ML19246A752
| ML19246A752 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 06/26/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Gerstner W ILLINOIS POWER CO. |
| References | |
| NUDOCS 7907060314 | |
| Download: ML19246A752 (1) | |
Text
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UNITED ST ATES
,g NUCLE AR REGULATORY COMMISSION f5T{h
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REGION lli
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799 ROOSEVELT ROAD e
GLEN E LLYN, ILLINOIS 60137 6
,o JUN 2 61979 TEPA )
Docket No. 50-461
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Docket No. 50-462 Illinois Power Company ATTN:
Mr. W. C. Gerstner Executive Vice President 500 South 2'th Street Decatur, IL 62525 GhtAlemen:
This Circu!ar is provided as an early notification of a poscibly signif-icant matter.
It is expected that recipients will review the information for possible applicability to their facilities.
To specific action or response is requested at this time.
further ERC evaluations so indi-cate, an IE Bulletin will be issued to recorrc.c.d or request specific licensee actions.
If you have questions regarding this matter, please contact the Director of the appropriate NRC Regional Office.
Sincerely, dw 0 Mf James G. Keppler Director
Enclosure:
IE Circular No. 79-10 cc w/ enc 1:
Central Files Director, NRR/DPM Director, NRR/ DOR PCR j
iS; 300 205 TIC Mr. Dean Hansell, Office of Assistant Attorney General 7907060374
U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION III r
June 26, 1979 IE Circular No. 79-10 (7906200171)
PIPEFITTINGS MANUFACTUPID FROM UNACCEPTABLE MATERIAL Description of Circumstances:
Liberty Equipment and Supply Company of Kennewick, Washington and Tr.be Turns Division, Chemetron Corporation of Louisville, Kentucky reported on April 4 and 12, 1972, respectively, that potentially defective pipe fittings were ranufactured from material with a high carbon content beyond the range allowed by ASTM A-234 WPB.
These high carbon content fittings msy crack when welded.
Tube Turns received 3.500 OD x.250W pipe from U. S. Steel - Lorain -
identified as U. S. Steel Heat No. N570028. A total of 28,153 feet was received and identified by Tube Turns as Lot W6719.
U. S. Steel has not been able to determine the exact number of lengths of pipe of incorrect chemistry, but indicated it could be at least four lengths. From this pipe, 4" - 90 degrees and 45 degrees
.237 wall elbows and 2"
.237 vall straight tees, ASTM A-234 WPB, were produced by Tube Turns. Each length of pipe is twenty feet and makes from 20 to 30 fittings. Approximately 27,000 fittings were produced and each is identified by Tube Turns Lot No. W6719.
Shipment of these fittings started in March of 1978, and it is estimated all were shipped before the end of 1978.
On May 10, 1979, the Tube Turns Division reported to the NRC that 4" elbows, Lot W6719, have been provided to the nuclear power plants listed below.
U.S.
Steel has tested about one hundred and fifty (150) loose and installed fittings at the seven sites noted by an asterisk.
- Grand Gulf
- Zimmer
- Phipps Bend
- Waterford III
- Brown's Ferry Midland Limerick Shoreha:
- LaSalle Sequoyah
- Brunswick Hartsville Bellefonte
[J j On June 1, 1979, the Tube Turns Division reported to the NRC via telephone that of the 160 fittings tested at Nuclear Power Plants, three (3) pieces were found to have a high carbon content and were replaced.
All construction permit holders are advised to conduct a review of their pipefitting receiving documents for the period from M gg M 978 en,ipnua g 1070 and determine if fittings manufactured by tb
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identified as Tube Turn Lot W6719.
If shipj DUPLICATE DOCUMENT were received, appropriate corrective actio1(
l Entire document previously entered y into system under:
79062f) 19b ANO No. of pages:
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