arkansasnuclearone


Fatal Accident at Arkansas Nuclear One

, director, Nuclear Safety Project

 Role of Regulation in Nuclear Plant Safety #11

The Fatal Accident

As described in Fission Stories #139 and illustrated in Fission Stories #181, a temporary crane removing a component weighing 525 tons on March 31, 2013, in the turbine building of the Unit 1 reactor at Arkansas Nuclear One near Russellville, AR collapsed. The dropped load struck the turbine building floor with considerable force, then rolled and fell through an opening to cause further damage on a lower floor. One worker was killed and eight others injured by the accident. Read more >

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Nuclear Safety inFLEXibility

, director, Nuclear Safety Project

Disaster by Design/Safety by Intent #23

Disaster by Design

Among the actions taken by the Nuclear Regulatory Commission (NRC) in response to the March 11, 2011, accident at Fukushima was to issue an order on March 12, 2012, to all U.S. nuclear plant owners requiring them to procure equipment and implement measures to enable their facilities to cope with an extended loss of normal and backup power supplies to emergency equipment. Read more >

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Nuclear Power(less) Plants

, director, Nuclear Safety Project

Disaster by Design/Safety by Intent #3

Disaster by Design

The primary purpose of commercial nuclear power plants in the U.S. is to generate electricity. When not fulfilling that role, nuclear power plants that are shut down require electricity to run the equipment needed to prevent the irradiated fuel in the reactor core and spent fuel pool from damage by overheating. The March 2011 accident at Fukushima Daiichi in Japan graphically illustrated what can happen when nuclear plants do not get the electricity they require. Read more >

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Arkansas Nuclear One: Pictures of an Accident

, director, Nuclear Safety Project

Fission Stories #181

The drop of a heavy load at the Arkansas Nuclear One nuclear plant on March 31, 2013, was described in Fission Stories #139 based largely on the report on the accident by the NRC’s augmented inspection team. The NRC recently released hundreds of photographs taken of the heavy load, the damage it inflicted when dropped, and the extensive repairs undertaken at the plant. Read more >

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NRC: Obstructing Justice?

, director, Nuclear Safety Project

Fission Stories #176

On June 23, 2014, NRC issued two yellow findings, the second most serious among the agency’s four color-coded sanctions, to the owner of the Arkansas Nuclear One plant for violations identified during a March 31, 2014, fatal accident.

My mistake. That fatal accident did not occur in March 2014. It happened on March 31, 2013—or “only” 449 days before the NRC issued the applicable sanctions.

What took the NRC so long?

Read more >

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