As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK EXFOLIATION CORROSION WAS FOUND ON FLOOR SUPPORT RAIL Y254 RT BETWEEN FR 16 AND FR 20. MAINTENANCE REMOVED CORRODED FLOOR SUPPORT RAIL Y254 RT FROM FR 16 TO FR 23; FABRICATED A NEW REPLACEMENT RAIL; INSTALLED REPAIR PART IAW A320 SRM 51-72-11.