What is the role of the No3 after a CC incapacitation prior to departure?

The role of No3 after a CC incapacitation prior to departure is to take on the responsibilities typically associated with both No2 and No3 duties. In a cabin crew context, each member has specific roles, but in emergency situations or when one crew member is incapacitated, it becomes essential for the remaining crew to adapt and ensure the safety and well-being of passengers.

The No3 would step in to manage additional responsibilities that encompass both support within the cabin and the coordination needed in the flight deck operations. This situation emphasizes the need for teamwork and versatility among crew members, ensuring all safety protocols are maintained, and the flight can proceed safely.

The other options suggest specific tasks that might be covered by the No3 role, but they do not encompass the broader requirement of taking over both sets of duties, which may include operational, safety, and passenger service aspects. Thus, the designation of taking on both roles is crucial for maintaining a well-functioning and responsive cabin crew in the face of an emergency.