As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TROUBLESHOOTING, FOUND FUEL CROSS-FEED LINE ROUTED THROUGH RT DOOR POST WEEPING FUEL. PORTION OF LINE REMOVED AND UPON FURTHER EXAMINATION A PIN-HOLE CAUSED BY CORROSION WAS FOUND UNDER PLASTIC ANTI-CHAFE MATERIAL. SUSPECT CONDENSATION OVER MANY YEARS CAUSED CORROSION TO FORM UNDER PLASTIC SHEATH. REFERENCE TO FIGURE 99 OF AIRCRAFT IPC.