What is a required condition for crew baggage during takeoff and landing?

The requirement for crew baggage during takeoff and landing is that it must be secured in approved stowage locations. This is important for ensuring the safety of the aircraft and its occupants. Securing baggage helps to prevent any potential hazards that could arise if the baggage were to move unexpectedly during critical phases of flight, such as takeoff and landing, which are the most crucial moments. Proper stowage ensures that the center of gravity of the aircraft remains stable and prevents obstruction in the aisles or emergency exits.

In contrast, the other choices present conditions that do not align with safety protocols. Storing baggage in the flight deck is generally not permitted due to space and safety restrictions, while shiftable locations could pose a risk during turbulence or sudden maneuvers. Allowing baggage to remain unmonitored by the flight attendant is also against safety regulations since it could lead to unsecured items becoming projectiles in the event of a sudden stop or impact. Thus, the requirement for crew baggage to be secured in approved stowage locations is essential for maintaining a safe environment onboard the aircraft.