As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON LH WING TOP SKIN BTW RIB AND RIBS RAF-01 3577669-02 GENERATED.-PERFORMED PERMANENT REPAIR OF LH WING TOP SKIN PANEL 2 BTW RIB 4 TO RIB 5 ALONG REAR SPARK-UPPER SURFACE I.A.W. DOSSIER 81543621 AND EA #57-0013-25. THIS REPAIR IS CATEGORY A.