More than eight years after Boeing organized the maiden flight of the 737 MAX 7, US authorities announced Monday that they certified the aircraft. Boeing had originally intended to commence deliveries in 2019 on the 737 MAX 7, which has a maximum of 172 seats. Advertisement AdvertisementAdvertisement AdvertisementBoeing is also close to winning certification for the 737 MAX 10, the largest in the MAX family with a maximum of 230 seats. - Ramping up -With the certifications moving ahead, Boeing expects to ramp up MAX production in the coming period. Ortberg told analysts last week he did not foresee problems with Boeing's supply chain in lifting monthly MAX production to 52 jets.