Friday, September 21, 2012

Pump malfunction caused shutdown at Three Mile Island Nuclear Power Plant, Pennsylvania

A malfunctioning pump caused an automatic shutdown of the Three Mile Island nuclear power plant Thursday, the second such event in as many months.


Plant officials and government regulators said the shutdown at the plant, where a partial meltdown of a reactor in 1979 is considered the worst commercial nuclear power plant accident in U.S history, posed no threat to public health or safety.

The shutdown occurred shortly after 2:15 p.m. ,when the failure of a coolant pump tripped the computerized system that shuts downs the reactor in the event of any safety-related problems.

Once the reactor has cooled down enough, plant workers will be able to access the containment building and troubleshoot the problem, Nuclear Regulatory Commission spokesman Neil Sheehan said. Read More