IndiGo flight 6E 573 had to make an emergency landing in Kolkata, India, on November 9th.
The plane took off for Guwahati, India, but had to turn back after the crew noticed smoke on-board.
The plane landed safely. All seventy-six people aboard remained unharmed.

Malaysia Airlines flight MH-134 had to return and make an emergency landing in Brisbane, Australia, on July 18th.
Cathay Pacific flight CX-412 had to return and make an emergency landing in Hong Kong, China, on June 11th.
Wizzair flight W6-3152 made an emergency landing at Henri Coanda International Airport, Romania, on January 25th.