05000338/LER-1980-030-03, /03L-0:on 800227,during Normal Operation,B Gaseous Waste Filter Charcoal Adsorber Was Operated for 934-h W/O Lab Analysis of Carbon Sample.Caused by 720-h Limit Not Being Included in Operator Log After Timer Installation

/03L-0:on 800227,during Normal Operation,B Gaseous Waste Filter Charcoal Adsorber Was Operated for 934-h W/O Lab Analysis of Carbon Sample.Caused by 720-h Limit Not Being Included in Operator Log After Timer Installation

ML19309B172
Person / Time
Site:	North Anna
Issue date:	03/28/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309B171	List: 05000338/LER-1980-030, Forwards LER 80-030/03L-0 05000338/LER-1980-030-03, /03L-0:on 800227,during Normal Operation,B Gaseous Waste Filter Charcoal Adsorber Was Operated for 934-h W/O Lab Analysis of Carbon Sample.Caused by 720-h Limit Not Being Included in Operator Log After Timer Installation
References
LER-80-030-03L, LER-80-30-3L, NUDOCS 8004030226
Download: ML19309B172 (2)

LER-1980-030, /03L-0:on 800227,during Normal Operation,B Gaseous Waste Filter Charcoal Adsorber Was Operated for 934-h W/O Lab Analysis of Carbon Sample.Caused by 720-h Limit Not Being Included in Operator Log After Timer Installation

Event date:
Report date:
3381980030R03 - NRC Website

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EVENT DATE 74 75 REPORT DAT E 80 EVENT DESCRIPTION AND PROHABLE CONSEQUENCES h O 2 l During normal operation at 100% power, the "B" gaseoits waste filter charcoal adcorber l l0 l3; l was operated for greater than 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> (934 hours0.0108 days <br />0.259 hours <br />0.00154 weeks <br />3.55387e-4 months <br /> total) without a laboratory analysib l0 l4 ] l of a representative carbon sample being performed.

Since the "A" gaseous waste filte rl l0isl l was immediately placed into service when the error was discovered, the health and safeky O s I of the general public were not af fected.

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Description of Event

On February 27, 1980, during normal operation at 100% power, it was discovered that the "B" gaseous vaste filter charcoal adsorber was operated for greater than 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> (934 hours0.0108 days <br />0.259 hours <br />0.00154 weeks <br />3.55387e-4 months <br /> total) without perfonaing a laboratory analysis of a carbon sample as required by T.S. 4.6.4.3.C.

Probabic Consequence of Occurrence

--- The consequences of this event were-limited..because the redundant. "A"..

gaseous waste filter was placed into operation as soon as it was discovered that the surveillance interval of the "B" filter had been exceeded.

As a result, the health and safety of the general public were not af fected.

There are no generic implications associated with this occurrence.

Cause of Event

The time limit was passed because the charcoal filter timers, which integrate the amount of time the filters operate, were only recently installed by a design change and the 720 hour0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> surveillance requirement for the carbon sample analysis was never included in the operators' logs.

Immediate Corrective Action

The "B" gaseous waster filter was isolated and the "A" filter was put into service.

The charcoal in the "B" filter was then replaced and a fecon leak test to check adsorber ef ficiency was performed satisfactorily.

Scheduled Corrective Action No corrective action is required.

Actions Taken to Prevent Recurrence Operators' logs and applicable periodic test procedures have been revised to include the 720 hour0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> surveillance requirement for the charcoal filters.