American Airlines flight AA-87 had to return and make an emergency landing at Heathrow Airport, United Kingdom, on June 17th.
The Boeing 787-800 plane took off for Chicago, Illinois, but had to return shortly afterwards after the crew received an indication of outflow valve malfunction.
The plane landed safely. Everyone aboard remained unharmed.

Air New Zealand flight NZ-605 made an emergency landing in Christchurch, New Zealand, on May 20th.
Indonesia AirAsia flight QZ-8448 made an emergency landing in Yogyakarta, Indonesia, on November 16th.