1679. Remove oil and grease with a degreasing agent

1684. A GUARD ON THE CONTROL SWITCH OF THE PUMP PREVENTS ACCIDENTAL OPERATION

1683. 系统中用于在进近和着陆期间监控飞机飞行的部分。这包括感应,计算,指示和警告设备,例如计算机,指示器,警告灯等。

1682. 增压的一个关键因素,是机身承受结构内部压力,与外部环境压力增加所产生的力的能力。

1681. 将活门设置到完全关闭位

1680. 机油温度对机油油位指示器的精度有影响。

1679. Remove oil and grease with a degreasing agent

1678. Put the aircraft back to its initial configuration

1677. Make sure that all the lights on the front of the CMU do not come on

1676. Make sure that the cabin pressure stays constant

1675. 确保新地板面板的构型和尺寸与已拆下的相同