Boeing delayed fix of defective 737 MAX warning light for three years: U.S. lawmakers
Boeing decided in November 2017 to defer a software update to correct the so-called AOA Disagree alert defect until 2020, three years after discovering the flaw
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June 9, 2019 - by Eric M. Johnson for reuters.com
Boeing Co learned that a cockpit warning light on its 737 MAX jetliner was defective in 2017 but decided to defer fixing it until 2020, U.S. lawmakers said on Friday.
The defective warning light alerts pilots when two sensors that measure the angle between the airflow and the wing disagree. Faulty "angle of attack" data is suspected of playing a role in two deadly crashes involving Boeing's best-selling 737 MAX in Indonesia in October and in Ethiopia in March.