Must crews turn on their anti-collision lights while taxiing across a runway?

Turning on anti-collision lights while taxiing across a runway is a crucial safety protocol in aviation. The primary purpose of these lights is to increase the aircraft's visibility to other pilots and ground personnel, especially in high-traffic areas such as runways. By activating these lights, crews enhance their aircraft's presence, thus reducing the risk of potential collisions or incidents.

Operating anti-collision lights during taxiing, particularly when crossing runways, is an industry-standard practice that is observed regardless of the time of day or weather conditions. This consistency ensures that all aircraft are visible to one another and to those personnel who may be on or near the ground, which is essential for maintaining safe airport operations.

While some may consider specific conditions or times of day for the activation of anti-collision lights, such as nighttime or low visibility, the requirement to have them on while taxiing across a runway is universal. It’s a proactive measure to promote safety in any situation.