As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE APPEARED IN THE AFT CABIN SHORTLY AFTER TAKEOFF FROM SDQ. THE CIRCUIT BREAKER FOR THE NR 3 OVEN IN AFT GALLEY WAS PULLED AND THE SMOKE CEASED. THE AIRCRAFT WAS RETURNED TO SDQ WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 3 OVEN AT FAULT. THE OVEN WAS REMOVED AND REPLACED. OVEN OPERATION CHECKED GOOD. NO OTHER DEFECTS WERE NOTED.