As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A3NB-57-3-6007. CORROSION ON CENTER WING BOX, UPPER SKIN UPPER S URFACE BETWEEN FR41-FR42 APPRX Y1550.(UNDER APU FUEL FEEDLINE). RECEIVED FINAL EC/RA #5310-07880 VERIFIED ALL STEPS COMPLIED WIT H AND DEVIATIONS NOTED LP CREATED FOR ACCOMPLISHMENT OF ESFR ENTRY. SFR 1025561.