As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT-WING LEADING-EDGE STRUCTURE: LEADING EDGE 'T' EXTRUSION HAS CORROSION ON THE VERTICAL LEG. LOCATED OUTBOARD OF THE #3 SLAT ANTI-ICE TUBE. CORROSION ON T FITTING BEYOND LIMITS. REMOVED LOWER LEADING EDGE RIB T FITTING FOR REPLACEMENT. DRILLED A REPLACEMENT EXTRUSION IAW SRM 51-40-05. INSTALLED THE TEE FITTING IAW SRM 51-40-02.