Boeing's 737 MAX Glitch Threatens Automated Navigation

Boeing has identified a software glitch on its 737 MAX that can disable an automated navigation function during landing after a missed approach. The issue emerged after a cockpit software update and can occur when pilots change their planned flight path following a missed approach.

In certain circumstances, crews may have to fly manually without some autopilot functions at low altitude, according to the Wall Street Journal report. Boeing notified 737 MAX operators of the issue in late August, saying it did not pose a safety risk.

The company is developing a software fix and a procedure to allow pilots to restore the automated navigation function if necessary. Southwest Airlines and United Airlines have asked Boeing not to deliver new 737 MAX aircraft with the affected software and instead use an earlier version, industry officials told the WSJ.