ML19344B566

LER 80-043/03L-0:on 800925,during Routine Surveillance, Reactor Triple Low Water Level Sensor RE18D Tripped at Level Less Conservative than Tech Specs.Caused by Sensor Repeatability.Sensor Reset

ML19344B566
Person / Time
Site:	Oyster Creek
Issue date:	10/03/1980
From:	Gasbarro D JERSEY CENTRAL POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19344B565	List: ML19344B564 ML19344B566
References
LER-80-043-03L, LER-80-43-3L, NUDOCS 8010210495
Download: ML19344B566 (1)

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EVENT DESC:tiPTION AND PROSASLE CONSEQUENCES

- On Thursday September 25, 1980 whi e performing routine j

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surveillan'e c testing of the reactor triple low water level

g, sensors, RE18D tripped at a level less conservative-than 1 g, i t'

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,,g,i Consequence of this event was a loss of redundance at {

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,onji the health and safety of the public. (Ref. R0 No. 50-214/RO 1A/1r i

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22 34 as as si .0 di 2 2 CAUSE DESCRIPTION AND CORRECTIVE ,.

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C ause of this occurrence was attributed to sensor g i l I!

, , 1. repeatability. RE180 sensor was reset to trio within I

gi its prescribed limit. An engineerina study is in I;

g l-progress regarding feasibility of replacina the existina sensors with a solid state system.. I gg

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Domenick P. Gasbarro i

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. . NAME OF PRE *ARER

- PPCNE:(609) 693-6038

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