A FRICTION CAUSED METHANE IGNITION, IT OCCURED ON THE LONGWALL PANEL 50 FACE BETWEEN 171 & 172 SHIELDS. METHANE WAS IGNITED BY FRICTION WHEN THE SHEARER STRUCK A PYRETIC INTRUSION LOCATED BETWEEN THE MAIN COAL SEAM & THE DRAW SLATE DIRECTLY ABOVE A DEGAS HOLE LOCATED 1 1/2 FEET FROM THE MINE BOTTOM. A RED/ORANGE FLAME, 2 - 3' LONG BURNED APPROX. 45 SECONDS BEFORE EXTINGUISHED.