FALL OF ROOF OR BACK at Graymont (PA) Inc.
The fall occurred in the 17 East X 33 South intersection. The size was aprox. 50' X 75' x !2' deep. This was a known problem area and was blocked off Friday night prior to the fall. The fall occurred on an off shift and was reported as soon as it was determined to be reportable. The fall did not impede passage, effect ventilation, cause personel injury or damage equipment.
U.S. Mine Safety and Health Administration