According to the Russian Defence Ministry, the helicopter crashed on Wednesday during a training flight not far from the Korenovsk airfield, leaving both pilots killed.
"Both 'black boxes' — the instrument for registering flight parameters and the cockpit voice recorder — will be delivered to Moscow for being deciphered at the Defence Ministry's scientific and research institute in Lyubertsy," the emergency services' representative said.
The representative added that the technical condition of both "black boxes" was "normal."
The helicopter crashed when it was preparing to land, just 2 kilometers (1.24 miles) away from the landing site, he specified.