A Singapore Airlines Airbus A380 turned back to Singapore after an engine problem three hours into flight SQ26 to Frankfurt on Tuesday, the latest in a string of incidents affecting the world's biggest passenger plane.
SIA said crew reported a surge in one of the A380's four Rolls-Royce Trent 900 engines and it would be inspected in consultation with the British engine-maker.
The A380 landed without incident and passengers were put on a replacement flight, an SIA spokeswoman said, adding the original flight left Singapore at 00:05 am local (1605 GMT).
"We are aware of the situation and working with our customer to investigate," a Rolls-Royce spokesman said.
A380 planes have been affected by a number of technical problems including minor cracks on part of its wings.
In late 2010, an engine on a Qantas Airways A380 exploded in mid-air over Indonesia, forcing the plane into an emergency landing in Singapore and leading the Australian carrier to ground its superjumbo fleet for nearly a month.
SIA, Singapore's flag carrier, is one of the biggest users of the A380, with 16 of the superjumbos in service and three more scheduled for delivery this year.