ON 6/26/01 EE WAS DIGGING THE BINDER OFF THE COAL WHEN A SLAB OF BINDER BROKE FREE CAUSING THE LOADER BUCKET TO HIT THE HIGHWALL CAUSING PAIN IN LOWER PART OF HIS BACK. ATTACHED MEDICAL INFO RMATION SHOWS THIS AGGRAVATED A CHRONIC OR PRIORCONDITION. EE WAS PREVIOUSLY TREATED FOR LOW BACK IN 1994,1998, & 1999.