What specific flight conditions were missing from 737 MAX simulators?

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Boeing Corrected 737 MAX Simulator Software to Reflect Actual Flight Conditions

Boeing has updated its 737 MAX flight simulator software to accurately replicate certain flight conditions relevant to the aircraft's operation. These adjustments were made to address an inability of the previous software to reproduce scenarios similar to those encountered during the fatal Ethiopian Airlines and Lion Air crashes. The company has also provided updated information to simulator operators to ensure a more representative training experience.
Inability to Simulate Crash-Related Conditions

The 737 MAX flight simulator software, prior to Boeing's corrections, was unable to reproduce specific flight conditions that mirrored circumstances present during the Ethiopian Airlines crash in March and the Lion Air crash in October. The exact nature of these "certain flight conditions" was not detailed, but their omission meant that pilots may not have been adequately prepared for such events in training. This deficiency in the simulator's capability was a direct consequence of flaws within the software itself.
Enhancements to Manual Trim Wheel Simulation

The modifications to the simulator software specifically aim to improve the simulation of force loads experienced on the manual trim wheel. This rarely used manual control is employed to adjust the aircraft's angle. The previous software's inability to accurately simulate the forces associated with its operation meant that a critical aspect of manual flight control might not have been effectively conveyed to pilots during their training.
Collaboration with Manufacturers and Regulators

Boeing has been working collaboratively with both device manufacturers and regulatory bodies on these software changes and improvements. The company has stated its commitment to ensuring that these updates do not disrupt customer training schedules. This cooperative approach underscores the importance of accurate simulation in pilot proficiency and safety, especially following the grounding of the 737 MAX fleet worldwide.

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What specific flight conditions were missing from 737 MAX simulators?

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