The revised guidance - a fall of 16 per cent at the midpoint of the range - reflects updated revenue forecasts based on recent forward booking trends.
Flights were disrupted last year when Rolls-Royce engine problems emerged on the Dreamliner fleet, causing the airline to cancel or reschedule flights because of checks on engines and range restrictions for the aircraft.
Revenue growth is forecast to remain positive, albeit at a slower rate than previously anticipated, it said.
Markets showing signs of slower growth included leisure travel within domestic New Zealand and softening inbound tourism traffic.
Partially offsetting the impact from slower revenue growth since the previous guidance was an assumed average jet fuel price for the remainder of the financial year.
Chief executive Christopher Luxon said: "We are concerned with our latest outlook which reflects the softer revenue growth that we are seeing in the second half of the year.
"Therefore, we commenced a review of our network, fleet and cost base to ensure the business is on a strong footing going forward."
The full-year guidance will be discussed in more detail at the interim result announcement on February 28, he said.
Air New Zealand remained committed to its distribution policy that looks through short - term earnings volatility to provide a consistent and sustainable ordinary dividend, he said.
said. Accordingly, the board anticipated declaring an interim dividend of 11 cents.