UNINTENTIONAL ROOF FALL IN THE #8 WEST ROOMS OFF OF THE 6TH NORTH PANEL IN THE INTERSECTION OF #11 ENTRY & STATION #1960. FALL OCCURRD INBY THE BELT TAIL & IS 25' WIDE X 25' LONG, 6'- 8' HIGH. THE AREA WAS BOLTED WITH 3' CONVENTIONAL PINS & 5' CONVENTIONAL PINS.