FAA probes Boeing 737 Max software glitch that may affect aborted landings
The Federal Aviation Administration (FAA) is currently investigating a software anomaly affecting some Boeing 737 Max jets. This issue, which may cause the automated flight guidance system to disengage during an aborted landing maneuver—commonly referred to as a go-around—has raised concerns within the aviation industry.
The glitch is reportedly linked to the flight management computer, particularly in specific scenarios involving missed approaches. When a pilot utilizes a precision approach with the autopilot engaged and modifies their predetermined flight plan, a malfunction in the vertical navigation system (VNAV) could occur. This malfunction would lead to a transition from a sophisticated level of automated flight control to a more basic form, potentially complicating the landing process.
Under normal circumstances, the VNAV system is designed to uphold pre-established altitudes at various waypoints. However, should this system disengage, pilots would need to implement additional procedures during their approach, notably at airports where the workload can be particularly high.
Boeing has communicated to its operators about the software issue, asserting that it does not pose an immediate safety threat. The company’s spokesman emphasized that even with VNAV disengaged, the autopilot will remain operational and that pilots are adequately trained to manage landings without VNAV assistance. In light of the situation, Boeing is actively working on a software update intended to rectify the identified problems.
The FAA has acknowledged the potential software issue and is collaborating closely with Boeing and various airline operators. A Corrective Action Review Board (CARB) has been convened to monitor the situation and will take prompt action if safety concerns are detected.
Several airlines, including Southwest and United, have indicated they will not accept deliveries of new aircraft equipped with the implicated software version, opting instead for earlier versions. Other carriers such as Alaska Airlines and American Airlines have confirmed that their in-service fleets do not incorporate the problematic software.
Boeing first became aware of the glitch in November 2024 and initially deemed it non-threatening by February 2025. However, further information from operators led to the establishment of a formal safety review, the findings of which have now been submitted to the FAA for verification.
The manifest issue could also impede the certification process for the Boeing 737 Max 10, as it was nearing FAA certification when these concerns arose. The Max series is crucial to Boeing’s financial recovery, particularly in light of past incidents involving software-related crashes that resulted in significant loss of life. The escalating scrutiny from airlines, influenced by previous delays and groundings related to the 737 Max, indicates a cautious approach to future deliveries and assurances from the manufacturer.
As discussions and investigations continue, the aviation sector remains vigilant, prioritizing safety while navigating the complexities intrinsic to advancements in aircraft technology.
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