Also, the number of cases in which the cabin crew had to restrain a passenger rose 169 last year from 113 in 2015.
Alcohol played a role in a third of the level 2incidents, the report said.
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The trade group said most of the drinking took place at airport bars and restaurants or in the plane without the knowledge of the crew. The trade group urged bar and restaurant operators to train employees to avoid serving too much booze to passengers who are about to board planes.
It also called on more countries to ratify an agreement to impose harsher punishments on misbehaving passengers.
“Too often those accused of unruly and disruptive behavior are often released without charge,” the report said.