Boeing's Software Snag: Airlines Ground New MAX Jets Amid Navigation Issue

Boeing's latest software issue has led to Southwest and United Airlines requesting that new 737 MAX aircraft be delivered with an earlier version of the system. The malfunction in question affects an automated navigation function, which may not operate correctly under certain conditions, potentially leaving pilots without some autopilot capabilities.

The issue can occur after a crew aborts a landing and changes the planned flight path. In such situations, pilots may need to continue flying without autopilot assistance until they restore the system or switch to manual procedures.

Boeing notified 737 MAX operators about the issue at the end of August, stating that it did not consider the flaw a safety threat. However, the company later began an official safety analysis and submitted its findings to the U.S. Federal Aviation Administration (FAA). The FAA is conducting its own investigation.

The affected software was developed by GE Aerospace, which is working with Boeing to resolve the issue. Boeing has informed carriers that they can revert to the previous software version if needed.