这是航空历史上最惨烈的一次空难事件。1974年,随着一架飞机坠毁,300多名乘客命丧黄泉。这场灾难为何会发生呢?不同寻常的证据揭开惊人事实:原本应确保舱门锁闭的锁定销并没有在锁闭的位置。 This is the worst air accident in aviation history. In 1974, as one plane crashed, more than 300 passengers were killed. Why did this disaster happen? Unusual evidence reveals the surprising fact that lock bolts should not have been locked until they were locked.