753. Request immediate one eighty turn to the right due volcanic ash.
753. 由于火山灰,请求立即向右转八十转。
ICAO民航英语
773. The outer main landing gear might have rolled over runway lights when we made the one eighty turn.
773. 当我们转了八十圈时,外部主起落架可能已经翻过跑道灯。
英语百科
U-turn
A U-turn in driving refers to performing a 180° rotation to reverse the direction of travel. It is called a "U-turn" because the maneuver looks like the letter U. In some areas, the maneuver is illegal, while in others, it is treated as a more ordinary turn, merely extended. In still other areas, lanes are occasionally marked "U-turn permitted" or even "U-turn only."