Boeing’s much-vaunted 787 Dreamliner was hit with another delay last week, launch customer All Nippon Airways said in Japan.

The airline has so far received just two of the mid-sized, lightweight aircraft since September, three years after the first plane was originally scheduled for delivery.

ANA had hoped it would get a third plane this month to use on one of its Tokyo to Beijing routes, but has been forced to reschedule after Boeing said the plane would not arrive on time due to production delays.

“It is extremely regrettable, but we have decided to change plans,” ANA said in a statement. “We will do our best to ask Boeing to arrange an early reception of the aircraft.”

ANA ultimately expects to receive 55 Dreamliners, which have been lauded as the future of aviation for their use of lightweight, fuel-saving materials.

The 787 made its first commercial flight on October 26 after a string of technical mishaps and delays that have cost US-based Boeing billions of dollars in lost or cancelled orders and seen it give ground to fierce rival Airbus.