As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) PROPELLER HUB THREADS FAILED EDDY CURRENT INSPECTION - NO2 BLADE LOOSE IN HUB DUE TO BLADE NUT NOT BEING TORQUED AT LAST ASSEMBLY (SUSPECT AT INITIAL ASSEMBLY AT FACTORY APPROXIMATELY 20 YEARSPREVIOUSLY) - PERSONNEL/MAINTENANCE ERROR