Emirates Presses Boeing on 777X Performance as Record Deal Looms

Emirates President Tim Clark is pushing Boeing Co. to ensure its newest twin-aisle aircraft meets the airline’s demands as it readies an order that stands to be the biggest in aviation history.

The carrier is still haggling with Boeing over the specifications for the 777X as well as with engine manufacturer General Electric Co. on issues including extra thrust to take off in hot climates, Clark said. The executive said he needs new wide-body aircraft to replace Emirates’ current 777 fleet, which will number 170 jets by the end of this month.