Boeing (NYSE:BA) shares fell 1.9% after The Wall Street Journal reported that the planemaker had identified a software issue affecting an automated navigation function on the 737 MAX.
According to the report, the software issue can disable the automated navigation function during a landing following a missed approach.
The issue emerged following an update to the aircraft’s cockpit software.
Issue Can Occur Following Flight Path Changes
According to The Wall Street Journal, the issue can occur when pilots change their planned flight path after conducting a missed approach.
Under certain circumstances, pilots may be required to fly the aircraft manually without some autopilot functions while operating at low altitude, the report said.
The source material did not provide details on how many 737 MAX aircraft may be affected or whether any airlines have experienced the issue during commercial operations.
US Regulators Reviewing Issue
The reported software issue has prompted concerns among aviation industry officials and is being reviewed by U.S. regulators, according to the report.
The source material did not provide further details regarding the scope or timetable of the regulatory review.
Boeing shares declined following the report, with the stock trading 1.9% lower.