The accident happened in a busy generalaviation corridor over the river that is often filled with sightseeing craft on sunny days.
事发空域是一个非常繁忙的通用航空走廊，天气晴好的时候那里的观光飞机络绎不绝。
2
Although civil aviation accounts for the bulk of air passengers worldwide, generalaviation accounts for most of the flights.
虽然民用航空业承运着世界上大多数航空旅客，通用航空则占着飞行航次的大头。
3
Generalaviation is important because it underpins other forms of aviation by providing a non-military arena in which to train the pilots and technicians needed by airlines.