In the roles of firefighting, what should the backup do when the firefighter reports to the captain?

In the context of firefighting roles on an aircraft, when a firefighter reports to the captain, the backup role is crucial in ensuring the effective management of the situation. The primary role of the backup in this scenario is to secure items and debris that could pose a further risk, which includes putting items or debris into the bar box. This action helps to maintain a controlled environment and prevents potential hazards from escalating, allowing the firefighter to focus on extinguishing the fire and carrying out their primary duties without distractions or additional risks from unsecured items.

It's important to recognize that collecting additional equipment, dampening the fire area, or providing first aid to passengers are also critical tasks but may not be the most immediate or appropriate response once a firefighter has reported to the captain. The focus here is on containment and safety by securing dangerous or flammable items first, which facilitates a clear and effective firefighting effort.