ML19224C633
| ML19224C633 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 06/26/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Burnstein S WISCONSIN ELECTRIC POWER CO. |
| References | |
| NUDOCS 7907060004 | |
| Download: ML19224C633 (1) | |
Text
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Docket No. 50-266 Docket No. 50-301 Wisconsin Electric Power Company ATTN:
Mr. Sol Burstein Executive Vice President Power Plants 231 West Michigan Milwaukee, WI 53201 Gentlemen:
This Circular is provided as an early notification of a possibly signif-icant matter.
It is expected that recipients will review the information for possible applicability to their facilities.
No specific action or response is requested at this time.
If further NRC evaluations so indi-cate, an IE Bulletin will be issued to recommend or request specific licensee actions.
If you have questions regarding th.is matter, please contact the Director of the appropriate NRC Regional Office.
Sincerely,
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Lv
'. James G. Keppler
/ Director
Enclosure:
IE Circular No. 79-10 cc w/ enc 1:
Mr. G. A. Reed, Plant Manager Central Files Director, NRR/DPM Director, NRR/ DOR C. M. Tremmel, ORB /h3R PDR Local PDR NSIC TIC Sandra A. Bast, Lakeshore Citizens for Safe Energy
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION III June 26, 1979 IE Circular No. 79-10 (7906200171)
PIPEFITTINGS MANUFACTURED FROM UNACCEPTABLE MATERIAL Description of Circumstances:
Liberty Equipment and Supply Company of Kennewick, Washington and Tube Turns Division, Chemetron Corporation of Louisville, Kentucky reported on April 4 and 12, 1972, respectively, that potentially defective pipe fittings were manufactured from material with a high carbon content beyond the range allowed by ASTM A-234 WPB.
These high carbon content fittings may 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 wall 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 '.ay 10, 1979, the Tube Turns Division reported to the NRC that 4" elbows, Lac 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
- Z i:::me r
- Phipps Bend
- Waterford III
- Brown's Ferry Midland Limerick Shoreham
- LaSalle Sequoyah
- Brunswick Hartsville Bellefonte 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,adry' fen-f?vdlo7Mn T,sq q _1070 and determine if fittings manufactured identified as Tube Turn Lot W6719.
If DUPLICATE DOCUMENT were received, appropriate corrective a
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