During in-flight turbulence, what is a key action for flight crews to take?

During in-flight turbulence, a key action for flight crews to take is to advise passengers to remain seated with their seat belts fastened. This instruction is crucial for ensuring the safety of all on board. Turbulence can occur unexpectedly and may cause the aircraft to experience sudden movements. When passengers are seated with their seat belts fastened, they are less likely to be injured by being thrown about the cabin.

The emphasis on this action stems from numerous safety protocols designed to protect passengers during such events. A seatbelt is a primary safety restraint system that helps keep individuals secure in their seats, minimizing the risk of injury from turbulence-induced jolts or drops.

In contrast, other options are not aligned with best safety practices during turbulence. For example, suggesting passengers take photos could distract them from the importance of remaining seated and secure, while providing in-flight entertainment would also divert attention away from safety instructions. Increasing cabin pressure is irrelevant in this context, as cabin pressure management is not a direct response to turbulence and is managed under different scenarios.