More than half of the engines on Air New Zealand's 11 Dreamliner planes have had to be checked since last December when two of its long haul flights had to turn back soon after take off because of concerns over engines. Thirteen of the Rolls-Royce Trent 1000 engines that keep the airline's Boeing 787 planes aloft have had the earlier than planned maintenance. Guyon Espiner talks to RNZ's Kim Griggs.
12 Mar 2018
