EE ALONG WITH OTHER CO-WORKERS WERE TRYING TO GET A SKIRT RUBBER OFF A TAILPIECE. HE HAD AHOLD OF THE RUBBER WITH CHANNEL LOCKS, THE LOCKS SLIPPED AND HE LOST HIS BALANCE FALLING BACKWARDS. HE RAISED HIS ARMS UP IN THE AIR AND STRUCK A ROOFBOLT PLATE. CAUSE OF THE INJURY WAS AWARENESS AND NOT USING PROPER TOOLS. COMPLIANCE NOT AN ISSUE, MINER KNOWLEDGE A FACTOR.