05000366/LER-1981-039-03, /03L-0:on 810424,drywell Dihydrogen Dioxide Analyzer Recorder Was Found Inoperable.Caused by Analyzer Drift,Due to Faulty & Dirty Regulators.Regulators Cleaned &/Or Replaced.Analyzer Recalibr

/03L-0:on 810424,drywell Dihydrogen Dioxide Analyzer Recorder Was Found Inoperable.Caused by Analyzer Drift,Due to Faulty & Dirty Regulators.Regulators Cleaned &/Or Replaced.Analyzer Recalibr

ML20004B409
Person / Time
Site:	Hatch
Issue date:	05/21/1981
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004B408	List: 05000366/LER-1981-039, Forwards LER 81-039/03L-0 05000366/LER-1981-039-03, /03L-0:on 810424,drywell Dihydrogen Dioxide Analyzer Recorder Was Found Inoperable.Caused by Analyzer Drift,Due to Faulty & Dirty Regulators.Regulators Cleaned &/Or Replaced.Analyzer Recalibr
References
LER-81-039-03L, LER-81-39-3L, NUDOCS 8105280198
Download: ML20004B409 (2)

LER-1981-039, /03L-0:on 810424,drywell Dihydrogen Dioxide Analyzer Recorder Was Found Inoperable.Caused by Analyzer Drift,Due to Faulty & Dirty Regulators.Regulators Cleaned &/Or Replaced.Analyzer Recalibr

Event date:
Report date:
3661981039R03 - NRC Website

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- -- l EVENT DESCRIPTION AND PROBABLE CONSEOuENCES h 19hile operatina at 2421 MWt, 2P33-R601A, Drywell H9-09 Analyzer RecorderJ O 2 twas found to be inoperative.

Tech Specs section 3.3.6.4 requires both I

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The plant was placed ini O 4 The health and safety of the public were not affected.

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lo is] IThis is a repetitive event as last reported on LER 50-366/1981-033.

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40 41 42 43 44 47 27 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS cause of this event has been attributed to analyzer drift as a resul4 i O hhe LLLLJ Inf faultv and dirty reaulators.

The R1 and R2 reaulators were reolaced I 2 1 land the R3 and R4 regulators were cleaned per maintenance request i 2 recalibrated and returned to service.

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50-366/1981-039 Licensce:

Georgia Power Company Facility Name:

Edwin I. Hatch Docket f:

50-366

Narrative

Report for LER 50-366/1981-039 On 4-24-81, while operating at 98% power, 2P33-R601A, drywell H -02 analyzer recorder was found to be inoperative.

Tech 2

Specs section 3.3.6. 4 requires both channels to be operative during lower operation.

The plant was placed in a 30-day LCO.

T11s is a repetitive event as last reported in LER f50-366/1981-033.

The cause of this event has been attributed to analyzer drift as a result of faulty and dirty regulators.

The R1 and R2 regulators were replaced, and the R3 and R4 regulators were cleaned as per maintenance request 2-81-1613.

The cnalyzer was then recalibrated per HNP-2-3882, Consip Delphi Model K-IV Hydrogen and Oxygen Analyzer Functional Test and Calibration, and returned to service.

Plant operation was not affected as a result of this event.

The health and safety of the public were not affected.

A generic review revealed no inherent drift problems.

Unit i does not utilize this type of analyzer.

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