05000255/LER-1979-031-03, /03X-1 on 790628:uncontrolled Release of Gases Occurred During Power Reduction.Caused by Removal of Relief Valve for Repair.Valve Repaired & Replaced

/03X-1 on 790628:uncontrolled Release of Gases Occurred During Power Reduction.Caused by Removal of Relief Valve for Repair.Valve Repaired & Replaced

ML19273C106
Person / Time
Site:	Palisades
Issue date:	08/20/1979
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A975	List: 05000255/LER-1979-025-01, /01X-1 on 790619:heat Transfer Coefficients of Component Cooling Water Heat Exchanger Were Less than Required.Caused by Fouled Tube Sides.Tubes Will Be Cleaned More Frequently 05000255/LER-1979-031-03, /03X-1 on 790628:uncontrolled Release of Gases Occurred During Power Reduction.Caused by Removal of Relief Valve for Repair.Valve Repaired & Replaced ML18043A974
References
LER-79-031-03X, LER-79-31-3X, NUDOCS 7908270396
Download: ML19273C106 (1)

LER-1979-031, /03X-1 on 790628:uncontrolled Release of Gases Occurred During Power Reduction.Caused by Removal of Relief Valve for Repair.Valve Repaired & Replaced

Event date:
Report date:
2551979031R03 - NRC Website

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UPDATE REPORT: PREVIOUS REPORT DATE 07/31/79 PALISADES NRC FORhs 354 U. S. NUCLEAR REQULATORY Cohn.ettssON cm LICENSEE EVENT REPORT CONTROL SLOCC l l l l l l l (PLEAgg PRtNT cm Tyrg ALL Rggplagc INFOR.AATIONI i

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EvawT cEscRirfioN ANo FRCSASLE CONSEQUENCES h (TTTI l An uncontrolled release of fission gases occurred during pc..er reduction. 1 Total release time was 225 minutes, l'otal release was 19 Ci of Xe-133 andi i

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o 4 Annual Average Release Rates. Event *eportable per TS 6.9 2.b(4).

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2 CAUSE DESCRIPT1CN AND CORRECTIVE ACTIONS 27 IDuring PCS diversion due to high level in the VCI, uncontrolled release or i i

o g ifission gases occurred to the aux. building at=osphere through an cuening i

m 1 caused by a relief valve being re=oved from T-1013 ('4ITI) for repair.

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