Featherby said the pay increase was offered only in return for crew trading away long-held conditions that help create a safe working environment.
“Our members have been clear: enough is enough.”
The strike will affect B787 and B777 flights on February 11-13.
He said Air New Zealand was not prioritising staff and customers.
“Flights are repeatedly impacted by preventable issues: lack of catering and limited choice, missing equipment to effectively look after customers, inoperative seats, and broken cabin features, alongside higher-than-usual cancellations.
“Flight attendants, as the face of the airline, are constantly having to work around these issues and apologise to passengers who have paid premium fares to fly with the national carrier.
“The company is sending a clear message to those who represent its frontline – that they are undervalued, despite carrying the weight of the operation every day.
“It’s time the board and executive team realise that their frontline staff – on the ground, in the call centres and in the air – need real investment. Invest in your people and they will stay and help the airline get through the tough times.”
The Herald has approached Air New Zealand for comment.
Air New Zealand previously called off a planned strike during the Christmas period after an agreement was reached between the company and staff.
The FAANZ was founded in 2020 and represents more than 1000 flight attendants on Air New Zealand domestic and regional services.
Sign up to The Daily H, a free newsletter curated by our editors and delivered straight to your inbox every weekday.