Boeing discovers software flaw in 737 MAX that may disable automated landing navigation
Boeing has identified a software issue in the 737 MAX that can prevent an automated navigation function during certain landing scenarios, prompting a forthcoming software fix and regulatory review.
Boeing said it has found a software defect in the 737 MAX that can cause the aircraft’s automated flight-guidance system to become unavailable during a specific landing situation. The problem can arise after a missed approach when pilots modify the flight plan, according to company documents cited by a news report.
The manufacturer informed all operators of the 737 MAX about the issue last month and advised crews to follow existing procedures for handling the condition. Boeing added that engineers are developing a software update to permanently resolve the flaw.
"We shared information with operators that reinforced existing pilot procedures for safely handling such cases. Our engineers are working on a software update to permanently address the issue," Boeing said in an emailed statement.
The Federal Aviation Administration confirmed it is aware of the potential problem and is working with Boeing and airlines. The agency said it will convene a Corrective Action Review Board and will act promptly if a safety concern is identified.
"The FAA will convene a Corrective Action Review Board and will take immediate action if it identifies a safety concern," the FAA stated.
Southwest Airlines and United Airlines have requested that Boeing postpone delivery of new 737 MAX jets equipped with the affected software, preferring an earlier version. The number of aircraft currently operating with the flawed code has not been disclosed, and regulators are evaluating whether the issue poses a flight-safety risk.