US considered grounding some Boeing 737 Max planes last year: Source

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Published: April 28, 2019 11:08:23 PM

Last year, inspectors with the Federal Aviation Administration discovered that the manufacturer had de-activated a signal designed to advise the cockpit crew of a malfunctioning of the MCAS system, the source said.

Boeing, Boeing 737 Max, Ethiopia Airlines, plane crash, MCAS system, industry newsThese inspectors were in charge of monitoring Southwest Airlines, the biggest user of 737 MAX planes, with a fleet of 34 of them at the time, said the source. (Reuters)

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 Sunday. Investigators probing the Lion Air crash in October and the Ethiopia Airlines disaster in March have zeroed in on the planes’ anti-stall system, called the Maneuvering Characteristics Augmentation System, or MCAS.

Last year, inspectors with the Federal Aviation Administration discovered that the manufacturer had de-activated a signal designed to advise the cockpit crew of a malfunctioning of the MCAS system, the source said. These inspectors were in charge of monitoring Southwest Airlines, the biggest user of 737 MAX planes, with a fleet of 34 of them at the time, said the source.

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