ML19344B149

LER 80-050/03L-0:on 800717,while Testing Steam Driven Emergency Feedwater Pump 2P7A,turbine Driven 2K3 Tripped on Overspeed.Cause Not Found.Accelerated Test Schedule Resumed to Determine Reason for Trips

ML19344B149
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/15/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19344B148	List: ML19344B147 ML19344B149 ML19344B154 ML19344B157
References
LER-80-050-03L, LER-80-50-3L, NUDOCS 8008250646
Download: ML19344B149 (1)

Text

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.0 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES Oio o 2 i During Mode 1 operation, while testing the steam-driven emergency feed- 1 o i water pump 2P7A, the turbine driven 2K3 tripped on overspeed. The elec-1 t o i. i i tric-driven pump 2P7B was verified operable. This occurrence is similarl

,,,,,, to LER's 50-368/79-055,79-072, 79-081,79-104, 80-022, and 80-030. ,

Lo._L6J l Reportable Per Tech. Spec. 6.9.1.9b. I o 1 l l l o le l I ,j

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3J 34 3b 36 JJ 40 45 42 43 4r CAUSE DESCRIPTION AND CORRECflVE ACTIONS h m i Following the overspeed trip, 2P7A was successfully started six times. i i,i,il Exact cause of overspeed trip could not be found. An accelerated test i m i sche,dule for 2P7A was resumed in an effort to determine the reason for i 3 l the overspeed trips. ,

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