ML19273B960

LER 79-037/03L-0 on 790514:during Mode 3,supply Valves to Steam Generator Would Not Respond to Control Room Demand Signal.Caused by Blown Fuse & Stuck Relay.Similar to LER 50-368/79-026.Repairs Made & Valves Proven Operable

ML19273B960
Person / Time
Site:	Arkansas Nuclear
Issue date:	06/12/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19273B940	List: ML19273B939 ML19273B946 ML19273B952 ML19273B960
References
LER-79-037-03L, LER-79-37-3L, NUDOCS 7906180587
Download: ML19273B960 (1)

Text

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oOCgET sVMBE R Ca 74 EVENT DATE 75 HF,OHI C AT E 80 EVENT DESCAIPTION AND PROBA0LE CONSEQUENCES h o 2 [During Mode 3 operation, while utilizing the steam driven  ;

g,i,j; Emergency Feedwater Pump, 2P7B, for normal auxiliary ,

a 4 l feed, supply valves, 2CV-1039-2 and 2CV-1076-2, to i c s Steam Generator, 2E24B, would not respond to a Control j

g  ; Room demand signal. The 2P7A feedwater loop to 2E24B j

i> Iwas declared inoperable. This occurrence is similar to i

, i S0 -368/79-026. Reportable per T.S.6.9.1.9 (b) . i Sv0!EU C A #.,E C A U56 U ",

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, gT.S.3.7.1.2. Investigation revealed a blown fuse in the j

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, , , i 2CV-1076-2 operation. Repairs were made 6 valves proven operable. ,

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