What is a primary duty of cabin crew before passengers board the aircraft?

The primary duty of cabin crew before passengers board the aircraft involves ensuring that all cabin crew assignments are complete. This process is crucial for the efficiency and safety of the flight operation. Completing assignments ensures that each crew member knows their responsibilities, which can range from specific tasks within the cabin to emergency procedures.

Having a well-organized crew directly contributes to a smooth boarding process since it allows the cabin crew to effectively manage passenger needs and maintain safety protocols. This preparation is a foundational step that enables the crew to provide excellent service and ensure safety onboard once the passengers arrive.

While greeting passengers as they board is also an important aspect of the cabin crew's role, it is secondary to the organizational tasks that must be completed beforehand. Similarly, safety demonstrations are conducted after boarding, and checking passenger manifests is essential but is typically part of the broader pre-flight procedures that occur closer to departure rather than a primary task before passengers board.