ENS 47269
ENS Event | |
|---|---|
19:30 Sep 14, 2011 | |
| Title | 24 Hour Report Due to Double Contingency Not Maintained |
| Event Description | During a GNF-A Fuel Manufacturing Operation (FMO) Integrated Safety Analysis (ISA) team walk-down of HVAC systems in the decontamination facility area, it was observed that a log entry for a waste-oil can mass was greater than the limit specified in procedural requirements.
Upon further investigation it was determined at 3:30PM on September 14, 2011 that an operator had incorrectly processed a waste oil can with a gross weight in excess of the limit specified by criticality safety requirements. This resulted in a condition where one of the two controls on mass documented as being necessary to meet double contingency had not been maintained. The second criticality control on mass was maintained at all times. At no time was an unsafe condition present, however the decontamination oil processing area was shut down until necessary controls were available. This event is being conservatively reported pursuant to GNF-A internal procedure reporting requirements 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 inform the state and local agencies and the NRC Region II Office of this incident.
The incorrect processing of the waste oil can as reported on 9/15/11 resulted in a failure to meet the performance requirement of 10CFR70.61 and as a result, met the reporting requirements of 10CFR70 Appendix A(b)(2) [and 10CFR70.74]. Notified R2DO (Guthrie) and NMSS EO (McCartin).
An extent of condition review has identified two additional cans that were improperly processed with a gross weight over the 9.58 kg gross weight limit specified in procedural requirements. March 2, 2011 9.66 kg July 13, 2009 9.65 kg At no time was an unsafe condition present. The decontamination oil processing area remains shutdown. Notified R2DO (Lesser) and NMSS (Benner). |
| Where | |
|---|---|
| Global Nuclear Fuel - Americas Wilmington, North Carolina (NRC Region 2) | |
| License number: | SNM-1097 |
| Reporting | |
| Other Unspec Reqmnt 10 CFR 70.74 APP. A | |
| Time - Person (Reporting Time:+19.25 h0.802 days <br />0.115 weeks <br />0.0264 months <br />) | |
| Opened: | Scott P. Murray 14:45 Sep 15, 2011 |
| NRC Officer: | Dan Livermore |
| Last Updated: | Sep 23, 2011 |
| 47269 - NRC Website
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Global Nuclear Fuel with Other Unspec Reqmnt, 10 CFR 70.74 APP. A | |
WEEKMONTHYEARENS 478292012-04-12T12:00:00012 April 2012 12:00:00
[Table view]Other Unspec Reqmnt Internal Reporting Requirement for Criticality Safety Controls ENS 473802011-10-26T19:00:00026 October 2011 19:00:00 Other Unspec Reqmnt Loss of Double Contingency ENS 472692011-09-14T19:30:00014 September 2011 19:30:00 Other Unspec Reqmnt, 10 CFR 70.74 APP. A 24 Hour Report Due to Double Contingency Not Maintained ENS 472652011-09-13T18:45:00013 September 2011 18:45:00 Other Unspec Reqmnt 24-Hour Report Involving Potential Failure to Maintain Double Contingency Criteria ENS 472252011-08-30T20:00:00030 August 2011 20:00:00 10 CFR 70.74 APP. A Completion of Action Plan (Fabrication) Milestone ENS 471612011-08-16T16:00:00016 August 2011 16:00:00 Other Unspec Reqmnt Improper Criticality Safety Evaluation ENS 466632011-03-08T05:00:0008 March 2011 05:00:00 Other Unspec Reqmnt Gnf Procedure 40-32 Loss of a Single Material Control Transaction ENS 466502011-03-01T20:00:0001 March 2011 20:00:00 Other Unspec Reqmnt Failure to Maintain Mass Control of Uo2 Powder ENS 459762010-06-04T13:30:0004 June 2010 13:30:00 Other Unspec Reqmnt Active Criticality Controls Not in Irofs ENS 457852010-03-22T13:30:00022 March 2010 13:30:00 10 CFR 70.74 APP. A Loss of One of Two Required Contingency Controls 2012-04-12T12:00:00 | |