05000368/LER-1980-048-03, /03L-0:on 800708,during Mode 1,steam Generator B High Level Pretrip/Trip Signal Received on Channel C Pps. Voltages Read Zero.Caused by Defective Bistable Card.Card Replaced

/03L-0:on 800708,during Mode 1,steam Generator B High Level Pretrip/Trip Signal Received on Channel C Pps. Voltages Read Zero.Caused by Defective Bistable Card.Card Replaced

ML19327A450
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/01/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19327A445	List: 05000368/LER-1980-048, Forwards LER 80-048/03L-0 05000368/LER-1980-048-03, /03L-0:on 800708,during Mode 1,steam Generator B High Level Pretrip/Trip Signal Received on Channel C Pps. Voltages Read Zero.Caused by Defective Bistable Card.Card Replaced
References
LER-80-048-03L, LER-80-48-3L, NUDOCS 8008060209
Download: ML19327A450 (1)

LER-1980-048, /03L-0:on 800708,during Mode 1,steam Generator B High Level Pretrip/Trip Signal Received on Channel C Pps. Voltages Read Zero.Caused by Defective Bistable Card.Card Replaced

Event date:
Report date:
3681980048R03 - NRC Website

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EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h o a I Durine modeioperation. the "B" Steam Generator high level pretrip/ trip I i

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I eign?! var received ca Ch a n n el "C" I'P S.

Pretrip/ trip voltagee o 4 1 checked and found to be zero. The remaining PPS Channels' level set-I L

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i high level trips were bypassed. Similar to LER's 50-368/79-005,79-094,,

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