As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND RUDDER TORQUE TUBE WITH CORROSION ON TUBE AND SURROUNDING ALUMINUM RIB. FOUND DURING INSPECTION IAW SB1105. PROBABLE CAUSE IS DISSIMILAR METAL CORROSION. CLOSERER INSPECTION DURING EVENT 1 INSPECTIONS. REPAIRS REQUIRED REPLACEMENT OF THE TORQUE TUBE AND TWO RIBS.