As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CORROSION UPPER SURFACE OF UPPER SKIN OF THE CENTER WING BOX AT LEVEL+Y1292 AND FR 41 PLUS 20 INCHES IN PASSENGER CABIN; ACCOMPLISHED REPAIR ON CENTER WING BOX UPPER SKIN PANEL AT+Y1292 BETWEEN STIFFENER 16 AND 17 IAW ECA21-0555-21. WORK ACCOMPLISHED ON AEROMAN NR 2021-491738 (CLASSIFIED A MAJOR REPAIR)