ML20041B360

LER 82-002/03L-0:on 820114,deviation in Pressurizer (Pzr) Level Indication Noted.Caused by Instrument Calibr Out of Spec.Transmitter Recalibr

ML20041B360
Person / Time
Site:	Kewaunee
Issue date:	02/12/1982
From:	Smoker C WISCONSIN PUBLIC SERVICE CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20041B352	List: ML20041B351 ML20041B360
References
LER-82-002-03L, LER-82-2-3L, NUDOCS 8202230568
Download: ML20041B360 (1)

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, ,. LICENSEE EVENT REPORT (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) g CONTROL BLOCX: l 1

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7 8 60 61 DOCKET NUMBER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h g l During normal operation, a deviation in pressurizer (PZR) level indication was noted. l A calibration check found PZR level transmitter LT426 out of specification, low; l

, 3 y o , l the reactor trip signal for that channel would have occurred at 91.8%. This is I o 3 l 1.8% later than required by T.S. 2.3.a.2.C. and is reportable per T.S.6.9.2.b. (1) . l 9 3 l The redundant channels would have initiated the required protective actions. There l lol7ll was no effect on public safety or plant operation. l I

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43 44 47 CAUSE DESCRIPTION AND CORHLCTIVE ACTIONS h gg l Instrument calibration out of specificationiis the result C,f inst rument drift. The 1 1

i , l transmitter was recalibrated ' and returned to service. These Barton transmitters are I g within the scope of the equipment qualification program (IEB 79-01B) and will be l g,,3, l changed out as part of a long term upgrade. No further action is required at this l time. l gg .1 - 80 7 ' 8 9 ST S  % POWE R OTHERSTATUS SCO R DISCOVERY DESCRIPTION li l s j [ Ej@ l 1 l 0 l 0 l@l NA l W @l Operator observation l

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