As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NR 2 CYLINDER CONNECTING ROD BROKEN. CRANKCASE HOLED IN THE AREA BELOW THE MAGNETOS. NR 2 CYLINDER AND THE SURROUNDING AREA DAMAGED. SUBMMITTER SUSPECTED CAUSED BY INCOMPATIBILITY BETWEEN THE CYLINDER BORE SURFACE TREATMENT AND THE PISTON RING MATERIAL.