ML19253B387

LER 79-027/03L-0:on 790909,during Surveillance Test Performance,High Pressure Svc Water Pump 3D Tripped.Caused by Insecure Motor Leads of High Pressure Svc Water Pump Motor.Procedures Will Be Modified

ML19253B387
Person / Time
Site:	Peach Bottom
Issue date:	10/09/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-79-027-03L, LER-79-27-3L, NUDOCS 7910150484
Download: ML19253B387 (1)

Text

Mr. Duyce 't. Grier, Director No.

Of f ice of Inspec t ion & Enforcement, Re<jion i 3_79 27/3L U.S. Nuclear Regulatory CCmission 631 Park Avenue King of Prussio, PA 1 %06

Dear Mr. Gricr:

This LER refers to two HFSV pu=ps and one REH loop being inoperable. The applicable Technical Specification is 3.5.B.h.

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l 7191@ .2 EVENT oE SCRIPTio! AND PROB ABLE CONSEQUENCES h o 2 i With the 3A HPSV pu=p out of service for maintenance, the A LPCI loop o 3 L_ was blocked for local leak rate testing. During perfor=ance of surveil-

[ o g j L _, lance,, tests required by Tech Spec h.5. A.5. the 3D HPSV pu:::p tripped,

[oy L resulting in a further degraded mode. The safety significance of this

@] L _oc_currence is considered minimal because daily operability tests were o i L succe==Lully perfozued in accordance with Tech Spec h.5.B.h.

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cAust oESCR4PiloN AND CORRECTIVE ACTION $ h g i io] I The motor leads of the 3D HPSV pump motor appanntly were not secured

@] Lyroperly to prevent rubbing against motor cover & housing. Motor leads g,,,i were repaired & secured. Appropriate procedures will be modified to pre-pq vent recurrence. The reactor was shutdown on 9/1h for refueling outage.

g[ 3A HPSV pump was returned to 'ervice on 9/17 & the 3D HPSV pump on 9/23 Efat  % Powt m oT**E R ST A TUS D!s o A DiscovtRv DtiCnettom h

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