As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON FLOOR BEAM -Y1162.5 BETWEEN FR 66-FR 68 AT AFT GALLEY AREA; REPLACED FLOOR BEAM-Y1162.5 BETWEEN FR 66-FR 68 AY AFT GALLEY AREA IAW SRM A320-51-72-11 AND DRWG D53472780. REF AEROMAN NR 2018-374619.