Allowed engines in each model year

JimC · #1 04-09-18, 04:25 PM

My reading of the type certificate (http://www.337skymaster.com/messages...2&d=1489027004) says that IO-360-D engines were allowed on the rear of 337, 337A and 337B models, but not allowed on any models after that. Is that correct?

hharney · #2 04-10-18, 03:36 PM

Jim

Check with Continental directly as lots has changed. They are great to work with and will be very helpful for your questions.

JimC · #3 04-11-18, 09:29 AM

I talked to them and they confirmed what I thought - the only way to change to an engine that's not on the TC is with an STC, or a field approval with a form 337 filed with the FAA.

hharney · #4 04-13-18, 07:58 AM

What are you trying to have approved? Why?

Kim Geyer · #5 04-13-18, 12:17 PM

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 · #6 04-13-18, 01:11 PM

Quote:

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.