The software fix for Boeing's 737 Max may end up costing the aircraft manufacturer billions of dollars as it redesigns a computerised flight-control system.
Because the Max, with its bigger engines, was more prone to a stall, Boeing devised MCAS as an additional safety measure. If it sensed a stall in those limited conditions, it didn't wait for the pilots to act. It commanded the so-called trim system to push down the nose.
The system also won't act repeatedly if pilots overcome it, according to the company. The Indonesian pilots counteracted MCAS at least two dozen times before the crash. And the revised MCAS won't make such aggressive nose-down movements, according to the company. "We don't have an initial objection to the fixes, and they look OK to us," said Jon Weaks, president of the Southwest Airlines Pilots Association.
"Boeing has the expertise and FAA has the expertise and they will come up with an improvement to the airplane and get it back in the air," Cox said.
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