Melbourne, Jan 19 (Agencies): A New York-bound Qantas jet carrying 375 people made an unscheduled landing in Fiji due to a fault with one of its engines, just four days after  another safety scare on one of its aircraft.

The flight from Sydney to New York, was diverted because of a fuel valve fault on Tuesday, a spokeswoman for the Australian airline said on Wednesday.

QF107 left Sydney around 12.15 pm (local time) and was heading towards New York via Los Angeles when the flight crew spotted in-flight problem in the Boeing 747-400 aircraft, she said.

The plane was diverted to Nadi airport in Fiji and landed there at 6.20pm (local time), according to media reports here.

Engineers fixed the fault overnight and the flight was on its way to Los Angeles.

Earlier on Saturday, QF11 from Sydney to Los Angeles was preparing for take off when one of its engines experienced a contained turbine blade failure. The 344 passengers on board, some of whom described hearing a "loud bang", were moved to a second plane that departed four hours later.

The in-flight problem is the latest in a series of technical issues to plague Qantas since a November 4 engine blowout on one of its A380 aircraft, prompting it to ground its entire fleet of the superjumbo temporarily.