KEY POINTS:
Qantas' list of problems with aircraft maintenance and engine performance has grown longer with a jumbo jet grounded in New Zealand last night.
One engine on a Boeing 747-300, QF25 from Melbourne, shut down while approaching Auckland Airport, a Qantas spokeswoman in Auckland said today.
The crew managed to restore power and the plane landed safely.
"A faulty fuel-flow regulator was replaced overnight and the flight (to Los Angeles) is now scheduled to depart at 1.40pm today," the spokeswoman said.
The incident came on a day of continuing turmoil for Qantas, in which a 767 was grounded in Melbourne because of a problem with the flap indicator in the cockpit.
In another incident yesterday a second Boeing 747 had to be taken out of service for a time to replace a jack screw driving the plane's horizontal tail.
Urgent maintenance was needed because the plane's tail was at risk of breaking away.
The airline confirmed that QF31, due to depart Sydney for London via Singapore, had been delayed because of "maintenance requirements associated with a horizontal stabiliser jack screw".
On Tuesday afternoon, the airline grounded six planes - a quarter of its 737-400 fleet - after finding discrepancies in their maintenance records.
- NZPA
