What are the basic preflight actions required by FAR 91.103?

The requirement outlined in FAR 91.103 mandates that pilots must become familiar with all available information concerning the flight. This encompasses understanding the route, weather conditions, airspace restrictions, and any relevant airport information, including runway lengths, services available, and navigational aids. The intent of this regulation is to ensure that pilots possess a complete understanding of the flight environment before departure, enhancing safety and operational effectiveness.

While the completion of a flight plan, conducting a physical inspection of the aircraft, and filing a notice with air traffic control are important aspects of flight preparation and safety, they are not explicitly stated as basic preflight actions under FAR 91.103. The regulation emphasizes a comprehensive awareness of all pertinent information necessary for the flight, reflecting the importance of preparedness in aviation operations.