Boeing says 777-9 testing could extend into 2027 over GE9X issue
ETOPS campaign has yet to begin while Boeing has already adjusted 777X production and delivery schedules
Airbus
Seventh Boeing 777-9 joins flight-test campaign
Aircraft set for ETOPS and function-and-reliability testing ahead of planned 2027 deliveries
Airbus A330neo is certified for long-haul transoceanic flights
European Agency EASA has approved the twin engine for ETOPS of up to 285 minutes, which allows the aircraft to fly 2,000 nm more