IT IS BELIEVED THAT TWO METHANE IGNITIONS HAVE OCCURRED ON THE C-3 LONGWALL FACE WITHIN A SHORT TIME PERIOD. WHAT WAS BELIEVED TO BE THE FI5RST IGNITION OCCURRED IN THE AREA OF SHIELD NO. 35, AS THE SHEARER WAS MINING FROM THE TAIL TOWARD THE HEADGATE. THE SECOND IGNITION OCCURRED AT SHIELD NO. 30. NO METHANE WAS DETECTED IN THE AREA UPON INVESTIGATION OF THE INCIDENT.