30-year-old David Hardman of Pampa, Texas, died Sunday afternoon.
Authority spokesman Justin Alberty said Hardan was working at the Grand River Energy Center, a thermal-generation power plant near Chouteau Oklahoma, when he fell nearly 30 feet inside the plant.
Hardman was temporarily employed at the facility as part of the contracting crew.
The incident remains under investigation.
Story provided by Amarillo News Channel 10.
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