Accident type, without injuries
EMPLOYEE WAS COMPLETING A METAL FORM WHICH WAS TO BE FILLED WITH CONCRETE TO SEAL AN AIR SHAFT. WHILE WELDING A SPARK IGNITED METHANE IN THE SHAFT. EMPLOYEE WAS UNINJURED. OPERATOR IS FILING T HIS AS AN IGNITION ONLY.
EMPLOYEE WAS COMPLETING A METAL FORM WHICH WAS TO BE FILLED WITH CONCRETE TO SEAL AN AIR SHAFT. WHILE WELDING A SPARK IGNITED METHANE IN THE SHAFT. EMPLOYEE WAS UNINJURED. OPERATOR IS FILING T HIS AS AN IGNITION ONLY.
DURING CLOSURE OF MINE, EE WAS WELDING CAP ON DEWATERING SHAFT. A METHANE IGNITION OCCURRED, THROWING BOTH EE'S AWAY FROM SHAFT. EE WAS THROWN INTO A CHAIN LINK FENCE AND COULD NOT ESCAPE THE HEAT. (OTHER EE WAS THROWN CLEAR.) METHANE TESTIING WAS PERFORMED.