Boeing may have screwed the Indonesian pooch

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maurvir Outlier
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https://qz.com/1461400/pilots-werent-in ... w-feature/

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On Tuesday (Nov. 13) the Wall Street Journal reported (paywall) that crash investigators, sources at the US Federal Aviation Administration (FAA), pilots at US carriers, and airline regulators are saying the new feature wasn’t adequately publicized, and that pilots weren’t trained on it ahead of the 737 variant being phased into fleets.

According to the Journal, the automated stall-prevention system, which is on the Max 8 and Max 9 models, is supposed to help pilots avoid accidentally raising the nose too high—but under certain rare conditions, the feature can actually push the nose down so sharply that crews can’t redirect the craft.*

In the case of the Lion Air flight, Indonesian regulators first focused on an airspeed indicator and data from a faulty sensor feeding information about the “angle of attack” of the plane’s nose.* Now they are also looking at how pilots were trained to deal with the plane’s reactions to such data, with regulators saying the situation faced by the Lion Air crew last month was not in the aircraft’s flight manual, Reuters reported.


* So, the flight computer was getting faulty AOA and speed data that indicated it was about to stall out, so it buries the nose in the ocean. :squint:
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Boeing may have screwed the Indonesian pooch