2A SECTION, #3 ENTRY - A DUST IGNITION OCCURRED IN THE FACE. A YELLOW/ORANGE FLAME WAS OBSERVED 5' TO 6' OFF THE RIGHT RIBLINE OVER THE MINER HEAD. THE FLAME SELF-EXTINGUISHED & WAS OF SHORT D URATION (2 TO 3 SECONDS). THE INVESTIGATION REVEALED SULFUR DEPOSITS IN THE COAL SEAM. NO INJURIES.