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FAA investigates software glitch in some Boeing 737 Max jets that could cause issues during aborted landings

The Federal Aviation Administration is investigating a software glitch in certain Boeing 737 Max aircraft that can cause an automated flight guidance system to disengage during missed approaches or aborted landings. The defect affects automated vertical navigation functions. Boeing discovered the issue after an operator reported it in November 2024, but initially decided it did not meet its criteria for an immediate safety review. Boeing shared review board findings with the FAA in September 2026, leading to regulatory scrutiny and a delay in the certification of the 737 Max 10 variant while a permanent software fix is developed.

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  • ✓ The FAA is investigating a software glitch in some Boeing 737 Max jets that could cause issues during aborted landings.
  • ✓ The software issue can affect automated vertical navigation functions after a missed approach and prompt an automated flight guidance system to disengage.
  • ✓ Boeing first learned of the glitch from a 737 MAX operator in November 2024.
  • ✓ Boeing shared findings from a review board with the FAA in September 2026.
🛡️ Source Corroboration: 19 independent reporting domains (100% confidence) ⏱ Read time: ~3 min

What changed

The FAA is reviewing a newly disclosed flight computer software defect that disrupts automated vertical navigation during aborted landings and is delaying the 737 Max 10 certification.

Live updates

  1. FAA Investigates Boeing 737 Max Software Glitch

    The Federal Aviation Administration is investigating a software glitch in certain Boeing 737 Max aircraft that can cause an automated flight guidance system to disengage during missed approaches or aborted landings. The defect affects automated vertical navigation functions. Boeing discovered the issue after an operator reported it in November 2024, but initially decided it did not meet its criteria for an immediate safety review. Boeing shared review board findings with the FAA in September 2026, leading to regulatory scrutiny and a delay in the certification of the 737 Max 10 variant while a permanent software fix is developed.

    Why it matters

    Automated navigation systems are vital for safely managing commercial aircraft during high-workload phases of flight, such as aborted landings and missed approaches where quick reconfigurations are necessary. Glitches affecting flight guidance computers draw intense regulatory oversight given past safety concerns involving the 737 Max family. The current review directly impacts timeline expectations for the Max 10 variant as regulators demand thorough software validation before approving the new aircraft.

    What is confirmed

    • The FAA is investigating a software glitch in some Boeing 737 Max jets that could cause issues during aborted landings.
    • The software issue can affect automated vertical navigation functions after a missed approach and prompt an automated flight guidance system to disengage.
    • Boeing first learned of the glitch from a 737 MAX operator in November 2024.
    • Boeing shared findings from a review board with the FAA in September 2026.
    • The FAA administrator stated that the Max 10 certification will be delayed until the agency can assess the software issue.

    What to watch next

    • Completion of the FAA software assessment and safety review
    • Boeing rollout and deployment of a permanent software fix
    • Revised certification timeline for the Boeing 737 Max 10
    Sources used for this update (21)
    1. CNBC — Boeing flags 737 Max software glitch affecting some automated approach functions
    2. Reuters — Boeing flags 737 MAX software glitch affecting landing navigation feature, WSJ reports
    3. Bloomberg.com — Boeing Identifies 737 Max Software Glitch That May Prompt Delays
    4. WSJ — Exclusive | New Boeing 737 MAX Software Glitch Could Disrupt Navigation Feature
    5. CBS News — FAA investigates software glitch in some Boeing 737 Max jets that could cause issues during aborted landings
    6. The Seattle Times — Boeing identifies 737 MAX software glitch
    7. The Air Current — Boeing faces potential 737 Max 10 delay as FAA reviews software issue
    8. KIRO 7 News Seattle — Reports: FAA finds glitch in Boeing software, landing concerns
    9. NBC News — Boeing identifies 737 MAX software glitch affecting landing navigation feature
    10. KWCH — Boeing responds to software glitch that may impact 737 Max planes
    11. Aviation Week — Boeing Tackles 737 MAX Software Glitch With -10 Certification Looming
    12. www.cnbc.com — Boeing flags 737 Max navigation software glitch - CNBC
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