Sent_en: 2zh Mr Geraldus also said sleep deprivation could have contributed, with the flight crew reporting for duty at 4:30 am and the flight departing an hour and a half later.
Sent_yy: 杰拉尔德斯先生还说睡觉剥夺可能是原因之一。机组人员于凌晨四时三十分报到值勤，航班在一个半小时后离开。