ML19350E491

Updated LER 80-036/03X-1:on 800602,steam Driven Emergency Feedwater pump,2P7A,turbine driver,2K3,tripped on Overspeed Following Manual Start.Caused by Design Deficiency.Governor Valve Control Modified

ML19350E491
Person / Time
Site:	Arkansas Nuclear
Issue date:	06/19/1981
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19350E481	List: ML19350E480 ML19350E483 ML19350E487 ML19350E490 ML19350E491 ML19350E492
References
LER-80-036-03X, LER-80-36-3X, NUDOCS 8106230167
Download: ML19350E491 (1)

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u 40 4' oOcElf kua*00 8 W sVt'si D.Tg 7. 7 0 1g EVENT DESCRIPTION t.NO PROe AGLE CONSEoutNCES h F6Til LDuring Mode 1 operation, the Steam Driven Emergency Feedwater (EFW) Pump, i Lo L!J 12P7A. turbine driver. 2K3. triopod on nvorspeed following a manual start. I FFT71 IThe Electric Driven ErW Pump, 2P78, and associated flowpaths remained op- l o s ter.abl e.

This occurrence is similar to LER's 50-368/78-032,79-055, 79-072i F6Til 179-081,79-104, .80-022 & 80 030. Reportable per T.S. 6.9.1.9.b. I i

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[*1:1Irnlatod- Mndi fica t inne te thn nnunenne valun enntrni nntimi7nd nnvernnr j qTil Ivalve response to speed signals. A testing program verified EFW turbine i Refer to I FR Sn-16R/Rn-nc;n/01X-4 for further iaformation. I E lreliabilitv.

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