An Air Canada flight that was on its way to Vancouver International Airport had to make an unscheduled landing after a crack was spotted forming in one of the pilots’ windows.

The Boeing 787 aircraft was on its way from Shanghai to Vancouver pilots noticed the damage. They guided the plane to Tokyo’s Narita International Airport and made a safe landing there.

There were 287 passengers on board the September 1 flight, according to a Canadian Press report that cites information provided by the airline.

No one was hurt in the incident. Air Canada told CP that the cockpit’s windows consist of double-paned glass and that the landing in Tokyo was “essentially a precautionary measure”.

No one was hurt in the incident and the plane was rescheduled to carry its passengers to Vancouver today (September 2).