The black box of the crashed helicopter has been found in Kinnaur, Tamil Nadu. After getting the black box, now the secret of this whole incident will be revealed. The search for the black box was going on since the incident. Sources said the flight data recorder and cockpit voice recorder of the Mi-17V5 helicopter have been recovered from the site. Defence expert Shailendra Singh said that the black box is important from the point of view of the investigation. During the investigation, it will be known what the parameters were. What did the pilot say the last time… Tried