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 2018-159128 FLOORBEAM -Y765 AT LEVEL STR 23 R FR 66 + 5 TO FR 70 AT AFT GALLEY AREA (7EA); REF NR 2018-159128 REPLACED FLOORBEAM -Y765 AND FASTENERS LOCATED AT LEVEL STR 23 R BTW FR 66 TO FR 70 AT AFT GALLEY AREA IAW SRM 51-72-11