Some analysis of the available video
Some analysis of these videos is over here:
https://github.com/paulross/pprune-c..._Nizhneangarsk
Summary:
- The aircraft approaches at a ground speed that varies between 161 and 180 knots.
- It crosses the threshold at 172±4 knots.
- Touch down is at 164±4 knots, 549±14 m down the 1653m runway (about 1/3 the way down). Acceleration is -1.1 m/s^2 .
- At t=36.0 the aircraft starts drifting to the right, possibly due to a burst tyre. The aircraft is 731±16 m down the runway travelling at 159±4 knots.
- The aircraft departs the runway at t=46.1 s, 1463±41 m down the runway at 114±6 knots. Acceleration is -3.9 m/s^2 .
- At t=56.1 the aircraft hits the boundary fence 200m beyond the end of the runway at around 37 knots. This collapses the starboard undercarriage (and probably the port one as well).
- The aircraft would have slid to a stop roughly 45m later unfortunately there was a building 36m beyond the boundary fence which it hit at somewhat less than 18 knots.