As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NR 5 CYLINDER EXHAUST CAM LOBE WAS WORN BEYOND MANUFACTURER'S SPECIFICATIONS. THE LOBE WAS EXCESSIVELY WORN FROM WHAT APPEARS TO BE METAL FATIGUE. FAULT FOUND DURING SCHEDULED 1000 HOUR INSPECTION. THE ENGINE WAS FACTORY OVERHAULED ON THE 15NOV96.