China Airlines Flight 204 (CI204/CAL204) was a Boeing 737-209 that crashed into a mountain after takeoff from Hualien Airport, Taiwan, on 26 October 1989.

The crash killed all 54 passengers and crew on board the aircraft.

Ten minutes after takeoff, the plane collided with a mountain in the Chiashan range at an altitude of approximately 2,100 metres (6,900 ft), 5.5 km (3.4 mi) north of the airport.

[1][3][4] The major cause of the crash was determined to be pilot error, as the experienced pilot (15 years with China Airlines) and a novice copilot departed from the wrong runway, a mistake compounded by ground-control personnel who failed to spot the error.

The aircraft then flew the climb-out procedure for the correct runway, and as a result, the aircraft made a left turn toward the mountains rather than a right turn toward the sea.