2909. 如有必要,增加一个垫片。

454. Fire can occur by flammable fluid, it endanger the airplane

453. The hydraulic system supplies power to the actuators

452. fill the hydraulic tank with the specified hydraulic fluid

451. 小心不要导致衬套损坏。

450. 连接万用表到电流测量感应器输出端。

449. Generally, the wheels of airplanes are attached to the shock struts, and oil or air is used by the struts to relieve the impact of landing

448. 如果机翼上的所有扭力管未连接,则使用适配器单独的驱动每个襟翼。

447. Adequate terrain clearance is necessary for ILS approach

446. 确保指示器显示的数值正确。

445. The cover title and applicable airplane designation shall be prominently displayed on the cover or spine of the Handbook Other information may be displayed on the cover