What was found
DURING SCHEDULED WING VISUAL INSPECTION PEELING PAINT AND CORROSION WHITE POWDER WAS SEEN AT THE MATING AREA OF THE OUTBOARD LT WING TRAILING EDGE BOX WHERE THE BOX ATTACHES TO THE WING. THIS AREA IS JUST OUTBOARD OF THE LEFT AILERON. HALFWAY OUTBOARD ON THE TOP SURFACE OF THE WING IS WHERE PEELING PAINT AND WHITE POWDER WAS DISCOVERED WHERE SEALANT IS APPLIED BETWEEN WING AND TRAILING EDGE MATING SURFACE.