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墜落したボーイング737 MAX、オプション扱いの安全機能を搭載していなかった」記事へのコメント

  • https://www.pprune.org/archive/index.php/t-556853.html [pprune.org]

    Jimmy Hoffa Rocks
    19th Feb 2015, 17:50
    Does anyone have more info and supplementary info on this OEB and other incidents. via links?

    It appears that the Lufhansa pilots had previous info on this, good for them.

    ¨When Alpha Prot is activated due to blocked AOA probes, the flight control laws order a continuous nose down pitch rate that, in a worst case scenario, cannot be stopped with backward sidestick inputs, even in the full backward position. If the Mach number increases during a nose down order, the AOA value of the Alpha Prot will continue to decrease. As a result, the flight control laws will continue to order a nose down pitch rate, even if the speed is above minimum selectable speed, known as VLS.¨

    This condition, if not corrected, could result in loss of control of the airplane

    ¨A Lufthansa Airbus A321-200, registration D-AIDP performing flight LH-1829 from Bilbao,SP (Spain) to Munich (Germany) with 109 people on board, was climbing through FL310 out of Bilbao about 15 minutes into the flight at 07:03Z, when the aircraft on autopilot unexpectedly lowered the nose and entered a descent reaching 4000 fpm rate of descent. The flight crew was able to stop the descent at FL270 and continued the flight at FL270, later climbing to FL280, and landed safely in Munich about 110 minutes after the occurrence.¨

    にょろーん。

普通のやつらの下を行け -- バッドノウハウ専門家

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