winchman :
I know of at least one Police Air Unit in the UK that
changed from a 902 to a 135
within the last 10 years, primarily because of the unavailablity of spare parts ( notably Flex Beams )
and lack of confidence that the Company would turn those problems around within a timeframe
that was acceptable - weighed against the risk of the aircraft being grounded
( like others had been ) for extended periods of time.
I think the Flex Beam issue, and maybe others, has now beeen addressed, but if you "didn't notice" those issues,
then you weren't keeping up to date with what was happening with the worldwide fleet !