対たい地ち接せっ近きん警けい報ほう装そう置ち

noun

ground proximity warning system; GPWS

Aviation safety system that alerts pilots when the aircraft is in danger of flying into the ground or an obstacle.

• 対たい地ち接せっ近きん警けい報ほう装そう置ちが作さ動どうし、機き長ちょうは直ただちに機き首しゅを上あげた。

  The ground proximity warning system activated, and the captain immediately pulled up the nose.