As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) INTERNAL WING FIRE IN LT WING LOCATED IN AREA OF THE BATTERY. DAMAGE TO ELECTRICAL CABLES AND AILERON TRIM CABLES AND PULLEY. SUBMITTER SUSPECTED CAUSE AS IGNITION OF FUEL VAPOR FROM LEAKING/DETERIORATED AUXILIARY FUEL TANKS IN THE WING BEING IGNITED BY THE HOT EXHAUST.