As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAL - MAJOR REPAIR - DURING C-04 CHECK INTERGRANULAR CORROSION WAS FOUND ON LONGITUDINAL FLOORBEAM -Y189 BETWEEN FR 20 AND FR 21. MAINTENANCE REMOVED CORRODED LONGITUDINAL FLOORBEAM -Y189 FROM FR 20 TO FR 21; FABRICATED A NEW REPLACEMENT FLOORBEAM; INSTALLED REPAIR PART IAW A320 SRM 53-11-14.