Make sure that there is no blockage in the pipe.

In the description of the airplane＇s Doors, Windows and Exits, how to close a door or window if it opens accidentally in flight and any restrictions there may be on purposely opening in flight shall be discussed.

In the description of the airplane＇s Seats, Seat Belts and Shoulder Harnesses, how to adjust the seats shall be described shall be provided.

In the description of the airplane＇s Baggage Compartments, a warning against carrying hazardous material anywhere in the airplane shall be provided.

In the description of the airplane＇s Baggage Compartments, a warning against putting children in a baggage compartment shall be provided.

In the description of the airplane＇s Wing Flaps, Dive Brake or Spoiler Systems, how application of these affects pitch attitude, airspeed, trim and stall speed shall be described.

In the description of the airplane＇s Wing Flaps, Dive Brake or Spoiler Systems, how they are operated shall be explained.

In the description of the airplane＇s Ground Control, how the pilot mechanically controls nose wheel or tail wheel shall be described.

In the description of the airplane＇s Flight Instruments, how to check them for proper operation and how to recognize a malfunction shall be explained.

In the description of the airplane＇s Flight Instruments, any new kinds of flight instruments shall be briefly described and principle of operations explained.

In the description of the airplane＇s Instrument Panel, if installed, how the annunciator panel operates shall be explained.