What is the purpose of secondary restraints in aviation?

The purpose of secondary restraints in aviation primarily focuses on enhancing safety in situations where primary systems or safety measures may fall short. When aircraft doors are open, secondary restraints play a crucial role in preventing hazards such as personnel or cargo falling out and providing a layer of protection for anyone inside or near the aircraft. This additional safety measure is vital, especially in maintaining aircraft integrity and ensuring the safety of passengers and crew during boarding and disembarking processes. The implementation of secondary restraints aligns with broader aviation safety protocols, emphasizing preparedness for unexpected circumstances.