As of early 2026, the Boeing 737 is not banned; the vast majority of the fleet, including the 737 Next Generation (NG) and the previously grounded 737 MAX 8 and 9 models, are in full commercial service worldwide. The "ban" or "grounding" often referred to was the 20-month global suspension of the 737 MAX following two tragic accidents in 2018 and 2019. Those issues, primarily linked to the MCAS flight control software, were resolved with extensive hardware and software updates and new pilot training requirements. Currently, in 2026, the only "restrictions" involve the ongoing certification of the two remaining variants: the smaller MAX 7 and the largest MAX 10. These models have faced delays due to the FAA's requirement for Boeing to redesign the engine anti-ice system and cockpit alerting logic to meet higher safety standards. Boeing expects these final variants to be certified by late 2026, with deliveries to major airlines like Ryanair and Southwest following shortly after. While the program remains under intense regulatory oversight, the 737 continues to be one of the most widely used and reliable narrow-body aircraft in the global aviation industry.