ML19225C882

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Forwards IE Circular 79-13, Replacement of Diesel Fire Pump Starting Contactors. No Action Required
ML19225C882
Person / Time
Site: Grand Gulf  Entergy icon.png
Issue date: 07/13/1979
From: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To: Stampley N
MISSISSIPPI POWER & LIGHT CO.
References
NUDOCS 7908030137
Download: ML19225C882 (2)


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NUCLEAR REGULATORY COMMISSION REGION 11

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

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j jus 1~ N In Reply Refer To:

RII:JP0 50-416, 50-417 Mississippi Power end Light Company Attn:

N. L. Stampley Vice President of Production P. O. Box 1640 Jackson, Mississippi 39205 Gentlemen:

The enclosed IE Circuler No. 79-13, is f orwarded to you for infomation.

No written response is required.

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

Sincerely, o

Ci_ _ _ ['b ~ #

James P. O'Reilly "t

Director

Enclosures:

1.

IE Circular No. 79-13 2.

List of IE Circulars Issued in the Last 12 Months 408 236

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JU! 1,e p Mississippi Power and Light Company cc w/ encl:

C. K. McCoy Plant Manager Post Office Box 756 Port Gibson, Mississippi 39150 e

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UNITED STATES 7UCLEAR REGULATORY CO? MISSION OFFICE OF INSPECTION AND ENFORCEMD'T WASHINGTON, D.C.

20555 July 13,1979 IE Circular No. 79-13 REPLACDIENT OF DIESEL FIRE PLMP STARTING CONTACTORS Description of Circumstances:

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

Discussion:

Cu::= ins Engine Company issued a Service / Parts The investigation revealed that7AT 13-3A announcing new components available for In Fire Topics No.(NH-220-1F, N-855-F, N-855-F1, NT-855-F2 series engines) to improve In this topic, Pu=ps operation of inline 6 cylinder Industrial Fire Pu=p Engines. magnetic switch and 199573 118848 Cumins recomends that when replacing the 217588 magnetic switch. The new desigt DC relay contactor, use the nev l

component has a 6 ampere drav vhereas the old combinatian ha 3 amperes draw.

action recomended by Ctm-ins.

Reco== ended Actions for Licensees' Consideration:

All holders of operating licenses or construction permits should be aware of Because of the generic the potential problem of the type discussed above. implication i

a review to determine facilities and holders of construction permits conduct for use at your if the above diesel fire pump engines are in use or plannedIf the 118848 Magnetic Svitch and 199573 DC relay con actors are t

facility (ies).

Por those engines which have these components, develop a pro-the C h ns type 217588 Magnetic Switch.

also e= ployed.

gram for their replacement with the nev If you require additional No written response to this Circular is required.M *he Director of the appropriate information regarding these matters, I

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NRC Regionni Office.

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