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Pilot of Boeing flight says he lost control after instrument failure

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Re: Pilot of Boeing flight says he lost control after instrument failure

#51

A blip of zero controls - not ideal! Although hearsay from a passenger hardly sounds reliable. The thing I'm wondering is: are quality issues happening elsewhere? Or are we caught in an anti-Boeing hype cycle? I'm skeptical whenever the media really grabs hold of a narrative that's so one-sided.

Carry that skepticism forward when reading anti-Israel headlines.

Re: Pilot of Boeing flight says he lost control after instrument failure

#52
post #27

Earlier quoted context omitted.

I would lean towards an anti-Boeing hype cycle with some confluence of a series of unfortunate events. This is not to say that the QA issues aren't leading to something catastrophic, but on the whole I don't think people quite comprehend the number of flights that take off and land in a day, and how few fatalities and injuries result as of these trips relative to the passenger load.

The problem isn't that "accidents happen", the problem is that airplane safety culture isn't meeting people's expectations anymore. Two planes crashing for the exact same preventable reason mere months apart just does not compute. A single crash would've been quickly forgotten. But two crashes and a long chain of incidents all while the planes were allowed to stay in the air is going to change people's perceptions. T…

Totally agree, but the truth is that it is hard to say that the public has lost trust in Boeing when more people than ever are in the air. The peanut gallery is on to something, and Boeing is losing orders, but it doesn't seem to be enough to actually change anything.

Re: Pilot of Boeing flight says he lost control after instrument failure

#54

Reminds me of the time my brand new F-250 "crashed" and rebooted. Lost all functionality for almost a minute, completely dropped dead on the road. It rebooted and continued on. Happened one time in five years and ~50k miles.

I had a Chrysler Pacifica go into limp mode several times due to issues in a CAN bus connector sending bad ECM data. It was very intermittent so service couldn't do anything. Eventually someone in an owner's forum figured it out so I was able to swap out the $5 connector.

Re: Pilot of Boeing flight says he lost control after instrument failure

#55
post #29

Earlier quoted context omitted.

[flagged]

I don't this this allegedly happened. What authorities are saying Boeing killed a whistleblower?

The whistleblower was found dead in their car of an 'apparently self-inflicted gunshot wound'.

Seems extremely unlikely that they would decide to kill themselves after 32 years at Boeing and deciding to blow the whistle.

"Barnett, who spent decades working for Boeing at its plants in Everett, Wash., and North Charleston, S.C., had repeatedly alleged that Boeing's manufacturing practices had declined — and that rather than improve them, he added, managers had pressured workers not to document potential defects and problems. "

Re: Pilot of Boeing flight says he lost control after instrument failure

#56

Earlier quoted context omitted.

>Newton's First Law says that an object in motion stays in motion. How is this relevant? There is turbulence and gravity, this isn't "empty" space. > Losing instruments for a second doesn't cause a change in momentum No, but modern jets need computer-aided control of flight control surfaces to keep the aircraft stable. If the account is accurate sounds like quite literally everything had a blip for a second, which wo…

Nitpicking. I agree with your broader point. > No, but modern jets need computer-aided control of flight control surfaces to keep the aircraft stable. Most aircraft outside of fighter jets are aerodynamically stable. Loss of powered flight would mean the airplane will glide (in nominal operation). Even the 737MAX7/9 aircraft are still stable (although that brings up defining exactly what we mean by aerodynamically st…

>Most aircraft outside of fighter jets are aerodynamically stable.

Sure, but there is significant overlap between being stable and throwing around passengers, unfortunately.

Dropping 500 feet is perfectly okay for the aircraft and it will largely continue to not simply fall out of the sky past that.

Re: Pilot of Boeing flight says he lost control after instrument failure

#57
post #4

A blip of zero controls - not ideal! Although hearsay from a passenger hardly sounds reliable. The thing I'm wondering is: are quality issues happening elsewhere? Or are we caught in an anti-Boeing hype cycle? I'm skeptical whenever the media really grabs hold of a narrative that's so one-sided.

Yea I have the same question. Objectively it appears that Boeing is having some really serious safety issues. Things that absolutely do not jive with what we’ve been taught our entire lives about how safe airline travel is. But I’m open to the idea that 5-10 “major” incidents a year is maybe within the normal range and we just don’t ever hear about them.

appears to be the newer manufactured aircraft (737 Max series and 787's) that are having these issues... the 777 has one of the best safety records for airliners out there for example

Re: Pilot of Boeing flight says he lost control after instrument failure

#58

Earlier quoted context omitted.

>Newton's First Law says that an object in motion stays in motion. How is this relevant? There is turbulence and gravity, this isn't "empty" space. > Losing instruments for a second doesn't cause a change in momentum No, but modern jets need computer-aided control of flight control surfaces to keep the aircraft stable. If the account is accurate sounds like quite literally everything had a blip for a second, which wo…

modern jets need computer-aided control of flight control surfaces to keep the aircraft stable Small nitpick, commercial jets are designed to be aerodynamically stable. If controls froze briefly, the plane would continue to be stable, flying as it was when the controls froze. You'd need to add in the turbulence or some external force for it to be a problem. That said, the 787 is 100% dependent on electronic controls,…

>You'd need to add in the turbulence or some external force for it to be a problem.

Which is what I said :). The computer controlled flight control surfaces aren't just keeping the aircraft aerodynamically stable, they're keeping it comfortable/safe which is what "stable" means in this context (since it's a passenger jet).

Dropping 500 feet is nothing for the aircraft. That's a different story for the passengers.

Re: Pilot of Boeing flight says he lost control after instrument failure

#59
post #29
post #4

Earlier quoted context omitted.

Yea I have the same question. Objectively it appears that Boeing is having some really serious safety issues. Things that absolutely do not jive with what we’ve been taught our entire lives about how safe airline travel is. But I’m open to the idea that 5-10 “major” incidents a year is maybe within the normal range and we just don’t ever hear about them.

[flagged]

> using parts from scrap bins

This is a good micro-example. Scrap bins! Sounds horrible! But is it? Do you know? Or is it just common practice? Is it called a scrap bin in the media to drive a narrative, when really it's just a parts bin like any other?

We don't know.

Re: Pilot of Boeing flight says he lost control after instrument failure

#60
Real time operating systems are expensive to develop for and require laborious system validation. That's why we decided to use a custom version of Android Jelly Bean running on the latest MediaTek quad core processors featuring Arm Mali gpus. Sensor communications are handled wirelessly with BlueTooth. Be sure to turn off all electronic devices before the flight. :)
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