A Myanmar Air Force Shaanxi Y-8 crashes into the Andaman Sea near Dawei, Myanmar, killing all 122 aboard.

The Myanmar Air Force is the aerial branch of the Tatmadaw, the armed forces of Myanmar. The primary mission of the Myanmar Air Force (MAF) since its inception has been to provide air bases force protection, anti-aircraft warfare, close air support (CAS), logistical, and transport to the Myanmar Army in counterinsurgency operations. It is mainly used in internal conflicts in Myanmar, and, on a smaller scale, in relief missions, especially after the deadly Cyclone Nargis of May 2008.

The Shaanxi Y-8 or Yunshuji-8 aircraft is a medium-size, medium-range transport aircraft produced by Shaanxi Aircraft Corporation in China, based on the Soviet Antonov An-12. It has become one of China's most popular military and civilian transport/cargo aircraft, with many variants produced and exported. Although the An-12 is no longer made in Ukraine, the Chinese Y-8 continues to be upgraded and produced. An estimated 169 Y-8 aircraft had been built by 2010.

On 7 June 2017, a Shaanxi Y-8 aircraft of the Myanmar Air Force crashed on a flight from Myeik to Yangon, killing all 122 people on board. Debris from the aircraft was found in the Andaman Sea, 118 nautical miles (218 km) off Dawei by Myanmar Navy ships. It is the deadliest aviation accident in Myanmar's history.

The Andaman Sea is a marginal sea of the northeastern Indian Ocean bounded by the coastlines of Myanmar and Thailand along the Gulf of Martaban and the west side of the Malay Peninsula, and separated from the Bay of Bengal to its west by the Andaman Islands and the Nicobar Islands. Its southern end is at Breueh Island just north of Sumatra, with the Strait of Malacca further southeast.