As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: CORROSION FLOOR STRUCTURE ON CENTER WING BOX FR41 TO FR42 ON LH SID E IN PASSENGER CABIN; (RESOLVED ON W/O: 1264003 TASKCARD: NR-00028 ) ALL WORK ACCOMPLISHED ON AE WO # 2023 279/1 NR # 2023-590664 ACCOMPLISHED THE REPAIR OF THE CORROSION FOUND AT THE CENTER WING BOX-LH TOP SKIN BTWN FR 41-42 AT BEAM Y1292 IAW AEM EA 57-0376-23 REV 0 (COVER, PART 1) AND AIRBUS RDAF 81292115/003/2023#A JB EC A23-1070-01.