(CNN) -- A Qantas Airways flight carrying 199 passengers was forced to turn back to Sydney on Monday because of a technical problem, the airline said.
Specifics of the Boeing 747's technical problem were not immediately clear, Qantas spokesman Simon Rushton said. The flight was bound for Argentina.
The flight landed without incident and everyone aboard the aircraft was fine, Quantas said.
Early this month, Australia's national airline grounded its Airbus A380 fleet after part of a plane's engine cover fell off in flight. One of the four engines on the airliner shut down six minutes after takeoff from Singapore's Changi Airport.
The Sydney-bound flight -- with 440 passengers and 26 crew members aboard -- returned to Changi.
On Friday, Rolls-Royce said the failure of a component in its Trent 900 engine caused an oil fire that forced the emergency landing.