ML19246A749
| ML19246A749 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point, Palisades File:Consumers Energy icon.png |
| Issue date: | 06/26/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Dewitt R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 7907060310 | |
| Download: ML19246A749 (1) | |
Text
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UNITED STATES E
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'n NUCLEAR REGULATORY COMMISSION 5 e)-h L $
REGION l11 DC hI'i 8
799 ROOSEVELT ROAD 0,
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GLEN ELLYN, ILLINOlf 00137
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JUN 2 61979 Docket No. 50-155 Docket No. 50-255 Consumers Power Coopany ATTN:
Mr. R. B. DeWitt Manager of fiurlear Plait Operations 212 West Michigan Avenue Jackson, MI 49201 Gentlemen:
This Circular is provided as an early notification of a possibly signif-icant matter.
It is expected that recipients will review the ir. formation 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 this matter, please contact the Director of the appropriate NRC Regicnal Office.
Sincere 5y,
/
- f u-or tJames d. Kepple; Directer
Enclosure:
IE Circular No. 79-10 cc w/ encl:
Mr. C. J. Hartman, Plant Superintendent Mr. J. G. Lewis, Plant Superintendent Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC R nal3 Callen, Michigan Public 00 i 97 Service Commission Anthony Roisman, Esq., Attorney Myron M. Cherry, Chicago 79070603Io
U.S. NUCLEAR REGULATORY COMMISSIOS 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 k'PB.
These high carbon content fittings may crack when welded.
Tube Tums 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 vall elbows and 2"
.237 vall streight tees, ASTM A-234 WPB, were produced by Tube Turns.
Each length of pipe is twenty feet and mskes 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.
Waterford III
- Grand Gulf
- Zimmer
- Fhipps Bend
- Brown's Ferry Midland Limerick Shoreham
- LaSalle Sequoyah 00 198
- Brunswick Bartsville Bellefonte On June 1, 1979, t&
Tube Turns Division reported to the NRC via telephone that of the 160 ffttings 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 peri p h u m N 4 4 m.- _ ? %. m_m _ _ =
and determine if fittings n.anufactured by th J DUPLICATE DOCUMENT identified as Tube Turn Lot W6719.
If shipe a were received, appropriate corrective actionL Entire document previously entered l
into system under:
1%G Kooni roo
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