ENS 43637
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ENS Event | |
|---|---|
15:30 Sep 12, 2007 | |
| Title | Moderation Control Item Relied on for Safety Degradation |
| Event Description | During an investigation of an unusual sinter test measurement result, it was determined that one of the Items Relied On For Safety (IROFS), as documented in the [Integrated Safety Analysis] (ISA) summary, had degraded. This report is submitted for administrative reporting pursuant to 10 CFR 70.50 Appendix A (b)(2).
The IROFS described for the moderation control of the powder additive at the Dry Conversion Process (DCP) blender operation did not function as required because of an error that occurred at the Dry Scrap Recycle (DSR) container transfer station. At no time did an Unsafe condition exist. The existing criticality safety analysis of the operation bounded the situation, was effective and was not challenged. The container transfer station operation is shut down pending completion of an investigation and implementation of corrective actions. |
| Where | |
|---|---|
| Global Nuclear Fuel - Americas Wilmington, North Carolina (NRC Region 2) | |
| License number: | SNM-1097 |
| Reporting | |
| Part 70 App A (B)(2) | |
| Time - Person (Reporting Time:+18.18 h0.758 days <br />0.108 weeks <br />0.0249 months <br />) | |
| Opened: | Scott Murray 09:41 Sep 13, 2007 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Sep 13, 2007 |
| 43637 - NRC Website
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Global Nuclear Fuel with Part 70 App A (B)(2) | |
WEEKMONTHYEARENS 562562022-12-02T20:30:0002 December 2022 20:30:00
[Table view]Part 70 App A (B)(2) Fuel Cycle Facility - Loss or Degradation of Safety Items ENS 533312018-04-12T23:00:00012 April 2018 23:00:00 Part 70 App A (B)(2) Potentially Degraded Items Relied on for Safety ENS 522512016-09-19T10:00:00019 September 2016 10:00:00 Part 70 App A (B)(2) Uf6 Scrubber Exhaust System Not Operating as Required ENS 516622016-01-19T02:00:00019 January 2016 02:00:00 Part 70 App A (B)(2) Accumulation of Uranium Oxide Powder in the Dry Scrap Recycle Furnace Off-Gas System ENS 499692014-03-28T17:30:00028 March 2014 17:30:00 Part 70 App A (B)(2), Part 70 App A (A)(4) Items Relied on for Safety Not Operable ENS 480382012-06-19T21:00:00019 June 2012 21:00:00 Part 70 App A (B)(2) Degradation of Safety Equipment ENS 480572012-02-13T13:20:00013 February 2012 13:20:00 Part 70 App A (B)(2) Mass Control Limit Exceeded ENS 466692011-03-10T14:15:00010 March 2011 14:15:00 Part 70 App A (B)(2) Malfunctioning Valve Leads to a Loss of Defense in Depth ENS 464862010-12-16T15:44:00016 December 2010 15:44:00 Part 70 App A (B)(2) Both Hf Detectors in Ghs Test Loop Failed to Be Available and Operable ENS 462442010-09-10T14:00:00010 September 2010 14:00:00 Part 70 App A (B)(2) Degradation of Safety Equipment ENS 461682010-01-25T13:50:00025 January 2010 13:50:00 Part 70 App A (B)(2) Degradation of an Item Relied on for Safety ENS 436372007-09-12T15:30:00012 September 2007 15:30:00 Part 70 App A (B)(2) Moderation Control Item Relied on for Safety Degradation 2022-12-02T20:30:00 | |
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