As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) ENGINE MUFFLER TO OVERBOARD PIPE WELDED JOINT CRACKED - SCORCHINGOF LOWER COWL IN AREA OF CRACK - A NEW EXHAUST MUFFLER HAD BEENFITTED AT THE LAST PERIODIC INSPECTION 8 HOURS PREVIOUS - SUSPECT PIPE CONTACTED COWL IN AREA OF CUTOUT - PERSONNEL/MAINTENANCEERROR