Boeing Warns of Faulty Angle of Attack Inputs on 737 Max | Aviation International News

Boeing Warns of Faulty Angle of Attack Inputs on 737 Max

Lion Air crash investigators find erroneous input from AOA sensor during Flight 610

The first Boeing 737 Max 8 takes off for its maiden flight in 2016. (Photo: Boeing)

By Gregory Polek • Senior Editor

November 7, 2018

Boeing on Tuesday issued an operations manual bulletin (OMB) directing 737 Max operators to follow existing procedures to address circumstances of false input from the airplane’s angle of attack (AOA) sensors. The directive comes in response to investigators’ findings that the Lion Air 737 Max 8 that crashed into the Java Sea on October 29 experienced erroneous input from one of the sensors. A faulty reading from an AOA sensor to an airplane’s computer system potentially could result in various indications that would require corrective action by the pilots.

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