As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NR 3 CYLINDER WAS REMOVED FOR LOW COMPRESSION. THE EXHAUST VALVE GUIDE WAS FOUND TO BE WORN 0.483 MM (0.019 INCH). THE REMAINING CYLINDERS WERE THEN REMOVED AND ALL WERE FOUND TO BE IN A SIMILAR CONDITION. TIME IN SERVICE FOR THE CYLINDERS WAS 55 HRS.