ML19246A663
| ML19246A663 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/26/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Johari Moore SOUTHERN CALIFORNIA EDISON CO. |
| References | |
| NUDOCS 7907060219 | |
| Download: ML19246A663 (1) | |
Text
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- QQf UNITF.D STATES e
E NUCLEAR REGLLATORY COMMISSION
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..x REGION V
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1990 N. CALIF ORNI A GOULEVARD C;, fx
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SUITE 202, WALNUT CREE K PLAZA
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- e WALNUT CREE X, CALIFORNI A 94596 June 26,1979 Docket flos. 50-361 50-362 50-20E Southern California Edison Company P. O. Box 800 2244 Walnut Grove Avenue Rosemead, California 91770 Attention: Mr. J. B. Moore
" ice President Gentlemen:
This Circular is provided as an early notification of a pcssibly significant matter.
It is expected that recipients will review the information for possible applicability to their facilities. flo specific action or response is requested at this tirre.
If further NRC evaluations so indicate, an IE Bulletin will be issued to recommend or request specific licensee ar.tions.
If you have questions regarding this matter, please contact the Dil ' tor of the appropriate tiRC Regional Office.
Sincerely,
[hi
,d R. H. Engelken Director
Enclosures:
1.
IE Circular fio. 79-10 2.
List of IE Circulars Issued in Last 12 Months cc w/ enclosures:
Db. ]6 J. T. Head, SCE J. M. Curran, SCE J. H. Drake, SCE 0706070 79
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UtlITED STATES fiUCLEAR REGULATORY CordISSION OFFICE OF IflSPECTION AND EflFORCEMEt1T WASHINGT0tl, D.C.
20555 June 26, 1979 IE Circular f;o. 79-10 (7905200171)
PIPEFITTINGS MANUFACTUND FROM UNACCEPTABLE MATERI AL Description of Circunstances:
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 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 f!o. 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 pice of incorrect chemistry, but indicated it could be at least four lengths.
Fron this pipe, 4" - 90 Agrees and 45 degrees
.237 wall elbows aM 2"
.237 wall straight tees, ASTM A-234 WPB, were produced by Tube Turns.
Each 1 mth of pipe is twenty feet and nakes from 20 to 30 fittings.
Approximately 27,000 fittings were produced and each is identified by Tube Turns Lot i'o. 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 olants listed belcu.
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 3end
- Uaterford III
- Brown's Ferry Midland Limerick Shoreham
- LaSalle Sequoyah
- Brunswick Partsville Bellefonte On June 1, 1979, the Tube Turns Division reported to the NRC via telephone that of the 160 fittings tested at liuclear Power Plants, three (3) pieces were found to have a high carbon content and were replaced.
All construction pernit holders are advised te conduct a review of their pipefitting receiving documents for the period from " arch 1978 to January 1979 and deternine if fittings nanufactured by the Tube Turn Division can be identified as Tube Turn Lot W6719.
If shipment of the defective meterial lot were received, appropriate carrective action should be initiated.
No written response to this circular is required.
If you require additional infornation regarding this subject, contact the Director of the appropriate NRC Regional Office.
2R 247 7907020171
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IE Circular No. 79-10 Enclosure June 26, 1979 Page 1 of 2 LISTING OF IE CIRCULARS ISSUED IN LAST TWELVE MONTHS Circular Subject Date Issued To No.
of Issue 78-12 HPCI Turbine Control 6/30/78 All Holders of
\\alve Lift Rod Bending BWR OLs or cps for plants with HPCI Terry Turbine 78-13 Inoperability of Multiple 7/10/78 All holders of Service Water Pumps Reactor OLs and cps except for plants located in: AL, AK, CA, FL, GA, LA, MS, SC 78-14 HPCI Turbine Reversing 7/12/78 All Holders of BilR Chamber Hold Dev,l. Bol ting OLs or cps for plants with a HPCI Terry Turbine excepting Duane Arnold and Monticello 78-15 Checkvalves Fail to 7/20/78 All Holders of Close In Vertical Reactor OLs or cps Posi tion 78-16 Limitorque Valve 7/26/78 All Holders of Actuators Reactor OLs or cps 78-1/
Inadequate Guard Training /
10/13/78 All Holders of Qualification and Falsified and applicants Training Records for Reactor OLs 78-18 UL Fire Test 11/6/78 All Holders of Reactor OLs or cps 78-19 Manual Override (Bypass) 12/28/78 All Holders of of Safety Actuation Signals cps 2'90
o IE Circular No. 79-10 Enclosure June 26, 1979 Page 2 of 2 LISTING OF IE CIRCULARS ISSUED IN LAST TWELVE MONTHS Circular Subject Date of Issued to No.
Issue 79-01 Administration of 1/12/79 All Holders of Unauthorized Byproduct Licensees except Material to Humans Teletherapy Medical Licensees and each Radiopharmaceutical Suppliers 79-02 Failare of 120 Volt Vital 2/16/79 All Holders of AC Power Supplies Reactor OLs and cps 79-03 Inadequate Guard Training-2/23/79 All Holders of Qualification and Falsified and applicants Training Records for Special Nuclear Material Licenses in Safeguards Group I 79-04 Loose Locking Nut On 3/16/79 All Holders of Lini torque Valve Reactor OLs or cps Operators 79-05 Moisture Leakage In 3/20/79 Ali Holders of Stranded Wire Conductors Reactor OLs or cps 79-06 Failure to Use Syringe 4/19/79 All Holders of and Battle Shields in Medical Licensees Nuclear Medicine except teletherapy licensees 79-07 Unexpected Speed Increase 5/2/79 All Holders of of Reactor Recirculation BWR OL's or CP's MG Set Resulted in Reactor Power Increase 79-08 Attempted Extortion - Low 5/18/79 All Fuel Facilities Enriched Uraniua Licensed by HRC 79-09 Occurrences of Split or 6/22/79 All Materials Punctured Regulator Diaphragas Priority I, Fuel In Certain Self Contained Cycle and Operating Breathing Apparatus Reactor Licensees 298 249