A ROOF FALL OCCURRED IN THE #4 ENTRY AT #50 XCUT OF THE 005-0 SECTION IN THE 4 WEST PANEL. FALL WAS APPROX. 20'X 20'X 8'HIGH. FALL OCCURRED IN THE INTERSECTION AT THE SECTION BELT FEEDER, CAT CHING THE INBY DUMPING POINT OF THE FEEDER. THE AREA HAD BEEN PREVIOUSLY BOLTED WITH 5'HI-TECH BOLTS, SPOTTED WITH 8'& 12' SUPER BOLTS, WITH RIB BOLTS AND STRAPS.