05000318/LER-1980-043-03, /03L-0:on 800914,during Normal operation,22B Safety Injection Tank Level Indication Became Erratic.Cause Not Known.Bench Test Revealed No Malfunction.Level Transmitter Replaced,Recalibr & Returned to Svc

/03L-0:on 800914,during Normal operation,22B Safety Injection Tank Level Indication Became Erratic.Cause Not Known.Bench Test Revealed No Malfunction.Level Transmitter Replaced,Recalibr & Returned to Svc

ML19338F502
Person / Time
Site:	Calvert Cliffs
Issue date:	10/14/1980
From:	Lagiewski J, Rizzo P BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19338F501	List: 05000318/LER-1980-043, Forwards LER 80-043/03L-0 05000318/LER-1980-043-03, /03L-0:on 800914,during Normal operation,22B Safety Injection Tank Level Indication Became Erratic.Cause Not Known.Bench Test Revealed No Malfunction.Level Transmitter Replaced,Recalibr & Returned to Svc
References
LER-80-043-03L-01, LER-80-43-3L-1, NUDOCS 8010200434
Download: ML19338F502 (2)

LER-1980-043, /03L-0:on 800914,during Normal operation,22B Safety Injection Tank Level Indication Became Erratic.Cause Not Known.Bench Test Revealed No Malfunction.Level Transmitter Replaced,Recalibr & Returned to Svc

Event date:
Report date:
3181980043R03 - NRC Website

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, LtdENSEE EVENT REPORT L [h hNhotstoCS ' 'l

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EVENT DESCRIPTION AND PROsA9LE CoNSEQUENC13 h M I<

Ourina -nomal ~ operation. 22n Safety Iitiection Tank (SIT)-level indica- -

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r.amm al iion became erratic and increased to >199" at-0320. - The reactor was

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'1425. The level. transmitter was replaced and recalibrated. Estimated

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. tank level prio'r-to~ draining was 246". ~228 SIT was return?d to ser-

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p L'_1.' J l Bench tests nerfomed on the re91 aced transt.11tter have revealed nn i

i gl mal function. Neither sense line nor-isolation valve lankage was ob-1 g [,-

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EVEilT DATE. _09/14/80-REPORT DATE D10/14/80 cATTACHMENT CAUSE DESCRIPTION AND CORRECTIVE ACTIONS:

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.During the' next. Unit 2 Refueling 0utage_ additional work is to be i

performed on the process sensing lines _ to the transmitter.

Connecting fittings will be replaced and additional testing for leaks will be perfomed under Main +enance-Request 0-80-2940.

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