IN THE BOX CANYON MAINS SECTION, ENTRY 5, CROSSCUT 54 TO 55, THE CONTINUOUS MINER OPERATOR WAS GRADING FLOOR INTO THE FACE. AS THE CUTTING HEAD APPROACHED THE FACE, A METHANE FEEDER WAS IGNITED APPARENTLY WHEN WATER PRESSURE WAS LOST TO THE CONTINUOUS MINER. THE FLAME WAS IMMEDIATELY EXTINGUISHED WITH ONE FIRE EXTINGUISHER. NO INJ. OR PROPERTY DMG. OCCURRED.