China Eastern Airlines flight MU-5257 made an emergency landing in Nanchang, China, on December 4th.
The Airbus A321-200 plane heading from Qingdao to Guangzhou, China, was diverted after the passenger oxygen masks were automatically deployed, without any indication of a cabin pressure problem.
The plane landed safely. Everyone aboard remained unharmed.

Malaysia Airlines flight MH-180 made an emergency landing in Chennai, India, on June 10th.
LATAM flight LA-8084 made an emergency landing in Belo Horizonte, Brazil, on December 20th.

