WestJet flight 662 had to return and make an emergency landing in Calgary, Alberta, Canada, on February 3rd.
The plane took off for Toronto, Ontario, Canada, but had to turn back after smoke was observed coming from the air conditioning system.
The plane landed safely. All 132 passengers aboard remained unharmed.
KLM flight KL-565 had to return and make an emergency landing in Amsterdam, Netherlands, on January 16th.