279.用扳手拧松并拆下螺帽。

493.更换磨损超标的组件。

492.Adjust the potentiometer until you do not hear a hum from the
loudspeaker.

491.Stagger the tab dividers and 1abe1 them with section numbers or titles,
or both.

490.The control unit is installed aft of the cockpit.

489.EACH SURVIVAL KIT ( ) THESE ITEMS.

488.ALL PERSONNEL MUST FULLY ( ) THE SAFETY PRECAUTIONS.

487.After the ailerons go back to neutral make sure they are flush with
the flaps.

486.Any anomaly should be reported to ABC, through the Condition
Reporting System, so that additions and/or revisions can be made to the

485.Each item of Airplane Performance shall include a statement of
significant conditions associated with the data.

484.制造商在本节中应提供一份设备清单,作为单独的文件附于本手册,或单
独提供。