As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY CHECK / MAJOR REPAIR: LEFT UPPER WING CUTOUT FOR PANEL 522CT HAS FRETTING AND LEVEL 2 CORROSION (LENGTH .5", WIDTH 6", DEPTH .44") SUBMIT TO ATR FOR REPAIR INSTRUCTIONS TO TOP OF LEFT WING SKIN CUTOUT WHERE PANEL 522CT SITS BETWEEN BL 1210L - 1625L. REPAIR PER SRAS FROM ATR.