What sound indicates communication from the flight deck to the cabin during flight?

The sound that indicates communication from the flight deck to the cabin during flight is the high-low chime. This specific chime is designed to alert cabin crew and passengers that there is an important announcement coming from the flight deck, typically regarding safety, flight status, or other significant information.

The high-low chime is a distinct sound pattern that effectively captures attention due to its unique tone. This ensures that crew members are prepared to relay information to passengers promptly. The clarity of this chime helps in ensuring that all onboard are aware of the impending communication, which is crucial during flight operations where timely information can enhance safety and passenger awareness.

Understanding these chime signals is essential for cabin crew, as they dictate the tone and urgency of communication from the flight deck. Being able to recognize the sound of the high-low chime reinforces the significance of being attentive to announcements and ensures that the crew can respond appropriately.