SINGAPORE - ANOTHER Qantas plane made an emergency landing in Singapore on Friday after experiencing engine problems, an airline spokeswoman told AFP.

The Boeing 747-400 landed safely at Changi Airport without incident, she said. 'Shortly after take-off the captain experienced an issue with one of its engines,' the spokeswoman said. 'The aircraft landed safely a short time later without incident.'

A passenger on board the plane said he saw flames 'coming out' of the aircraft's engine minutes after take-off.

Changi Airport's website says the plane, flight QF6, had been scheduled to leave at 7.55pm (1155 GMT).

It was the second incident in as many days involving a Qantas plane. On Thursday, an Airbus A380 operated by the Australian flag carrier made a dramatic emergency landing in Singapore after an engine failed minutes after taking off on the flight from the city-state to Sydney.

Qantas chief executive Alan Joyce said early signs pointed to a 'material failure or a design issue' in the Rolls-Royce engines after one exploded just minutes into flight QF32 from Singapore to Sydney on Thursday.

Another emergency landing