05000321/LER-1980-073-03, /03L-0:on 800624,w/reactor at 100% Power,Drywell to Torus Temp Recorder Noted Not Stamping or Changing Position.Caused by Faulty Stepping Advance & Chart Drive Motors.Repaired & Replaced Motors

/03L-0:on 800624,w/reactor at 100% Power,Drywell to Torus Temp Recorder Noted Not Stamping or Changing Position.Caused by Faulty Stepping Advance & Chart Drive Motors.Repaired & Replaced Motors

ML19320C621
Person / Time
Site:	Hatch
Issue date:	07/08/1980
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19320C612	List: 05000321/LER-1980-073, Forwards LER 80-073/03L-0 05000321/LER-1980-073-03, /03L-0:on 800624,w/reactor at 100% Power,Drywell to Torus Temp Recorder Noted Not Stamping or Changing Position.Caused by Faulty Stepping Advance & Chart Drive Motors.Repaired & Replaced Motors
References
LER-80-073-03L-01, LER-80-73-3L-1, NUDOCS 8007170463
Download: ML19320C621 (2)

LER-1980-073, /03L-0:on 800624,w/reactor at 100% Power,Drywell to Torus Temp Recorder Noted Not Stamping or Changing Position.Caused by Faulty Stepping Advance & Chart Drive Motors.Repaired & Replaced Motors

Event date:
Report date:
3211980073R03 - NRC Website

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LICENSEE EVENT REPORT l

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EVENT DESCRIPTION AND Pi40B ABLE CONSEQUENCES h j

While the reactor was at 100*. steady state in power, drywell to torus gl or l

temperature recorder,1T47-R612, was discovered to be not stamping gl changing positions. There was no effect upon the environs.

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No. 50-321/1980-071.

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NARRATIVE

REPORT Georgia Power Company Plant E. I. Ilatch Baxley, Georgia 31513 Reportable Occurrence Report No. 50-321/1980-073 While operations was making shift check of recorders in the control room, the drywell to torus temperature recorder 1T47-R612, was discovered to be not stamping or changing positions.

Operations determined that drywell to torus temperature recorder, IT47-R612, had malfunctioned.

This occurred while the reactor was at 100t steady state in power.

Operation of the plant was not affected and there was no effect on the environs.

This is a re-petitive event as last reported on Reportable Occurrence Report 50-321/1980-071.

The cause of the event has been attributed to the failure of stepping ad-vance and chart drive motor.

Drywell to torus temperature recorder, 1T47-RG12, was repaired and returned to service satisfactorily.

Only Unit I utilizes this type recorder, Taylor 2142J Strip Chart Recorder.

The generic review revealed no inherent problems.

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