Boeing's woes continue as software flaw to further delay 737 Max's return

The 737 Max is costing the plane-maker billions of dollars in losses. The software problem was discovered during the final validation review process of the updates being installed on the plane

Boeing Co. has identified a new software flaw in the grounded 737 Max that will require additional work, possibly further delaying the plane’s return to service.

The company alerted the U.S. Federal Aviation Administration and is notifying customers and its suppliers, it said in an emailed statement. Boeing’s best-selling jet was grounded on March 13 after two fatal crashes involving a flight-control system.

The issue involves how software on the plane checks itself to ensure it’s receiving valid data, said a person familiar with the issue who wasn’t authorized to speak publicly about it. It occurs when the system is initially starting