What was found
(AUS) RH ENGINE NO4 CYLINDER EXHAUST TAPPET BODY FAILED ALLOWING EXHAUST VALVE TO REMAIN CLOSED
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AUS) RH ENGINE NO4 CYLINDER EXHAUST TAPPET BODY FAILED ALLOWING EXHAUST VALVE TO REMAIN CLOSED