"You might want to check your stats. According to the FAA, the 427 has only had 9 ADs (plus 2 PW200 ADs), while the EC135 has had 15 ADs (plus 2 PW200 ADs and 5 Arrius 2 ADs). The MD900/902 has had 20 ADs (plus 1 revoked), plus those 2 PW200 ADs.
I/C Yesterday 11:14"
I/C - Check my stats. And that is exactly the point. Which stats you use, and how you interpret them can put a whole different perspective on things.
Your (FAA) stats show 9 ADs on the Bell 427.
Transport Canada stats, meanwhile show 13 current and 1 cancelled.
CAWIS - AD Record List=
CASA in Oz shows 12 current
Civil Aviation Safety Authority - Rotorcraft
And as for the EC135, the FAA may well list 15 ADs but take a look at the German view
http://www2.lba.de/dokumente/ad/html/ads-eurocopter/3061-ec-135.htm
The wonderful world of figures and stats.
