Boeing 737 Certification Delayed by Software Glitch
A software glitch on Boeing's 737 flight systems has delayed FAA certification for two 737 models, according to reports by the Wall Street Journal. The issue was discovered two years ago and affects the flight management computer operating system after a missed approach when a flight crew alters the planned flight path.
The glitch potentially disables automated vertical navigation (VNAV) features, but Boeing and the FAA stated that standard pilot training covers safe landings without VNAV, and autopilot remains functional even if VNAV disengages. Boeing engineers are currently developing a software update to the version 14 and 14.1 flight management OS.
The certification delay is described by industry analysts as 'something like tripping in front of the finish line.' Boeing had indicated that 737 Max certification was imminent, but now faces a delay due to the software issue. The FAA will convene a Corrective Action Review Board to take immediate action if it identifies a safety concern.