SEATTLE/PARIS/ADDIS ABABA - Boeing anti-stall software forced down the nose of a doomed Ethiopian jet even after pilots had turned it off, sources told Reuters on Wednesday, as investigators scrutinize the role played by technology and crew in the fatal March 10 crash.
The so-called MCAS software is at the center of accident probes in both the crash of Ethiopian flight 302 and a Lion Air accident in Indonesia five months earlier that together killed 346 people. The stakes are high. The 737 MAX is Boeing’s top-selling jet with almost 5,000 on order. Ethiopian Airlines is also in the midst of an expansion drive, while other 737 MAX customers and victims’ families want answers, and potentially compensation.
Boeing is upgrading the MCAS software and training while stressing that existing cockpit procedures enable safe flight. Boeing issued guidelines to pilots on how to disable the anti-stall system after the Indonesian crash, reminding pilots to use cut-out switches in the console to shut off the system in the event of problems.
Disabling the system does not shut down MCAS completely but severs an electrical link between the software’s attempts to give orders to push the plane lower and the actual controls, a person familiar with the aircraft system said.
byEricMJohnson Boeing's big AI fail...
byEricMJohnson If we don’t bury Boeing in litigation and fines, I give a year or two before car companies start charging extra for fully functional brakes and steering.
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