FRANKFURT, GERMANY — Boeing and European civil aviation regulators are slowly moving closer - and hopefully towards a consensus - on the design requirements which will be necessary for the certification of the 777X aircraft. EASA's director, Patrick Ky, said on Tuesday.

EASA has been in discussions with Boeing for around a year now over its proposed changes regarding the flight controls of the American planemaker's latest generation widebody aircraft.

"We are hopefully converging," Ky told the Reuters news agency when asked about the progress of ongoing discussions on the 777X.

The Boeing 777X is the latest iteration of the popular 777 airliner from Boeing. The airplane features new GE9X engines, which offer improved fuel efficiency and lower emissions. The 777X also has a ground-breaking foldable wing design allowing the aircraft to have a longer wing span in the air, increasing the aircraft's overall efficiency.

The 777X has two different models, the 777-9 and the 777-8. The 777-9 is the larger of the two, with seating for up to 426 passengers. It is intended for long-haul flights and has a range of 7,285 nautical miles. The 777-8, on the other hand, is designed for ultra-long-haul flights and can seat up to 384 passengers. It has a range of 8,730 nautical miles.

Boeing has received orders for over 353 777X aircraft from airlines around the world, including Emirates, Lufthansa, and Qatar Airways. The aircraft is expected to enter service in 2025.