ML20062G317

/03L-0 on 781130:refueling Floor Vent Exhaust sensor(D11-N012C)gave False High Indication.Caused by Sensor Mounted in Such a Way as to Allow Rain Water to Enter

ML20062G317
Person / Time
Site:	Hatch
Issue date:	12/18/1978
From:	Nix R GEORGIA POWER CO.
To:
Shared Package
ML20062G316	List: ML20062G312 ML20062G317
References
LER-78-095-03L, LER-78-95-3L, NUDOCS 7812270318
Download: ML20062G317 (1)

Text

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CONih0L DLOCK: l

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[h (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATIONI i

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DAT E EVENT DESCRIPTION AND PROB ABLE CONSECUENCES h l

.' E I During normal coeration, a refuelina ficer vent exhaust senser (Cll-N012C) gave a J

g false high indication. At the time of the erronecus signal in the ' A' channel, the l l g ( 'B' channel was available and cperable (Technical Specification Table 3.2-8). Public :

t lgi health and safety were not affected by this incident. g ,

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lEI i g g COMP. VALVE 80 l

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SYSTEM CAusE CAUSE CODE CCCE SUBCODS COMPONENT CODE SUCCODE SueCCDE f

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SECUENTi,L OCCURRENCE REPCRT PEVt310N

,_ EVENT YEAR REPORT NO. CODE TYPE NO.

LE R O ,agg/RO 1718I l-l 10l9iSi l/l 1013l l ll [-j l Cl 5 21 22 23 34 26 27 23 23 30 31 32 i f4 A O C PL NT ME H HOUR $ $8 i FC 7 9. $ Pt.l E MAN FA T RER j

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CAUSE DESCRIPTION AND CCRRECTIVE ACTIONS h f

) la l l The sensor faile<i with a hich indication because it was mounted in such a way as 1 ji 4  :

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a ,LJl to allow rain water to enter the senser enclosttra. The G-M tube was reolacel and I t; I i

! i7j l the sensor rerounted in a manner that will orevent moisture frem enterino I t al 1 (M.R. 73 41d31. The G01' G-M tube is manufactured by Amoerex Electrcnics i 14i l Cerooration. l.  !

i 4 ao sT N  % power STATUS 15 0 Y OtSCOVERY DESCRIPTION @

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'Inl a 3 hl iu rd I 6a 6s lllIIII1IIIIII to ; (,

NAME CF PREPARER R. T. mv pgong; (OM m.&1 { {

Superintendent at ibin;enance 7812270Sl8 .!

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