The certification of Boeing’s 777X, a large twin-engine passenger jet, may be delayed due to ongoing labor negotiations. Originally planned for service in 2020, the project has already faced several setbacks, including the impact of the COVID-19 pandemic and internal quality control issues. In September 2025, Boeing confirmed further delays in the certification process. Earlier expectations for the first deliveries in early 2027 may now be at risk due to the unresolved labor situation. Around 17,000 engineers and specialized technicians are preparing to vote on a new contract with Boeing. If the proposed agreement is rejected, a strike could begin once their current contract expires on October 6th. This could significantly slow down or even halt the certification process. The workers involved are critical to the certification work with the Federal Aviation Administration (FAA), the U.S. aviation safety regulator. Without their involvement, the FAA cannot complete the certification process. Boeing’s management believes its latest offer will be accepted, as it has been endorsed by the main union representing the engineers. However, uncertainty remains. According to Boeing’s CEO, Kelly Ortberg, a strike would essentially stop the 777X certification program until the workers return to work. There are currently 560 confirmed orders for the 777-9 variant of the aircraft, including 235 for Emirates and 90 for Qatar Airways. Delays in certification could disrupt production and delivery schedules for these airlines, which are in need of new aircraft. At the same time, such delays may benefit Boeing’s main competitor, Airbus, which is currently delivering its A350 wide-body jet. Despite its own production challenges, Airbus is successfully meeting airline demand with its aircraft.