ML19247A397
| ML19247A397 | |
| Person / Time | |
|---|---|
| Site: | Marble Hill |
| Issue date: | 07/13/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Coughlin J PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA |
| References | |
| NUDOCS 7907310416 | |
| Download: ML19247A397 (1) | |
Text
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oq'o UNITED STATES
,. qf( j NUCLEAR REGULATORY COMMISSION PDR
d-c REGION 111 h
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GLEN ELLYN, ILLINOIS 60137 Docket No. 50-546 JUL 131979 Docket No. 50-547 Public Service of Indiana ATTN:
Dr. James Coughlin Vice President, Nuclear
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1000 East Main Street Plainfield, IN 46168 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, k
.< >H S JamesG.Kepplerg Director
Enclosure:
IE Circular No. 79-13 cc w/ enc 1:
Mr. R. M. Brown, Construction Project Superintendent Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC LeBoeuf, Lamb, Leiby & MacRae
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT idECIONIII July 13, 1979 IE Circular No. 79-13 REPLACEMENT OF DIESEL FIRE PUMP STARTING CONTACTORS
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Description of Circumstances:
On May 28, 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 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 Cu= mins Indus-trial Fire Pump Engines.
Discussion:
The investigation revealed that Cummins Engine Company issued a Service / Parts Topics No. 74T 13-3A announcing new components available for Industrial Fire Pumps (NH-220-1F, N-855-F, N-855-F1, NT-855-F2 series engines) to improve operation of inline 6 cylinder Industrial Fire Pu=p Engines.
In this topic, Cu= mins recommends that when replacing the 118848 magnetic switch and 199573 DC relay contactor, use the new 217588 magnetic switch. The new design component has a 6 ampere draw whereas the old combination has approximately 3 amperes draw. Davis Besse and Dresden sites have implemented the corrective action recommended by C d ns.
Recommended Actions for Licensees' Consideration:
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 pu=p engines are in use or planned for use at your f acility(ies).
If these engines are in use or planned for use, determine if the Cummins type 118848 Magnetic Switch and 199573 DC relay contactors are also employed. For those engines which have these components, develop a pro-gram 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:
iDUPLICATEDOCUMENT 1.
Cummins Service / Parts Topics No.
74 T 13-13A.
Entire document previously entered 2.
List of IE Circulars Issued into system under:
in the Last Twelve Months.
No. of pages:
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