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Stuck safety pressure vent valve followed by an unbelievable number of operator errors, mostly caused by their refusal to admit that the indicator saying that valve was still open was actually right.

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Q: What was the accident on the three mile island?
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We've all heard of the nuclear accident at Three Mile Island but what state is Three Mile Island in?

Pennsylvania


1979 nuclear accident site?

Three Mile Island.


Where was the Pennsylvania nuclear plant accident site?

Three Mile Island.


What event caused the United states to slow its construction of nuclear power plants in the 1980s?

Americans felt less safe after the accident at Three Mile Island. - APEX.


Where and when did the nuclear meltdown at three mile island happen?

The Three Mile Island accident was a nuclear meltdown which occurred at the Three Mile Island power plant in Dauphin County, Pennsylvania, United States on March 28, 1979.


Why did the US slow it's construction of nuclear power plants in the 1980's?

Americans felt less safe after the accident at Three Mile Island.


What changes have been made to Three Mile Island since the accident?

dolphin


What country did the three mile island accident happen?

United States. In Pennsylvania.


What event caused the United States to slow H construction of nuclear power plants in the 1980s?

The Three Mile Island accident in 1979


Why wsd three mile island important?

Three mile island was the site of the worst nuclear 'accident' in america's history. The reactor went into meltdown - releasing radioactive material into the atmosphere.


Where is the Location of 1979 nuclear accident in the US take place?

Three Mile Island The accident at the Three Mile Island Unit 2 (TMI-2) nuclear power plant near Middletown, Pennsylvania occurred on March 28, 1979.


How many times has Three Mile Island been evacuated?

The area around Three Mile Island (TMI) was only evacuated once during the accident that began on 28 March 1979.