As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PROPELLER REMOVED FROM AC FOR 10 YR. O/H. UPON VISUAL INSPECTION OF THE HUB CORROSION WAS FOUND ON THE MOUNTING FLANGE AND O-RING GROOVE OF THE REAR HUB HALF. THIS CORROSION IS BEYOND REPAIRABLE LIMITS. MANUFACTURERS RECCOMENDED TBO IS 2000 HOURS OR 72 MONTHS. THIS PROPELLER HAS EXCEDED THE RECOMMENDED CALENDAR TBO BY 48 MONTHS.