As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, SEVERAL CRACKS IN ATTACH FLANGE FOR PANEL ON LT UPPER INBD WING SKIN BETWEEN FRAMES 40-41. MAINTENANCE REMOVED DAMAGED PORTION, FABRICATED NEW ANGLE AND INSTALLED BETWEEN FRAMES 40-40 IAW SRM 51-40-02 AND EC5720-01079. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.