05000324/LER-1980-063-03, /03L-0:on 800918,while Inerting Drywell, Primary Containment Gaseous Analyzer 2-CAC-AT-1259 Found Tracking Improperly.Caused by Instrument Drift.Analyzer Recalibr.Mod Written to Replace Monitors

/03L-0:on 800918,while Inerting Drywell, Primary Containment Gaseous Analyzer 2-CAC-AT-1259 Found Tracking Improperly.Caused by Instrument Drift.Analyzer Recalibr.Mod Written to Replace Monitors

ML19340B231
Person / Time
Site:	Brunswick
Issue date:	10/13/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19340B222	List: 05000324/LER-1980-063, Forwards LER 80-063/03L-0 05000324/LER-1980-063-03, /03L-0:on 800918,while Inerting Drywell, Primary Containment Gaseous Analyzer 2-CAC-AT-1259 Found Tracking Improperly.Caused by Instrument Drift.Analyzer Recalibr.Mod Written to Replace Monitors
References
LER-80-063-03L-01, LER-80-63-3L-1, NUDOCS 8010210680
Download: ML19340B231 (2)

LER-1980-063, /03L-0:on 800918,while Inerting Drywell, Primary Containment Gaseous Analyzer 2-CAC-AT-1259 Found Tracking Improperly.Caused by Instrument Drift.Analyzer Recalibr.Mod Written to Replace Monitors

Event date:
Report date:
3241980063R03 - NRC Website

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8 60 61 COCKET GUMBER 68 69 EVENT OATE 74 7S PEPORT OATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h Al During normal operation while inerting the drvwell, the primary containment gaseous l l

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analyzer, 2-CAC-AT-1259, was observed tracking improperly. Similar events involving l 0 4 l

this type analyzer have been reported in the past. This event did not affect the l

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F578 } l Technical Specifications 3.6,6.4, 6.9.1.9b l

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O l The analyzer was found out of. calibration due to instrument drif t.

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calibrated according to a plant approved maintenance instruction and was I

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O LER ATTACIDENT - RO NO. 2-80 Facility: BSEP Unit No. 2 Event Date:

9-18-80 i

Due to a history of problems involving this type of analyzer, a plant modification has been written to replace these monitors with more reliable monitors. The re-placement equipment is scheduled to arrive in February 1981 and will be installed during the first available outage following receipt. These analyzers are currently calibrated on a biweekly basis in an effort to maintain proper operation until the replacement equipment is installed.

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