NTSB报告称,陆军直升机飞越了海拔极限,导致2020年空中中空发生致命碰撞。 Army helicopter flew above altitude limit, causing a fatal midair collision in 2020, NTSB reports.

国家运输安全委员会(NTSB)发现,一架在2020年1月参与一场致命的中空碰撞的军用直升机飞越其允许的高度以上。 The National Transportation Safety Board (NTSB) has found that an Army helicopter involved in a fatal midair collision in January 2020 was flying above its allowed altitude. 坠机造成两架直升机上所有人员死亡。 The crash resulted in the deaths of all personnel on both helicopters. 国家空中交通管制委员会仍在调查其他潜在因素,如通信问题和空中交通管制程序。 The NTSB is still investigating other potential factors, such as communication issues and air traffic control procedures.