A Canadian resident who saw a crack in the window of the plane called the incident and shared it on social networks.
According to Gadin.Net, REN TV reports that a technical malfunction was recorded on the flight Toronto - Montreal.
The stewardess immediately reported the matter to the captain of the plane.
The pilot of the aircraft, who inspected the crack, concluded that the malfunction did not pose a serious threat.
A statement from Air Canada said the crack in the plastic frame around the window was not serious enough to endanger the lives of passengers.