Federal investigators confirmed the shattered window on Southwest Airlines Flight 1380 was punctured by pieces of the engine cowling and inlet that exploded after a fan blade snapped off mid-flight.

New images from the deadly UPS cargo plane crash in Kentucky show the left engine exploding during takeoff ... and the blast sparked a massive fireball. Check out these photos that were just released ...

At first glance, a twin-engine aircraft looks a whole lot safer than a single-engine one. After all, if you lose an engine, you still have another to keep you flying in the air, right? This isn't ...