As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUBMITTER DISCOVERED RUDDER MADE NOISE DURING MOVEMENT. FOUND RUDDER TRIM TAB BOUND AT HINGE DUE TO LACK OF LUBRICATION AND DEEP INTERGRANULAR CORROSION. PIANO HINGE HAD TO BE CUT OFF TAB IN SMALL PIECES THEN NEW HINGE (FORWARD) RIVETED ON. NOTE: AIRCRAFT WAS PREVIOUSLY LOCATED IN CORROSIVE ENVIRONMENT AND RECENTLY PAINTED.