CONTINUOUS MINER WAS MINING IN #2 ENTRY ON #2 UNIT. HE HAD MINED THE RIGHT SIDE AND HAD SET OVER AND WAS MINING THE LEFT SIDE AND WAS IN ABOUT 17-18 FT. OPERATOR SAW THE GLOW AROUND THE DRUM AND STOPPED CUTTING & THE GLOW DISAPPEARED. MINING CONDITIONS CONSISTED OF MINING ROCK & SULPHER BOLLS ABOVE THE COAL SEAM.