A ROOF FALL OCCURRED IN THE INTERSECTION OF #4 TO #5 XCUT 25'INBY SURVEY STATION #419. LENGTH 70', WIDTH 18', HEIGHT 12-13'. A COAL SEAM CAME DOWN TO WITHIN 8 1/2' OF THE ROOF AND A LARGE UNDE TECTED SLIP CAUSED THE FAILURE. AREA WAS BOLTED WITH 6 & 8 FOOT FULLY GROUTED RODS AND 12 FOOT CABLE BOLTS.