在航材成本控制中，送修成本是一个重要组成部分。目前有许多航材维修厂家，仅国内就有几十家，每个厂家都有许多项航材的检测、校验、修理和大修等工作能力。但是，根据其各自的基础设施、维修检测设备和人员技术水平的不同，各个厂家都有自己的修理特色。这就要求航材部门了 In the cost control of aviation materials, the cost of repairs is an important part. At present, there are many aircraft maintenance manufacturers. There are only dozens of domestic aircraft manufacturers. Each manufacturer has a lot of capacity for inspection, calibration, repair and overhaul of aviation materials. However, according to their respective infrastructure, maintenance testing equipment and personnel technical level, each manufacturer has its own repair features. This requires the aviation department