05000316/LER-1981-025-03, /03L-0:on 810604,during Testing,Boron Isolation Tank Isolation Valve ICM-250 Failed to Open from Control Room.Probably Caused by Torque Switch Set Too Low.Switch Setting Increased

/03L-0:on 810604,during Testing,Boron Isolation Tank Isolation Valve ICM-250 Failed to Open from Control Room.Probably Caused by Torque Switch Set Too Low.Switch Setting Increased

ML20009A871
Person / Time
Site:	Cook
Issue date:	07/03/1981
From:	Piehl R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20009A870	List: 05000316/LER-1981-025, Forwards LER 81-025/03L-0 05000316/LER-1981-025-03, /03L-0:on 810604,during Testing,Boron Isolation Tank Isolation Valve ICM-250 Failed to Open from Control Room.Probably Caused by Torque Switch Set Too Low.Switch Setting Increased
References
LER-81-025-03L, LER-81-25-3L, NUDOCS 8107140385
Download: ML20009A871 (1)

LER-1981-025, /03L-0:on 810604,during Testing,Boron Isolation Tank Isolation Valve ICM-250 Failed to Open from Control Room.Probably Caused by Torque Switch Set Too Low.Switch Setting Increased

Event date:
Report date:
3161981025R03 - NRC Website

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NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION (777)

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3 g 60 61 DOCKET NUMBER 68 63 EVENT DATE 74 7b REPORT DATE 80 EVENT DESCRIITION AND PROBABLE CONSEQUENCES h o 2 [

DURING A SURVEILLANCE TEST, BIT ISOLATION VALVE, ICM-250 FAILED TO OPEN FROM I

CONTROL ROOM. THIS CONSTITUTED AN INOPERABLE FLOW PATH REQUIRED BY T.S.

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VALVE OPENED MANUAlt.Y AND CLOSED IN NORMAL MANNER FROM CONTROL ROOM.

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