Originally Posted by
Flying Bull
There are quite a lot and different angels of the crash.
Look closely - there is a bang and the departing tail rotor - but only after spinning while climbing.
My guess - it is the result and not the cause
Possibly, some of the footage seems to show a change in rotational speed of the tail rotor. This could also be due to the foibles of digital photography and encoding.
They have all the bits, so it won't be too difficult to work out the cause.
The pilot is fortunately still with us, so this shouldn't remain a mystery for too long.