As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING TRAILING EDGE PANEL SUPPORT BEAM ABOVE LEFT WHEEL WELL JUST AFT OF LANDING GEAR BEAM ASSY. CORROSION AROUND NUT PLATES. FABRICATED SUPPORT BEAM PER BOEING DWG 113T1633 MATERIAL BAC 1506-23-7075T6511 P/O 407827679. ACFT WAS GROUNDED.