Boeing flags slower 737 MAX ramp and 777X test slip

Boeing CEO Kelly Ortberg told Morgan Stanley's Laguna conference on September 16 that stabilizing 737 MAX output at 47 jets a month is taking longer than expected, and that the company will only push toward 52 a month once that rate holds. He said the 737-10, which makes up about 30% of all 737 orders, will be certified very soon, and played down analyst expectations of a large Chinese order when President Trump meets President Xi in Washington next week. Boeing separately said some 777X flight testing will spill into 2027 because FAA clearance to begin extended-range twin-engine operations testing is on hold pending certification of a mid-seal on the GE9X engine, though it still targets first delivery next year; the shares closed down 4.5%.