ML19282C174
| ML19282C174 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/12/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Stewart W FLORIDA POWER CORP. |
| References | |
| NUDOCS 7903210135 | |
| Download: ML19282C174 (1) | |
Text
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nao UNITED STATES
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CUCLEAR REGULATORY COMMISSION
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g REGION il 101 MARIETTA STREET, N.W.
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ATLAh(A, GEORGIA 30303
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MAR 121979 a
In Reply Refer To:
RII:JPO 50-302 Florida Power Corporation Attn:
Mr. W. P. Stewart, Director Power Production P. O. Box 14042, Mail Stop C-4 St. Petersburg, Florida 33733 Gentlemen:
Enclosed is 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 tha actions required by you, please contact this office.
Sincerely, m
g James P. O'Reilly Director
Enclosures:
1.
List of IE Bulletins issued in Last Twelve Months cc w/ enc 1:
G. P. Beatty, Jr.
Nuclear Plant Manager P. O. Box 1228 Crystal River, Florida 32629 7903210135
UNITED STATES NUCLEAR REGULATORY COEiISSION OFFICE OF INSPECTION AND ENFORCE!ENT WASHINJTON, D.C.
20555 March 12, 1979 IE Bulletin No. 79-03 LONGITUDINAL WELD DEFECTS IN ASME SA-312 TYPE 30h STAINLESS STEEL PIPE 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 velds in ASME Section III class 2 pipe supplied for the Palo Verde Nucler.r Generating Station (PVNGS). On November 17, 1978, the Southern Californb Edison Company reported similar defects in pipe supplied for tne 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 Youngstown, Ohio. The pipe is manufactured by rolling plate into cylinders and then fusion velding the longitudinal seam vithout filler metal.
Pullman discovered defects in the longitudinal velds while radiographing their circumferential shop velds. Further 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 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, kk spoole and one pipe support were found to contain ultrasonic indications exceeding those permitted by the AS!E Code.
Of 65 partially 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 2 of 3 DW6 790310013g