Boeing has disclosed a flight-management software issue on some 737 MAX aircraft that can affect automated vertical navigation after a missed approach, prompting the Federal Aviation Administration to open a regulatory review. The problem could complicate the certification path for the still-uncleared 737 MAX 7 and 737 MAX 10, both central to Boeing’s narrowbody programme.
The issue appears in a specific go-around scenario when pilots alter a pre-programmed route, which can cause VNAV to disengage while the autopilot remains available. Boeing has told operators that existing procedures can manage the situation safely, while engineers work on a permanent software update. The FAA is assessing whether the matter presents a safety concern and plans to convene a Corrective Action Review Board.
Several reports indicate Boeing had already informed operators in late August and was originally targeting a fix in early 2028, but is now trying to accelerate that timetable. The review comes as the company continues to seek final approval for the MAX 7 and MAX 10, the two remaining 737 MAX variants still awaiting commercial entry.