2939. Replace the slide valve if its surface is rough

424. The trailing edge flaps up limit switch sends flap position data to SMYD 1 The SMYD 1 uses this during yaw damping to limit rudder movement when flaps are up

423. Rectify the defect before you stop the pump momentarily

422. Increase the pressure slowly ( )

421. The difference between the two dimensions must not be more than 010 mm

420. The additional information may be imparted to existing employees through the recurrent training requirements

419. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed aircraft damaged, etc for short or long terms in extremes of weather conditions

418. When the engine RPM decreases to 500, stop the engine

417. 在烤箱里烘干油滤。

416. Basically, it is a guide to industry standardization of proven concepts to be presented in a form most useful to pilots

415. When the selector is in the 100% position, the user will( ) pure oxygen