EAST MAINS LEFT SIDE MMU 007 MINER #5 ENTRY. ONT HE EAST MAINS SECTION, APPROX. 50 FT IN THE #5 ENTRY THERE WAS A FRICTIONAL IGNITION THAT WAS LIMITED TO THE PAN AREA OF THE MINER AND LASTED 1 -2 SECONDS. YELLOW ORANGE FLAME SPARKS FROM BITSSTIKING SANDSTONE-ROCK BINDER.