Data recorders of the Boeing airlines that crashed in Rostov-on-Don will be decrypted in Moscow, a source familiar with the situation told TASS.

"Decryption of the flight recorders will be held in Moscow, they don’t have the required equipment in Rostov-on-Don," the source said.

Earlier on Saturday, head of Russia’s Federal Air Transport Agency Alexander Neradko said that both data flight recorders of the Boeing airliner can be decrypted.

"It may be assumed that both data flight recorders of the crashed Boeing can be decrypted," he said.

He said this conclusion was made judging by the visual state of so-called "black boxes".

"After visual inspection it can be assumed that both recorders will be subject to decoding. According to the results of decoding, taking into account the analysis of the structure of the aircraft and the cause [of the crash -TASS] will be found," he said.