Natural gas leaked from a defective fitting at a Pennsylvania chocolate factory where a powerful explosion leveled one building, heavily damaged another and killed seven people, federal safety ...

Deadly Chocolate Factory Explosion Caused by Faulty Gas Fitting, Safety Board Finds Cascading failures involving a corroded steam pipe and a defective natural gas fitting caused a powerful explosion ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Natural gas leaked from a defective fitting ...

(AP) - Natural gas leaked from a defective fitting at a Pennsylvania chocolate factory where a powerful explosion leveled one building, heavily damaged another and killed seven people, federal safety ...

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