Overhaul of any or all components in this chapter must be accomplished in a qualified shop in accordance with data supplied by the component manufacturer.

A. For release with the ground preconditioned air connection single valve inoperative in the open position, do these steps.

B. For dispatch with the ground preconditioned air connection check valve inoperative in the open position, do these steps.

C. For release with the ground reconditioned air connection check valve inoperative in the open position, do these steps.

A. Put on the electrical power.

B. Energize the ground service network.

C. Pressurize the ground service network.

A. 该组件分配和过滤油液。

B. 该组件增压和过滤油液。

C. 该组件增压和旁通油液。

A. Ensure you switch off the brown VALVE CLOSED light next to each switch.

B. Make sure the amber VALVE CLOSED light below each switch goes off.

C. The purple VALVE CLOSED light under each switch is confirmed off.

A. “紧急情况”却几乎总是出现某个故障需要立即处理，例如全部动力装置故障、火灾或烟雾或客舱快速释压。

B. 然而，“紧急情况”几乎总是涉及需要立即快速响应的失效，如一发完全失效、机上失火或冒烟或客舱快速释压。

C. 而“紧急情况”总是包括某种故障需要快速应对，比如动力装置完全失效，火灾或烟雾或者快速客舱失压。

A. 衬板的厚度应该是初始翼梁衬垫的厚度的1-1.2倍。

B. 加强条的厚度乘以1-1.2就得到初始长桁衬垫的厚度。

C. 压条的厚度应是初始长桁衬垫的厚度的1-1.2倍。

A. 警告和告诫应置于其适用的文本前，但注释则可以根据需强调的内容置于相应文本前或文本后。

B. 警告和告诫应置于其适用的文本后，但注释则可以根据显示的材料内容置于文本前或文本后。

C. 警告和告诫应置于其适用的文本上方，但注释则可以根据需要强调的文本内容置于其上方或下方。

A. The damper prevents abnormal movement of the control.

B. The control is protected from unusual movements by the damper.

C. The damper prevents sudden movement of the control.

A. The power required to run an engine, in flight, at the lowest speed that will ensure satisfactory engine operation and airplane handling system.

B. The power required to run an engine, in flight, at the lowest speed that will ensure satisfactory engine operation and airplane handling characteristics.

C. The power required to run an engine, in flight, at the lowest speed that will ensure correct engine operation and airplane handling characteristics.

A. Before restarting the engine, make sure to clear the ground from any fuel spills.

B. Remove all spilled fuel from the ground before making the first attempt to start the engine.

C. Ensure that no fuel on the ground is eliminated before proceeding with engine startup.