2153. Extend and retract the actuator through three full cycles

1210. Plastic covers are fitted into the seat tracks to cover the exposed track sections

1209. 固定卡子必须迅速移动到位。

1208. 如果混合后超过两小时,不要使用。

1207. 在操作地面测试设备之前,确保压力调节器设置为零。

1206. 典型的交流系统包括交流发电机、发电机调节系统、交流电源分配汇流条以及相关的保险和线路。

1205. Head aircraft into the wind

1204. The zonal dryer system lowers the humidity in the crown area of the passenger cabin to decrease condensation on the inner surface of the fuselage skin

1203. The pressure decreases while the tires become cool

1202. During the approach to the runway, deviation pointers in the course indicators show the pilot in which direction the aircraft must go

1201. 断开所有测试不需要的系统。