FAA Delays Boeing 737 MAX 10 Certification

The Federal Aviation Administration (FAA) has delayed certification of the Boeing 737 MAX 10 after Boeing identified a software issue in the aircraft’s flight management computer (FMC). The problem affects software versions 14 and 14.1 and involves loss of automated flight guidance, including vertical navigation (VNAV), in a specific go-around or missed approach scenario.

Boeing 737 MAX 10

The Boeing 737 MAX 10 is the largest variant in the 737 MAX family and belongs to the narrow-body, twin-engine commercial aircraft category. The aircraft is part of the Boeing 737 MAX series, which also includes the MAX 7, MAX 8, and MAX 9 variants.

Flight Management Computer and VNAV

The flight management computer is an avionics system used in modern aircraft for route management, navigation, and performance calculations. Vertical navigation, or VNAV, is an automated flight mode that helps manage climb, cruise, and descent profiles during flight.

The identified software issue can arise when a preprogrammed flight path is altered during a go-around or missed approach. Boeing first became aware of the issue from an operator report in November 2024 and later conducted an internal assessment in February 2025.

Certification Process and Safety Review

The FAA uses certification procedures to verify that an aircraft design meets airworthiness and safety standards before entry into service. The agency plans to convene a Corrective Action Review Board, or CARB, to assess whether the software issue creates a safety-of-flight risk and to determine corrective actions.

Boeing notified 737 operators about the issue in August 2026 and began a formal safety review in September 2026. The FAA has not announced a revised certification timeline for the MAX 10.

Important Facts for Exams

• The FAA is the civil aviation regulator of the United States and oversees aircraft certification and safety compliance.
• The Boeing 737 MAX family is a narrow-body commercial aircraft series powered by two turbofan engines.
• GE Aerospace developed the affected flight management computer software versions 14 and 14.1.
• Corrective Action Review Board is a safety review mechanism used to assess technical issues in aviation certification matters.

Industry Response

Southwest Airlines and United Airlines have stated that they will not accept new aircraft deliveries fitted with the affected software. Boeing shares fell by about 7% on Monday, 28 September 2026, after the certification delay was announced.