05000348/LER-1979-057-03, /03L-0:on 791122,steam Generator B Level Channel 486 Declared Inoperable Due to High Reading.Caused by Instruments Equalizing Valve Leaking.Valve Tightened,Tested & Returned to Operation

/03L-0:on 791122,steam Generator B Level Channel 486 Declared Inoperable Due to High Reading.Caused by Instruments Equalizing Valve Leaking.Valve Tightened,Tested & Returned to Operation

ML19256G016
Person / Time
Site:	Farley
Issue date:	12/19/1979
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256G012	List: 05000348/LER-1979-057-03, /03L-0:on 791122,steam Generator B Level Channel 486 Declared Inoperable Due to High Reading.Caused by Instruments Equalizing Valve Leaking.Valve Tightened,Tested & Returned to Operation 05000348/LER-1979-058-03, /03L-0:on 791121,boron Injection Tank Declared Inoperable Due to Low Concentration.Caused by Inadvertent Safety Injection.Concentration Increased by Batching ML19256G011
References
LER-79-057-03L, LER-79-57-3L, NUDOCS 7912270228
Download: ML19256G016 (1)

LER-1979-057, /03L-0:on 791122,steam Generator B Level Channel 486 Declared Inoperable Due to High Reading.Caused by Instruments Equalizing Valve Leaking.Valve Tightened,Tested & Returned to Operation

Event date:
Report date:
3481979057R03 - NRC Website

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g,J ya Up TNUV;lEH C.1 GJ LVtNT DATE 74 73 HEPo'tT DATE 00 EVENT Of SCnlPTION AND FROSASLE cONSEC',.;ENCES h [oTT]lAt 1130 on 11/22/79, Steam Generator B level channel 486.was declared inoperable due l

g ; to its reading approximately eight peteent higher than the other two S.G. B level l

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Tech. Spsc. 3.3.1.1,in part, requires S.G. B level channel 486 to be l

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Tech. Spec. 3. 3.1.1 action statement requirements were met.

The health andg c,, c l safety of the public were not affected by this event.

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lii: !lThis event uas caused bv the instruments emializine valve lenin 2: subsaouentiv the i

ti i i I valve was tichtened and the channel was returned to operation at 0200 on 11/23/70 1

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