ML20058K744

Informs of 740712 Failure of RHR Svc Water Pump 11 for Torus Cooling to Start.Pump Motor Breaker Replaced.Pump Demonstrated Operable.Investigation to Determine Cause of Breaker Malfunction in Progress

ML20058K744
Person / Time
Site:	Monticello
Issue date:	07/15/1974
From:	Larson C NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 9102130555
Download: ML20058K744 (1)

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-Me. J.:G. Esppler, JogiossalEirector Sirectezateof RegulatoryW+4ans a,

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Taillasse of -the%.11.RR Service . Water Ptzsp ito Start Y, JQn hsly 12,1974, .Aulag Toutine operation .cf the 'RHR Service Water _ system, for itosus. cooling, -thej!io. 113GR SW M failed :to star.t. 'D2e ptmap motor -bicaker was ~

rapimesui withIspare-assi the,ptsap was dessanstrated operable. .The.redw.hst pump ia iths A"-loop and the N in-t:he Md-t *B" loop were .also dessonstrated ,to be t

-opassibbe. 'An dsrEdtigatien-toidstermine .the f.ause of the : breaker malfunctica is i

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