According to police, another passenger observed the 33-year-old allegedly trying to open the doors and intervened by pulling him away.
Airline staff moved Mann to the back of the plane and monitored him for the remainder of the 15-hour flight.
Upon arrival at Sydney Airport, he was arrested and charged with actions threatening the safety of individuals on the aircraft, as well as tampering with the aircraft endangering safety.
Mann pleaded not guilty to the charges and was expected to face a hearing in Sydney’s Downing Centre Local Court on Thursday.
However, he was unable to attend court because, after being released on bail, he had returned to Canada, and due to the charges, faced difficulties in returning to Australia, his lawyer explained.
“He’s ready to come back to defend this case but unfortunately, through no fault of his own, he’s stuck over in Canada,” Mann’s lawyer told the court.
Asked why Mann had been granted bail to travel internationally, his lawyer replied the case against his client was “hopeless”.
The characterisation was rejected by a lawyer for the Commonwealth, who noted Mann had only begun to attempt to organise travel back to Australia in February.
He opposed an adjournment but acknowledged it was important for Mann to be present for the proceedings.
The magistrate set the hearing down for December 5 and ordered the Canadian to attend.
Mann was granted bail after providing a surety of $20,000 which will be forfeited if he fails to attend court when required.
