ML19224C970
| ML19224C970 | |
| Person / Time | |
|---|---|
| Site: | Sterling |
| Issue date: | 06/26/1979 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Arthur J ROCHESTER GAS & ELECTRIC CORP. |
| References | |
| NUDOCS 7907100373 | |
| Download: ML19224C970 (1) | |
Text
A pn "E c o
d
'o UNITED STATES
[T n rg/ j NUCLEAR REGULATORY COMMISSION G,; g'$, j REGION I O,
- 4 ph 17 2 G31 PARK AVENUE
'N 6" KING OF PRUSSIA, PENNSYLVANI A 19406 June 26, 1979 Docket No. 50-485 Rochester Gas & Electric Cornoration ATTN:
Mr.
- 1. E. Arthur Chief Engineer 89 East Avenue Rochester, New York 14649 Gentlemen:
The enclosed IE Circular 79-10 is provided as an early notification of a possibly significant matter.
It is expected that recipients,'M1 review the information for possible applicability to their facili'.ies.
No specific action or response is requested at this time.
If further NRC evaluations so indicate, an IE Bulletin will be issued to recommend or request specific licensee actians.
If you have questions regarding this matter, please contact this office.
Sincerely, M//'lY hl2 -
yce H. Grier g ector
Enclosures:
1.
IE Circular No. 79-10 2.
List of IE Circulars Issued in Last Twelve Months cc w/encls:
C. R. Anderson, Manager, QA Lex K. Larson, Esquire N. A. Petrick, Executive Director, SNUPPS Gerald Charnoff, Esquire
'l C,3,
} } C) Je 7907100373
ENCLOSURE 1 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Circular No. 79-10 Date:
June 26, 1979 Page 1 of 2 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, 1979, respectively, that potentially defective pipe fit +i'1gs were manufactured from material with a high carbon content beycnd 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. N5700'8.
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. W6713.
Shipmeat 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) laose and installed fittings at the seven sites noted by an asterisk.
- Grand Gulf
- Zimmer
- Phipps Bend
- Waterford III
- Brown's Ferry Midland Limerick Shoreham
- LaSalle Sequoyah
- Brunswick Hartsville Bellefonte On June 1, 1979, the Tube Turns Division repcrted to the NRC via telephone that of the-160 fittings tested at Nuclear Power Plants, three (3) pieces were found to hat /e a high carbon content and were replaced.
" ^ i 3 l 5 K f. 2 All construction permit holders are advish-
' -^
^#
pipefitting receiving documents for the p' DUPLICATE DOCUMENT and determine if fittings manufactured by identified as Tube Turn Lot W6719.
If sh were received, apprcpriate corrective act Entire document previously entered into system under:
]%
b ANO No. of pages:
l m..
.a.
-L
~.. i...
.