A few seconds with the footage of the flight recorders of the crashed near Smolensk of the Polish Tu-154 did not disappear, although in Warsaw the contrary. The cause of the discrepancy explained by the Interstate aviation Committee (IAC).
The head of the technical Commission the POPPY on investigation of the accident Alexei Morozov told RIA Novosti that the plane was equipped with two parametric recorder: the first was a full-time, and the second, ATM-QAR Polish origin was placed illegally without the consent of the developers of aircraft and registration system.
This Polish recorder was not accidental, therefore, were not protected in the same way as regular devices. According to Morozov, this explains the discrepancies.
Note that in Poland in recent years have increasingly voiced conspiracy theories of the death of the presidential Tu-154. In particular, in the spring at the official level it was announced that the plane was destroyed in an explosion on Board.