A miner entered a feed hopper to remove bolts on the skirt board. When he heard a bull dozer that typically pushes material into the hopper approaching, the miner tried to escape through the opening at the bottom of the hopper. The bull dozer pushed material into the hopper, unaware that the miner was inside, burying him up to his...
Permit-Required Confined Space Alert – Hopper (MSHA)
