As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A 2 INCH CRACK WAS FOUND TO THE WING CENTER SECTION REAR SPAR AT STA 540, RBL 6.15 VERTICAL STIFFENER DURING A WALKAROUND INSPECTION. AN INTERIM REPAIR WAS INSTALLED PER EA 5714-01002, REV C, OP 8 AND ECRA 5714-01011. A DIP WAS ISSUED TO REINSPECT THE STIFFENER EVERY 4500 FLIGHT CYCLES AND TO REPLACE BOTH STIFFENERS (RBL 6.15 AND LBL 6.15) WITHIN 15,000 FLIGHT CYCLES.