2439. 此工具是可选的。

924. Tank unit capacitance varies as a function of the fuel level in the tank

923. Make sure that there are safety barriers around the engine exhaust area

922. For general aviation aircraft this material may be covered in Sys/Chap25

921. Engine Failure Procedures shall be provided for all airplanes for all cases of engine failure, including partial failure, during takeoff and in flight

920. Write only one instruction in each sentence unless two or more actions occur at the same time

919. MAKE SURE THAT THE CABLES DO NOT CATCH ON THE LEVERS

918. 如果填充物与工具牢固的联合在一起,用冷水湿润工具。

917. 当警告,告诫或注意由两个或更多个段落组成时,不得在每个段落上方重复标题“警告,告诫,注意”。

916. 该信息适用于整个系统。

915. 系统中用来控制座舱内空气温度的部分。包括控制活门、传感装置、电门、指示器、放大器等,如适用。