Polish the window with a circular movement.

Dry the surface with a towel.

Handbooks shall be readily revisable.

The exit doors used to facilitate evacuation that are not normally used for exit.

Note that alterations or repairs to airplane must be accomplished by licensed personnel.

When the engine RPM decreases to 500, stop the engine.

Rinse the basin with water.

Saturate the element for two hours.

The valve flaps are semicircular.

Disconnect the connection upstream of the valve.

Make sure you hear the boarding music when you press the button.