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 FLOORBEAM -Y765 AT LEVEL STR 23R FR66 +5" TO FR 70 AT AFT GALLEY AREA (1EA); REF. NRC 2018-159128 AND W/O 909857 REPLACED FLOORBEAM -Y765 AND FASTENERS LOCATED AT LEVEL STR 23R BTW FR66 TO FR70 AT AFT GALLEY AREA IAW SRM 51-72-11 AND DRAWING D53472000.