Hypoglycemia can quickly impair judgment, coordination, and reaction time, which are crucial for safe flight operations for both the flight deck and cabin crew. When there is an immediate medical need for food, addressing that need becomes the top priority because restoring blood glucose promptly reduces the risk of errors, confusion, or loss of consciousness. In practice, this means pausing or adjusting the meal service so the affected crew member can obtain fast-acting carbohydrates right away, ensuring safety takes precedence over completing the current service. Once blood sugar is stabilized, service can resume.

Flight deck lockdown means suspending traffic between the passenger cabin and the flight deck door. In practice, the cockpit remains secured with the door closed and no one from the cabin is allowed to approach or enter, so the crew can manage a security situation with the flight deck isolated. It’s about restricting movement through that doorway, not just locking the door or closing other cabin doors. The other options describe actions that don’t capture the intent of isolating the flight deck from cabin traffic.

When leadership in the cabin is needed, the crew follows a defined chain of command. If the designated In-Charge becomes incapacitated, the most senior flight attendant remaining on board steps into that role. This person has the deepest experience with cabin procedures, passenger management, and coordinating the crew under pressure, which is crucial for maintaining safety and order in an emergency. Relying on seniority ensures a clear, immediate line of authority and consistent decision-making, rather than relying on who was trained most recently or leaving the decision to the captain at that moment. The least senior would lack the necessary credibility and authority, and a captain’s on-the-fly choice would disrupt the established hierarchy.

The maximum load is the weight the wheelchair is designed to safely carry when secured for transport. The wheelchair in this scenario is rated for 100 kg (220 lb), which reflects the total load the chair and its securing system can handle while in the cabin. Staying at or below this limit ensures the chair, its brakes, frame, and the aircraft’s restraint system all perform safely during movement and turbulence. The other weight options fall short or exceed the tested capacity, so 100 kg is the appropriate maximum.