Mmm ...
To an extent JB is correct ... we are at the mercy of the mechanical engineering .... BUT is that not the reason to examine the result of incidents and accident in our industry and then IMPROVE the design and reliability of of our machinery .... to allow the improvements of computer design tools to make our machinery better ....
SASless as far as transmissions are concerned ... was not the BA Chinook disaster also related to a transmission failure??.
Perhaps ... now the certifying authorities will revisit the criteria for Public Transport Helicopter transmission design and certification in view of recent events!