As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING INSP OF FIN ATTACH BRACKET NUT PLATES IAW AD 80-11-04 CRACKS WERE DISCOVERED RUNNING ALONG THE BEND RADIUS OF THE WELDED BRACKET. THE AD ALLOWS FOR REMOVING REPETATIVE INSP REQUIREMENTS IF THE NUT PLATES ARE DRILLED OFF AND REPLACED WITH FIBERLOCKING NUTS. ALTHOUGH THE AD MAY NO LONGER MAY BE APPLIABLE IN SOME ACFT THE ENTIRE WELDED BRACKET SHOULD BE INSPECTED CLOSELY EVERY 100-HRS.