What is the function of utility lights in the aircraft?

Utility lights are specifically designed to provide illumination in various areas of the aircraft to assist crew and passengers. The primary purpose of utility lights is to serve as area or map lights, allowing pilots and crew members to read charts, maps, or any necessary information without interfering with their ability to see outside the cockpit. These lights enable operation in low-light conditions, ensuring that essential tasks can still be performed safely and effectively.

While navigation assistance, cockpit instrument operation, and cabin lighting are critical aspects of flight operations, they specifically pertain to guiding the aircraft, ensuring instrument readability, and illuminating the passenger cabin, respectively. Utility lights, however, are distinct in their dedicated function to provide additional focused lighting for tasks that require visibility without distraction, particularly for navigation and situational awareness within the flight crew's workspace. Thus, the identification of utility lights as area or map lights is accurate and highlights their importance in aviation safety and operational efficiency.