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

Key Points:

• The FAA is investigating a software glitch in Boeing 737 Max jets that can cause the vertical navigation system (VNAV) to disengage during an aborted landing (go-around), requiring pilots to manually manage the approach under high workload conditions.
• The issue affects flight management computer versions 14 and 14.1 and was first reported to Boeing in November 2024; Boeing initially deemed it not a safety risk but launched a formal safety review after receiving additional operator data.
• Boeing has informed operators and is working on a software update to fix the problem, though the FAA's ongoing review could delay certification and deliveries of the 737 Max 10 and Max 7 variants, impacting airlines like Southwest and Alaska.
• Airlines such as Southwest and United have declined new aircraft with the affected software versions, opting for earlier versions, while current in-service fleets reportedly do not use the problematic software.
• The glitch adds to ongoing challenges for Boeing's 737 Max program, which has faced previous safety issues and delays, prompting airlines to adopt a cautious approach toward new deliveries.