The Flight Crew Operations Manual (FCOM) bulletin from Boeing reminds operators that the existing procedures are the correct actions to be taken if an aircraft encounters a false stall warning and flight control recovery triggered by a faulty Angle Of Attack signal. The FAA has alerted foreign airworthiness authorities who oversee operators that use the 737 MAX of the agency’s action. The FAA continues to work closely with Boeing, and as a part of the investigative team on the Indonesia Lion Air accident, may take further appropriate actions depending on the results of the investigation. Operators have three days to revise the AFM. The AD orders operators to revise the airplane flight manual (AFM) to give the flight crew horizontal stabilizer trim procedures to follow under certain conditions. These erroneous inputs can potentially make the horizontal stabilizers repeatedly pitch the nose of the airplane downward, making the aircraft difficult to control. “ The FAA has issued an Emergency Airworthiness Directive (AD) that addresses possible erroneous angle of attack (AOA) inputs on Boeing 737 Max aircraft. The Federal Aviation Administration has today issued an Airworthiness Directive for the 737-8 and -9: ![]() Below, we try to bring some clarity and perspective into what is sometimes sensational headlines out of a minimum of facts. We have read the Boeing bulletin, what has been issued from the Indonesian crash investigators and the FAA, and what has been discussed in media. ![]() Source: Wikipedia.īoeing’s 737 AOA sensors and how it affects the aircraft
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