05000325/LER-1980-013-03, /03L-0:on 800125,while Performing Reactor Low Water Level 2 & 3 Channel Calibr & Functional Check,Low Pressure Switch 1B21-LITS-N031A-2 Failed to Actuate.Caused by Instrument Drift.Instruments to Be Replaced

/03L-0:on 800125,while Performing Reactor Low Water Level 2 & 3 Channel Calibr & Functional Check,Low Pressure Switch 1B21-LITS-N031A-2 Failed to Actuate.Caused by Instrument Drift.Instruments to Be Replaced

ML19294A995
Person / Time
Site:	Brunswick
Issue date:	02/15/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19294A992	List: 05000325/LER-1980-013, Forwards LER 80-013/03L-0 05000325/LER-1980-013-03, /03L-0:on 800125,while Performing Reactor Low Water Level 2 & 3 Channel Calibr & Functional Check,Low Pressure Switch 1B21-LITS-N031A-2 Failed to Actuate.Caused by Instrument Drift.Instruments to Be Replaced
References
LER-80-013-03L-01, LER-80-13-3L-1, NUDOCS 8002260564
Download: ML19294A995 (1)

LER-1980-013, /03L-0:on 800125,while Performing Reactor Low Water Level 2 & 3 Channel Calibr & Functional Check,Low Pressure Switch 1B21-LITS-N031A-2 Failed to Actuate.Caused by Instrument Drift.Instruments to Be Replaced

Event date:
Report date:
3251980013R03 - NRC Website

text

U. S. NUCLE AR REGULATORY COMMISSION deRMGRM 366 (7 778 LICENSEE EVENT REPCP ~

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44 61 DOCK ET Nuv8ER 6d 69 EVENT DATE 14 7%

REPORT D ATE 40 EVENT OESCRIPTION ANO PROB ABLE CONSEQUENCES h i While performing PT 3.1.7PC, Reactor Low Water Level No. 2 and 3 Channel Calibration i

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1 and Functional Check, low level pressure switch 1821-LITS-NO31A-2 failed to actuate. l o

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_ -147.5 inches of water.

l This switch is used for ECCS initiation at 0

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33 33 40 41 42 43 44 47 CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS l The failure of the switch to actuate was attributed to instrument drift. The switch i

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i i was recalibrated and returned to service in a satisfactorily condition. Due to a I

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