Nepal Airlines flight RA-409 made an emergency return to Tribhuvan International Airport, Kathmandu, Nepal, on November 7.
The Airbus A320-200, en-route to Hong Kong, China, had to return to Kathmandu due to an unusual odour smelled in its cockpit.
The plane landed safely.
All 121 people on board remained unharmed.

UPS flight 5X-209 made an emergency landing at Shannon Airport, Ireland, on November 18th.
THY Turkish Airlines flight TK-6309 had to divert and make an emergency landing at Amsterdam Airport Schiphol, Amsterdam, Netherlands, on May 11th.
KLM flight KL-895 had to return and make an emergency landing in Amsterdam, Netherlands, on February 10th.
Binter Canarias Airlines flight NT-1K had to divert and make an emergency landing in Gran Canaria, Spain, on October 18th.
British Airways flight BA-39 made an emergency landing at Heathrow Airport, England, on November 21st.