ML19225B222
| ML19225B222 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/13/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Cavanaugh W ARKANSAS POWER & LIGHT CO. |
| References | |
| NUDOCS 7907240299 | |
| Download: ML19225B222 (1) | |
Text
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AR LING TON, T E X AS 76012 July 13, 1979 Docket Nos.
50-313 50-368 Arkansas Power and Light Company ATTN:
Mr. William Cavanaugh III Vice President of Generation and Construction P. O. Box 551 Little Rock, Arkansas 72203 Gentlemea:
The enclosed IE Circular No. 79-13, is forwarded to you for information.
No written response is required.
Should you have any questions related to your understanding of this matter, please contact this office.
Sincerely, fjr k.c '
f Karl V. Seyfrit Director
Enclosures:
1.
IE Circular No. 79-13 2.
List of IE Circulars Issued in Last 12 Months ec: James P. O'Hanlon, Plant Manager Arkansas Nuclear One P. O. Box C08 Russellville, Arkansas 72801 L. Alexander, QC Supervisor 415 241 7 9 07 2 40 Ff 9 '
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UNITED STATES NUCLEAR REGULATORY COM?lISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 IE Circular No. 79-13 Date:
July 13, 1979 Page 1 of 1 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 1 facility operated by Toledo Edison Company. The cause for failure was defective starting contacters.
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 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 Pump Engines.
In this topic, Cummins 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 Cummins.
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 cont.truction 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 engiaes 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 t'ais Circular is required.
If you require additional information regarding these matters, contact the Director of the appropriate NRC Regional Office.
x 3
DUPLICATE DOCUMENT
Enclosure:
Cummins Service / Parts Topics Entire document previously entered into system under:
No. 74T 13-3A t
} 9D 7/ 9gjeQ (g' 415 242 No. of pages:
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