Hong Kong Airlines is investigating an engine chain slip incident, which happened during a scheduled engine change at Hong Kong International airport.

In response to queries from Flightglobal, the carrier confirmed that one of the engines on its A330 "was tilted", during a scheduled engine change on 5 May.

"The incident is suspected to be caused by the slipped engine lifting chain and is under internal investigation. There was neither injury nor influence to the airline's flight operations and flight safety," says the airline, adding that the case has also been reported to the Hong Kong Civil Aviation Department.

Asked if the engine was damaged, the airline declined to comment.

An image on a Chinese media report shows the cowling of the aircraft's left engine titling towards the ground, with visible cracks.

Flightglobal’s Fleets Analyzer shows that the airline operates 14 Airbus A330s, comprising nine -200s and five -300s, these are powered by a mix of Rolls-Royce Trent 772B and Pratt & Whitney PW4170 engines.

Source: Cirium Dashboard