ON 3-16-01 AN IGNITION OCCURRED ON THE FACE OF THE 2NE LONGWALL. THE SHEARER WAS CUTTING FROM THE TAIL TO THE HEAD. AT SHIELD #182 THE HEAD DRUM HIT A CHERT ROLL THAT CAME DOWN INTO THE COAL S EAM APPROX. 8"". WHEN THE BITS HIT THE CHERT A SMALL IGNITION OCCURRED. A FLAME THE SIZE OF A BASKETBALL WAS OBSERVED.