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 REF NR 2018-159127 FLOORBEAM +Y1292 AT LEVEL STR 23L FR 64 TO FR 66 + 5 AT AFT GALLEY AREA (1EA); REF NR 2018-159127 REPLACED FLOORBEAM +Y1292 AT LEVEL STR 23 L BTW FR 64 TO FR 66 AT AFT GALLEY AREA IAW A320 SRM 51-72-11