As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROPELLER WAS RECEIVED FOR O/H WITH EXCESSIVE GREASE LEAKAGE FROM ALL BLADES. WHEN PROP WAS DISASSEMBLED, THE HUB UNIT WAS FILLED WITH EXCESSIVE AMOUNTS OF GREASE. UPON FURTHER INSPECTION, THE GREASE WAS FOUND TO CONTAIN SEVERAL PIECES OF THE BLADE BEARING RACE. THE BEARING RACE WAS SHATTERED INTO SEVERAL SMALL PIECES. THE SHATTERED BEARING CAUSED DAMAGED TO THE HUB RETENTION AREA.