While the 9-series is longer with heavier landing gear and more fuel capacity, much of the technology and equipment used in the earlier model of the plane will be used in the version for which Air New Zealand is the launch customer.
Planes that will be part of its 10-aircraft fleet are now being made at the Boeing plants in Seattle and Charleston with the first due to roll off the production line soon.
While the cause of the Ethiopian Airways incident is unlikely to be related to battery fires that resulted in the fleet being grounded around the world earlier this year, analysts say any new source of trouble is bad for Boeing.
"People are taking stock of the relative uncertainty surrounding the 787," aviation consultant Richard Aboulafia, of the Virginia-based Teal Group, told Reuters.
"There's a lot of complex electrical systems on this plane, and there's also the realisation that we don't know what the repair of this airplane will look like or what the implications are."
Boeing makes the rear fuselage out of carbon-fibre barrel-shaped sections in Charleston, South Carolina, and repairing the damaged plane could take months if Boeing opts to replace an entire section.
Most other planes are made of aluminium panels that can more easily be replaced.