ML19247A438
| ML19247A438 | |
| Person / Time | |
|---|---|
| Site: | Sterling |
| Issue date: | 07/16/1979 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Arthur J ROCHESTER GAS & ELECTRIC CORP. |
| References | |
| NUDOCS 7907310539 | |
| Download: ML19247A438 (1) | |
Text
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Docket No. 50-485 JUL 161979 Rochester Gas & Electric Corporation ATTN:
Mr. J. E. Arthur Chief Engineer 89 East Avenue Rochester, New York 14649 Gentlemen:
The enclosed IE Circular No. 79-13, is forwarded to you for information.
No written response is required.
If you require additional information regarding this subject, please contact this office.
Sincerely, n
&YK;
[ Director
~
oyce H. Grier V-
Enclosures:
1.
'E Circular No. 79-13 w/ attachments 2.
.ist of IE Circulars Issued in Last 12 Months cc w/encls:
C. R. Anderson, Manager, QA Lex K. Larson, Esquire N. A. Petrick, Executive Director, SNUPIS Gerald Charnoff, Esquire 675015 7 0 07310 53C1
A ENCLOSURE 1 UNITED STATES NUCLEAR REGULATORY COMMISSION CFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Circular No. 79-13 Date:
July 16, 1979 Page 1 of 1 REPLACEMENT OF DIESEL FIRE PUMP STARTING CONTAC.0RS Description of Circumstances:
On May 28, 1978, the Diesel Fire Pump failed to start remotely at Davis 8 esse, Unit 1 facility operated by Toledo Edison Company.
The cause for failure was defective starting contactors.
A subsequent investigation into the cause of a similar failure on January 18, 1978, at Commonwealth Edison Company's Dresden 2/3 Diesel Fire Pump identified a generic problem with Cummins Industrial Fire Pump Engines.
Discussion:
The investigation revealed that Cummins Engine Company issued a Service / Parts Topics No. 74T 133A announcing new components available for Industrial Fire Pumps (NH2201F, N855F, N855F1, NT855F2 series engines) to improve operation of inline 6 cylinder Industrial Fire Pump Engines.
In this topic, Cummins recom-mends that when replacing the 118848 magnetic switch and 199573 DC relay contacto., use the new 217588 magnetic switch.
Tne new design component has a 6 ampere draw whereas the ald combination has approximately 3 amperes draw.
Davis Besse and Dresden sites have implemented the corrective action recommended by Cummins.
Recommended Actions for Licensees' Conside"ation:
All holders of operating licenses or construction permits should be aware of the potential problem of the type discussed above.
Because of the generic implications in this matter, it is recommended that both licensees of operating facilities and holders of construction permits conduct a review to determine if the above diesel fire pump engines are in use or planned for use at your facility (ies).
If these engines are in use or planned for use, determine if the Cummins type 118848 Magnetic Switch and 199573 DC relay centactors are also employed.
For those engines which have these components, develop a pro-gram for their replacement with the n<w 217588 Magnetic Switch.
No written response to this Circular is required.
If you require additional information regarding these matters, contact the Director of the appropriate NRC Regional Office.
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DUPLICATE DOCUMENT Attachments:
.i CUMMINS Service / Parts Topics Entire document previously entered No. 74 T 133A into system under:
ANO 7907/90 No. of pages:
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1 71
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