Police helicopter crashes onto Glasgow pub

[Sven Sixtoo]

High Spirits

AAIB say "No evidence of mechanical failure".

Now I am quite aware that absence of evidence does not equal evidence of absence. But AAIB are the most conservative of bodies in their statements. I may be wrong, but given that they say that they can't find anything broken, I would bet a lot of money that they can prove that the fenestron would have been going round if the main rotor had been going round.

Further to that, a quick check of the report shows that they have explicitly said so:

providing drive from the
No 2 engine power turbine to the main rotor and to the
fenestron drive shaft.

And that, of course, only says that the fenestron drive shaft could have been going round, not the fenestron itself. However, given the "no mechanical failure" statement, we can be confident that the fenestron would have been turning if drive had been provided.