CHECKING TO SEE WHY THE SILO COAL #1 BELT WAS DOWN AND FOUND A FLAG HAD BEEN ENGAGED. AS HE TURNED TO RESET THE FLAG HE TRIPPED OVER A BEAM THAT WAS PART OF THE BELT STRUCTURE AT THE BELT TRAN SFER FROM RAW COAL #1 BELT. HE FELL AND STRUCK THE CONCRETE ON THE TOP OF THE RAW COAL SILO RESULTING IN A FRACTURE TO HIS RIGHT ARM.