What was found
SHIP 6819 STA 440 STR 30 SKIN PILLOWED AND POPPED RIVET HEADS AT BUTT SPLICE. CORRECTIVE ACTION: REMOVED FASTENERS TO GAIN ACCESS TO PILLOWED SKIN. CLEANED AREA AND SKINS. REMOVED TAPERED SHIM. FOUND SHIM TO BE CORRODED. PERFORMED DETAILED VISUAL INSPECTION OF SURROUNDING AREA IAW TOP 40-10-10. DAMAGE/CORROSION CONTAINED TO SHIM REF ABOVE. FABRICATED SHIM OF 2024-T3 PER DWG. INSTALLED REMOVED SHIM AND FASTENERS PER DWG AND B757 SRM. INSTALLED SHIM PER DWG AND B757 SRM. (5283054)