1247. The elevators must move symmetrically

2116. Functional tests may require supplemental ground support equipment and should be more specific and detailed than an operational test A functional test is tests at minor maintenance periods

2115. The battery energizes the emergency exit light circuit

2114. 在钢表面涂上润滑油

2113. These cutout switches operate cutout valves, which are part of the stabilizer trim control modules, to isolate hydraulic power to stabilizer trim components in the tail

2112. Decrease pressure

2111. 给气动系统释压。

2110. The power output of the APU generator or external power cart can also connect to the AC buses through the closed auxiliary power breaker( ) or external power contactor( )

2109. Solenoid valves shall be indicated as such and shall include a notation indicating whether the valve is spring-loaded to the open or closed position

2108. The flow of systems shall be presented in patterned shading and by having a minimum of turns in the lines

2107. You can use equivalent alternatives for these items