‘No indications of a radiological release’ | Arkansas Nuclear One reports automatic reactor shutdown

[Marlin]

'No indications of a radiological release' | Arkansas Nuclear One reports automatic reactor shutdown after lightning strike

https://www.5newsonline.com/article/tech/science/arkansas-nuclear-one-reports-reactor-shutdown-lightning-strike/527-18537ff6-e902-45e3-a126-f3cddca1712a

[Core Content]

Entergy Operations reported an automatic trip at Arkansas Nuclear One Unit 2 following a nearby lightning strike that cut power to all reactor coolant pumps. Backup emergency feedwater systems and diesel generators responded immediately, while operators manually restored service water. The facility safely entered hot standby without any radiological release.

Arkansas Nuclear One in Russellville reported an automatic reactor trip in Unit 2 after a lightning strike near the station on Nov. 3.

According to an event notification report posted by the Nuclear Regulatory Commission, the plant's operator, Entergy Operations, reported that the automatic reactor trip occurred after all reactor coolant pumps lost power following the lightning strike Tuesday morning.

Backup cooling systems activated automatically, with the plant's emergency feedwater system supplying water to the two steam generators. Emergency diesel generators also started automatically, but they were not needed because the plant's vital electrical systems continued receiving power from an offsite source.

Related coverage at Yahoo News:
https://www.yahoo.com/news/science/articles/no-indications-radiological-release-arkansas-181237061.html