Part 91.209 (Aircraft Lighting)

Part 91.209 outlines the lighting requirements for aircraft flying under general aviation rules. It mandates that aircraft must be equipped with certain lights, such as navigation and anticollision lights, to ensure visibility and safety during night operations or low visibility conditions. These lights help other pilots and air traffic control see the aircraft's position, direction, and status, reducing the risk of collisions. The regulation specifies when and how these lights should be used, maintained, and turned on, promoting safe operation during various phases of flight, especially in dark or poor visibility environments.