The attendant password is used to call the dead on the flight

Airlines carry millions of travelers around the world every year. Besides, they also carried thousands of corpses, dead passengers on their planes.

However, the crew could not call out directly as "dead passengers", "corpses" or "corpses" . If passengers hear, they may be scared or unnecessarily disturbed, affecting flight safety.

Each year about 50,000 dead passengers are transported by plane.(Artwork: Sien).

That is why the airlines have a code name to name the corpses that other passengers cannot detect. According to Liverpool Echo, that's Jim Wilson .

Sara Marsden, Funerals US Online editor-in-chief, American Airlines even has a desk dedicated to serving these special passengers. They called it the Jim Wilson Service American Airlines (Jim Wilson service).

Jim Wilson originated from boxes used to transport bodies. And the "Jim Wilson tray" is a well-packed stone box to preserve the passengers' bodies.

Some other airlines did not use Jim Wilson, they simply called HR - an acronym for dead people and most other airlines refused to disclose this codename. Some firms even claim that they have never heard of naming the dead.