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Thread: Asiana 777 crashes short of San Fransico Airport.

  1. #17
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    Re: Asiana 777 crashes short of San Fransico Airport.

    having watched the video after my first post , yes he didn't stall - a flare at too low and slow - the report says 103knots? - vref is around 136 for the type on crossing the threshold so he`s 20+ below that.

    as for a go around the gear is raised after you start your climb out , clean up - so they could have but - someone realised too late they were too slow with a high sink rate.


    edit:

    isn't the phrase` controlled descent into the ground`

  2. #18
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    Re: Asiana 777 crashes short of San Fransico Airport.

    yeah, that is why I say it wasn't a TOGA. You can't do it in time. If your still sinking when you're in ground effect, you're landing. You might make a touch and go, but you will land.

    This means taking up the landing gear would have been a bad idea, it takes time to come up, and is the only part of the plane strong enough to land on. Landing on water? Undercarriage down! So you can't clean that. His flaps, if he had removed 10° he would have sunk too much as the chord changed.

    He had no options of a go around. He lost that when he didn't realise his mistake at 400ft. (about 40 seconds after he legally should have TOGA'd).
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    Re: Asiana 777 crashes short of San Fransico Airport.

    its flaps 30 on a trip 7 - BA do flaps 25 but only for quiet approach (faster and longer) - he could have pressed the TOGA button (and I think he did) - but as you said far too late (you only clean when I positive climb)

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    Re: Asiana 777 crashes short of San Fransico Airport.

    The point is that he didn't stick to a missed approach altitude.

    The Delta 777 book states it should have been entered in to the MCP (http://www.deltava.org/library/B777%20Manual.pdf page 16). Now he wasn't using autopilot at all apparently (as the auto throttle should have kept speed nicely for him) but still the mode control panel is useful as it gives you ground warnings and the like. The question of why he didn't call it at 1,000ft AAL is still the issue for me.

    Hopefully tomorrows one will have some answers to that.
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    Re: Asiana 777 crashes short of San Fransico Airport.

    http://www.flightglobal.com/news/art...so-far-388082/

    She also confirmed that one of the crew voiced concern about the low airspeed 7s before the first impact. About 4s before impact the stickshaker stall warning activated noisily, and one of the crew called for a go-around 1.5s before impact

    watch the video - tbh I think he`s spot on


    edit:


    you know whats lucky in all of this? the united 747 saying `no` to lining up for take off - they needed a short wait instead - otherwise it would have been sitting where the 777 came down oO
    Last edited by HalloweenJack; 09-07-2013 at 08:42 PM.

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    Re: Asiana 777 crashes short of San Fransico Airport.

    Interesting set of opinions (now redacted on original PPRUNE forum)

    https://news.ycombinator.com/item?id=6024383
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    Re: Asiana 777 crashes short of San Fransico Airport.

    since pprune got sued for forum posters comments about Ethiad and Ryan Air - they move quickly to delete comments now

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    Re: Asiana 777 crashes short of San Fransico Airport.

    The names of the pilots have been released....

    http://www.youtube.com/watch?v=WIOiVHnM9Jc
    Last edited by dave87; 15-07-2013 at 08:49 PM. Reason: updated youtube link

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    Re: Asiana 777 crashes short of San Fransico Airport.

    erroneously i read...

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    Re: Asiana 777 crashes short of San Fransico Airport.

    Quote Originally Posted by dave87 View Post
    the names of the pilots have been released....

    http://youtu.be/c76t9_fthh0
    rofl :d
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