ENS 55205
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ENS Event | |
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16:25 Apr 22, 2021 | |
Title | Inadvertant Activation of Emergency Sirens |
Event Description | At 0925 Mountain Standard Time (MST) on April 22, 2021, Palo Verde Nuclear Generating Station staff received reports that Emergency Notification sirens were activated. Current information indicates that the inadvertent activation of the sirens was caused by an offsite agency during performance of a planned silent test that occurred at approximately 0916 MST. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi).
All sirens remain functional, and the NRC Resident Inspectors have been notified of the issue. Additional notifications will be made as needed. |
Where | |
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Palo Verde Arizona (NRC Region 4) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+-0.73 h-0.0304 days <br />-0.00435 weeks <br />-9.99954e-4 months <br />) | |
Opened: | Diego Gil-Azamar 15:41 Apr 22, 2021 |
NRC Officer: | Solomon Sahle |
Last Updated: | Apr 22, 2021 |
55205 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 2 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 3 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Power Operation (0 %) |
After | Power Operation (0 %) |
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