As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) PROPELLER SPINNER SUPPORT FAILED - SPINNER BULKHEAD CRACKED - THIS IS THE SECOND SIMILAR OCCURRENCE ON THIS AIRCRAFT (LAST TIMEIN AUGUST 1992) - SUSPECT CAUSED COMBINATION OF OUT OF BALANCE PROPELLER AND LOSS OF PRELOAD DUE TO EXCESSIVE HOURS BETWEEN INSPECTIONS