[Update 11:20 a.m.] A Qantas passenger jet headed back to Singapore with engine problems shortly after takeoff, Australian Transport Safety Board spokesman Neville Blyth told CNN.
The Boeing 747-400 - carrying 412 passengers and 19 crew members - is the second Qantas jet in two days to return to Singapore as a result of engine trouble.
On Thursday, an Airbus A380 jet made an emergency landing at Changi Airport after one of its four engines shut down as it started a flight to Sydney, Australia.
As the plane headed back to the airport, part of the engine's covering, or cowling, tore off.
Airbus announced Friday that it asked all operators of A380s with Rolls-Royce engines to inspect them as a precaution.
[Original post] A Qantas passenger jet headed back to Singapore with engine problems shortly after takeoff Friday, Australian Transport Safety Board spokesman Neville Blyth told CNN.
The incident comes just one day after Qantas grounded its six Airbus A380 superjumbo jets after an engine part came off during a flight, prompting an emergency landing.