Second Qantas flight diverted due to computer malfunction

Qantas flight QF134 from Christchurch to Brisbane was diverted to Auckland this morning after the pilots received an indication warning in the cockpit. Photo / File

A second Qantas flight has been diverted, leaving passengers waiting on a plane for two hours due to a suspected navigational computer malfunction.

A Qantas spokesperson said Flight QF134 from Christchurch to Brisbane was diverted to Auckland this morning after the pilots received an indication warning in the cockpit.

"Engineers found no issue with the aircraft and cleared it to continue to Brisbane. The flight landed in Brisbane around 60 minutes after its scheduled arrival time," Qantas said.

The Stuff news service reported that passengers were left waiting for over two hours before the aircraft left for Brisbane at 11.20am. A passenger described the incident as very frustrating.

"I changed flights to the early morning flight for work commitments, but despite paying to get an earlier flight I'm still stuck in New Zealand," the passenger told Stuff.

The incident comes after a Qantas flight from Melbourne to Wellington was diverted to Ōhakea Air Force base on Saturday afternoon, also due to a mechanical issue.

Passengers on that flight said the captain informed them the reason for the diversion was one of the plane's flaps was stuck and the runway at Wellington was too short to land safely.

That plane landed at Ōhakea just after 3pm - but passengers had to wait on the plane with no food until about 7pm when Customs officials from Wellington and Napier arrived to process them.

Passengers were then loaded on to buses to Wellington at 8.40pm.

Qantas apologised to the passengers on Saturday.

"We apologise to our customers for the disruption but safety will always be our first priority," the company said.

"Usually in these circumstances the aircraft would divert to Palmerston North, however this was not possible due to local weather conditions."

A spokesperson said the two incidents involved different aircraft and were unrelated.