Wellington, Nov. 29 -- Air New Zealand stated in an official statement that it is experiencing disruptions on some flights due to a global Airbus software update required on all A320 aircraft.

The statement added that passengers travelling on affected A320 routes up to and including Tuesday, December 2, will be offered additional flexibility. Customers can make one free change to travel within seven days of their original booking, hold their fare in credit for twelve months, or request a refund, including for non-refundable bookings.

"We expect to begin contacting you today if your flight is going to be affected. Thank you for your patience and understanding," the airline said.

As Air New Zealand outlined the impact of the software iss...