05000260/LER-1982-031-03, /03L-0:on 821004,while Performing Source & Background Check of Reactor & Turbine Bldg Vent Monitor, Charcoal Filter Found Out of Place.Caused by Personnel Error.Filter Replaced.Incident Discussed W/Personnel

/03L-0:on 821004,while Performing Source & Background Check of Reactor & Turbine Bldg Vent Monitor, Charcoal Filter Found Out of Place.Caused by Personnel Error.Filter Replaced.Incident Discussed W/Personnel

ML20027D696
Person / Time
Site:	Browns Ferry
Issue date:	10/29/1982
From:	Thorpe D TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20027D690	List: 05000260/LER-1982-031, Forwards LER 82-031/03L-0 05000260/LER-1982-031-03, /03L-0:on 821004,while Performing Source & Background Check of Reactor & Turbine Bldg Vent Monitor, Charcoal Filter Found Out of Place.Caused by Personnel Error.Filter Replaced.Incident Discussed W/Personnel
References
LER-82-031-03L-03, LER-82-31-3L-3, NUDOCS 8211080252
Download: ML20027D696 (2)

LER-1982-031, /03L-0:on 821004,while Performing Source & Background Check of Reactor & Turbine Bldg Vent Monitor, Charcoal Filter Found Out of Place.Caused by Personnel Error.Filter Replaced.Incident Discussed W/Personnel

Event date:
Report date:
2601982031R03 - NRC Website

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EVEfJT DESCHIPTIOfJ A JD PROUA Ec.'

tJ NCES gl While performinR source and background check of the reactor and turbine building g

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gl vent monitor, charcoal filter was found to be out of place (T.S. 3.8.B.6)".

Sampling gl requirements were not met for about 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Last authorized removal of filter y

,gl was at 1240 on 10/3/82.

There was no effect on public health and safety. -Monitor y

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gl was still capable of detecting iodines. A review of SI 4.8.B.l.a.1 indicated no y

gl signicant releases. There are no redundant systems.

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)) Cause was personnel error in leaving the filter out of the CAM.

Filter was replaced I

af ter source and background check was completed at 1246 on 10-4-82.

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2/17/82 LER SUFPLEMENTAL INFORMATION BFRO 260 / 82031 Technical Specification Involved 3.8.B.6 i

Reported Under Technic.al Specification 6.7.2.b.(2) Date Due NRC 11/03/82 5

Event Narrative:

Unit 1 was operating at 98-percent power, unit 2 was in a refueling outage, and unit 3 was operating at 98-percent power. Only unit 2 was affected by the event.

During the daily source and background check of continuous air monitor (CAM) 2-90-250, personnel discovered the. charcoal filter was not in place. This caused l

the CAM to operate in a degraded mode (T.S. 3.8.B.6).

Last authorized removal of the filter was at 1240 on October 3,1982 during routine perfomance of background and source check procedure. Therefore, the filter must be assumed to have been out of the CAM for a maximum 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The halogen channel was still capable of detecting iodine, though in a less sensitive manner.. A review of SI 4.8.B.1.a.1 indicated no significant releases for the 2-90-250 CAM or for any of the other CAM's during this period. There was no effect on public health and safety. There are no redundant systems. The cause of this event was personnel error. The event has been discussed with the individual involved..Upon discovery the filter was replaced. This is considered an isolated occurrence and.

no further recurrence control is required.

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