ML19246A744
| ML19246A744 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Byron, Braidwood, Quad Cities, Zion, LaSalle  |
| Issue date: | 06/26/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Brian Lee COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 7907060303 | |
| Download: ML19246A744 (1) | |
Text
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UNITED STATES a
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7/[,j NUCLEAR REGULATORY COMMISSION cTC
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c REGION til o, 4 f
799 ROOSEVELT ROAD
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g" GLEN ELLYN, ILLINOIS 60137
-. g; JUN 2 61979 Docket Nos. 50-10, 50-237, 50-249, 50-254, 50-265, 50-295, 50-304, 50-373, 50-374, 50-454, 50-455, 50-456 and 50-457 Commonwealth Edison Company ATTN:
Mr. Byron Lee, Jr.
Vice President Post Office Box 767 Chicago, IL 60690 Gentlemen:
'Ihis 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 this matter, please contact the Director of the appropriate hTC Regional Office.
Sincerely, EL 6M I
C tJames G. Keppler
/,
Director
Enclosure:
IE Circular No. 79-10 cc w/ encl:
Mr. B. B. Stephenson, Mr. R. Cosaro, Project Station Superintendent Superintendent Mr. N. Kalivianakis, Central Files Station Superintendent Director, NRR/DPM Mr. N. Waadke, Station Director, NRR/ DOR Superiatendent PDR Mr. L. J. Burke, Site Local PDR Project Superintendent NSIC Mr. T. E. Quaka, Quality TIC Assurance Supervisor Anthony Roisman, Esq.,
Mr. R. H. Holyoak, Station Attorney Superintendent Mr. Dean Hansell, Office Mr. Gunner Sorensen, Site of Assistant Attorney Project Superintendent General 300 iI4 7907060303
U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION III e
June 26,1979 IE Circular No. 79-10 (7906200171)
PIPEFITTINGS MANUFACTURED FROM UNACCEPTAELE MATERIAL Description of Circumstances:
Liberty Equipment and Supply Company of Kennewick, Washington and Tu'oe Turns Division, Chemetron Corporation of Lauisville, 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 carben 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 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 identi#ied by Tube Turns Lot No. W6719.
Shipment of these fittings started in March of 1978, and it is estimated ell 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 nutlear 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 imme r
- Phipps Eend
- Waterford III
- Brown's Ferry Midland I,ime rick Shoreham
- LaSalle Sequoyah
- Brunswick Hartsville Bellefonte On June 1,1979, the Tube Turns Division raported to the NRC via telephone that of the 160 fittings tested at "uclear 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 March 1978 to January 1979
" " ' ' " " ~
and determine if fittings manufactured b5
~
identified as Tube Turn Lot W6719.
If shi qllEntiredocumentpreviouslyen DUPLICATE DOCUMENT were received, appropriate corrective acti into system under:
H OG200 Pl/
300 115
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