EE WAS TRAMMING MINER BOOM FIRST INTO A 60 DEGREE CROSSCUT. HE STOPPED THE MINER AND BEGAN TO WALK PAST THE CUTTER DRUM AND SUDDENLY BECAME PINNED BETWEEN THE COAL RIB & THE CUTTER DRUM. HE ST ATED HE DOES NOT KNOW HOW THIS HAPPENED. MAINTENANCE DEPT CHECKED TRAMMING DEVICES ON MINER BUT FOUND NOTHING ABNORMAL. ACTUAL CAUSE IS STILL UNDER INVESTIGATION.