As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION DAMAGE TO THE UPPER FLANGE OF THE FRAME 14 CROSSBEAM. THE DAMAGE WAS BLENDED. DISCOVERED THAT THE CORROSION DAMAGE IN THE CENTER OF THE BLEND OUT EXTENDED THROUGH THE ENTIRE THICKNESS OF THE UPPER FLANGE. INSTALLED A NESTED ANGLE REPAIR ON THE CROSSBEAM IAW EO E175-53MR-284.1. MAJOR REPAIR.