To sum up, the AAIB have said that nothing departed the ac prior to impact and that there is no evidence of major mechanical disruption of either engine and indicated that the main rotor gearbox was capable of providing drive from the No 2 engine power turbine to the main rotor and to the fenestron drive shaft.
So, all is well up to the point at which the mrgb is connected to the trds. Anything beyond that point could still present the cause for the incident, such as the trds, bearings and the trgb itself.
I hope some people sleep well tonight believing the papers and their own consciences, I'll be dropping off going through tail rotor scenarios.
Glasgow pub tragedy prompts West Midlands helicopter checks « Express & Star