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- The Boeing 737 MAX, grounded worldwide in March 2019 following two fatal crashes, has undergone extensive revisions and received recertification from aviation authorities.
- The grounding of the Boeing 737 MAX began on March 13, 2019, after the crash of ethiopian Airlines Flight 302, which followed the crash of Lion Air Flight...
- MCAS was designed to automatically push the nose of the aircraft down if it detected a stall, but it relied on input from a single angle-of-attack sensor.
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The Boeing 737 MAX, grounded worldwide in March 2019 following two fatal crashes, has undergone extensive revisions and received recertification from aviation authorities. As of January 12, 2026, the 737 MAX is operating commercially, though scrutiny and ongoing monitoring continue.
The Boeing 737 MAX Grounding
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The grounding of the Boeing 737 MAX began on March 13, 2019, after the crash of ethiopian Airlines Flight 302, which followed the crash of Lion Air Flight 610 in October 2018. Both crashes were linked to a faulty Maneuvering Characteristics Augmentation System (MCAS).
MCAS was designed to automatically push the nose of the aircraft down if it detected a stall, but it relied on input from a single angle-of-attack sensor. In both crashes, a faulty sensor triggered MCAS, and pilots were unable to regain control of the aircraft. A total of 346 people died in the two crashes.
- Ethiopian Airlines Flight 302: Accident Report
- Lion Air Flight 610: Accident Report
- Maneuvering Characteristics Augmentation System (MCAS): NTSB Preliminary Report
Recertification and Return to Service
The Federal Aviation Governance (FAA) initiated a review of the 737 MAX’s design and software in 2019. The FAA required Boeing to make significant changes to MCAS, including using input from two angle-of-attack sensors, limiting the system’s authority, and providing pilots with more training.
On November 18, 2020, the FAA issued an Airworthiness Directive that cleared the 737 MAX to fly again, but only after Boeing implemented the required software updates and airlines completed the necessary pilot training. The european Union Aviation Safety Agency (EASA) followed suit on January 27, 2021, issuing its own safety directive.
- Federal Aviation Administration (FAA): Official Website
- European Union Aviation Safety Agency (EASA): Official Website
- Airworthiness Directive 2020-24-02: FAA Directive
Current Status (as of January 12, 2026)
As of January 12, 2026, the Boeing 737 MAX is back in commercial service with most major airlines.However, production rates have been affected by ongoing supply chain issues and quality control concerns. In December 2023, the FAA limited Boeing’s production of the 737 MAX after finding discrepancies in inspections.
In January 2024,a door plug blew out on Alaska Airlines Flight 1282,prompting another FAA investigation and a temporary grounding of some 737 MAX 9 aircraft for inspections. the FAA later issued an Airworthiness Directive requiring inspections of all 737 MAX 9s. Boeing has been working to address these issues and improve its quality control processes. As of late 2025 and early 2026, deliveries are increasing, but remain below pre-grounding levels.
- Alaska Airlines Flight