Originally Posted by
Compton3fox
Looking at the last data points: GS 376kts VS 30976 ft/min = ~305 kts. Decent angle is arctan(305/376) = 39 degrees. <please check my maths!> Based on the video evidence, it suggests that AOD increased markedly in the very last phase of the decent. Maybe up until this point, the A/C was relatively intact but suffered some significant break up close to the ground.
Your maths is intact. So something on FR24 didn't catch it - which is hardly surprising, the algo's on FR 24 are designed to be as accurate as possible in conventional flight profiles - not this sort of thing.
Somebody made a graphic here; you can see some attempt at recovery, maybe (at 06:22:16 UTC) - or, change of configuration of surfaces (non-pilot initiated, e,g; further structual failure) resulting in change of flight path. Or, again. this could be FR24's Algorithyms's interpolating unusual data and as a result plotting erroneous trajectory.
Obviously, the blue aircraft symbol is not representative of the aircraft's attitude but simply it's position in altitude and even then - only very approximately and exaggerated for illustration purposes.
So a pointless task of guessing. The only thing that will clarify what happened is the boxes.
