As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) LEFT AND RIGHT WING UPPER SPARS CONTAINED SEVERE INTERGRANNULAR CORROSION. ON THE LT WING A SECTION OF THE REAR HINGE HAD BEEN REMOVED WITH NO MATERIAL REPLACED. ON THE RT WING A SUSPECT REPAIR HAD BEEN CARRIED OUT WITH A DOUBLER ADDED. SUBMITTER SUSPECTED UNAPPROVED REPAIRS.