ML19247A891

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Forwards IE Circular 79-13, Replacement of Diesel Fire Pump Starting Contactors. No Action Required
ML19247A891
Person / Time
Site: Atlantic Nuclear Power Plant 
Issue date: 07/13/1979
From: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To: Collier A
OFFSHORE POWER SYSTEMS (SUBS. OF WESTINGHOUSE ELECTRI
References
NUDOCS 7908030152
Download: ML19247A891 (1)


Text

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NUCLE AR REGUL ATORY COMMISSION

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101 M ARIETT A ST., N W., SUIT E 3100 ATL ANT A. GEORGI A 30303

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In Reply Refer To:

RII:JPO 50-437 Of fshore Power Systems Attn:

A. R. Collier, President P. O. Box 8000 Jacksonville, Florida 32211 Gentlemen:

The enclosed IE Circular No. 79-13, is f orvarded to you for information.

No written response is required.

Should you have any questions related to your understanding of this matter, please centact this office.

Sincerely,

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d James P. O'Reilly "T

Director Enclosure =:

1.

IE Circular No. 79-13 2.

List of IE Circulars Issued in the last 12 Honths E76028 1908030/6GL

UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND DiFORCEMENT WASHINGTOS, D.C.

20555 July 13,1979 IE Circular No. 79-13 REPLACDIDiT OF DIESEL FIRE PLMP STARTING CONTACTORS Description of Circu= stances:

the Diesel Fire Pu=p failed to start remotely at Davis-Besse, On May 28, 1979, The cause for failure was Unit 1 facility operated by Toledo Edison Company. investigation into the cause of defective starting contactors. A subsequent at Commonwealth Edison Cocpany's a sicilar f ailure on January 18, 1978, Dresden 2/3 Diesel Fire Pu=p identified a generic problem with Cumcins Indus-trial Fire Pu=p Engines.

Discussion:

The investigation revealed that Cu== ins Engine Co=pany issued a Service / Parts 74T 13-3A announcing new components available f or Industrial Fire Pu=ps (NH-220-1F, N-855-F, N-855-F1, NT-855-F2 series engines) to improve Topics No.

In this topic, operation of inline 6 cylinder Industrial Fire Pu=p Engines.magne - a svitch and 199573 118848 Cu=cins recommends that when replacing the 217588 magnetic switch. The new design DC relay contactor, use the new component has a 6 a= pere drav whereas the old combination h 3 amperes draw.

action reconcended by Cu== ins.

Reco== ended Actions for Licensees' Consideration:

All holders of operating licenses or construction permits should be svare of Because of the generic the potential proble= of the type discussed above.

i implications in this matter, it is recocmended that both licensees of operat ng facilities and holders of construction permits conduct a review to determine if the above diesel fire pump engines are in use or planned fo 118848 Magnetic Switch and 199573 DC rel ' contactors are facility (ies).

For those engines viiich have these components, develop a pro-the Cu=== ins type 217588 Magnetic Svitch.

also e= ployed.

gram for their replacement with the nev If you require additional No written response to this Circular is required.information h

opriate w._ ~

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NRC Regional Office, uu ~

' DUPLICATE DOCUMENT

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Enclosure:

CUMKINS Service / Parts Topics tinto system under:

s No. 74 T 13-3A

'79 07/ 90 /1h ANO No. of pages:

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