As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NR 4 CYLINDER CONNECTING ROD BEARING FAILED. METAL CONTAMINATION OF OIL SYSTEM. SUSPECT CAUSED BY INCORRECT CRANKSHAFT BEING INSTALLED IN THE ENGINE. LTIO-540-J2BD CRANKSHAFT INSTALLED INSTEAD OF TIO-540-J2BD CRANKSHAFT. CRANKSHAFTS HAVE THE OIL PASSAGES FOR THE CONNECTING RODS IN DIFFERENT LOCATIONS.