After completing a three-day trip with an overnight plane stay, what must a flight attendant do before leaving the aircraft?

The requirement for a flight attendant to check lavatories and close out kits before leaving the aircraft after a three-day trip with an overnight stay is crucial for maintaining cleanliness, safety, and the overall well-being of future passengers. By ensuring that lavatories are in order, flight attendants help to uphold hygiene standards and create a positive environment for the subsequent flight. Additionally, closing out kits involves securing any materials or equipment used during the flight, which is essential for proper inventory management and readiness for the next service.

Overall, this process is part of the final duties flight attendants perform to ensure the aircraft is properly prepared for the next operation, reflecting the airline's commitment to service excellence and efficiency.