ENS 47030
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ENS Event | |
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19:10 Jul 6, 2011 | |
Title | Control Room Emergency Ventilation Ac System Inoperable |
Event Description | On July 6, 2011 at 1410, the Control Room Emergency Ventilation Air Conditioning (CREV AC) system was declared inoperable due to unsatisfactory performance, high vibration condition of the air conditioning compressor. As a result, Technical Specification 3.7.5 condition A was entered.
The CREV AC system maintains a habitable control room environment and ensures the operability of components in the control room emergency zone during accident conditions. This notification is being made in accordance with 10 CFR 50.72(b)(3)(v)(D) because the CREV system is a single train system, and loss of the CREV AC could impact the plant's ability to mitigate the consequences of an accident. The licensee has notified the NRC Resident Inspector. |
Where | |
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Quad Cities Illinois (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
LER: | 05000254/LER-2011-003 |
Time - Person (Reporting Time:+0.22 h0.00917 days <br />0.00131 weeks <br />3.01356e-4 months <br />) | |
Opened: | Terry Gallentine 19:23 Jul 6, 2011 |
NRC Officer: | Charles Teal |
Last Updated: | Jul 6, 2011 |
47030 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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