CHICAGO – Boeing Co. knew months before a deadly 737 Max crash that a cockpit alert wasn’t working the way the company had represented to buyers of the jetliner.
But the planemaker didn’t tell airlines or the Federal Aviation Administration of the problem with the warning light until after a Lion Air plane went down off the coast of Indonesia in October, according to a Boeing statement Sunday. The accident occurred after an erroneous reading by a single angle-of-attack sensor triggered software that pushed the jet’s nose down until pilots lost control.
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