ML19282C158
| ML19282C158 | |
| Person / Time | |
|---|---|
| Site: | Atlantic Nuclear Power Plant  |
| Issue date: | 03/12/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Zechella A OFFSHORE POWER SYSTEMS (SUBS. OF WESTINGHOUSE ELECTRI |
| References | |
| NUDOCS 7903210112 | |
| Download: ML19282C158 (1) | |
Text
/ "Gog UNITED STATES 4,
NUCLEAR REGULATORY COMMISSION E
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- E 101 MARIETTA STREET, N W, o, Tgg g
ATLANTA, orORGIA 30303 s, * * * * * /
WA 121979 In Reply Refer To:
RII:JPO 50-437 Offshore Power Systets Attn:
Mr. A. P. Zeche11a, President 8000 Arlington Expresswey P. O. Box E000 Jacksonville, Florida 32211 Genticnen:
Enclosed in IE Bulletin No. 79-03, which requires action by you with regard to your power reactor facility (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, e
gg James P. O'Reilly Director
Enclosures:
1.
2.
List of 1E Bulletins I
1ssued in Last t
Twelve Months f
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1.
7903 21 o I I 2 E
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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 March 12, 1979 IE Bulletin No. 79-03 LONGITUDINAL WELD DEFECTS IN ASME SA-312 TYPE 30h STAINLESS b m L PIPE SPQ0LS MANUFACTURED BY YOUNGSTOWN WELDING AND ENGINEERING COMPANY Description of Circu stances:
27, 1978, the Arizona Public Service Company reported that On September defects had been discovered in longitudinal velds in ASME Section III class 2 pipe supplied for the Palo Verde Nuclear Generating Station (PVNGS). On November 27, 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 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 Pallman by Youngstown Welding and Engineering Company of Youngstown, 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 circu=ferential shop velds. Further radiographic examination of the longitudinal velds revealed rejectable porosity and lack of fusion.
Pullman then perfor=ed ultrasonic eaamination of the full length of the longitudinal velds and discovered indications exceeding the acceptance criteria of ASME Section III. Furtter ultrasonic examination' revealed indications in other piping subasse=olies 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 by 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 were found to contlin ultrasonic indications exceeding those permitted by the ASME Of 65 partially fabricated piping spools, 30 were 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 70031601S8