Delta Airlines flight DL-71 had to return and make an emergency landing in Amsterdam, Netherlands, on May 18th.
The Airbus A330-300 plane took off for Atlanta, Georgia, but had to turn back after the crew reported an engine problem.
The plane landed back safely. Everyone aboard remained unharmed.

Aeromexico flight AM-8 made an emergency landing at Heathrow Airport, England, on February 9th.
Indigo Airlines flight 6E-468 had to reject takeoff from Goa, India, on October 23rd.
Yanair flight YE-223 made an emergency landing in Kiev, Ukraine, on June 23rd.