As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE C-CHECK AND CPCP INSPECTION, CORROSION ON CENTER WING FUEL TANK ACCESS DOOR AT FUSELAGE STATION 742 WAS FOUND. REPAIR WAS ACCOMPLISHED BY REMOVAL OF EXISTING DOOR, FABRICATION AND INSTALLATION OF NEW DOOR IN ACCORDANCE WITH ENGINEERING ORDER 57-DC8-434 AND FAA DER APPROVED DRAWING 857-011097.