ENS 52811
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ENS Event | |
|---|---|
21:00 Jun 16, 2017 | |
| Title | Unanalyzed Condition Identified |
| Event Description | At 1700 EDT on June 16, 2017 it was determined that an unanalyzed condition was identified that failed to meet performance criteria. This report is conservatively being made in accordance with 10CFR70 Appendix A (b)(1).
In the powder process, a non-radioactive additive is added to a can of uranium in a hood. A previous process hazard analysis (PHA) determined that a criticality in the associated HEPA filters was not credible during this step. A recent update to a criticality analysis identified a potential condition where small amounts of uranium could build up in the HEPA filter over decades. The ISA [Integrated Safety Analysis] team met and decided that current safety controls will need to be implemented as IROFS [items relied on for safety] to assure that performance criteria are met. The operation is currently shut down and no unsafe condition existed. Safety Significance of Events: At no time was an unsafe condition present. Safety Equipment Status: The operation was shutdown. Status of Corrective Actions: Additional corrective actions, extent of condition, and extent of cause are being investigated. |
| Where | |
|---|---|
| Global Nuclear Fuel - Americas Wilmington, North Carolina (NRC Region 2) | |
| License number: | SNM-1097 |
| Reporting | |
| Part 70 App A (B)(1) | |
| Time - Person (Reporting Time:+-2.67 h-0.111 days <br />-0.0159 weeks <br />-0.00366 months <br />) | |
| Opened: | Phillip Ollis 18:20 Jun 16, 2017 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Jun 16, 2017 |
| 52811 - NRC Website
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Global Nuclear Fuel with Part 70 App A (B)(1) | |
WEEKMONTHYEARENS 528112017-06-16T21:00:00016 June 2017 21:00:00
[Table view]Part 70 App A (B)(1) Unanalyzed Condition Identified ENS 507502015-01-21T20:00:00021 January 2015 20:00:00 Part 70 App A (B)(1) Dry Conversion Process Improperly Analyzed in the Current Integrated Safety Analysis ENS 502762014-07-12T21:30:00012 July 2014 21:30:00 Part 70 App A (B)(1) Items Relied on for Safety Associated with the Dry Scrap Recycle Operations Not Meeting Requirements ENS 487092013-01-30T20:30:00030 January 2013 20:30:00 Part 70 App A (B)(1) Completion of Integrated Safety Analysis Action Plan Balance of Plant Milestone ENS 486952013-01-22T20:30:00022 January 2013 20:30:00 Part 70 App A (B)(1) Unanalyzed Condition - Based on Ongoing Integrated Analysis Review ENS 485542012-12-03T18:30:0003 December 2012 18:30:00 Part 70 App A (B)(1) Items Relied on for Safety Associated with the Dry Scrap Recycle Furnace Improperly Analyzed ENS 484972012-11-09T16:00:0009 November 2012 16:00:00 Part 70 App A (B)(1) Unanalyzed Condition - System As-Found Condition Not Fully Described in Isa ENS 477052012-02-27T19:30:00027 February 2012 19:30:00 Part 70 App A (B)(1) Unanalyzed Piping Configuration Discovered ENS 473252011-10-05T18:00:0005 October 2011 18:00:00 Part 70 App A (B)(1) Item Relied on for Safety Not as Described in the Integrated Safety Analysis ENS 467102011-03-29T14:00:00029 March 2011 14:00:00 Part 70 App A (B)(1) Completion of Isa Action Plan Conversion Milestone ENS 463052010-10-02T17:30:0002 October 2010 17:30:00 Part 70 App A (B)(1) Unanalyzed Condition When Fuel Pellet Boats Became Stacked ENS 462432010-09-09T18:30:0009 September 2010 18:30:00 Part 70 App A (B)(1) Accident Evaluation Improperly Analyzed in the Integrated Safety Analysis ENS 457172010-02-23T16:00:00023 February 2010 16:00:00 Part 70 App A (B)(1) Unanalyzed Condition - Incomplete List of Safety Controls in Integrated Safety Analysis Summary ENS 454912009-11-11T20:00:00011 November 2009 20:00:00 Part 70 App A (B)(1) Incomplete Documentation of Criticality Safety Controls in Integrated Safety Analysis Summary 2017-06-16T21:00:00 | |
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