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伟1月15日，美国联邦航空局（FAA）命令波音公司对广为使用的B737飞机的方向舵进行改进。这一改进将有助于防止造成飞机突然和不可控制滚转的非意识方向舵动作。FAA说，1994年在匹兹堡和1991年春在科罗拉多发生的两起飞机失事事故中，B737飞机就是在突然滚转后坠毁的。由波音公
Wei On January 15, the Federal Aviation Administration (FAA) ordered Boeing to improve the rudder of the widely used B737 aircraft. This improvement will help prevent the unintended rudder action that causes the aircraft to suddenly and uncontrollably roll. The FAA said that in the two plane crashes that occurred in Pittsburgh in 1994 and Colorado in the spring of 1991, the B737 crashed after a sudden roll. Boeing