The agency has already postponed certification of the 737 MAX 10 to study the bug, which can cause automated navigation systems to fail during missed-approach scenarios. Following the delay, Boeing shares fell 7% to their lowest level since November 2025. While the manufacturer develops a fix, United and Southwest Airlines have reportedly requested earlier software versions for their jets to avoid the defect, though the FAA administrator stated that flight crews maintain control during go-arounds.
