Is it possible to turn off (smoke / fire) just one engine of plane? so If you press just W, your plane will turning the side with disabled engine.
After reading your comment / discussion post, i have no clue what your on about but if you want to edit your post so it is more clear i’m more than happy to assist!
Devz Dz
I would like to explode/turn off/set smoking or something like that to one of plane engines (e.g. left engine). The rest could wait. If I use ‘SetVehicleEngineHealth’, both engines will turn off. I kinda think it is not possible until support for CFlyingHandlingData via just lua but maybe I am wrong.
Yeah i see what you mean, unfortuanlity i have no expirence in that sort of field so best bet is to wait until someone else strolls by or maybe a mod can help you!
Have a goodin’
I don’t want to say you can’t because there is maybe a way to, but when I check the native function they never specifie any thing about an engine Id like for the doors or the windows or the tyres.
it’s like there is only one engine even if the game give you the illusion of two.
But if you are brave enough to code you’r own system then I’m sure you can make it.
some idea how you could proceed:
most of part of vehicule are bones, you just need to figure it out which boneId is the left engine and right engine.
At this point from the BoneEngine1 you can have the coordinate to do some visual effect (explosion, smoke ), I’m almost sure there is even a way to remove some bone (like the rotor).
then the last you need to do is to impact the handling of the plane depending which damage you want to simulate.
You can apply an offset on the steering of the plane to force it to turn more on the right or left or you can play with the VerticalFlightPhase of the plane , the velocity ect.
Good luck with your 737 max simulator 
Before you completely give up hope, I want to turn your attentions to something:
This was done in the game and can clearly be done in fivem - It’s just a matter of finding the native;
Found it - Use DisableIndividualPlanePropeller and the Enable version to play with hte individual plane engines. Gonna play with this as it has application with my usecase, too 