ML19296A403
| ML19296A403 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 03/12/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Davidson D CLEVELAND ELECTRIC ILLUMINATING CO. |
| References | |
| NUDOCS 7903190546 | |
| Download: ML19296A403 (1) | |
Text
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UNITED STATES J.
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NUCLEAR REGULATORY COMMISSION E
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REGION til 5'.
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r 799 RooSE'iE LT ROAD OLEN E LLYN, ILLINots 60137 MAc. 12.1979
' Docket No. 50-440 Docket No. 50-441 The Cleveland Electric illuminating Company ATTN:
Mr. Dalwyn R. Davidson Vice President - Engineering P. O. Box 5000 Cleveland, OH 44101 Gentlemen:
Enclosed is IE Bulletin No. 79-03, which requires action by you with regard to your power reactor facilities with an operating license or a construction permit.
Should you have any questions regarding this Bulletin or the actions required of you, please contact this office.
Sincerely,.
u [d.
James G. Keppler V Director
Enclosures:
1.
IE Bullet:tn No. 79-03 2.
List of IE Bulletins Issued in Last Twelve Months cc w/encls:
Central Files Director, NRR/DPM Director, NRR/ DOR PDR Iocal PDR NSIC TIC U. Young Park, Power Siting Commission Mr. Daniel D. Wilt, Attorney 7903190 5'/6
E U.S. NUCLEAR REGULATORY COMMISSION n
OFFICE OF INSPECTION AND EhTOPCEMENT
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REGION III 9)'
March 12, 1979 IE Bulletin No. 79-03 14NGITUDINAL WELD DEFECTS IN ASME SA-312 TYPE 304 STAINLESS STEEL FIFE SPOOLS MANUFACTURED BY YOUNGSTOWN WELDING AND ENGINEERING COMPANY Description of Circumstances:
On September 27, 1978, the Arizona Public Service Company reported that defects had been discovered in longitudinal welds in ASME Section III class 2 pipe supplied for the Palo Verde Nuclear Generating Station (PVNGS). On November 17, 1978, the Southern California Edison Company reported similar defects in pipe supplied for the San Onofre Nuclear Generating Station, Units 2 and 3.
Pullman Power Products of Ies Angeles, California supplies safety-related fabricated piping spools of various diameters for the PWGS.
The defects were discovered by Pullman in ASME SA-312 type 304 stainless steel pipe supplied to Pullman by Youngstown Welding and Engineering Company of Youngstown, Ohio. The pipe is manufactured by rolling plate into cylinders and then fusich welding the longitudinal seam without filler metal.
Pullman discovered defects in the longitudinal welds while radiographing their circumferential shop welds. Further radiographic examlaa:icn of the longitudinal velds revealed rejectable por~sity and la:k of f.sf>1.
Pullman then performed ultrasonic examination of the full lengta c1 tse longitudinal welds 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 Youngstown. Two indications verified by radiography were identified as porosity and measured 0.350 inch by 0.125 inch in one case and 0.300 inch by 0.125 inch in another case in pipe with a nominal wall thickness of 0.375 inch.
The additional examfaations revealed that of ft3 spools and four pipe supports shipped tr,PVNGS, 44 spocis and one pipe support were found to contain ultrasonit. indications exceeding those permitted by the ASME Code. Of 65 partMally fabricated piping spools, 30 were found to be similarly defective. The acceptance criteria for the pipe supplied by Youngstown includes 100 percent ultrasonic examination of the longitudinal N
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