What exactly is the "evidence" that the wrong engine was used again?
Beats me. You don't need to look at what was left of the engine to tell it was a JT9D. A United 767-200 struck the South Tower as was captured by dozens of cameras. United used(uses?) JT9Ds on their 767-200s. Saying it was a CFM56 does a couple things for the truther mentioned in the OP. It makes him sounds smart to his truther buddies, and gives him his 15 minutes of truther fame.
But this is really one of those things that should have been put to bed by other truthers, because, as anyone can see by using comparison photographs, that the engine on Murray St is not a CFM56. You don't need to be an A&P working in a powerplant shop to come to that conclusion. You need moderate google skills and eyesight.
