Cabin air recirculation fan 座舱空气循环风扇
NOTE : The end of the sleeve (2) must be within the colored markings painted on the cabin recirculation fan (15).
注意：衬套（2）的末端必须在客舱再循环风扇（15）的涂色标记范围内。
Remove the blanking plugs from the cabin recirculation fan (15), the sleeve (1) and from the check valve (7).
从客舱再循环风扇（15）上拆下堵盖、从单向活门上拆下衬套。
The extraction fan 1HU removes air from the lavatories and the galleys through a duct which is installed above the cabin ceiling.
抽气风扇通过安装在客舱天花板上的管道，把厕所和厨房的空气抽出来。
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