As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT MAIN CABIN L/H LONGITUDINAL BEAM BETWEEN FR 69-70 Y=+638 HAD CORROSION. GROUNDED - YES. REMOVED AND REPLACED AFT MAIN CABIN L/H LONGITUDINAL BEAM BETWEEN FR 69-70 Y=+638 IAW A320 SRM 51-42-11, AIRBUS DWG D53472837 AND EA A320-53EA-00469.