ROOF FALL OCCURED AT AN INTERSECTION IN MITAL 16 BETWEEN D-SEALS AND FAN. ORIGINALLY BOLTED WITH 36""CONVENTIONAL BOLTS, REBOLTED WITH 48""FULLY GROUTED ROOF BOLTS. REASON FELL, WEATHER SLATE & SHALE TOP WITH WATER PRESENT IN MINE ROOF. THIS AREA WAS DEVELOPED IN DECEMBER OF 1965.