What was found
LH WING UPPER SKIN HAS CORROSION AFT OF VORTEX GENERATOR BETWEEN RIBS 22 AND 23. NOMINAL THICKNESS .080" OUT OF LIMITS (REF EMB120 SRM 57-20-01 AND 57-00-01 REV 58). CUTOUT BLENDED AREA (IAW EMB120 SRM 57-20-01 REV 58). LAYED OUT AND FABIRCATED DOUBLER FROM .080" 2024T3. INSTALLED DOUBLER (PER EMB ETD 2019-120-101457 REV 1). APPLIED FILLER SEAL TO DOUBLER, CAP SEALED FASTENERS WITHIN FUEL TANK AND RESTORED ORIGINAL FINISHING OF THE REPAIR AREA (PER EMB ETD 2019-120-101457 AND EMB120 SRM 51-22-00 REV 58).