Environmental systems include those units and components which furnish a means of pressurizing, heating, cooling, moisture controling, filtering and treating the air used to ventilate the areas of the fuselage within the pressure seals.

Recommended fuel conservation information shall be integrated into this section to show the pilot how to minimize fuel usage during operation of the airplane.

Close inspection in cable critical fatigue areas can be performed by rubbing a rag along the cable.

Existing analyses were reviewed to identify components and areas that may have exhibited lower margins of safety.

Do not place thermocouple wires adjacent to or crossing the power cord to prevent erroneous temperature readings caused by magnetic flux lines.

Only when both manufacturer and operator do their job can remain an entire fleet of airplanes continuously airworthy.

This part provides for a uniform method of arranging and identifying specific subject material.

One characteristic of the component is preventing its axis of rotation tilting as the earth rotates.

Add 0.02 mm to obtain the correct clearance for a standard spherical coupling.

The oil debris monitor is used to sense the size and quantity of ferrous and non-ferrous metal in the scavenge oil system.

Gauges used to indicate lower pressures use a more flexible tube that uncoils and coils more readily.