As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY CHECK COE: MAJOR REPAIR: LT WING REAR SPAR UPPER SLAT STRIP FLANGE BETWEEN RIBS 2 & 4, UPPER AND LOWER SURFACES OF FLANGE ARE CHAFED IN 3 LOCATIONS, TITANIUM BONDING STRIPS ARE WORN THROUGH. BLENDED DAMAGE IAW STRUCTURAL REPAIR INSTRUCTIONS DO/TS-299/10-12830 AND SRM ATR72 CHAPTER 57-12-20 FIG 402. WO 91979 NR 601009.