As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MTC TASK-PASSENGER CABIN SERVICE DOOR R1 LOWER SILL TEE SUPPORT FOUND CORROSION .REFER TO CPCP TASK 53-674-00 LOG-PAGE UPDATED PASSENGER CABIN SERVICE DOOR R1 LOWER SILL CORROSION TEE SUPPORT REMOVED AND REPLACED AS PER B767-400 SRM51-40-02RELEASE (1489040)