American Airlines flight AA-2250 had to make an emergency landing in Hartford, Connecticut, on February 26th.
The Boeing 737-800 plane took off for Chicago, Illinois, but had to turn back after the crew noticed an unusual smell on board.
The plane landed back uneventfully. All ninety-three passengers and six crew members remained unharmed.


KLM flight KL-1779 had to return and make an emergency landing in Amsterdam, Netherlands, on August 27th.
Flybondi flight FO-5600 had to divert and make an emergency landing at Ministro Pistarini International Airport, Buenos Aires, Argentina, on December 28th.