As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT MAIN CABIN, FLOOR BEAM APPROX. LBL 6.5" IS CORRODED IN SEVERAL SPOTS FROM FR68-70. MARKED. GROUNDED - YES. REMOVED CORRODED BEAM IAW A320 SRM 51-42-11. DRILLED TO FIT AND INSTALLED BEAM IAW A320 SRM 51-72-11-911-001 AND AIRBUS DWG 18D5372780