EE & ANOTHER EE WERE LOWERING A COAL MILL DOOR FROM AN UPRIGHT POSITION WHEN THE LOAD SHIFTED CAUSING THE GANTRY TO TIP THE FALLING GANTRY STRUCK EE IN THE CHEST BEFORE PINNING HIS LEG BETWEEN GANTRY & CONCRETE FLOOR. HE WAS AIRLIFTED TO ARROWHEAD REGIONAL MED CTR & DIAGNOSED WITH THE INJURIES LISTED BELOW