Qantas insists it is still on track to receive the first of its 787 Dreamliners in the second half of this year despite two Japanese airlines grounding their fleets of the new-age aircraft.

All Nippon Airways and Japan Airlines grounded their planes today following an emergency landing by one of the passengers jets.

Despite a spate of problems with Dreamliner planes in recent weeks, Qantas said that it still expected its budget offshoot, Jetstar, to take delivery of the group’s first 787s in the second half.

The airline remains hopeful that the Dreamliner’s manufacturer, Boeing, will resolve any problems before the planes are due to arrive in Australia.

ANA has grounded all of its 17 Dreamliners while JAL suspended 787 flights scheduled for today. One of ANA’s Dreamliner made an emergency landing after an instrument indicated a battery error, which triggered emergency warnings to the pilots.

The latest problems come a week after an electrical fire aboard one of JAL’s Dreamliners while parked at Boston’s Logan Airport.

The Australian Licensed Aircraft Engineers Association’s president, Paul Cousins, welcomed the Japanese airline’s decision to ground its Dreamliner fleet.

‘‘It is good to see an airline take a proactive stance. They should be applauded for doing it,’’ he said.

Mr Cousins said he expected that the latest problems besetting the 787 program to have an impact on the delivery of planes to airlines such as Qantas.

‘‘I reckon Qantas will be on the phone to Boeing asking what is going on. At the moment there is no doubt that [the 787 program] is having teething problems that are out of the ordinary,’’ he said.

In August Qantas cancelled orders for 35 new Boeing 787 Dreamliner planes – worth $US8.5 billion ($8 billion) at list prices – in an attempt to bolster earnings this financial year.

Despite the cancellations, Qantas still has purchase rights and options for 50 of the longer-range 787-9 aircraft, the first of which will not arrive until 2016.

Qantas has not altered the delivery of the 15 787-8 Dreamliners to Jetstar, the first of which is due to arrive in the second half of this year. The low-cost airline will use the 787s to replace its Airbus A330s on routes to Japan, Hawaii and Singapore.

Air New Zealand is also buying eight Dreamliners, the first of which it is not due to receive 2014.

So far, Boeing has delivered 50 Dreamliners to eight airlines. ANA was the first customer, receiving its first 787 in the second half of 2011.