ENS 47962
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ENS Event | |
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20:30 May 24, 2012 | |
Title | Missing Flooding Barrier Inside East Switchgear Room |
Event Description | On 5/24/12, it was identified that a conduit flood seal was missing between an outside manhole and the interior of the switchgear rooms. The missing flood seal compromised the interior flooding design for both East and West Switchgear Rooms. Repairs were made by procuring and installing a 4" flood seal so that the flood path has been plugged. The conduit plug seal is now functional.
The event is being reported under 10CFR 50.72(b)(3)(v) as internal flooding of both Switchgear Rooms could possibly affect (a.)safe shutdown, (b.)removal of decay heat, (c.)control of release of radioactive material and (d.)mitigating an accident. The NRC Resident Inspector has been notified. |
Where | |
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Vermont Yankee File:NorthStar Vermont Yankee icon.png Vermont (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+1.48 h0.0617 days <br />0.00881 weeks <br />0.00203 months <br />) | |
Opened: | Thomas Roberts 21:59 May 24, 2012 |
NRC Officer: | Joe O'Hara |
Last Updated: | May 24, 2012 |
47962 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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