What must the cabin crew do if they are assisting passengers during fuelling?

When assisting passengers during fuelling, the cabin crew must remain on board until all passengers disembark. This requirement is primarily rooted in safety protocols that ensure both the crew's and passengers' well-being during potentially hazardous situations, such as when fuel is being loaded onto the aircraft.

Staying on board allows the crew to monitor the cabin for any unusual situations, assist with the orderly disembarkation of passengers, and be ready to implement emergency procedures if necessary. Their presence not only facilitates a safe environment but also ensures that all safety regulations are followed diligently during the fuelling process.

In this context, leaving posts or taking breaks would compromise safety and security, as the cabin crew plays a critical role in managing the situation and ensuring that everything proceeds smoothly and safely.