2403.Do the troubleshooting procedure to find the cause of the malfunction.

A. 到达行程末端后作动筒中的微小电门会衔接。

B. 在旅程结束后作动筒中的微小电门会断开。

C. 到达行程末端后作动筒中的微动电门断开。

A. Worn components should be replaced even if the damage is below the maximum limits.

B. Replace components that are worn beyond their maximum limits.

C. The maximum limits can not be exceeded when repairing the worn components.

A. Because pressurized air can blow contamination away from the display unit,you should not use it to clean the holes behind the display unit in order to avoid damaging the equipment.

B. Do not use compressed air to clean the holes on the rear of the display unit.Compressed air will push contamination into the display unit.This can cause damage to the equipment.

C. Do not use compressed air to clean the holes behind the display unit,because it can blow contaminants into display unit which may be damaged.

A. The lower seal is invisible prior to switching the lower bearing on.

B. The lower seal becomes visible when you push the lower bearing up.

C. The lower seal comes into view when you pull the lower bearing down.

A. Disconnect the connection.This connection is downstream of the valve.

B. Disconnect the connection.The valve is downstream of the connection.

C. Disconnect the valve.The valve is downstream of the connection.

A. Only the certified personnel can complete the modification or repair to the aircraft.

B. Pay attention that inspections or maintenance work ought to be carried out by mechanics.

C. Modifications or repairs to aircraft should be achieved by releasing staff.

A. The air conditioning system keeps the air in the pressurized fuselage compartments at the correct pressure,temperature and freshness.

B. The air conditioning system keeps the air in the pressurizing cabin of the fuselage at the correct pressure,temperature and freshness.

C. The air conditioning system keeps the air in the pressurized cabin of the fuselage at the correct pressurization,temperature and freshness.

A. 装配之前,确保适当减少减震器里的压力。

B. 拆卸之前,确保释放减震器里的初始压力。

C. 分解之前,确保减震器里的所有氮气压力已释放。

A. 升降舵/前置平翼的后缘/前缘的水平翼型包括翼梁、翼肋、桁条、镀层/蒙皮、接近口盖、翼尖等结构。

B. 升降舵/机翼所附着的尾翼/机头部分的水平翼型包括梁、肋、弦、板/皮、通道盖、尖端等。

C. 升降舵/前翼所连接的尾部/机头部分的水平翼型包括诸如翼梁、肋、纵梁、板/蒙皮、检修盖、尖端等项目。

D. B.升降舵/机翼所附着的尾翼/机头部分的水平翼型包括梁、肋、弦、板/皮、通道盖、尖端等。

E. C.升降舵/前翼所连接的尾部/机头部分的水平翼型包括诸如翼梁、肋、纵梁、板/蒙皮、检修盖、尖端等项目。

A. The air conditioning cooling system supplies cooled air to the cabin.Includes items such as the cooling unit,indicating systems related to the cooler operation,etc.

B. The air conditioning cooling system supplies cold air to the passenger cabin.Includes items such as the cooling unit,indicating systems related to the cooler operation,etc.

C. The air conditioning cooling system supplies cooled air to the passenger cabin.Includes items such as the cooling pack,indicating systems related to the cooler operation,etc.