What was found
(AUS) NO4 CYLINDER EXHAUST VALVE FAULTY - FURTHER INVESTIGATION FOUND NO3 CYLINDER EXHAUST VALVE IN SIMILAR CONDITION - METAL CONTAMINATION OF OIL SYSTEM
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AUS) NO4 CYLINDER EXHAUST VALVE FAULTY - FURTHER INVESTIGATION FOUND NO3 CYLINDER EXHAUST VALVE IN SIMILAR CONDITION - METAL CONTAMINATION OF OIL SYSTEM