As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE C/W AD 63-07-03 AND SB 213 WHICH REQUIRES INSPECTION OF THE RUDDER TRIM TAB HORN AND ATTACHMENT AREA SKIN, CRACKS WERE DISCOVERED IN SEVERAL RIVET HOLES AS WELL AS A MODERATE AMOUNT OF DISSIMILAR METAL CORROSION AND PITTING. WHILE REPAIRING THE ABOVE DISCREPANCIES, CRACKS WERE ALSO FOUND IN THE RIB AREA.