American Airlines flight 2398 made an emergency landing in Memphis, Tennessee, on May 14th.
The plane, heading from Nashville, Tennessee, to Dallas, Texas, was diverted due to smell of smoke in the cabin.
The plane landed uneventfully. All 141 passengers and 5 crew members remained safe.

Air India flight-9604 had to return and make an emergency landing at Bamrauli Airport in Allahabad, Uttar Pradesh, India, on October 21st.
American Airlines flight AA-52 had to return and make an emergency landing in Philadelphia, Pennsylvania, on October 11th.
Iran Aseman Airlines flight EP-3710 had to return and make an emergency landing at Mehrabad International Airport in Tehran, Iran, on January 2nd.
Emirates flight EK-507 had to make an emergency landing in Dubai, United Arab Emirates, on June 9th.