What was found
CORROSION ON THE LEFT WING #4 SLAT INBOARD AUXILIARY TRACK, OUTBOARD LOWER STRUT. THE STRUT WAS REPLACED. THE AIRPLANE WAS GROUNDED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CORROSION ON THE LEFT WING #4 SLAT INBOARD AUXILIARY TRACK, OUTBOARD LOWER STRUT. THE STRUT WAS REPLACED. THE AIRPLANE WAS GROUNDED.