United Airlines flight UA-67 had to return and make an emergency landing at Shannon Airport, Ireland, on May 27th.
The Boeing 757-200 took off for Chicago, Illinois, but had to return shortly afterwards due to an engine issue.
The plane landed uneventfully. All 108 passengers and 9 crew members remained unhurt.

Vietjet flight VJ-198 made an emergency landing in Ho Chi Minh City, Vietnam, on November 19th.
Fedex Federal Express flight FX-130 had to return and make an emergency landing in Memphis, Tennessee, on March 28th.
Eva Air flight BR-215 had to return and make an emergency landing at Taiwan Taoyuan International Airport, Taoyuan City, Taiwan, on July 28th.