What the 737 MAX software glitch means for landing guidance and safety

A software issue linked to a cockpit update could interrupt automated landing guidance on some Boeing 737 MAX aircraft. Reports say it may occur after a missed approach—also called a go-around—if pilots change the programmed flight path before trying to land again. The concern is added pilot workload during an approach, not a reported loss of control of the aircraft. 147

When can the software issue occur?

The reported sequence is specific: a crew abandons an approach, changes the planned route, then encounters a problem with automated guidance on the next approach. Coverage describes the affected function as automated navigation or vertical-navigation guidance; some reports say certain autopilot functions may also be unavailable in the scenario. That should not be read as evidence that the entire autopilot necessarily disengages. 1414

The reporting links the issue to a cockpit software update. It does not provide enough detail to establish exactly which aircraft or software configurations are affected across the fleet. 17

What could it mean for pilots?

If automated guidance is unavailable, pilots may have to manage the approach with less assistance. Because the scenario can arise during a landing sequence, that could increase workload at a demanding stage of flight. Boeing has said pilots are trained to land without the automated system, and has reinforced existing procedures while it works with airlines on guidance for handling the condition. 27

The reports cited here do not establish that the issue caused an accident. Boeing told operators it did not consider the condition a safety risk, while the FAA says it is assessing the issue and will take immediate action if it identifies a safety concern. Those are different positions: the regulator’s review is still important to the safety assessment. 722

What is known about Boeing’s and the FAA’s response?

The available reports do not clearly establish when Boeing first identified the issue. Reuters reported on September 26, 2026, that Boeing said it had informed all 737 operators the previous month—August 2026. The sources available here also do not specify a firm date when a formal FAA review began. The FAA said it was assessing the problem and would convene a Corrective Action Review Board. 127

For now, Boeing is reinforcing existing pilot procedures, including procedures for re-engaging automated vertical navigation. Engineers are working on a software update intended to address the issue permanently, which the FAA says it will review. No completed fix is established in the available reporting. 27

Southwest and United have asked Boeing not to deliver new MAX aircraft with the affected software, and have sought an earlier software version instead, according to reporting citing industry sources. 548

Could deliveries or MAX certification be affected?

The FAA review could affect the timing of deliveries or the MAX 10’s certification, but the reports describe a potential delay, not a confirmed one. 2

The MAX 7 is a separate case: the FAA certified it on August 3, 2026. The newly reported issue therefore cannot be described as delaying its initial certification. The sources provided do not establish what, if any, follow-up changes could apply to that variant. 41

Why the MAX’s safety history matters—and what it does not prove

The 737 MAX has faced earlier safety controversies, including the MCAS flight-control system and a separate FAA grounding of 737-9 MAX aircraft in January 2024. Those events help explain why new safety issues draw close attention, but the current reports describe a navigation-guidance software issue; they do not establish a connection to MCAS or to the earlier grounding. 333942

The key points are narrower: the reported condition has a specific missed-approach trigger, Boeing has issued interim procedural guidance and is developing a software update, and the FAA’s assessment is ongoing. Until that review and the fix are complete, the possible effects on deliveries and the MAX 10 remain uncertain. 27