What was found
(AUS) NO3 AND NO4 CYLINDER EXHAUST VALVE GUIDES WORN - AIRCRAFT IS INVOLVED IN PARACHUTING OPERATIONS
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AUS) NO3 AND NO4 CYLINDER EXHAUST VALVE GUIDES WORN - AIRCRAFT IS INVOLVED IN PARACHUTING OPERATIONS