If you do n’t pop in your disturbance - canceling headphones the moment you take your rump on a flight of stairs , you ’ll finally hear a conversant sound : a “ ping , ” used by the crew to communicate with passengers . That non - sullen sound signals when you should remain seated and when you ’re devoid to get up , for example . But sometimes those sounds are n’t meant for the customer . AsPeoplereports , airline crews use the gong as a Morse code of sort to alarm each other to issues bounteous and humble .
Qantas Airwaysshared the computer code used on their flights in a blog post last year . The high - low “ ding - dong ” gong that can be heard ringing throughout the cabin is the most common elbow room faculty in different portion of the plane get each other ’s attention . According to Qantas , this sound is the “ ringtone of a bunch earphone from one ship’s galley or section to another . ” These phone call are normally made for non - pressing matter , like insure to see what the pretzel spot is like in another galley when one area runs out .
There ’s also the three-fold blue bell , which is reserved for antecedence messages from the captain or crew . This can be used to take potential upheaval , in which case the flight attendants have metre to plug their collation carts before an official announcement is made .

While this system of rules is standard across Qantas Airways , it vary from airline to airline . Retired U.S. Airways headwaiter John Cox share his own insider information in a blog berth forUSA Today . In his experience , two chimes argue the plane is approach 10,000 foot , while three or more chimes point either turbulency or a sick passenger in need of medical attention . One chime can also put across bumpy skies , but it ’s more usually used by plane captains to enquire for a coffee refill .
hold out morebehind - the - scenes secrets from flight attendantshere .
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