05000219/LER-1980-052-03, /03L-0:on 801118,reactor Triple Low Water Level Indicator Switches RE-18A & RE-18D Tripped at Manometer Readings Higher than Tech Spec Limit.Caused by Sensor Repeatability.Switches Reset

/03L-0:on 801118,reactor Triple Low Water Level Indicator Switches RE-18A & RE-18D Tripped at Manometer Readings Higher than Tech Spec Limit.Caused by Sensor Repeatability.Switches Reset

ML19345D700
Person / Time
Site:	Oyster Creek
Issue date:	12/08/1980
From:	Fitzgerald M JERSEY CENTRAL POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345D692	List: 05000219/LER-1980-052, Forwards LER 80-052/03L-0 05000219/LER-1980-052-03, /03L-0:on 801118,reactor Triple Low Water Level Indicator Switches RE-18A & RE-18D Tripped at Manometer Readings Higher than Tech Spec Limit.Caused by Sensor Repeatability.Switches Reset
References
LER-80-052-03L, LER-80-52-3L, NUDOCS 8012160491
Download: ML19345D700 (1)

LER-1980-052, /03L-0:on 801118,reactor Triple Low Water Level Indicator Switches RE-18A & RE-18D Tripped at Manometer Readings Higher than Tech Spec Limit.Caused by Sensor Repeatability.Switches Reset

Event date:
Report date:
2191980052R03 - NRC Website

text

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8 60 68 DoCxtTNVu8tm 68 69 EV E NT C ATE T4 75 RtPCMT QATE 80 EVEN r QESCmPTION ANc PRCS A8LE CONSEQUENCES O10 t c 1:I_l During' surveillance testing of reactW triple low water level indicator switches, b6th RE-18A and RE-18D tripped at manometer readings higher 3

,,,,,, than the limit of <126.0"H 0 as given in the Tech. Spec., Table 3.1.1, 2

,,,,,. Item G.2.

The "As Found" values for each were Re-18A-129.5"H 0, RE-18B-2 125.8"H 0, RE '.8C-126.0"H 0 and RE-180-130.0"H 0.

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,,,,,; The cause of the occurrence was at ibuted to sensor repeatability. The

,,,,,, switches were reset to trip within the Tech. Spec, limit of between

,,,, 121.0"H 0 and 123.0"H 0.

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