Text

Forwards LERs 78-093/03L-0,78-104/03L-0,78-105/03L-0 & 78-106/03L-0
	ML20197B300
Person / Time
Site:	North Anna
Issue date:	11/01/1978
From:	Stallings C; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	James O'Reilly; NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20197B305	List: 05000338/LER-1978-093-03, /03L-0:on 781017,multiplier Divider Card Output Drifted So That steam-feedwater Flow Mismatch Would Not Trip Until Actual Value of 1,932,000 Lbs Per Hour Occurred.Caused by Electronic Drift in Card.Card Recalibr; 05000338/LER-1978-104-03, /03L-0:on 781009,during Mode 1,leak Detected in Steam Valve 1-MS-120 Valve Leads to Steam Generator Auxiliary Feedwater Pump 1-FW-P-2.Caused by Isolation of Steamline,Causing Pump Inoperability; 05000338/LER-1978-105-03, /03L-0:on 781010,axial Flux Difference Deviated Greater than 5%.Caused by Rapid Load Reduction Necessitated by Problems W/Condenser Circulating Water Valve; 05000338/LER-1978-106-03, /03L-0:on 781010,power-range Instrumentation Channel N-41 Taken Out of Svc to Facilitate Replacement of Faulty Gain Pot.Caused by Dirt in Potentiometer,Resulting in Erratic Gain; ML20197B300;
References
	NUDOCS 7811060233
	Download: ML20197B300 (1)
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ML20197B300