Allowed engines in each model year

[hharney]

What are you trying to have approved? Why?

[Kim Geyer]

I think the big difference between the C and D is the starter drive. the drive on the C has pads for the Hyd pump and the vacuum pump. I you get a factory engine with a B in it,
(ie IO360 CB--) past a certain S/N you have 200 more hrs. TBO

[JimC]

Originally Posted by hharney

What are you trying to have approved? Why?

I found a 1969 337D model with a IO-360-D engine, and that's not listed as approved on the TC. There is no STC or form 337 approving the swap. I believe it's an invalid engine for that plane.