As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LANDING GEAR DISAGREE AND GEAR DOOR DISAGREE EICAS MESSAGES CAME ON AFTER TAKEOFF FROM GRU. THE GEAR WAS CYCLED TWICE WITH NO CORRECTION. FUEL WAS DUMPED AND THE AIRCRAFT WAS RETURNED TO GRU WHERE IT LANDED WITHOUT INCIDENT. TROUBLESHOOTING PER MM 32-32-00 FOUND THE RIGHT MLG DRAG BRACE ACTUATOR BROKEN AT THE ROD END. THE ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-32-02-401. OPERATIONAL AND LEAK CHECKS WERE GOOD.