What annoys me is that there are solutions. Corrosion is every bit as important as fatigue on component durability. I understand the need to keep production volumes up, but there should be a corrosion task force set up to cure this problem. It should consist of a very small handful of design, test and manufacturing engineers.
One machine would need to be sacrificed for continuous salt spray testing - it is the best way to get accelerated corrosion results. It needs to be driven from within the organisation, so that the processes fit in with production techniques, and do not affect the performance of an otherwise good bit of design.
PS: Interesting comment about emissions, LNT. Is the light aviation industry about to be bitten by the emissions bug? That
Lycoming 0-320-B2C engine could probably have valves modified to run on unleaded, but the combustion chamber design is getting dated now...