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Thread: Nanny systems.

  1. #1
    Senior Member grouch's Avatar
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    Nanny systems.

    I don't always agree with Eric but on one thing we are completely in sync. Nanny Systems. Listening to NPR this morning, they were doing a story on Boeing's 737-Max. Specifically an anti-stall system. Major fleets around the world grounded the planes while the U.S. let them fly for a couple of more days. This was a system that highly trained pilots couldn't handle. cockpit voice recorders showed the crews fighting the plane. The second crash recording indicated the crew turned the anti-stall system off, regained control then followed their training and turned it back on, and crashed.

    Over 300 people died because of a Nanny System that many carriers didn't know was there.
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  2. #2
    Administrator Ken's Avatar
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    Quote Originally Posted by grouch View Post
    I don't always agree with Eric but on one thing we are completely in sync. Nanny Systems. Listening to NPR this morning, they were doing a story on Boeing's 737-Max. Specifically an anti-stall system. Major fleets around the world grounded the planes while the U.S. let them fly for a couple of more days. This was a system that highly trained pilots couldn't handle. cockpit voice recorders showed the crews fighting the plane. The second crash recording indicated the crew turned the anti-stall system off, regained control then followed their training and turned it back on, and crashed.

    Over 300 people died because of a Nanny System that many carriers didn't know was there.
    And, as our dear leader, Eric would say 'It's there for your saaaaaaafety.'

    It is, I guess, quite likely to be a software problem, so will the NTSA jump on
    Boeing the way VW were jumped on for killing no-one with their software?

    Ken.
    Last edited by Ken; 04-13-2019 at 08:06 AM.
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  3. #3
    Senior Member grouch's Avatar
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    Quote Originally Posted by Ken View Post
    And, as our dear leader, Eric would say 'It's there for your saaaaaaafety.'

    It is, I guess, quite likely to be a software problem, so will the NTSA jump on
    Boeing the way VW were jumped on for killing no-one with their software?

    Ken.

    Probably not. The Prez likes Boeing. They contributed to his election.
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  4. #4
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    Quote Originally Posted by Ken View Post

    It is, I guess, quite likely to be a software problem,
    A sensor fault, according to the preliminary report.

  5. #5
    Administrator Ken's Avatar
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    Originally Posted by Dave Brand
    A sensor fault, according to the preliminary report.



    Prelim Report Update;


    'Speaking before the release of the report, Ethiopian Minister of Transport Dagmawit Moges said the plane experienced “repetitive un-commanded aircraft nose-down conditions,” recommending Boeing and aviation regulators review the plane’s anti-stall software, maneuvering characteristic augmentation system, or MCAS,without referring to it by name.'


    It is the software that interprets the input from the sensors. To have only two
    sensors - one on each wingtip -
    does not make sense since it does not give the
    software an odd number of sensor inputs to compare. In this
    case the software
    should have had a rationality factor built in i.e. 'Which is the most logical - a
    15 degree pitch-
    up attitude or a 70 + degree pitch-up attitude at this stage
    of flight'.


    Ken.
    Last edited by Ken; 04-14-2019 at 10:54 AM.

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