Boeing's Software Issues Cause Concern Among U.S. Airlines

U.S. airlines have been hesitant to adopt Boeing's latest software versions for its 737 Max aircraft due to concerns over glitches and anomalies in the flight management system.

The Federal Aviation Administration (FAA) conducted a safety review of a bug that can arise during missed landing approaches, which created uncertainty around the certification of the Boeing 737 Max 10 and the first delivery of the Max 7.

U.S. airlines have long been aware of other anomalies plaguing the fourth major software update of the 737's flight management system since its introduction in 1997, developed by GE Aerospace. These issues include loss of capabilities to crew distractions during critical phases of flight.

Airlines like United and Southwest have asked Boeing to deliver 737 Max aircraft with an older standard computer, known as C1, to be able to roll back their flight management system software to U13.