As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION FOUND WEB OUTER SURFACE CORRODED AROUND FASTENERS ON LEFT AND RIGHT SIDES AT WING CENTER SECTION, FS 790 LOWER TORQUE BOX AT KEEL AREA. THE CORRODED WEB SECTION WAS CUT OUT AND A NEW WEB SECTION WAS INSTALLED IAW SRM 51-40-2.