ROCKFALL AT SPAD # 4290 ON 2 LEFT MAINS IN # 2 NEUTRAL ENTRY 8 BREAKS BELOW # 3 DRIVE. FALL STARTED IN NEUTRAL & RODE OVER TO BELTLINE & CAUGHT ABOUT 1/2 OF THE BELT. FALL WAS APPX 18-20'WIDE, ABOUT 130' LONG & APPX 6-12'HIGH. BOLTED WITH 4' RESIN BOLTS & APPEARS TO BE AN UNDETECTED FAULT AREA WITH SOME PRESSURE FROM BLOCKS OF COAL LEFT IN THE HIGHSPLINT SEAM ABOVE.