What was found
DURING C-4 CHECK INSPECTION, FOUND LEFT HAND TRAILING EDGE WING JUST OUTBOARD OF OUTBOARD AILERON IS CRACKED IN RADIUS. STOP DRILLED CRACK, FABRICATED REPAIR AS PER AIA EER D8-05082. TREATED AND PRIMED AS PER SRM 51-1-8 AND INSTALLED REPAIR IAW AIA EER D8-05082. CORROSION CARD NR 115L-0551, NON-ROUTINE TASK CARD NR 87286.