Analysis of the black box of the '38 dead' Azure airliner...Russia participates, too.

The Brazilian Air Force's Air Accident Prevention and Investigation Center reported that it is extracting and analyzing black box data of an Azerbaijani plane that crashed over Kazakhstan on Christmas last year.

The investigation center says its experts are reading and documenting black box data with agents dispatched from Kazakhstan and Azerbaijan.Russia, which has been criticized for providing the cause of the crash due to the

's 'dropping of the man', is also sending investigators to cooperate with the work, Brazilian authorities added.

Kazakhstan, a member of the International Civil Aviation Organization and ICAO, previously entrusted Brazil to investigate the black box under the International Civil Aviation Convention.

According to the rules of air accident investigation within the agreement, the responsibility for the accident lies in the country where the accident occurred, and the bureau responsible for the investigation can choose the subject to read and decipher the black box, local media said.

The aircraft was manufactured in Embraer, Brazil, and Brazil is participating in the investigation as a competent authority in the location of the aircraft manufacturer.

Azerbaijan Airlines Flight J28243 departed from Baku, Azerbaijan, on December 25 last year and was en route to Grozny, Russia, when it suddenly changed course and crossed east before crashing while attempting to land in Aktau, western Kazakhstan.

The plane was carrying 67 people, including 37 from Azerbaijan and 16 from Russia, 38 of whom were killed.