As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NR 7 CYLINDER EXHAUST VALVE PUSHROD BENT AND PUSHROD SHROUDDAMAGED CAUSING OIL LEAK. INVESTIGATION FOUND THE VALVE STEM CAP SEPARATED AND THE PISTON SUFFERING FROM SLIGHT IMPACT DAMAGE WITH THE EXHAUST VALVE. METAL CONTAMINATION OF OIL FILTER.