Did Boeing inform regulators about the simulator software defects?

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Boeing's Disclosure on 737 MAX Simulator Software Defects Remains Unclear

Boeing has acknowledged making corrections to its 737 MAX flight simulator software following the two fatal crashes that claimed 346 lives. While the company stated it is working closely with regulators on these updates and improvements, the reference content does not specify whether Boeing proactively informed regulatory bodies about the simulator software defects prior to implementing the changes. The adjustments aim to enhance the simulation of force loads on the manual trim wheel, a control for the aircraft's angle.
Corrections Made to Simulator Software

Boeing confirmed that it has made corrections to the 737 MAX simulator software. These changes are intended to ensure that the simulator experience accurately reflects various flight conditions. The company’s statement indicated that these updates were necessary after the two accidents involving the aircraft, which resulted in a significant loss of life.
Limitations of Previous Software

According to Boeing, the previous version of the flight simulator software was not capable of replicating certain flight conditions that were present during the Ethiopian Airlines and Lion Air crashes. These specific conditions are crucial for pilot training, especially in understanding the nuances of aircraft behaviour under duress. The inability to accurately simulate these scenarios highlighted a critical gap in the training tools.
Improvements to Manual Trim Wheel Simulation

The primary technical improvement resulting from these corrections is the enhanced simulation of force loads on the manual trim wheel. This control mechanism is used to adjust the aircraft's pitch. By refining the simulation of the forces associated with this wheel, pilots can receive more realistic feedback during training, better preparing them for manual control inputs.
Collaboration with Manufacturers and Regulators

Boeing stated that it is collaborating closely with both the manufacturers of the simulator devices and regulatory authorities on implementing these changes. This collaborative approach aims to ensure the smooth integration of the updated software and to maintain the continuity of pilot training without disruption. The company is working to provide operators with additional information to support the use of the improved simulator.

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Did Boeing inform regulators about the simulator software defects?

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