ENS 42179
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ENS Event | |
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21:00 Nov 30, 2005 | |
Title | Control Room Emergency Ventilation Ac System Inoperable |
Event Description | On November 30, 2005, at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br />, the Control Room Emergency Ventilation Air Conditioning (CREV AC) system was declared inoperable due to failure of the associated 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 informed 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 | |
Time - Person (Reporting Time:+0.9 h0.0375 days <br />0.00536 weeks <br />0.00123 months <br />) | |
Opened: | Ron Schroeder 21:54 Nov 30, 2005 |
NRC Officer: | Steve Sandin |
Last Updated: | Nov 30, 2005 |
42179 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (97 %) |
After | Power Operation (97 %) |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (96 %) |
After | Power Operation (96 %) |
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