Tm here with very close to 15k hours on it
With a very good maintenance plan.
Owner drivers and keeping on top of the small things.
Is there any reason not to expect 30k hours out of a yoke?
I have heard someone say that the heads in those TMs should be looked over at 10k hrs, however the rest of the engine is supposed to be capable of 20k hrs. One for your local friendly engine specialist.