ENS 49524: Difference between revisions
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| event date = 11/08/2013 10:45 PST | | event date = 11/08/2013 10:45 PST | ||
| last update date = 11/08/2013 | | last update date = 11/08/2013 | ||
| title = Apparent Deterioration | | title = Apparent Deterioration of Primary and Secondary Hepa Filters | ||
| event text = On November 8, 2013, at approximately 1045 PST, an Air Balance Technician at AREVA NP's Richland fuel fabrication plant discovered that the primary and secondary HEPA filters servicing the ammonium diuranate (ADU) area showed visible signs of deterioration. The apparent deterioration is being reported in accordance with 10 CFR 70.50(b)(2). | | event text = On November 8, 2013, at approximately 1045 PST, an Air Balance Technician at AREVA NP's Richland fuel fabrication plant discovered that the primary and secondary HEPA filters servicing the ammonium diuranate (ADU) area showed visible signs of deterioration. The apparent deterioration is being reported in accordance with 10 CFR 70.50(b)(2). | ||
The K-32A HEPA filters were examined by air balance personnel at approximately 1045 PST on November 8, 2013 based on a request to follow-up on some stack monitoring results which indicated some elevated levels (still below required administrative action levels). Air flow was diverted to HEPA filters in a parallel upper housing in order to check the filters in the lower housing. Investigation showed apparent deterioration of both the primary and final HEPA filters. | The K-32A HEPA filters were examined by air balance personnel at approximately 1045 PST on November 8, 2013 based on a request to follow-up on some stack monitoring results which indicated some elevated levels (still below required administrative action levels). Air flow was diverted to HEPA filters in a parallel upper housing in order to check the filters in the lower housing. Investigation showed apparent deterioration of both the primary and final HEPA filters. | ||
Revision as of 20:52, 1 March 2018
| Where | |
|---|---|
| Areva Np Inc Richland Richland, Washington (NRC Region 2) | |
| License number: | Snm-1227 |
| Reporting | |
| 10 CFR 70.50(b)(2) | |
| Time - Person (Reporting Time:+-0.58 h-0.0242 days <br />-0.00345 weeks <br />-7.94484e-4 months <br />) | |
| Opened: | Robert Link 18:10 Nov 8, 2013 |
| NRC Officer: | Daniel Mills |
| Last Updated: | Nov 8, 2013 |
| 49524 - NRC Website | |