500. APU火警系统在驾驶舱内启动与发动机相同的火警警报。

2863. 对机身的下部做外部检查

2862. 旋转门把手直到下面的门被抬起。

2861. Maintenance technicians need to possess a detailed knowledge of safety procedures used in aircraft servicing, taxiing, run-up, and in the use of ground support equipment

2860. 系统中用于将高压或低压空气分配到使用系统的那部分。包括管道,活门,作动器,热交换器,控制器等,不包括使用系统的供气活门。

2859.When there is an “emergency” situation， it is usually a failure that requires an immediate and quick response， such as an entire engine failure， fire or smoke， or perhaps a rapid drop in cabin pressure

2858. The Introduction Section of the Maintenance Manual should contain either a list of vendor publications or refer to the location of such lists whether they are included in system descriptions orprovided in separate documents

2857. Make sure that the position of the clamp agrees with the position that you recorded during the removal procedure

2856. In addition to bringing big-jet ranges to mid-size airplanes, the 787 will provide airlines with unmatched fuel efficiency ,resulting in exceptional environmental performance

2855. When the target moves into or out of the proximity-sensor’s actuation area it causes a change in the proximity sensor’s electrical property

2854. A hole of several inches in diameter may be cut in a piece of metal at a point where the metal is not needed for strength, and the edges of the hole are flanged to give it rigidity