Nine Air NZ planes are powered by an engine type the manufacturer says now requires more frequent maintenance checks than was initially directed.
Air NZ announced on Saturday that their Boeing 787-9 Dreamliner fleet was affected by a global issue with a type of Rolls-Royce manufactured engine.
Rolls-Royce issued a directive that maintenance checks on a specific part of the Trent 1000 engine compressor are to be undertaken every 300 one-way journeys rather than every 2000.
A total of 380 engines globally are impacted including the nine in the Air New Zealand 787 fleet.
Air New Zealand expects that there will be some impact to its international schedule as a result of the checks.
The airliner also has Trent 1000 TEN model engines in its 787 fleet which are unaffected.