ENS 50463
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ENS Event | |
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00:05 Sep 17, 2014 | |
Title | Loss Of Division 3 Of Shutdown Service Water Requires Hpcs To Be Declared Inoperable |
Event Description | At 1905 hours0.022 days <br />0.529 hours <br />0.00315 weeks <br />7.248525e-4 months <br /> (CDT), during surveillance testing of the Division 3 Shutdown Service Water (SX) system, the Division 3 SX pump tripped for unknown reasons. The Division 3 SX system was declared inoperable and in accordance with Technical Specification 3.7.2, Action A, the High Pressure Core Spray (HPCS) system was declared inoperable. Since the HPCS system is a single train safety system, this event is reportable under 10CFR50.72(b)(3)(v)(D). An investigation is underway to determine the cause of SX pump to trip.
The NRC Resident [Inspector] has been notified. |
Where | |
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Clinton Illinois (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+-0.75 h-0.0313 days <br />-0.00446 weeks <br />-0.00103 months <br />) | |
Opened: | Luke Echols 23:20 Sep 16, 2014 |
NRC Officer: | Jeff Rotton |
Last Updated: | Sep 16, 2014 |
50463 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (97 %) |
After | Power Operation (97 %) |
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