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What do the bell/ding sounds on an airplane mean?

Share an anxiety moment on a commercial jetliner. The more details about your experience, the better. Please try to include relevant details including flight #, time of day, airliner, destinations, etc.
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What do the bell/ding sounds on an airplane mean?

Post by planeanxiety » Sat Nov 30, 2019 2:47 pm

Anyone that has traveled on a commercial jetliner has heard the different patterns of bell/ringing sounds during the flight. Most of us probably think the sounds come from passengers asking for some sort of assistance (after hitting a button). This is only partly true.

Quantas airline revealed the bell ring patterns are codes for different things.

Single Chime: Passenger assistance
High-Low Chime Combination: Crew calling each other on the in-flight phone
Ding-Dong Chime: Pilots calling Crew
Three Low Chimes in a Row: Urgent warning from the captain - like heavy turbulence ahead.

In other cases, chimes may indicate altitude awareness such as reaching 10,000ft to use electronic devices or the cabin crew should being cleaning.

It is important to note all airlines likely use different chimes and combinations to create awareness for pilots and crew members. These alerts can be used for security purposes and likely will never be disclosed to the public, ever.

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