ML19282C178
| ML19282C178 | |
| Person / Time | |
|---|---|
| Site: | Hatch, Vogtle  |
| Issue date: | 03/12/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | John Miller GEORGIA POWER CO. |
| References | |
| NUDOCS 7903210142 | |
| Download: ML19282C178 (1) | |
Text
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UNITED STATES p amieu NUCLEAR REGULATORY COMMIS$lON y
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REGION il
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g 101 M ARIETT A STREET,N.W.
2 ATLANTA, GEORGI A 30303
%...,. j MAR 121979 In Reply Refer To:
RII:JPO 50-321, 50-366 50-424, 50-425 Georgia Power Company Attn:
Mr. J. H. Miller, Jr.
Executive Vice President 270 Peachtree Street, N. W.
Atlanta, Gerrgia 30303 Gentlemen:
Enclosed is IE Bulletin No. 79-03, which requires action by you with regard to your power reactor f acility(ies) with an operating license or a construction permit.
Should you have any questions regarding this Bulletin or the actions required by you, please contact this office.
Sincerely,
~n MV Q James P. O'Reilly Director Enclosuras:
1.
List of IE Bulletins Issued in Last TVelve Months 7903210142
MAR 121979 Georgia Power Company cc w/ encl:
K. M. Gillespie Construction Project Manager Plant E. I. Hatch P. O. Box 439 Baxley, Georgia 31513 H. Manry, Plant Managar Plant E. I. Hatch P. O. Box 442 Baxley, Georgia 31513 E. D. Groover QA Site Supervisor Vogtle Nuclear Plant P. O. Box 282 Waynesboro, Georgia 30830
UNITED STATES NUCLEAR REGULATORY COINISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
E0555 March 12, 1979 IE Bulletin No. 79-03 LONGITUDINAL WELD DEFECTS IN ASME SA-312 TYPE 304 STAINLESS STEEL PIPE SPOOLS MANUFACTURED BY YOUNGSTOWN WELDING AND ENGINEERING COMPANY Description of Circumstances:
27, 2978, the Arizona Public Service Company reported that On September defects had been discovered in longitudinal velds in ASIE Section III class 2 pipe supplied for the Palo Verde Nuclear Generating Station (PVNGS). On November 27, 1978, the Southern California Edison Co=pany reported similar defects in pipe supplied for the San Onofre Nuclear Generating Station, Units 2 and 3.
Pullman Power Products of Los Angeles, California supplies safety-related fabricated piping spools of various diameters for the PVNGS.
The defects were discovered by Pullman in ASME SA-312 type 30h stainless steel pipe supplied to Pullman by Youngstown Welding and Engineering Company of Youngstcvn, Ohio. The pipe is manufactured by rolling plate into cylinders and then fusion velding the longitudinal seam without filler metal.
Pullman discovered defects in the longitudinal velds while radiographing their circumferential shop velds. FurtMr radiographic examination of the longitudinal velds revealed rejectable porosity and lack of fusion.
Pullman then performed ultrasonic examination of the full length of the longitudinal velds and discovered indications exceeding the acceptance criteria of ASME Section III. Further ultrasonic examination ~ revealed indications in other piping subassemblies where pipe was supplied by Two indications verified by radiography were identified as Youngstown.
porosity and measured 0.350 inch by 0.125 inch in one case and 0.300 inch ty 0.125 inch in another case in pipe with a nominal vall thickness of 0.375 inch.
The additional examinations revealed that of 103 spools and four pipe supports shipped to PVNGS, kh spools and one pipe support vere found to contain ultrasonic indications exceeding those permitted by the ASME Of 65 partially fabricated piping spools, 30 vere found to be Code.
similarly defective. The acceptance criteria for the pipe supplied by Youngstown includes 100 percent ultrasonic examination of the longitudinal 1 of 3 7903160138
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