ML19246A660
| ML19246A660 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/26/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| References | |
| NUDOCS 7907060213 | |
| Download: ML19246A660 (1) | |
Text
!p n e a.,
e
'o UNITED STATES NUCLEAR REGULATORY COMMISSION
,.{ 4
'I b 1 h
[
1930 N. CALIFORNIA BOULEVARD
(;
f SUITE 202, WALNUT CR E E K PLAZ A d
e WALNU T CRE E K, CALIFORNI A 94596 June 26, 1979 Docket flos. 50-528 50-529 50-530 Arizona Public Service Company P. O. Box 21666 Phoenix, Arizona 85036 Attention: Mr. E. E. Van Brunt, Jr.
Vice President, Construction Projects Gentlemen:
This Circular is provided as an early notification of a possibly significant matter.
It is expected that recipients will review the information for possible applicability to their facilities.
fio specific action or response is requested at this time.
If further fiRC evaluations so indicate, an IE Bulletin will be issued to recoranend or request specific licensee actions.
If you have questions regarding this matter, please contact the Director of the appropriate fiRC Regional Office.
Sincerely,
.L#
/C c 1 2-2 yG._
R. H. Engelken Director
Enclosures:
1.
IE Circular No. 79-10 2.
List of IE Circulars Issued in Last 12 Months cc w/ enclosures:
F. W. Hartley, APS 298 215 790796o2,3 P
UNITED STATES NUCLEAR REGULATORY CGPNISSION OFFICE OF INSPECTION AND ENFCRCEMENT WASHINGTON, D.C.
20555 June 26, 1979 IE Circular No. 79-10 (7906200171)
PIPEFITTINGS MANUFACTURED FROM UNACCEFTABLE f!ATEPIAL Description of Circumstances:
Liberty Equipment and Supply Company of Venneuick, Washington and Tube Turns Division, Chemetron Corporation cf Louisville, Kentucky reported on April 4 and 12, 1979, respectively, that potentially defective pipe fittings were manufactured from material with a high carbon content be ond the range allowed j
by ASTM A-234 WPB. These high carbon content fittings may crack when welded.
Tube Turns received 3.500 03 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 rumber 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 nakes from 20 to 30 fittings.
Aoproxirately 27,000 fittings were produced and each is identified by Tube Turns Lot No. W6719.
Shipr.ent of these fittings started in March of 1978, and it is ee^icated all were shipped before the end of 197E.
On May 10, 1979, the Tube Turns Division reported to the NRC that 4" elbows, Lot ',>6719, have been provided to the nuclear pov r olants listed below.
U.S.
Steel has tested about one hundred and fifty (150) loose and installed fittings at the seven sites r:oted by an asterisk.
- Grand Gulf
- Zimmer
- Phipps Send
- 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 period from " arch 1978 to January 1979 and determine if fittings nanufactured by the Tube Turn Division can be identified as Tube Turn Lot U6719.
If shipment of the defective material _ lot ___ _ _ _
were received, appropriate corrective DUPLICATE DOCUMENT No written response to this circular i inforration regarding this subject, c(
Entire document previously entered NRC Pegional Office.
into system under:
ANO b
No. of pages:
--