Originally Posted by
Kulverstukas
According to Rules for Investigation of Accidents and Incidents with Civil Aircraft in the Russian Federation (Gov.app. of June 18, 1998 No. 609, red. No. 854 of November 19, 2008) in 30 days after accident must be published itinerary report if investigation continues.
Would the actual CVR recording be released? That (somehow!) was done for the 10 April 2010 crash of the Polish Presidential Tu-154M near Smolensk, and combined with other data (e.g. photographs, Google Earth etc.) allowed Prof. Pawel Artymowicz (University of Toronto) to construct an independent dynamical model of the final sequence of events (largely in agreement with Russian and Polish official simulations). His brother Andrzej was later attached to the official prosecutorial investigation and was able, in Moscow, to obtain much better playback and re-recording of the actual CVR, providing the best evidence to date of what actually happened (a matter of the greatest political significance in Poland). Although it is never done in the West, the release of the actual CVR recording in the end led to a much better investigation, even if highly uncomfortable for, and still suppressed by, the Law and Justice party, elected to government in Oct. 2015. In countries where government agencies are not widely trusted, the release of such material provides an important degree of transparency and allows the truth to be determined.