Are you new to After Effects? Are you applying the animation to the right layers. We need a screenshot to diagnose your unusual problem. Select all the layers giving you problems and then press the U key twice to reveal all modified properties. Press Print Screen and then paste to the reply field on this forum. This sounds like user error to me.
Check the frame rate of your comps to ensure it is correct to the footage. This is the only time I've had footage or imagery from other comps appear in my rendered comp. In each case, it was improper match of frame rate. I know it makes no sense that an image from another comp could be in there but I've seen it many times. May not be the case here and when I see it, it is usually a flicker of a frame from another comp but an easy first check.
Secondly, if this airplane footage is in the comp, below the layer, or eye turned off, if you don't want it there, at least remove it from the comp and try. Hard to tell without the screen shots.
...and be sure to purge all memory & caches.
yeass, that's what i needed. I purged all the memory & caches and it is gone.
Thanks guys !