ENS 46873
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ENS Event | |
|---|---|
19:35 May 23, 2011 | |
| Title | Alert Declared Due to Halon Discharge in Emergency Diesel Generator Building |
| Event Description | At 1535 EDT, Brunswick Units 1 & 2 declared an Alert condition due to a discharge of Halon gas into the basement of the emergency diesel generator building (EAL H.A.3.1 for toxic gas discharge into a vital area). Initial inspection indicates that there is no fire. No offsite assistance was required and no personnel injuries as a result of the discharge. Both reactors continue to operate at 100% power. The licensee is investigating the cause of the discharge and will terminate the Alert when the area is ventilated and can be reoccupied.
The licensee has notified State and local authorities and the NRC Resident Inspector.
A later report confirmed that one individual was inside the diesel generator building at the time of the Halon discharge. The individual evacuated the building but complained of chest pains about an hour after the incident. An ambulance was dispatched to transport the individual to the hospital.
The licensee terminated the Alert at 1943 EDT based on restoring normal atmosphere conditions in the emergency diesel generator building. The initiating cause of this event is still being investigated. The NRC Operations Center has notified the federal agencies initially notified of this event. Notified R2DO (Shaeffer), NRR EO (Brown) and IRD (Grant). |
| Where | |
|---|---|
Brunswick  North Carolina (NRC Region 2) | |
| Reporting | |
| Emergency class: | Alert |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.58 h-0.149 days <br />-0.0213 weeks <br />-0.0049 months <br />) | |
| Opened: | David Anderson 16:00 May 23, 2011 |
| NRC Officer: | Dong Park |
| Last Updated: | May 23, 2011 |
| 46873 - NRC Website | |
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 %) |
WEEKMONTHYEARENS 567972023-10-16T02:56:00016 October 2023 02:56:00
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