05000366/LER-1979-103-03, /03L-0:on 790907,drywell Average Air Temp Rose to 145.8 F While Maint Personnel Were Adjusting Flow to Lower Drywell Temp.Temp Increase Caused by Suspected Steam Leak. Flow Increased to Reduce Drywell Average Temp

/03L-0:on 790907,drywell Average Air Temp Rose to 145.8 F While Maint Personnel Were Adjusting Flow to Lower Drywell Temp.Temp Increase Caused by Suspected Steam Leak. Flow Increased to Reduce Drywell Average Temp

ML19208D434
Person / Time
Site:	Hatch
Issue date:	09/19/1979
From:	Baxley S GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19208D433	List: 05000366/LER-1979-103, Forwards LER 79-103/03L-0 05000366/LER-1979-103-03, /03L-0:on 790907,drywell Average Air Temp Rose to 145.8 F While Maint Personnel Were Adjusting Flow to Lower Drywell Temp.Temp Increase Caused by Suspected Steam Leak. Flow Increased to Reduce Drywell Average Temp
References
LER-79-103-03L, LER-79-103-3L, NUDOCS 7909280419
Download: ML19208D434 (2)

LER-1979-103, /03L-0:on 790907,drywell Average Air Temp Rose to 145.8 F While Maint Personnel Were Adjusting Flow to Lower Drywell Temp.Temp Increase Caused by Suspected Steam Leak. Flow Increased to Reduce Drywell Average Temp

Event date:
Report date:
3661979103R03 - NRC Website

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_ pi 1 [During norr.al power operation drywell average air temperature was increasing because j

19h] Lof a suspected steam leaW Phile mainten1nce oersonnel were adjusting flow the averareJ

_ pgTG [ dry.tell temperature reached 145.8 degrees F.

Systc a flow uns readjusted and tcmpera-ture was returned to T. S. 3.6.1.7. limits.

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9 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS _:

First unit was restarted and returned to service.

Drywell temperature recched 145.75 degrees'F.

Within two hours of the deviation the dryviell temperature was returned to within Technical Specification limits.

Drywell entry on 9-9-79 confirmed that a steam leak existed in drywell on flange at 2B21-00ll.

Leak was repaired vhile unit was down.

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