As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE, TWO AREAS OF CORROSION WERE DISCOVERED ON THE HORIZONTAL FLANGE OF THE UPPER LEFT HAND AFT WING FITTING (P/N 0822550-45.) THESE AREAS OF CORROSION MEASURED .750 BY .250 WITH A DEPTH OF .042, AND .400 BY .250 WITH A DEPTH OF .031. THIS FITTING WILL BE REMOVED AND REPLACED WITH A FACTORY NEW PART.