THE LEFT MINER CABLE WAS CAUGHT BETWEEN THE BOOM OF THE MINE AND THE MINE ROOF. EE AND SOME CO-WORKERS WERE ATTEMPTING TO PULL THE BOOM DOWN ENOUGH TO REMOVE THE CABLE. THIS WAS ATTEMPTED BY HOOKING ONE END OF A CHAIN TO THE BOOM OF THE MINER & THE OTHER TO THE SCOOP BUCKET. WHEN PRESSURE APPLIED CHAIN BROKE RESULTING IN THE SCOOP BUCKET DROPPING, BOUNCING EE'S HEAD INTO CANOPY.