Air New Zealand engineering staff have voted to strike for three days.
While mediation is ongoing, workers have decided to strike for three days from 21 December.
This period spans three of the busiest days in the airline annual calendar. On 21 December alone, Air New Zealand has close to 42,000 customers booked to travel domestically on its A320 jets and internationally faced potential flight cancellations.
The airline accused just under 1000 engineers of deliberately using Kiwi families' much anticipated Christmas holidays as a bargaining chip.
The airline detailed the average income of maintenance engineers, logistics and other staff to strike — $115,000 – angering unions who accused it of taking an unnecessarily aggressive approach.