How many cabin crew members are required to be on board during fuelling with passengers present?

The requirement for the number of cabin crew members present on board during fuelling with passengers present is based on safety protocols and regulations set forth by aviation authorities. Having four cabin crew members on board ensures that there are sufficient personnel to manage passenger safety and conduct emergency procedures if necessary. This number allows for better communication and coordination among crew members, in case of any incident during the fuelling process. Moreover, it ensures that there are enough eyes on the situation, as well as enough hands to assist passengers or implement safety measures if required.

This safety regulation is particularly important since fuelling operations involve risks such as fire hazards, and having a larger number of trained crew members contributes to mitigating those dangers effectively. Thus, four cabin crew members represent a best practice for maintaining safety standards during fuelling operations with passengers on board.