As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SIN: BS 1288 L/H KEEL BEAM LOWER CHORD FOUND CORRODED AFTER CORROSION BLEND OUT. MATERIAL REMOVED 0.110 OUT OF SRM LIMIT. CHORD ORIGINAL THICKNESS 0.250. ****S/D***** REPAIRED CARRIED OUT AS PER FEDEX ENGINEERING REPAIR AUTHORIZATION ERA # B53-10-336.