As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SERVICE CHECK, FOUND LEFT WING UPPER SURFACE NR 3 AND 4 PANELS CRACKED AND CORRODED WS 69 AT WING TO FUSELAGE FILLET ATTACH HOLES FROM RISER 15 THROUGH TO RISER 28. INSTALLED REPAIR TO LT WING UPPER SURFACE PANELS 3 AND 4 BS 65 TO WS 101L PER RAAA ECO 99-06 LUNDBY DESIGN SERVICES DRAWINGS NR 188355 AND 188275.