What chime do you hear when the flight deck calls for a non-emergency?

What chime do you hear when the flight deck calls for a non-emergency?

• A. One Hi/Lo
• B. One Hi/Chime
• C. Two Hi/Lo
• D. Beep

Answer: (A)

In crew signaling, the alert pattern you hear is used to show how urgent the call is. For a non-emergency call from the flight deck to the cabin, the standard chime is a single two-tone sequence—high then low. This one Hi/Lo pattern is distinct enough to grab attention without implying urgency, so it’s recognized as routine and non-urgent by both crews. The other patterns either don’t match this routine alert or are used for different situations (more urgent or different signaling), which is why the single Hi/Lo chime is the correct choice.

In crew signaling, the alert pattern you hear is used to show how urgent the call is. For a non-emergency call from the flight deck to the cabin, the standard chime is a single two-tone sequence—high then low. This one Hi/Lo pattern is distinct enough to grab attention without implying urgency, so it’s recognized as routine and non-urgent by both crews. The other patterns either don’t match this routine alert or are used for different situations (more urgent or different signaling), which is why the single Hi/Lo chime is the correct choice.