在经过了一系列的经验教训之后,1957年出现了有关飞行数据记录器方面的强制性要求,当时是要求在所有12500磅以上并在25000英尺以上运营的航空运输机上安装FDR(飞行数据记录器)。随着这一规则的出现,FAA颁布了有关技术标准规范TSO—C51及TSO—C51a,上述文件作为FDR的技术指导性要求长达30余年,至今我国民航使用的大多数 Following a series of lessons learned, a mandatory requirement for flight data recorders appeared in 1957 when FDRs were installed on all air carriers operating above 25,000 feet and above 12,500 pounds (Flight Data Recorder ). With the advent of this rule, the FAA has promulgated the technical standards TSO-C51 and TSO-C51a, the technical guidance requirements of the above documents as FDR for more than 30 years, so far the majority of civil aviation use in our country