Three Mile Island accident

Three Mile Island accident

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  • Three Mile Island Documentary: Nuclear Power's Promise and Peril | Retro Report | The New York Times

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  • March 28, 1979​: ​​​Three Mile Island nuclear power plant accident

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The Three Mile Island accident began with failures in the non-nuclear secondary system, followed by a stuck-open pilot-operated relief valve in the primary system, which allowed large amounts of nuclear reactor coolant to escape. As a result, new regulations for the nuclear industry were adopted.

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