FAA considered grounding some Boeing 737 Max planes last year: source

US regulators considered grounding some Boeing 737 MAX planes last year after learning belatedly of a problem with a system that is now the main suspect in two deadly crashes, a source close to the matter said.Investigators in the Lion Air crash in October and the Ethiopia Airlines disaster in March have zeroed in on the planes' anti-stall system, the Maneuvering Characteristics Augmentation System, or MCAS.Last year, before the Lion crash, inspectors with the Federal Aviation Administration dis