Event Brief
Boeing flags 737 Max software glitch affecting approach VNAV
By The BriefBrief · Sources (3)
Filed: Sep 26, 2026 at 5:05 PM ET
UPDATED Sep 27, 2026 at 12:00 AM ET
Summary: Boeing said it identified a software glitch on some 737 Max aircraft that can affect automated vertical navigation functions after a missed approach. The FAA is assessing the issue and will review Boeing’s proposed fix, while Boeing says pilots must take additional steps and engineers are working on a permanent software update.
WHO: Boeing; Federal Aviation Administration (FAA)
WHAT: Boeing flagged a 737 Max software issue that can affect automated vertical navigation after a missed approach, and the FAA is reviewing Boeing’s proposed fix.
WHEN: Sep 26, 2026
WHERE: USA
WHY: Cause not yet established.
How this brief is built: The BriefBrief uses multi-source information fusion to correlate reporting across sources, identify related developments, and continuously update a structured WHO, WHAT, WHEN, WHERE and WHY event picture. Pattern arcs, source analysis, and velocity indicators provide deeper analysis in our MI Console.
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