Boeing withheld crucial safety information on new 737 models, experts say

Market Watch

Boeing Co. withheld information about potential hazards associated with a new flight-control feature suspected of playing a role in last month’s fatal Lion Air jet crash, according to safety experts involved in the investigation, as well as midlevel FAA officials and airline pilots.  

The automated stall-prevention system on Boeing 737 MAX 8 and MAX 9 models — intended to help cockpit crews avoid mistakenly raising a plane’s nose dangerously high — under unusual conditions can push it down unexpectedly and so strongly that flight crews can’t pull it back up. Such a scenario, BoeingBA, -0.98%   told airlines in a worldwide safety bulletin roughly a week after the accident, can result in a steep dive or crash — even if pilots are manually flying the jetliner and don’t expect flight-control computers to kick in.

That warning came as a surprise to many pilots who fly the latest models for U.S carriers. Safety experts involved in and tracking the investigation said that at U.S. carriers, neither airline managers nor pilots had been told such a system had been added to the latest 737 variant — and therefore aviators typically weren’t prepared to cope with the possible risks.

“It’s pretty asinine for them to put a system on an airplane and not tell the pilots who are operating the airplane, especially when it deals with flight controls,” said Capt. Mike Michaelis, chairman of the safety committee for the Allied Pilots Association, which represents about 15,000 American Airlines pilots. “Why weren’t they trained on it?”

An expanded version of this report appears on

10 thoughts on “Boeing withheld crucial safety information on new 737 models, experts say

  1. “It’s pretty asinine for them to put a system on an airplane and not tell the pilots who are operating the airplane, especially when it deals with flight controls,” …………… the BUAP that retired lt. Col. Field McConnell had to file suit to get the word out….probably pilots to this day are unaware….

  2. Too much automation, pilots are trained to prevent stalls, they dont need automation to do it for them, plus there are two pilots in front, what the hell do you need automation for??

    Keep the airspeed high, you wont stall, simple as that..if you want fully automated planes, then take the goddamn pilots out, cant have it both ways. Airlines spend a fortune on pilot training, WTF?

    What happens is the pitot tube gets iced up giving the pilots the wrong airspeed indication, why is it iced up? Because the idiots with all the strips on their sleeves forget to turn on the pitot heat to melt the fkg ice, they also forget to turn on the anti ice for the leading edge of the fkg wing, taking away lift, thus plane going down like a fkg rock.

    This is used in planes to measure airspeed:

    “A Pitot tube, also known as Pitot probe, is a flow measurement device used to measure fluid flow velocity. The pitot tube was invented by the French engineer Henri Pitot in the early 18th century and was modified to its modern form in the mid-19th century by French scientist Henry Darcy. Wikipedia”

    These so called pilots come back to the airplane hung over as hell, skipping check list items.

  3. I know this is going to come off like I’m some kind of control freak
    But , there was a reason why I got my PPL and owned my own aircraft

    I have flown commercial, my wife asks me why I’m nervous while flying commercial, .. I told her it’s because I’m not up there where I know what’s going on

    To go and do this to these pilots is criminal
    And if they fken kill me ,I hope my kids end up owning Boeing

    1. I hate flying commercial, pain in the friggen ass, walk for miles to the gate, hours on end bullshit checking in, baggage claim is like torture. 🙂 I make them put me in a golf cart, LMAO, give the guy a fin, worth every penny.

  4. To go further down the rabbit hole including 911….there’s Abel Danger .org
    The many hours of research by Field McConnell about the QRS – 11chip and
    the Boeing uninteruptable auto pilot by researcher Kraig Peterson. In 2006 Boeing paid a hefty fine
    for not letting the US govt. know exactly EVERY tiny part that was installed in it’s line of a certain aircraft…but you are getting the jist of it already.

  5. Hey what does the name Boeing mean to you…?

    When they crAsh .

    They bounce like a basketball.

    Sounding like …..
    Boing. Boing… boing.. .

    Hey.. look out for the twin towers..

    Boing….boing …boing…

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