ENS 42589
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ENS Event | |
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18:23 May 18, 2006 | |
Title | Postulated Flooding That Could Impact Both Trains of the Residual Heat Removal (Rhr) System |
Event Description | At 1323 the Shift Manger was notified of a flooding concern that could impact both trains of the Residual Heat Removal (RHR) System. At this time both trains of RHR were declared inoperable and actions were taken to isolate the lines that could flood the RHR Pump Pits, The lines in question were from the Spent Fuel Pool Cleanup system specifically associated with the Spent Fuel Pool Dernineralizers and the Pre-filters and Post-filters. These lines were Isolated at 1345. Spent Fuel Pool cooling remained in service following isolation of the Spent Fuel Pool Cleanup system. Both RHR trains were returned to service at 1345.
Initial piping analysis determined that these lines would have remained intact during and following a seismic event. The final evaluation s expected to be completed within two weeks. The NRC Resident Inspector was notified of this event by the licensee. |
Where | |
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Kewaunee Wisconsin (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor | |
Time - Person (Reporting Time:+2.98 h0.124 days <br />0.0177 weeks <br />0.00408 months <br />) | |
Opened: | Scott Cieslewicz 21:22 May 18, 2006 |
NRC Officer: | John Mackinnon |
Last Updated: | May 18, 2006 |
42589 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Hot Shutdown (0 %) |
After | Hot Shutdown (0 %) |
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