ML20004F016

LER 81-015/03L-0:on 810510,steam Flow Transmitter Found Out of Calibr Resulting in Bi Steam Flow & hi-hi Steam Flow Trip Settings Less Conservative than Tech Spec.Caused by Instrument Drift.Transmitter Recalibr

ML20004F016
Person / Time
Site:	Kewaunee
Issue date:	06/09/1981
From:	Jay Wallace WISCONSIN PUBLIC SERVICE CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20004F015	List: ML20004F014 ML20004F016
References
LER-81-015-03L, LER-81-15-3L, NUDOCS 8106160398
Download: ML20004F016 (1)

Text

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LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l l lh 6

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI o ltl8 9l Wl LICENSEE Il Kl Nl Pl 114 l@l 0 l 0 l- l 0L& l0 15 l0 l0 l0 l- l0 l0 25l@l26 4 lLICENSE CENSE NUMSER Il 1l 1l TYPE1l@l 40 l

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8 60 61 DOCKET NUMBER 68 EVENT DEscalFTION AND PROBABLE CONSEQUENCES h

. o 12 l l Surveillance testing during refueling shutdown indicated that one steam flow trans- I o,3j l mitter was out of calibration resulting in Hi Steam Flow and Hi-Hi Steam Flow trip l

, o ;,, , l settings less conservative than T.S. requirements, TS 3.5.a. The other channels of l o;3, l steam flow instrumentation were operable within T.S. limits and would have initiated l 3 o is ; ; steam line isolation as requir'ed. There was no effect on plant operation or public l go;;; [ safety. Occurrences of excessive drif t have been previously reported. [

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9 10 11 12 13 IS 19 20 If 8 l SEoUENTIAL OCCUh AENCE REPORT REVISloN EVENTYEAR REPORT No. CoOE TYPE NO.

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47 33 34 CAUSE DESCRIPT10N AND CORRECTIVE ACTIONS lli j o l l Instrumentation drif t of the Barton steam flow transmitter caused it to be out of I lj i ii l l calibration condition. The transmitter was recalibrated and returned to service. t l

!i,, l The onsite review group is continuing to review the performance of transmitters l j,;3; l with specifications in Technical Specifications. An update report will be issued l gj j upon completion of that review. so t

i 8 9 ST S  % PoWE R OTHER STATUS is o RY OtScovERY DESCRIPTION g gl Surveillance Testing i 151 l Hlg l 0l 0l 0lgl NA l l

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PERSONNEL EXPOSURES NUM8ER TYPE DESCRIPTION I

i l 71101 o f o l@W@l NA PERScNNEl'imu' lies NuMSER oESCRiPriON@

i lalIololol@l 8 9 11 12 NA 80 LOSS OF oR DAMAGE To FACILITY TYPE DESCRIPTION i

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NAME OF PREPARER J. J. Wallace PHONE: (414) 433-1329 OI00 -