As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 3 ENGINE FUEL AND IGN CUTOFF SWITCH WOULD NOT SHUT OFF, USED TANK VALVE LATCH TO SECURE ENG. RESIDUAL FUEL IN LINES CAUSED A TAIL PIPE FIRE. SPUN ENGINE UNTIL FIRE EXTINGUISHED. FIRE DEPARTMENT WAS CALLED BUT THEY WHERE NOT NEEDED. REPLACED ENGINE.