ML19247A393
| ML19247A393 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 07/13/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Gerstner W ILLINOIS POWER CO. |
| References | |
| NUDOCS 7907310411 | |
| Download: ML19247A393 (1) | |
Text
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Docket No. 50-461 Docket No. 50-462 Illinois Power CoLyanv A'ITN :
Mr. W. C. Gerstner Executive Vice President 500 South 27th Street Decatur, IL 62525 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, James G. Kepple Director Enclosure-IE Circular No. 79-13 cc w/ enc 1:
Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Mr. Dean Hansell, Office of Assistant Attorney General N
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U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
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REGION III July 13, 1979 IE Circular No. 79-13 REPLACEMENT OF DIESEL FIRE
.ti? STARTING CONTACTORS
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Description of Circumstances:
On May 28, 1978, the Diesel Fire Pu=p failed to start re=otely at Davis-Bess',
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 Co==envealth Edison Company's Dresden 2/3 Diesel Fire Pu=p identified a generic proble= with Cu= mins Indus-trial Fire Pump Engines.
Discussion:
The investigation revealed that C H ns 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, h'I-855-72 series engines) to i= prove operation of inline 6 cylinder Industrial Fire Pu=p Engines. In this topic, C e ins reco== ends that when replacing the 118848 =agnetic switch and 199573 DC relay contactor, use the new 217588 =senetic switch. The new design component has a 6 ampere drav vhereas the old combination has approxi=ately 3 a= peres draw. Davis Besse and Dresden sites have i=plemented the corrective action recoenended by Cu== ins.
Reco=lended 4tions for Licensees' Consideration:
All holders of operating licenses or construction per=1ts should be aware of the potential problem of the type discussed above. Because of the generic implications in this matter, it is recc== ended that bcth licensees of operating facilities and holders of construction permits conduct a review to deter =ine 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 plannet for use, determine if the C
- s type 118848 b gnetic Switch and 199573 DC relay contactors are also employed. For those engines which have these components, develop a pro-grs= for their replacement with the new 217588 h gnetic Switch.
No writte: response to this Circular is required.
If you require additional infor=ation regarding these matters, contact the Director of the appropriate HRC Regional Office.
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9 DUPLICATE DOCUMENT
Enclosures:
i 1.
C Se ts Topics Entire document previously entered jintosystemunder:
2.
List of IE Circulars Issued in the Last Twelve Months
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