05000317/LER-1981-004-03, /03L-0:on 810119,containment Cooler 8-inch SRW Discharge valve,1-CV-1593,failed to Open.Caused by Solenoid valve,1-SV-1593,not Allowing 1-CV-1593 to Open.Solenoid Valve Replaced W/Spare & Parts Kit Installed

/03L-0:on 810119,containment Cooler 8-inch SRW Discharge valve,1-CV-1593,failed to Open.Caused by Solenoid valve,1-SV-1593,not Allowing 1-CV-1593 to Open.Solenoid Valve Replaced W/Spare & Parts Kit Installed

ML20003C075
Person / Time
Site:	Calvert Cliffs
Issue date:	02/17/1981
From:	Lagiewski J, Rizzo P BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20003C065	List: 05000317/LER-1981-004, Forwards LER 81-004/03L-0 05000317/LER-1981-004-03, /03L-0:on 810119,containment Cooler 8-inch SRW Discharge valve,1-CV-1593,failed to Open.Caused by Solenoid valve,1-SV-1593,not Allowing 1-CV-1593 to Open.Solenoid Valve Replaced W/Spare & Parts Kit Installed
References
LER-81-004-03L, LER-81-4-3L, NUDOCS 8102260571
Download: ML20003C075 (2)

LER-1981-004, /03L-0:on 810119,containment Cooler 8-inch SRW Discharge valve,1-CV-1593,failed to Open.Caused by Solenoid valve,1-SV-1593,not Allowing 1-CV-1593 to Open.Solenoid Valve Replaced W/Spare & Parts Kit Installed

Event date:
Report date:
3171981004R03 - NRC Website

text

U S. NUCLEAR REGULATORY COMIVISSION NRC FORM 366 (7 77; LICENSEE EVENT REPORT CONTROL BLOCC l l

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REPORT O ATE 80 EVENT oESCRIPTION AND PROBABLE CONSEQUENCES h 10 : 21 l At 0430, during the perfonnance of surveillance testino, #14 containment 1

io iai i cooler 8" SRW Discharce Valve (1-CV-1593) failed to ocen (T.S. 3.6.2.2).

I l o 14 i l The control solenoid valve was replaced, tested and the cooler returned I

io is1 I to service at 2055. De Nonnal (4") Discharce CV and Backuo Manual (8")

I lo is I I Discharoe Valve remained operable durino the event. Al so. three redun-f 1 o 17 l l dant containment coolers _were oper ational.

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JJ 40 41 42 43 44 47 CAUSE oESCRIPT1oN AND CORRECTIVE ACTIONS h 1iio1I Solenoid valve 1-SV-1593 (ASCO 206-381-5RUV) would not vent allowino I

mI l-CV-1593 to ocen. The SV was reolaced with a soare, and the failed I

,,,,,I unit operated properly after a carts kit was installed. No failure f

ii;3i l cause is apparent. The failed SV is a new environmentally cualified unit I

mI recently installed in accordance with Facility Chance Recuest 80-1017.

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LICENSE NO. UPR-53 EVENT DATE 01-19-81 REPORT DATE 02-17-81 ATTACHMENT CAUSE DESCPIPTION AND CORRECTIVE ACTIONS (CONT'D) 1-SV-1593 would not operate. No wear nor signs of binding were found on internal parts. After installation of an appropriate spare parts kit, the valve operatid satisfactorily.

The solenoid valve was installed as a facility change made necessary after engineering review was conducted in accordance with I&E Bulletin 79-UlB.

Installation took place during the recent refueling outage.

No other tailures of this model are known to date. Therefore, no pre-ventive action is deemed necessdry at this time.

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