Exemptions
The 429 is designed to the latest flaw tolerance requirements, its transmission was demonstrated with loss of oil flow for well beyond 30 minutes, and Transport Canada, when considering this, noted all of the exemptions given to the EC-145 to allow it to be "certified" Part 29.
As to bird strike did I not read in this forum that the S-76 with the hawk strike was brought down not by a windshield problem, but a major structural failure?
Note to JohnDixson: You do not want to race a 429 (or even a 412) to shore after loss of lube to the transmission if you are in a S-92 (unless you are closer than 12 minutes out).
The Sultan