Make sure that the arrow on the check valve points away from the ground supply duct.

This Section of the Pilot＇s Operating Handbook shall clearly and precisely describe the recommended procedures for the conduct of normal operations.

The Check List may be arranged by "Challenge" and "Response" headings for two pilot airplanes or by "Item" and "Condition" headings for single pilot Airplanes.

As necessary, use the applicable SAFETY BARRIERS, specified by the operator＇s instructions and your local regulations. These communications are subjected to atmospheric disturbances and difficult to understand.

If the clearance dimension is out of tolerance, adjust the clearance dimension between the extend proximity sensor [44A] and the target [45]. Some of the ducts in the air distribution system are wrapped with insulation material.

Space permitting, legends shall be spelled out within the diagram rather than abbreviated by numerals to a list of legends at the bottom or on an adjacent page.

When accumulated revisions, including back-up pages, total over 60% of the total pages in the manual, a reissue of the manual should be prepared.

A clogged air filter causes low flow through the equipment cooling supply system. Replacement of the air filter on a regular maintenance schedule is necessary. Release the quick release tabs on the air filter housing cover to get access to the filters.

The positive pressure relief valves are fail safe devices that bleed fuselage pressure overboard if the aft outflow valve fails closed.

Using the wet wing concept, all fuel is stored in three tanks, main tank 1, main tank 2, and center tank, which are constructed of the primary wing structure.

Sometimes you must break long sentences into shorter ones, delete information which is not necessary, or ask an engineer for further explanation.