ML19246C342
| ML19246C342 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 07/13/1979 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Aswell D LOUISIANA POWER & LIGHT CO. |
| References | |
| NUDOCS 7907240312 | |
| Download: ML19246C342 (1) | |
Text
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UNITED STATES 3
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REGION IV 011 RYAN PLAZA DHIVE, SUITE 1000 S f+.'s
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AtlLINGToN, T E X AS 76012
t, July 13, 1979 In Reply Ref er To:
RIV Docket No.
50-382/IE Circular No. 79-13 Louisiana Power and Light Co.
ATTN:
Mr. D. L. Aswell Vice Pres. dent of Power Production 142 Delaronde Street New Orleans, Louisiana 70174 Gentlemen:
The enclosed lE Circular No. 79-13, is forwarded to you for inforraation.
No written response is requircl.
Should you have any questions related to your understanding of this natter, please contact this office.
Sincerely,
'fgky /ca' Karl V. Seyfrit Director
Enclosures:
1.
IE Circular No. 79-13 2.
List of IE Circulars Issued in Last 12 Months 360 330 79072403p -
UNITED STATES EUCI. EAR REGUL\\ TORY C0!DlISSION OFFICE OF INSPECTION AND ENFORCEMENT WASIf1NGTON, 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 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 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 pernfits 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 contactors are also employed.
For those engines which have these components, develop a pro-gramfortheirreplacementwitht{new.217_588 Magnetic Switch.
No written response to this Circu; DUPLICATE
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information regarding these mattd NRC Regional Office.
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Enclosure:
.I Cummins Service / Parts Topics k
No. 74T 13-3A No, of
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