plane was forced to turn back to Sydney in a mid-air emergency after a gaping hole emerged in the casing of one of the aircraft's engines.
China Eastern said the crew on Flight 736 bound for Shanghai noticed damage to the air inlet on the left engine after takeoff Sunday evening and the captain decided to return.
Passengers told Australian media they heard a massive noise and smelled something burning in the Airbus A330 aircraft, which has two engines.
Photos shared on social media showed a large jagged, vertical hole in the side of the casing of the plane's left engine. The airline said the plane returned safely to Sydney with no injuries and it was "taking care of passengers' needs".
Passenger Ashley Beck told Australia's Channel Nine that, after the passengers heard a loud noise, the crew started moving everyone from the left side of the plane.