621、Servicing include information for servicing the aircraft with proper fuel and oil.

702、Vertical lists make long complex sentences much easier to understand.

701、Verbs are given in the forms that are/permitted.Do not use verb forms that are not listed.

700、Utilizing an airplane as intended by the manufacturer, combined with sound inspection and maintenance practices, forms the basis for assuring the airplane remains airworthy and safe to operate.

699、Use the specified tool to seal the opening

698、use the manual procedure if it is not possible to use the automatic control

697、Use the manual control in an emergency.

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

695、Units of measurements shown in manual must be consistent.

694、Turn the knob to make the display go out of view

693、Troubleshooting information describing probable malfunctions, how to recognize those r malfunctions, and the remedial action for those malfunctions shall be provided.