As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: C. WHILE CARRYING OUT REPAIR TO LEADING EDGE AT WS 349 ON RT WING, CORROSION FOUND ON UPPER SURFACE OF FRONT SPAR UPPER CHORD. REPAIR CARRIED OUT PER BOEING INSTRUCTIONS. SEE SRS EO 96-35-005 REFERENCE UPS REPAIR AUTHORIZATION ENGINEERING FILE NUMBER 727-57-17 43.