05000368/LER-1980-017-03, /03L-0:on 800316,during Mode 3 Operation,A Steam Generator Pressure Indicator 2 PI-1041-4N on Channel D Failed High.Caused by Electronic Output of Pressure Transmitter Plant Protection Sys Failing High

/03L-0:on 800316,during Mode 3 Operation,A Steam Generator Pressure Indicator 2 PI-1041-4N on Channel D Failed High.Caused by Electronic Output of Pressure Transmitter Plant Protection Sys Failing High

ML19309E609
Person / Time
Site:	Arkansas Nuclear
Issue date:	04/15/1980
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19309E600	List: 05000368/LER-1980-017, Forwards LER 80-017/03L-0 05000368/LER-1980-017-03, /03L-0:on 800316,during Mode 3 Operation,A Steam Generator Pressure Indicator 2 PI-1041-4N on Channel D Failed High.Caused by Electronic Output of Pressure Transmitter Plant Protection Sys Failing High
References
LER-80-017-03L, LER-80-17-3L, NUDOCS 8004220703
Download: ML19309E609 (1)

LER-1980-017, /03L-0:on 800316,during Mode 3 Operation,A Steam Generator Pressure Indicator 2 PI-1041-4N on Channel D Failed High.Caused by Electronic Output of Pressure Transmitter Plant Protection Sys Failing High

Event date:
Report date:
3681980017R03 - NRC Website

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S 60 65 ooCKET ~uMeg m 68 69 EVENT o.TE 74 FS HE, ORT o.TE 80 EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h 1 Durina Mode 3 operation, it was discovered that the A" Steam Generator i o 2 o

I oressure indicator. 2 PI-1041-4N. on Channel "D" PPS failed hich.

The 1

o. I low pressure & high SG differential pressure trips were bypassed per i

o s i T.S. Tahlo 1.1 1 Actinn A4 fnr FSFAS (MSTS A FFAS).

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t o a i i indicators remained operable. This occurrence is similar to LER I

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CAUSE DESCRIPTION AND CORRECrlVE ACTIONS i The electronic outout of the cressure transmitter failed high.

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I"iTT11 Provinns failure analvsis revealed nn narticular failure mode.

Similar i d i instrumentation have exhibited no failures.

Channel "D" PPS was declaredi i nnprahlp after montinn T 9 'rpnniramonts.

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