What does ELS stand for in aviation?

The correct answer, Emergency Light System, refers to a critical component installed in aircraft designed to provide illumination in the event of an emergency, particularly during an evacuation. This system enhances visibility for passengers and crew, allowing them to navigate safely to exits. Emergency Light Systems are typically activated automatically when there is a loss of power, ensuring they function precisely when needed most.

The terminology used in aviation can vary slightly across different aircraft manufacturers, leading to similar but distinct options like "Emergency Lighting System" and "Emergency Locator System." However, "Emergency Light System" specifically encompasses the comprehensive range of lighting features designed to aid in emergency situations during flights. Understanding this terminology is essential for aviation safety protocols and ensuring effective emergency response during an incident.