As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFTOVERWING FUEL PORT FAILED A RESISTANCE BONDING CHECK. DURING DISSEMBELY, DISCOVERED CORROSION ON THE UPPER AND LOWER LANDINGS OF THE WING SKIN BETWEEN LWS 469.5 - 479.5. REPLACED THE LT WING OVERWING FILL PORT IAW AMM 28-11-04-404.