05000338/LER-1979-146-03, /03L-0:on 791116,w/unit in Refueling Shutdown, Pressurizer Level Protection Channel III Found to Be Reading Erratic & Inconsistent W/Actual Level.Caused by Defective Module Amplifier in Transmitter LT-1461

/03L-0:on 791116,w/unit in Refueling Shutdown, Pressurizer Level Protection Channel III Found to Be Reading Erratic & Inconsistent W/Actual Level.Caused by Defective Module Amplifier in Transmitter LT-1461

ML19260C108
Person / Time
Site:	North Anna
Issue date:	12/14/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19260C106	List: 05000338/LER-1979-146, Forwards LER 79-146/03L-0 05000338/LER-1979-146-03, /03L-0:on 791116,w/unit in Refueling Shutdown, Pressurizer Level Protection Channel III Found to Be Reading Erratic & Inconsistent W/Actual Level.Caused by Defective Module Amplifier in Transmitter LT-1461
References
LER-79-146-03L, LER-79-146-3L, NUDOCS 7912180570
Download: ML19260C108 (1)

LER-1979-146, /03L-0:on 791116,w/unit in Refueling Shutdown, Pressurizer Level Protection Channel III Found to Be Reading Erratic & Inconsistent W/Actual Level.Caused by Defective Module Amplifier in Transmitter LT-1461

Event date:
Report date:
3381979146R03 - NRC Website

text

NRC FORM 366 U. S. NUCLEAR RE ULATORY COMMISSION (7 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

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EJ 61 DOCKET NUMB ER 68 6'J EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o

2 i On November 16, 1979, with the unit in a refueling shutdown, Pressurizer Level Protect 4 Io l3 l l 1 n Channel III was found to be reading erratic and inconsistent with actual level.

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The level transmitter was replaced with a trans-I mitter fron Unit 2 and the new transmitter is presently being calibrated.

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