As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HAND WING LOWER STIFFENER AT APPROXIMATELY XOS 542 FOUND CRACK. LEFT HAND WING LOWER AT APPROXIMATELY XOS 542 CRACKED STIFFENER REMOVED AND REPLACED AS PER SRM 51-31-01-OG. STIFFENER FABRICATED AS PER DOUGLAS DRAWING ARB 2918 REVISION G. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.