As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HUB S/N CDA3086 WAS RETURNED FOR COMPLIANCE OF AD-95-01-02 AND SB'S A182A AND A183A. AFTER REMOVAL OF THE PILOT TUBE FROM BLADE ARM NR 3, CORROSION WAS DISCOVERED AT THE BOTTOM OF THE BORE COVERING APPROXIMATELY 25 PERCENT OF THE SURFACE AREA. THE CORROSION WAS REPAIRED AND THE HUB RETURNED TO SERVICE.