ENS 51552
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ENS Event | |
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13:24 Nov 19, 2015 | |
Title | High Pressure Core Spray Declared Inoperable |
Event Description | At 0724 [CST] on 11-19-2015, River Bend Station declared the High Pressure Core Spray System inoperable in accordance with Technical Specification 3.8.9, Condition E (Declare High Pressure Core Spray System and Standby Service Water System Pump 2C inoperable immediately) due to Division 2 Control Room Air Conditioning System Chiller HVK-CHL1D being inoperable due to a significant lube oil leak. HVK-CHL1D tripped on Low Lube Oil Differential Pressure. Division 1 Control Building Air Conditioning System Standby Chiller HVK-CHL1A automatically started as expected.
Actions taken to exit LCO [Limiting Condition of Operation]: Operators alternated to HVK-CHL1B in standby. The licensee notified the NRC Resident Inspector. |
Where | |
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River Bend Louisiana (NRC Region 4) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+-1.55 h-0.0646 days <br />-0.00923 weeks <br />-0.00212 months <br />) | |
Opened: | Ben Huffman 11:51 Nov 19, 2015 |
NRC Officer: | John Shoemaker |
Last Updated: | Nov 19, 2015 |
51552 - 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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