According to the Reuters statement
“Data from the cockpit voice and flight data recorder will be processed in a laboratory run by Brazilian aeronautical investigators in the capital Brasilia, in a process that will be monitored by representatives from Kazakhstan, Russia and Azerbaijan,”.
The date will be then sent to investigate in Kazakhstan.
The pilots and passengers of the Azerbaijan Airlines passenger plane were honored by Azerbaijan on Sunday. Following the use of Russian air defenses against Ukrainian drones, the disaster claimed 38 lives.
After veering away from southern Russia, where Ukrainian drones were targeting many locations, the plane crashed last Wednesday in a blaze of flames close to the city of Aktau in Kazakhstan.