06/05/2012 10:23 EDT | Updated 08/05/2012 05:12 EDT

Air Canada Flight Evacuated Over Engine Smoke

An Air Canada flight from Halifax to Montreal had to be evacuated at its arrival gate Tuesday evening because of smoke coming from one of the plane's engines, a spokesperson for the airline said.

Air Canada Flight 669 from Halifax arrived on time at 6:11 p.m. ET at Trudeau airport in Montreal, but when it pulled to the gate, a member of the ground crew noticed the engine smoke, spokesman Peter Fitzpatrick said.

The pilot ordered passengers immediately off the aircraft. Once it was checked out, they were allowed back on the plane to retrieve their carry-on luggage.

The airport's emergency fire crews were dispatched to the scene, but that's normal procedure when smoke is spotted, Fitzpatrick said.

The initial diagnosis is that the smoke was caused by residual oil on the engine. There were no injuries.