[wimpycat]

If I saw pieces of a plane falling off of a flying plane, I could figure out if it was a wing that had fallen off, but I have no idea what an airplane engine looks like. Do you know for sure if the eyewitness who said they saw an engine fall off even knows what an airplane engine looks like? I might see something mechanical that looks like an engine, but that doesn't mean it's an engine. FWIW.

[X-FID]

If I saw pieces of a plane falling off of a flying plane, I could figure out if it was a wing that had fallen off, but I have no idea what an airplane engine looks like.

Since the wing is a fuel tank it would probably explode in many pieces and be hard to identify, an engine on the other hand probably gets expelled intact for the most part, at least until it hits the ground.