更换电瓶时，需要在断电多长时间后进行?

Manufacturer＇s maintenance data shall include the information as to special tools, application of protective treatments after inspection, Structural fasteners,etc.

Handbook producer＇s selection of data contained in this section shall be bounded by the concepts contained in the Preface to this Specification.

Mark and protect the removed parts.

Miscellaneous charts are not applicable to any particular system, such as wire diagrams, junction box charts, disconnect plug charts, conduit and wire routing charts, and lists of special tools.

The center of gravity moves in relation to the loads on the wings.

Unless the manufacturer＇s instructions tell you differently, do the procedure that follows.

Aircraft equipped with tail wheels are generally towed forward by attaching the tow bar to the main landing gear.

“注意”指必须强调的操作程序、检查、修理或维护条件等。

Unless the manufacturer’s instructions tell you differently, do the procedure that follows.

在某些飞机上，ß角变化能够改变进近时的阻力，而在其它飞机上，它仅用于在地面上控制滑行和反推。