Delta flight forced to make emergency landing after engine failure; see the viral video

"After we heard the boom, we saw all this smoke coming up through the cabin, and that's when we started freaking out," passenger Avery Porch said.

Outside the cabin windows, passengers could see there was a piece of metal that was sucked into an engine, WSOC-TV reported.

>> Watch a video from the scene here

Flight attendants instructed passengers to duck and brace for a landing.

The more than 150 people on board were OK.