As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN FLOOR SUPORT BEAM AT L4 DOOR AT FR 68 HAS CORROSION T NUTPLATE LOCATION GROUNDED - YES. REMOVED CORROSION IAW A321 SRM 53-41-14-283-002. ORIG MAT .071, REMAINING MAT .031. MAT LOSS OF .040 IS BEYOND ALLOWABLE LIMITS. ALLOWED 25% MAT. LOSS REPAIRED AREA IAW A321 SRM 53-41-14-300-001 REPAIR PRINCIPLE 5. THIS IS A CAT. A REPAIR