The Boeing 747 marked the beginning of a new era in air transport.

查阅飞机记录本的故障记录以及中央DU或CDU上的相关故障信息，听取机组反映的故障, 报告故障并处理。

如果杆端轴承的径向磨损大于0.010英寸，在接下来的10个飞行循环或25个飞行小时内（先到为准）将其报废。

These ALIs are mandatory and cannot be changed or deleted without the approval of the FAA office that is responsible for the airplane model Type Certificate, or applicable regulatory agency.

Revisions, additions and deletions shall be identified by a vertical black line along the outside of the page opposite only that portion of the printed matter that was changed.

This method is recommended as minimizing errors of distribution, and also informs owners of the availability of systems and equipment.

The airplane general arrangement shall be illustrated with a scale line drawing consisting of plan, side and front views presented in a vertical sequence upon a single page.

Three computers collect data and parameters from the systems and put them together on the data link to the display unit.

If you install the upper drag strut incorrectly, it will hit the lower drag strut during retraction.

If you do not install the rigging pin, the elevators will move down when there is no pressure in the system.

If the filters become clogged after an unusually short time, send them to the laboratory for analysis of the contamination.