What was found
DURING COMPLIANCE OF SB (RUDDER FLIGHT CONTROLS) TORQUE TUBE ASSEMBLY AND ASSOCIATED RIBS WERE NOTED TO BE NON-REPAIRABLE. CORROSION PRESENT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING COMPLIANCE OF SB (RUDDER FLIGHT CONTROLS) TORQUE TUBE ASSEMBLY AND ASSOCIATED RIBS WERE NOTED TO BE NON-REPAIRABLE. CORROSION PRESENT.