State mine safety director, Eugene White, says there are conflicting accounts of the 2012 accident in federal and state reports.
White says the Office of Miners' Health, Safety and Training plans to contact federal investigators about the accident at Alpha Natural Resources' Liberty plant in Boone County
Clyde Dolin of Danville was killed on May 17, 2012, when he fell from a ladder.
In a December report, federal investigators said that Dolin was using a ladder extension without a base.
The report says an Alpha foreman helped steady the ladder while Dolin climbed it.
White says state investigators had no record of the foreman holding the ladder.
