What should be done to activate the Cabin Lighting before flight?

To activate the cabin lighting before flight, it is essential to turn them all to bright for a specified period, typically around 15 minutes. This procedure serves several important purposes. First, it ensures that all passengers and crew members have sufficient visibility to find their seats and stow their belongings safely, thereby enhancing safety and comfort during the boarding process. Additionally, bright cabin lights help to conduct final checks for any passengers who may need assistance or special attention before takeoff.

Turning the lights to dimmed mode might not provide adequate illumination for boarding, while activating only emergency lights does not fulfill the need for general visibility and preparation before the flight. Keeping the lights off entirely until takeoff could lead to potentially unsafe conditions, as it would not allow crew members to perform necessary safety checks or assist passengers effectively before departure.

Thus, setting the cabin lighting to bright for a specified duration is a standard procedure designed to optimize safety and operational efficiency prior to a flight.