As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY CK / MAJOR REPAIR / LEVEL 2 CORROSION: RT LOWER WING SKIN IS CHAFED AT RIB 13, STR 8-9 ABOUT 12 INCHES FWD OF REAR SPAR CAUSED BY FLAP FAIRING FRETTING ON SKIN. DAMAGE BLENDED PER STRUCTURAL REPAIR INSTRUCTIONS AND SRAS FROM ATR.