ML20198C498
| ML20198C498 | |
| Person / Time | |
|---|---|
| Site: | Perry, Catawba, Harris, Grand Gulf, River Bend, Vogtle, San Onofre, Comanche Peak, Rancho Seco, Midland, Bellefonte, 05000000, Washington Public Power Supply System, Shoreham, Hartsville |
| Issue date: | 11/06/1985 |
| From: | Guntrum B TRANSAMERICA DELAVAL, INC. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| REF-PT21-85-448-000 PT21-85-448-000, NUDOCS 8511120103 | |
| Download: ML20198C498 (5) | |
Text
Trinsam;ric3 Delvd Inc.
89881D8fl08 engin2 cnd compru or Division gg
$50 85th Av: nut P.O. Box 2161 3ll ljg Oakland, California 94621 (415) 577 7400 Novmber 6,1985 Director, Office of Inspection and Enforcanent U.S. Nuclear Regulatory Conmission Washington, D.C.
20555
Dear Sir:
In accordance with the requirenents of Title 10, Chapter 10, Code of Federal Regulations, Part 21, Transamerica Delaval Inc., hereby notifies the Cmmission of a potential defect in a component of a DSR or DSRV Standby Diesel Generator.
'Ihere exists a potential problan with the engine's intake and exhaust valve springs which could result in engine non-availability.
Transamerica Delaval has supplied the DSR and DSRV engines with this potential defect to the following sites:
Utility Site Serial No.
Model Iong Island Lighting Shoreham 74010-12 DSR 48 Middle South Energy Grand Gulf 74033-36 DSRV 16-4 Gulf States Utilities River Bend 74039-40 DSR 48 Carolina Power Shearon Harris 74046-49 DSRV 16-4 Duke Power Catawba 75017/20 DSRV 16-4 Southern California Edison San Onofre 75041-42 DSRV 20-4 Cleveland Electric Illuminating Perry 75051-54 DSRV 16-4
'IVA Bellefonte 75080-83 DSRV 16-4 Washington Public Power WPPSS 1 75084-85 DSRV 16-4 Texas Utilities Serv. Camunche Peak 76001-04 DSRV 16-4 Washington Public Power WPPSS 4 76031-32 DSRV 16-4 Georgia Power Vogtle 76021/24 DSRV 16-4 Consumers Power Midland 77001/04 DSRV 12-4 TVA Hartsville 77024/35 DSRV 16-4 SEUD Rancho Seco 81015/16 DSR 48 l
'Ihe valve springs are manufactured by Betts Spring Company, San Irandro, California. They are installed on the engine cylinder i
head assmbly (4 per cylinder head) by Transamerica Delaval or provided as spare parts.
8511120 103 gg/?
i
Transamenca Delaval El' 'IE Novmber 6,1985 Page 2 Director, Office of Inspection and Enforcement U.S. Nuclear Regulatory Cmmission We have recently experienced isolated failures of this spring in cocmercial applications. In June of 1984, one spring failed in a 16 cylinder engine used for ship propulsion, and in October 1985 eleven springs failed in a second ship.
'Ihe eleven springs all failed within a short time following a Coast Guard required over-speed test. We have not determined the causal relationship betwe m the two events.
While our investigation continues, preliminary indications reveal impurities on the wire coupled with draw marks from the manufacturing process and subsequent incmplete shot peening. Additionally, all springs failed after an extensive operating period (approximately 5,000 to 7,000 operating hours).
During our investigation we recmmend all users inspect their engines for broken springs and to identify the original manufacturer.
'Ihis identification is made by the color of stripe painted on the spring; the Betts spring has a white stripe.
Our investigation of this problem is proceeding on a high priority basis. To assist in this process we request all users report the results of their inspection within thirty (30) days of this notification. We will keep the Cmmission and engine users appraised of the progress of our investigation.
A copy of this letter will be sent to all of the sites referenced in paragraph 2 of this letter as indicated by the carbon copy list.
Our evaluation of this potential problem was empleted on Novmber 4, 1985.
Very t g yours, j
i
'h kS B. C. IGuntrun Manager, Quality Assurance BCG:hw Enclosure
Transamenca Delaval 4E Page Date U.S. Nuclear Regulatory Cccmission CC:
Long Island Lighting Co.
Shoreham Nuclear Power Station North Country Rd.
Wading River, New York 11791 Attention: Mr. M. H. Milligan Pmject Engineer Middle so. Energy - Grand Gulf P.O. Box 1640 Jackson, Mississippi 39205 Attention: Mr. J. B. Richard Sr. Vice-Pres. Nuclear Production Gulf States Utilities Co.
Stone & Webster Eng. Co.
Cherry Hill Operations Center 3 Executive Ca:: pus P.O. Box 5200 Cherry Hill, New Jersey 08034 Attention: Project Manager (J.O. No. 12210)
Gulf States Project Carolina Power & Light Co.
Shearon Harris Nuclear Plants P.O. No. 101 New Hill, North Carolina 27662 Attention: Mr. R. M. Parsons Project, General Manager Duke Power - Catawba Mill Power Supply Co.
P.O. Box 32307 Charlotte, North Carolina 28232 Attention:
W. T. Robertson, President
Transamenca Delaval un2E li Page Date U. S. Nuclear Regulatory Cocmission CC: (continued)
Southern California Edison P.O. Box 800 Rosmead, Calif. 91770 Attention:
O. A.
Fbnager Cleveland Electric Illum. Co.
c/o Perry Nuclear Power Plant P.O. Box 97 Perry, Ohio 44081 Attention: Mr. C. M. Shuster, Manager Nuclear Quality Assurance (IVA - Bellefonte)
Mr. C. A. Chandley Tennessee Valley Authority W7Cl26, 400 IJest Sunmit Hill Dr.
Knaxville, Tenn. 37902 Attention: Mr. I. L. Beltz Mr. G. K. Dyekman, Acting Assistant Program Director - Engineering (899)
Washington Public Powar Supply System Post Office Box 460 Richland, Wash. 99352 (call Vince Dilworth for i that will go with 10CFR21)
Texas Utilities Services Inc.
P.O. Box 2300 Glen Rose, Texas 76043 Attention: Mr. J. T. Merritt, Jr.
Engineering & Construction Mgr.
Georgia Power Bechtel Power Corp.
Los Angeles Power Div.
P.O. Box 60860, Terminal Annex Bldg.
Ios Angeles, Ca. 90060 Attention: Mr. M. Malcom Project Engineering Mgr.
Transamenca Delaval Page Date U. S. Nuclear Regulatory Cocmission CC: (continued)
Consumers Power Co.
1945 West Parnall Road Jackscn, Michigan 49201 Attention:
J.W. Cook,VicePresidentProjects FRRK OUISIDE ENVE WPE "10CFR21
'1VA Hartsville W 10 D224-400 Connerce Ave.
Knaxville, Tenn. 37902 Attention: Mr. C. A. Chandley Chief, Mech. Eng. Branch Sacramento tinicipal Utility Dist.
L. R. Keilmm Nuclear Engineering Dept., M.S. 32 P.O. Bax 15830 Sacramento, CA 95313 Mr. George Bockhcid, Jr.
Plant Manager Georgia Power Co.
Plant Vogtle P.O. Bax 282 Wayensboro, Georgia 30830 Sacramento tbnicipal Utility Dist.
J. R. Beal Purchasing Department, M.S.
50 P.O. Bax 15830 Sacramento, CA 95813 1