ML19242A164
| ML19242A164 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 07/13/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Jeffery Grant TOLEDO EDISON CO. |
| References | |
| NUDOCS 7907310417 | |
| Download: ML19242A164 (1) | |
Text
panc, o
![},,,f( %g o,
UNITED STATES NUCLE AR REGULATORY COMMISSION
- '-' A c REGION ll1 o,
h4
[
799 ROOSE VE LT HO AD
[
GLEN E LLYN, ILLINOls 60137 0,
JUL 131979 Docket No. 50-346 Toledo Edison Company ATTN:
Mr. James S. Grant Vice President - Energy Supply Edison Plaza 300 Madison Avenue Toledo, OH 43652 Gentlemen:
The enclosed lE 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, 0JX. e) b x. m L v
James G. Keppler["'
Director
Enclosure:
IE Circular No. 79-13 cc w/ encl:
Mr. T. Murray, Station Superintendent Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Harold W. Kohn, Power Siting Commission Helen W. Evans, State of Ohio fl
/
i f' i J.).)
7 9073: O Y/ 7
U.S. NUCLEAR REGULATORY CO.TfISSION OFFICE OF INSPECTION AND ENF0RCEMENT REGION III July 13, 1979 IE Circular No. 79-13 REPLACEMENT OF DIESEL FIRE PUMP STARTING CONTACTORS Description of Circumstances:
On May 28, 1978, the Diesel Fire Pump failed to start remotely at Davis-Besse, Unit I facility operated by Toledo Edison Company. The causa for failure was defective starting contactors. A subsequent investigation into the cause of a similar failure on January 18, 1978, at Commonwealth Edison Co=pany's Dresden 2/3 Diesel Fire Pump fdentified a generic problem with Cu= mins Indus-trial Fire Pump Engines.
Discussion:
The investigation revealed that Cummins Engine Conaany issued a Service / Parts Topics No. 74T 13-3A announcing new components available for Industrial Fire Pu=ps (NH-220-1F, N-855-F, N-855-F1, NT-855-F2 serica engines) :o improve operation of inline 6 cylinder Industrial Fire Pump Engines.
In this topic, Cu= mins recommends that when replecing 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 Cu== ins.
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 recom= ended 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 facility (ies).
If these engines are in use or planned for use, determine if the Cu= mins 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.
Enclosures:
DUPLICATE DOCUMENT 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 *
]907/96/ZQ ANO g
No. of pages:
[p
't o
lume=s.
A,
,