Limitations associated with optional systems or equipment may be included in this Section or in Section 9, Supplements.

不定期维修检查是指制造商认为特殊或不寻常的情况下对飞机、其系统和组件进行的维修检查和检验，这些检查和检验与上文-10规定的时限无关。

A. Unscheduled maintenance checks are those maintenance checks and inspections on the aircraft, its systems and units which are recognized by the manufacturer as special or unusual conditions which are not related to the time limits specified in -10 above.

B. For the unscheduled maintenance checks and inspections of aircraft, aircraft systems and components, the manufacturer shall not include special or unusual conditions from the time limits specified in -10.

C. If the unscheduled maintenance checks and inspections on the aircraft, its systems and units are special or unusual conditions, the time limits specified in -10 shall be referred to by the manufacturer＇s.

Calculate the pressure with the applicable formula.

A. 用可用的方式计算压力。

B. 计算带可用公式的压力。

C. 用适用的公式计算压力。

The yaw damper works by sensing any yaw motion and then applying corrective inputs to the aircraft＇s rudder to reduce or eliminate any unwanted yawing. It is particularly useful in minimizing the effects of turbulence or other external disturbances that can cause yawing and make the aircraft harder to control. The yaw damper is an important safety feature that helps to improve the overall stability and control of the aircraft, especially during critical phases of flight such as takeoff and landing.

A. 偏航阻尼器通过感受偏航动作然后将正确的信号输给方向舵来减轻和消除不希望出现的偏航。它在减少尾流和其他外部干扰的影响中很有用，气流和外部干扰使飞机难以操控。偏航阻尼器也是一个改进飞机稳定性和操作性的重要安全特征尤其是在起飞和着陆等关键阶段。

B. 偏航减震器通过感受偏航动作然后将正确的信号输给方向舵来减轻和消除不希望出现的偏航。它在减少气流和其他外部干扰的影响中很有用，气流和外部干扰使飞机难以操控。偏航减震器也是一个改进飞机稳定性和操作性的重要安全装置尤其是在起飞和着陆等关键阶段。

C. 偏航阻尼器通过感受偏航动作然后将修正的信号输给方向舵来减轻和消除不希望出现的偏航。它在减少湍流和其他外部干扰的影响中很有用，气流和外部干扰使飞机难以操控。偏航阻尼器也是一个改进飞机稳定性和操作性的重要安全装置尤其是在起飞和着陆等关键阶段。

That portion of the system which is used to extend and retract the landing gear and open and close the landing gear doors. Includes items such as actuating mechanisms, bogie trim, bungees, up and down latches, operating controls, valves and motors, cables, plumbing, etc.

A. 系统中用于放出和收上起落架、打开和关闭起落架门的部分，包括作动机构、轮架配平装置、弹簧筒、上下门闩、操作控制装置、活门和马达、钢索、管道等。

B. 系统中用于延伸和缩回起落架并打开和关闭起落架门的那部分。包括刹车、车轮、浮子、上下门闩、操作控制装置、阀门和电机、电缆、管道等。

C. 系统中用于延伸和缩回起落架并打开和关闭起落架门的那部分。包括旋转密封套、防滑装置、压力指示器、上下门闩、操作控制装置、阀门和电机、电缆、管道等。

封面标题应为“飞行员操作手册”或“飞行员操作手册和FAA批准的飞机飞行手册”。

A. The cover title shall be "Pilot＇s Operating Handbook" or "Pilot＇s Operating Handbook and FAA Approved Airplane Flight Manual".

B. The topic cover shall be "Pilot＇s Controlling Manual" or "Pilot＇s Controlling Manual and FAA Accepted Airplane Flight Manual".

C. The page topic shall be "Pilot＇s Managing Handbook" or "Pilot＇s Managing Handbook and FAA Authorized Airplane Flight Manual".

检查单也可能包含飞行员可能经常使用的与飞机操作相关的补充信息，如性能数据、可选设备操作等。

A. The Check List may also include additional information relevant to the operation of the airplane, such as performance details, alternate equipment operation, etc., which the pilot might rarely use.

B. The Check List may also contain supplemental information pertinent to the operation of the airplane, such as performance data, optional equipment operation, etc., that the pilot might routinely use.

C. The Check List may also cover extra information that the pilot might daily use and is decisive to the control of the airplane, such as performance data, alternate equipment operation, etc.

移除传感器以便接近传感器相邻的结构。

A. To gain entry to the nearby structure, take out the sensor.

B. Remove the sensor to get access to the adjacent structure.

C. Disassemble the sensor to get access to the adjacent structure.

Doors refer to those removable units used for entrance or exit, and for enclosing other structure contained within the fuselage, including passenger and crew doors, cargo doors, emergence exits, etc. Electrical and hydraulic systems associated with door control are included as appropriate.

A. 门指用于进、出以及用于封闭机身内包含的其他结构的可拆卸组件。包括乘客和机组舱门、货舱门、紧急出口等，以及如恰当，还包括电气和液压系统中与门控制相关的部件。

B. 门包括可拆卸的用于连接进口和出口的单元，也用于阻断与机身相连。包括乘客和机组人员门、货舱门、紧急出口等，视具体情况考虑是否包括与门控制相关的电子和液压系统。

C. 门包括可拆卸的单元用于连接进口和出口，也用于连接与机身相关的其他结构。包括乘客和机组人员门、货舱门、紧急出口等，视具体情况考虑是否包括与门控制相关的电力和液压系统。

When you return the airplane to its usual condition, be sure to remove the pin from the release mechanism.

A. When you restore the airplane to its normal condition, make sure the pin is released from the release mechanism.

B. Ensure to remove the pin from the let-go mechanism after you return from the airplane to its common position.

C. When the airplane is in good condition, you must uninstall the pin of the release mechanism.

Servicing include information for servicing the aircraft with proper fuel and oil.

A. 勤务包括为飞机提供适当的燃油和滑油的信息。

B. 勤务工作需要飞机的信息，以便提供适当的燃油和滑油。

C. 勤务需要相应的信息才可以给飞机提供足量的燃油和滑油。