China Northwest Airlines Flight 2303 was a domestic flight from Xi'an to Guangzhou, People's Republic of China. On June 6, 1994, the aircraft operating the flight, a Tupolev Tu-154M, broke up in-flight and crashed as a result of an autopilot malfunction which caused violent shaking and overstressed the airframe. All 160 people on board were killed. As of 2025, it remains the deadliest airplane crash ever in mainland China.