The flight data recorder has shown that in the event the pitch angle increased up to 19 ° and that there were two roll to the left: the first of 33 ° and the second of 140 °.

Am I missing something?

"Turbulence" to my memory has never "rolled" the helicopter....pitched up...yawed...perhaps a very small amount of roll....lots of vertical oscillations....but never even remotely close to the roll being described here.

The one exception to that is wake turbulence which can produce large roll rates.

I am not buying the story of "clear air or mechanical turbulence" rolling the aircraft.

A single crewmember onboard trying to have some fun?

Sounds a bit like RBS to me.

What was the height of the ground where he landed..?
Surely it was enough to have tried a relight in auto....?

Hello pilots! Any rumours on this one??

On the official side... there is no updates...

https://www.mitma.gob.es/organos-col...019/a-027-2019

I used Google Translate on that page

"The pilot was unhinged and left the aircraft on his own"

A late response here, Sassy, but in the late 80s I was flying a BK117 in the NSW Blue Mountains, planning to rescue a man from the bottom of a cliff. The wind was very strong from the west, and we would not have attempted the task in the B206, but we felt comfortable in the BK. Until we got into the mechanical turbulence from the cliffs - we rolled to 120 degrees, recovered, and decided to not rescue the man after all. Landed nearby and had a coffee while the ground people collected him. He was an attempted suicide, took pills, stood on the edge of the cliff and shot himself, fell down the cliff but survived. Some weeks later he was more successful.