A ROOF FALL WAS FOUND DURING THE WEEKLY AIR COURSE EXAMINATION AT 9+40 BETWEEN #6 & #7 WEST. THE FALL EXTENDED INTO THE INTERSECTION OF #7 WEST. THE FALL WAS 35'LONG X 16'WIDE X 15'HIGH. THE AREA WAS SUPPORTED WITH 6'FULLY GROUTED RESIN BOLTS. WATER WEAKNENING THE IMMEDIATE TOP WAS DETERMINED AS THE CAUSE. THE AREA WAS DANGERED OUT & TIMBERED.