The Commission is investigating the crash of Tu-154, considering at least 7 versions of what happened.

Based on the information available to the news Avia.pro, among the major versions considered by experts, should be made a technical failure of one of the major systems, human factors, external factors (weather conditions, a collision with a bird, etc.). According to experts, the priority version is not, and it is likely interpretation of the detected "black box" will shed some light on this incident.

It should be clarified that the version previously considered a terrorist act on board, is currently completely excluded that became known from the data provided in the course of the decoding information from flight recorders.