Etihad Airways flight EY450, from Abu Dhabi to Sydney, diverted to Adelaide Airport following a warning indication within the cockpit, said an Etihad Airways spokesperson on Saturday.

''A suspected technical fault that is undergoing investigation,'' the spokesperson said in a statement.

''The aircraft landed at 5am (local time) and was inspected by engineers as guests were taken to the terminal and provided refreshments and regular updates. Due to crew rest requirements, Etihad is assisting guests to their ultimate destination on other airlines. Additionally, flight EY451, from Sydney to Abu Dhabi, has been canceled. Guests who have been booked on the flight will be rebooked on later Etihad Airways services out of Sydney.'' ''Etihad Airways apologises for the inconvenience. The safety of our guests and crew is of paramount importance," he added.