I have crashed an aircraft and walked away when the tail rotor seperated in flight.... It is not a pleasant experience
Regardless of the cause of this accident when it washes up, the crew and passengers will never be the same again... I suspect most speculators on this thread are fortunate enough NOT to have had the misfortune of a serious accident in their careers..... Spare a thought for the poor bastards that now have and wait for the AAIB report.
