ENS Event | |
|---|---|
06:00 Mar 13, 2015 | |
| Title | Fuel Assembly Mis-Oriented Resulting in a Unanalyzed Condition |
| Event Description | On March 13, 2015 at 0100 [CDT], it was identified that fuel assembly QAD224 was mis-oriented 180 degrees at core location 51-40. The intended orientation was [southeast]. However the assembly was identified as being [northwest]. This issue was identified during the core verification process. In the current core configuration, there is not a bounding analysis that assures adequate Shutdown Margin.
This event is reportable under 50.72(b)(3)(ii) as an unanalyzed condition that significantly degraded plant safety. The NRC Resident Inspector has been notified.
The purpose of this notification is to retract the ENS notification made on March 13, 2015 (ENS 50882). An evaluation has determined that Shutdown Margin was met with the mis-oriented fuel bundle. Therefore, the threshold for reporting the issue as a degraded or unanalyzed condition was not met (NUREG 1022 Revision 3 - Event Report Guidelines Section 3.2.7). The NRC Resident Inspector has been notified. Notified the R3DO (Skowkowski). |
| Where | |
|---|---|
Quad Cities  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition | |
| Time - Person (Reporting Time:+2.72 h0.113 days <br />0.0162 weeks <br />0.00373 months <br />) | |
| Opened: | Al Meurs 08:43 Mar 13, 2015 |
| NRC Officer: | Vince Klco |
| Last Updated: | Apr 7, 2015 |
| 50882 - NRC Website
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WEEKMONTHYEARENS 532352018-03-01T18:10:0001 March 2018 18:10:00
[Table view]10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition En Revision Imported Date 11/8/2019 ENS 508822015-03-13T06:00:00013 March 2015 06:00:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Fuel Assembly Mis-Oriented Resulting in a Unanalyzed Condition ENS 450922009-05-25T21:50:00025 May 2009 21:50:00 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition Inoperable Rcic Primary Containment Isolation Valves ENS 413692005-02-04T00:19:0004 February 2005 00:19:00 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition 4160 Volt Relaying and Metering Single Failure Vulnerability 2018-03-01T18:10:00 | |