As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXTREME CORROSION FOUND ON PARTS INSIDE PROP HUB POST OVERHAUL WITH LESS THAN 40 HOURS FROM OVERHAUL. OPERATOR SUSPECTS UNAPPROVED PARTS MAY HAVE BEEN USED AND REPLACEMENT KIT PARTS NOT REPLACED IAW MANDATORY REPLACEMENT KIT MANUAL PROCEDURES.