As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) ENGINE CYLINDER LEAKING OIL AT BARREL TO HEAD JOINT AND BETWEEN FIRST AND SECOND BOTTOM FINS ON BARREL AREAS. CYLINDER WAS REMOVED AND A PENETRANT CHECK FOUND A CRACK 40MM (1.57 INCH) IN LENGTH (INSIDE) AT THE BARREL TO HEAD JOINT. PART TC: 1,327.