As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) WING FITTINGS/STIFFENERS CONTAINED EXFOLIATED INTERGRANNULAR CORROSION - DURING FITTING REPLACEMENT EXTENSIVE CORROSION WAS ALSO FOUND IN LOWER WING STRINGERS PARTICULARLY IN AREA UNDER FUEL CELL BAYS - AIRCRAFT PREVIOUSLY OPERATED IN SALT LADENENVIRONMENT