It urged the airline to hire them after its stewardess was attacked by a naked passenger on a flight from Kuala Lumpur to Dhaka on Saturday.
The union’s president, Ismail Nasaruddin, said the incident, which he described as “disturbing”, should serve as a wake-up call.
More so, Nufam had been raising this matter in the past, he said.
“Are they waiting for something more serious to happen before taking appropriate measures?”
He told FMT that stewardesses had complained to Nufam on several occasions of being sexually harassed by passengers.
On Saturday, a Bangladeshi man was detained after he removed his clothes and attacked a stewardess during a Malindo Air flight from Kuala Lumpur to Dhaka on Saturday.
According to news reports, the 20-year-old man, said to be a student at a university in Cyberjaya, was alleged to have masturbated in his seat while watching pornography on his laptop.
Witnesses said the man had walked naked to the toilet and had also urinated on his seat.
The man attacked the head stewardess when he was asked to put on his clothes.
Passengers were reported to have tied up the man to restrain him.
But according to Ismail, who received a report on the incident, the co-pilot had to leave the cockpit to restrain the passenger.
This, he said, raised another security issue.
“While we applaud what the co-pilot did, the fact that he had to leave the cockpit is something that concerns us.
“The co-pilot also put himself at risk and it also jeopardised the safety of passengers,” he said, adding that a pilot should only leave the cockpit to address technical issues.
An airline, Ismail said, should provide at least two male cabin crew members, especially for long-haul flights to prevent such incidents.
When contacted, a Malindo Air spokesperson said that currently the airline had no male cabin crew.
When asked if the co-pilot had assisted in restraining the Bangladeshi passenger, the spokesperson said: “It is still under investigation.”