3144. Make sure that the latch is fully engaged

A. You had better not to weld engine components when the engine is installed on the airframe.

B. You＇re not allowed to operate engine components when the engine is installed on the airframe.

C. You had-better not to weld engine components when the engine is running.

A. Slowly and fully extend the RAT and make sure that it does not touch other parts;

B. Slowly retract the RAT and make sure that it does not touch other parts;

C. Extend the RAT to full extended position in no time, and make sure no touch other parts;

A. Be sure that the hose is not blocked.

B. Make sure that the tubes have no deformation.

C. Ensure that the pipes are not damaged.

A. Increase pressure continuously over 10 minutes.

B. Keep the pressure increase within 10 minutes.

C. Continue the pressurization for 10 minutes.

A. The self-locking function decays after several removal and installation.

B. Repeated removal and installation causes the self-locking nut to lose its locking feature.

C. Avoid repeated removal and installation of the self-locking nut to protect its locking feature.

A. The Handbook producer can choose the alternatives in addition to his limited choice or otherwise limited.

B. Apart from the situation that there are some restrictions in the choice or otherwise limitations for the Handbook producer, the producer can do his own decision.

C. Other than the event that the handbook producer has limitations in choice or otherwise things, he can decide without mind.

A. 所有三个螺栓孔必须与燃油管匹配。

B. 所有三个支架孔必须与燃油管对齐。

C. 所有三个支架孔必须与然油管齐平。

A. The isolation blanket has a waterproof layer that is installed in a brick configuration to prevent leakage of condensed water into the carriage.

B. The insulation blankets have a waterproof layer and are installed in a tiled configuration to prevent leakage of condensed water into the compartment.

C. The insulating blankets have a watertight layer which is mounted in a shingled configuration to protect leakage of water condensation into the compartment.

D.

E.

F.

G.

H.

I.

J.

A. At the location shown in the figure, waterproof corrosion inhibiting compound has been used on certain aircraft construction. To keep the effectiveness of this protection, reapply the compound in these or other locations periodically.

B. Water displacing corrosion inhibiting compound has applied on certain airplanes structure in the locations in this figure. Periodic reapplication must be applied in these and other locations, so as to maintain effectiveness of this protection.

C. Water displacing anti-seize compound has been applied on certain airplanes construction in the locations in this figure. Periodic reapplication should be utilized in these and other locations, in order to keep effectiveness of the protection

A. Don＇t handle the APU line, when you get close to the back fuselage

B. When you enter into the front fuselage through the access door, don＇t touch the APU line

C. Don＇t hold the APU line when you ap roach the aft fuselage through the access panel