The "SIDS" thing here in Australia that is the current topic of discussion applies to (most of) the Cessna twins and thier wing spars. (I think the C404 and 336/7 mixmaster miss out). It has scared alot of people away from buying them and has de-valued them somewhat.
We also have another CASA yoke around our neck with the RAM conversion winglets on the cessna twins. eg the C414A has a spar life of about 11 or 12 thousand hours here in Australia, however, if the A/C has the RAM winglets installed the spar life is reduced to something like 7,000 hours as our CASA says there has been no testing on the additional twisting load the winglets inflict on the wing/spar.
