Just before landing at Nagoya Airport, Japan, the copilot of China Airlines Flight 140 inadvertently triggered the takeoff/go-around switch, causing the aircraft to crash and killing 264 of the 271 people on board.

Nagoya Airfield , also known as Komaki Airport or Nagoya Airport, is an airport within the local government areas of Toyoyama, Komaki, Kasugai and Nagoya in Aichi Prefecture, Japan. Prior to 2005 it was an international airport, but is now a domestic secondary airport serving Nagoya while the current primary civil airport for Nagoya is Chūbu Centrair International Airport in Tokoname.

China Airlines Flight 140 was a regularly scheduled international passenger flight from Chiang Kai-shek International Airport to Nagoya Airport in Nagoya, Japan.

A takeoff/go-around switch is a switch on the autothrottle of modern large aircraft, with two modes: takeoff (TO) and go-around (GA). The mode is dependent on the phase of flight; usually, on approach to land, the autopilot will be set to approach mode, therefore if the TO/GA switch is pressed it will activate the go-around mode of the autothrottle (about 90–92% N1, if pressed again, go around thrust will increase to full ; conversely, when takeoff is set on the autopilot, the switch activates takeoff mode of the autothrottle. On Boeing aircraft, TO/GA modes are selected by a separate button near the throttle levers; on Airbus aircraft, it is activated by advancing the thrust levers forward to the TO/GA detent.