6 SECTION EE'S WERE WELDING BIT LUGS ON MINER HEAD. THEY HAD WELDED 2 LUGS ON WHEN EVE SHIFT GOT TO SECTION. THEY WERE GATHERING TOOLS TO LEAVE WHEN CO-WORKER NOTICED A BLUE FLAME UNDER MINER HEAD. IT WAS ABOUT THE SIZE OF AN EGG AND 1"" HIGH. EE TOOK WATER AND PUT IT OUT. BURN TIME JUST A FEW SECONDS.