A Delta Boeing 767 made an emergency landing after its exit slide fell off midair

• A Delta flight from NYC to LA had to turn back after its emergency exit slide detached.
• The Boeing 767 landed safely at JFK about an hour after taking off.
• It is the latest in a string of safety mishaps to befall a Boeing plane.

A Boeing plane was forced to make an emergency landing on Friday after an emergency slide fell off the aircraft.

Delta Air Lines flight 520 from New York's JFK airport aborted its trip to LA on Friday and landed back where it started.

It touched down again at around 8:30 a.m., just an hour into its journey, according to the tracking site Flightradar24.