05000220/LER-1979-020-03, /03L-0:on 790901,during Steady State Operation, Drywell Cooler 14 Tripped & Leakage Increased to Above Five G/Minute.Caused by Cooler Tube Leak.Cooler Isolated & Returned to Acceptable Level.Shutdown Terminated

/03L-0:on 790901,during Steady State Operation, Drywell Cooler 14 Tripped & Leakage Increased to Above Five G/Minute.Caused by Cooler Tube Leak.Cooler Isolated & Returned to Acceptable Level.Shutdown Terminated

ML18037A198
Person / Time
Site:	Nine Mile Point
Issue date:	09/10/1979
From:	Duda E NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18037A196	List: 05000220/LER-1979-019-03, /03L-0:on 790816,during Steady State Operation, Routine Mgt Review Disclosed Failure to Complete Five Surveillance Tests on Schedule.Tests Immediately Performed & Completed.Personnel Instructed to Follow Published Schedule 05000220/LER-1979-020-03, /03L-0:on 790901,during Steady State Operation, Drywell Cooler 14 Tripped & Leakage Increased to Above Five G/Minute.Caused by Cooler Tube Leak.Cooler Isolated & Returned to Acceptable Level.Shutdown Terminated ML18037A195
References
LER-79-020-03L, LER-79-20-3L, NUDOCS 7909170521
Download: ML18037A198 (2)

LER-1979-020, /03L-0:on 790901,during Steady State Operation, Drywell Cooler 14 Tripped & Leakage Increased to Above Five G/Minute.Caused by Cooler Tube Leak.Cooler Isolated & Returned to Acceptable Level.Shutdown Terminated

Event date:
Report date:
2201979020R03 - NRC Website

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DISCOVERY DESCRIPTION Q32 Equi pment failure METHOD OF DISCOVERY

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