A ROOF FALL WAS FOUND 2 X-CUTS IN BY #2 PORTAL ELEVATOR SHAFT ON THE RIGHT SIDE. FALL NOT OBSTRUCTING VENTILATION OR ESCAPEWAYS. SIZE OF FALL IS APPROX 60' LONG BY 19' WIDE BY 6' HIGH. FALL WILL NOT BE CLEANED UP AND IS POSTED OFF AND DANGERED. FALL IS NEAR SURVEY STATION 14983. AREA BOLTED WITH 6' RESIN BOLTS. CAUSE OF FALL WAS FAILURE OF ROOF BOLTS.