AN ALLEDGED IGNITION OCCURRED ON THE 6 NORTH MAINS SECTION, 088 MMU, 0 ENTRY APPROXIMATELY 115 FEET. EMPLOYEE STATED HE SAW AN ORANGE FLAME 1 TO 1 1/2 FEET FROM LEFT COB, ABOUT 12"" IN DIAMETER, LASTING 1 TO 2 SECONDS. SELF-EXTINGUISHING. NO INJURIES OR DAMAGE.