ML19242A160
| ML19242A160 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 07/13/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Borgmann E CINCINNATI GAS & ELECTRIC CO. |
| References | |
| NUDOCS 7907310405 | |
| Download: ML19242A160 (1) | |
Text
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UNITED ST ATES
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799 ROOSEVELT ROAD
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GLEN ELLYN, ILLINOIS 60137
. JUL 131979 Docket No. 50-358 Cincinnati Gas and Electric Company ATTN:
Mr. Earl A. Borgmann Vice President Engineering Services and Electric Production 139 East 4th Street Cincinnati, OH 45201 Gentlemen:
The enclosed IE Circular No. 79-13, is forwarded to you for infor-mation. No written response is required.
Should you have any questions related to your understanding of this matter, please contact this office.
Sincerely, cif wer -'
James G. Keppler k Director
Enclosure:
IE Circular No. 79-13 cc w/ encl:
Mr. J. R. Schott, Plant Superintendent Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC j
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TIC Harold W. Kohn, Power Siting Commission Citizens Against a Radioactive
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Environment Helen W. E.ans, State of Ohio l' s i
7907310fC' [
U.S. NUCLEAR REGULATORY COBfISSION OFFICE OF INSPECTION AND ENFORCEMENT REGION III Ju y 13, 1979 IE Circular No. 79-13 REPLACEMENT OF DIESEL TIRE PUMP STARTING CONTACTORS
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Description of Circumstances:
On May 2P, 1978, the Diesel Fire Pump failed to start remotely at Davis-Besse, Unit 1 facility operated by Toledo Edison Company. The cause for failure was defective sta-ing 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 Indus-trial Fire Pump Engines.
Discussion:
The investigation revealed that Cumins Fngine Company issued a Service / Parts Topics No. 74T 13-3A
.m ouncing new components available for Industrial Fire Pumps (NH-220-1F, N-855-F, N-855-F1, NT-855-F2 series engines) to improv2 operation of inline 6 cylinder Industrial Fire Pump Engines.
In this topic, Cummins recommends that when replacing the 118848 m::,gnetic switch and 199573 DC relay contactor, us the new 217588 magnetic switch. The new design component has a 6 ampera draw whereas the old combination has approximately 3 amperes draw.
Davis Besse and Dresden sites have implemented the corrective action recommended by Cummins.
Recoc: mended Actions for Licensees' Consideration:
All holders of operating licenses or construction permits should be aware of the potential problem of the type discuesed 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 Cumins type 118848 Magnetic Switch and 199573 DC relay contactors are also employed. For those engines which have these components, develop a pro-gr_m for their replacement with the new 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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Enclosures:
1.
Cummins Service / Parts Topics jEntiredocumentpreviouslyentered sysum unh:
2.
List of ECr rs Issued in the Last Twelve Months.
ANO 7 9O 719 OI2 fi No. of pages:
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