Under your scenario, thats not terrorism; thats a hijacking. And again, the idea of hijacking the plane, and flying it for 5-7 hours with no one seeing it on radar is possible. I suppose. Theoretically.
Also, if the transponders on the engines put out a signal whenever the engines are running, as soon as the plane fires back up again, Rolls Royce will know. Unless they have a mechanic who knows Rolls Royce engines well enough to disable it.
If, if, if, if. Just too many ifs.
I suggest you take a break.
Or, are you paid by the number of posts?
HF
19 Muslims took enough avionics to learn how to fly planes in to buildings...
Someone knows exactly what happened and that someone’s not telling but this story has about outlived it’s usefulness. Don’t drag it out too long or the sheeple will ask questions.