Massey disputes MSHA findings on Upper Big Branch blast
Massey Energy rejects most MSHA theories on the 2010 Upper Big Branch explosion in West Virginia that killed 29 miners. The company argues a natural gas influx from a floor crack caused the blast, not worn tools or coal dust, and questions the reliability of samples and rock dust data used by investigators. Massey cites better airflow and safeguards, while acknowledging some equipment issues and ongoing investigations.
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Massey
MSHA
Upper Big Branch
Morgantown
Massey Energy Co
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West Virginia
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Mine Safety and Health Administration
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Associated Press
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