMMISSION (AEC)
To:	Spencer G US ATOMIC ENERGY COMMISSION (AEC)
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References
FOIA-88-156 NUDOCS 8805230018
Download: ML20154E878 (2)

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1. 4 2111 BANCROFT WAY BERKELEY, CALlroRNI A 94704 tem, s4taisi Erv. 60i May 12, 1969 C. S. Spencer, Senior Reactor Inspector Region V, Division of Compliance DIABLO CANYON UNIT NO. I, P ACIFIC GAS & ELECTRIC COMPANY e

DOCKET No. 50-275 The Cameron Iron Works (CIW) and the Southwest Fabricating and Uciding Company (SWWCO) both located in Houston, Texas, were visited by me on May 6-7, 1969. The purpose of the visits was to reviev QA-qC programs for the Pacific Gas andElectric Company Diablo Canyon Unit No. I reactor primary piping. A second purpose of the visit was to review problems associated with :he Emergency Core Cooling System (ECCS) piping for the Consumers Power Company Palisades reactor (Section C of this report).

The problems relative to the Palisades reactor ECCS piping appear to have been satisfactorily resolved.

Our review of the QA-QC programs maintained by CIV, SWDJC0 and Westinghouse in conjunction with the Diablo Canyon Unit No I reactor and with reference to PI 3800 indicates that:

1. Both CIW and SWE?CO ruintain vigorous, comprehensive QC programs in the form of "tight" process control program concepts and very close management-staff working contact as opposed to more formal QC programs.

However, we feel that, except for such contingencies

• as relatively long-term loss of key personnel, the process control concept is an adequate QC approach in both plants.

2. Neither CI'; nor SWnico have structured or maintained a formal CA program. CIW decries the need for a formal QA program whereas sniC0 recognizes a potential value and has proposed additional activity in this area.

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3. The PI 3300 licensee-contractor QA criteria have been adequately expedited, by both Westinghouse (Diablo Canyon PG6E) and Bechtcl (Palisades - C?) in the form of purchase specifications , velding instructions ,

forging instructions, QC instructions and audit and review (inspection) programs. Our c nnent in this catter is based partially on a review of documents and records 'aut mostly on com:nents provided by the licensce-contractor and vendor personnel during the visit. 'Je cannot speak f or CP (Region III) but, as you know, PG6E is still in the process of documenting a QA pro;; ram for Com:aiss ton review.

/ P (4W E. yetter Reactor Inspector l

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