ENS 47325
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ENS Event | |
|---|---|
18:00 Oct 5, 2011 | |
| Title | Item Relied On For Safety Not As Described In The Integrated Safety Analysis |
| Event Description | During a review of the Integrated Safety Analysis (ISA) for a 3-gallon can elevator used in the Dry Scrap Recycle (DSR) area, it was determined that the ISA incorrectly describes the IROFS used to control movement of SNM. The system is composed of two sequential can elevators that are used to move SNM to different floors. A Fuel Business System (FBS) automated control and associated gate controls are designated as one of the Items Relied On For Safety (IROFS). In the ISA, this IROFS is incorrectly attributed to the 2nd can elevator instead of the 1st can elevator. Based on a review of this condition, determined at approximately 1400 on October 5, 2011, it was determined that the system was different than analyzed in the ISA and resulted in a failure to meet performance requirements.
The FBS and associated gate control were in place at all times on the 1st can elevator, was operating correctly, and supported by management measures. No unsafe condition existed. The ISA and associated documentation are being updated to designate the correct can elevator and associated controls. Operation of the equipment has been suspended pending additional review and implementation of corrective actions. Additional corrective actions and extent of condition are being evaluated. This event is being reported pursuant to the reporting requirements of 10CFR70 Appendix A (b)(1) within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of discovery. The licensee will notify NRC Region 2 and State and local authorities. |
| 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:+19.27 h0.803 days <br />0.115 weeks <br />0.0264 months <br />) | |
| Opened: | Phillip Ollis 13:16 Oct 6, 2011 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Oct 6, 2011 |
| 47325 - 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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