Boeing is reportedly designing a new single-aisle aircraft that could eventually replace its 737 Max line, according to insiders. The 737 Max has had a rocky history. 🚨 Boeing is reportedly planning a brand-new single-aisle jet to succeed the 737 MAX — a long-term move to win back ground lost to Airbus. pic.twitter.com/Gj3VugfcZH — Turbine Traveller (@Turbinetraveler) September 30, 2025FAA Restores Limited 737 Max Certification to BoeingThe FAA then limited the company's ability to certify new 737 Max aircraft. If successful, it could help the company win back customers lost to Airbus and restore confidence in its engineering.