Hong Kong, June 2 -- Air New Zealand (Air NZ) cut back on available seats in April because of ongoing maintenance requirements on engines which power its short and long-haul fleets. Read More Domestic capacity was lower by 3.8% in the month compared with a year ago and long-haul available seat kilometres (ASK) were reduced 2.3% in the 30 days. The Star Alliance member has shrunk ASKs year-on-year in each of the first four months of 2025 and in 11 of the past 12 months. "Capacity reductions in both the month and YTD periods are driven by reduced aircraft availability from global additional engine maintenance requirements," Air NZ said in a regulatory filing. Air NZ said earlier this year it expected to have 11 aircraft grounded due to the ma...