Grenville, I think you misinterpreted my comments. I did not suggest that a stalled rotor should be recoverable. I said that I believe a stalled rotor with the collective fully down may still have some small rotation. The AAIB have stated that there was zero rotation, so even if there had been a double engine failure and a completely mishandled entry into autorotation (which I would not expect from this pilot) this doesn't quite add up. No rotation suggests to me a mechanical failure in the transmission. As the AAIB are indicating against that, I am quite puzzled by this accident.