The key idea is confirming cabin readiness for takeoff. When the flight deck asks the cabin crew to prepare for departure, the Purser’s response should indicate that the cabin is prepared to proceed to the takeoff phase. Saying that the cabin is ready for takeoff communicates that passengers are seated with seat belts fastened, all service items are stowed, doors are closed, and there are no outstanding issues preventing departure. This is the signal the flight deck needs to move into the takeoff sequence. The other options don’t fit this moment: pushback readiness would come when the aircraft is ready to back away from the gate, safety demonstration is a prior cabin procedure rather than a status confirmation, and initial descent is part of the approach, not departure.

Timing the final preflight walk-through to occur during boarding keeps the departure process smooth. It provides a last check of the aircraft’s readiness while passengers are still boarding, so any issues—like a door not fully closed, a loose panel, or a visible safety concern—can be spotted and addressed before pushback. This way, once boarding ends, the crew can proceed to push back with minimal delay, knowing the exterior and cabin are in proper condition.

Coordinating readiness for pushback between cabin crew and the flight deck relies on a clear, specific confirmation that the cabin is prepared and the aircraft is safe to move. The phrase “Cabin is ready for pushback” conveys that all required cabin tasks have been completed—passengers seated with seat belts fastened, all baggage and galley equipment secured, and the area in the cabin prepared with no outstanding issues—and that the aircraft is physically and procedurally ready to begin moving from the gate. This exact wording gives the flight deck a definitive go-ahead that they can proceed with pushback without needing additional checks. The other options don’t match that precise purpose. Pushback clearance granted comes from ground control and relates to external authorization to push back, not a cabin-to-flight-deck readiness signal. Doors are closed and locked is an important readiness item, but it doesn’t communicate that every safety check in the cabin is finished and that the aircraft is cleared to move. Crew is ready to depart is a broad statement about overall readiness and doesn’t specifically address the pushback phase. The specific cross-check phrase used to indicate the aircraft is ready to move is the cabin-ready-for-pushback signal.

A go-around is initiated when a safe landing cannot be achieved on the current approach. This includes scenarios like an unstable approach, deteriorating weather, or runway conditions that make a landing unsafe. The idea is to transition to a safe climb and set up for another approach rather than trying to force a landing. The basic steps involve: applying the go-around power and a nose-up attitude to establish a positive rate of climb, retracting flaps according to the operating procedure as you accelerate, and reconfiguring the aircraft for a new approach (usually retracting landing gear when appropriate and setting the aircraft for the missed-approach or another approach path). Throughout, maintain a safe airspeed, confirm a positive rate of climb, and coordinate with air traffic control as you prepare for the next approach.