In the case of a fire outside the cabin on the ground, what should the crew do?

When a fire is detected outside the cabin on the ground, the crew should first notify the Pilot-in-Command (PIC) and begin assessing the situation. This approach ensures that critical information is communicated to the captain, who has the ultimate authority and responsibility for the safety of the aircraft and its occupants. Assessing the situation allows the crew to gather pertinent details about the fire, such as its size, location, and potential threat to the aircraft and passengers.

This information is crucial in determining the next steps, which may involve preparing for an evacuation, notifying emergency services, or identifying whether any immediate action needs to be taken. Gathering context about the fire allows the crew to make informed decisions rather than reacting impulsively.

The other options, while well-intentioned, may not prioritize the appropriate protocol for ensuring safety in such a scenario. Evacuating all passengers immediately could lead to confusion and chaos, while attempting to extinguish the fire might not be effective or safe without proper training and equipment. Ignoring the fire until landing poses significant risks to everyone on board, as a fire could escalate without timely intervention. Thus, notifying the PIC and assessing the situation is a crucial first step in managing a potential emergency effectively.