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How Boeing, FAA certified the suspect 737 MAX flight control system

seattletimes.com

111–120 of 195 posts

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#111
Is there a way to figure out where the 737Max is still being flown? I ask selfishly as I have a flight on Norwegian Air Argentina coming up and according to their seat map I appear to be on a 737 Max8, but there is no indication about the actual metal being flown for their flights, as far as I can tell.

Norwegian suspended its use of the 737 Max8 for their main airline, but I haven’t seen anything about their use on their subsidiary airlines.

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#112

Is there a way to figure out where the 737Max is still being flown? I ask selfishly as I have a flight on Norwegian Air Argentina coming up and according to their seat map I appear to be on a 737 Max8, but there is no indication about the actual metal being flown for their flights, as far as I can tell. Norwegian suspended its use of the 737 Max8 for their main airline, but I haven’t seen anything about their use on…

It is grounded worldwide

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#113
post #38

Earlier quoted context omitted.

I've never heard anyone criticizing the size of the FAA or calls for airplane manufacturers to be deregulated. Do you have examples of this? Or are you just making a general politicized point about deregulation? On the other hand I've seen many people complain about "regulatory capture" between FAA + Boeing repeatedly. That's even on the Wikipedia for FAA. > The FAA has been cited as an example of regulatory capture,…

Yes, I have an example. The parent comment was about regulation in general, and mine was in response to that. However, there was the massive deregulation of the FAA in 1978 due to this sort of pressure. It had one effect of creating more competition in the industry, but it arguably went too far and has had an impact on safety as well. [0] [0] https://www.brookings.edu/opinions/perspective-on-airline-sa...

I am not sure if you know what you are talking about. The FAA can’t be “deregulated” as it is the regulatory body. And the airline deregulation that happened in ‘78 was deregulation of airline routes, not airline safety requirements. Furthermore, that 1996 Brookings opinion; that hasn’t held up very well considering that US aviation has an extraordinary safety record since that time and an even better record than during the regulated days. More people are killed by trains every year than die in commercial airliners, but are we suggesting that train regulation is deficient? About 16 people a week are killed by trains in the US, yet with commercial airliners in the US, we’ve had a just single fatality since 2009.

By any measure, the FAA and industry have done an exceptional job of keeping the American flying public safe.

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#114
post #35

Unvetted image comparison of the cockpits 737 MAX 8 Cockpit - https://i2.wp.com/thepointsguy.com/wp-content/uploads/2017/0... 737 800 Cockpit - https://i.imgur.com/eRULoST.jpg I don't really know my way around an airliner but the key displays seem to be quite different and there's a lot fewer knobs on the MAX 8.

I don't know nearly enough to have a respectable opinion on this, but those screens can display different information configured to display different information at the user's choice. Here you have another max 8 with a completely different layout on those screens: http://www.driven-technologies.com/images/bt_portfolio/52/or...

That's a 787, not 737 at all...

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#115
post #92

These crashes are captivating, especially given how astonishingly safe air travel has been in the past decade or so. If I remember correctly 2017 was the safest year in the history of aviation. And airplanes, particularly modern jets, are fascinating no matter what they're doing. I remember twenty, thirty years ago looking out the towering floor-to-ceiling windows at the airport, marveling at how many different techn…

> Accident investigation is a slow process, and slow processes are frustrating. Information comes in a trickle. It's natural to want to piece together whatever details we have, wherever we can find them. In our hunger to find out what happened, how these 346 people lost their lives, let's not lose sight of the fact that the information we have right now is incomplete.

Slow, and possibly corrupted process. If we believe the FAA has been captured by industry, do we trust the outcome of their investigation to be impartial? Do we trust their investigation to be at all competent?

I think it's incredibly important we all remain skeptical of the FAA and Boeing in this; the FAA's reluctance to ground the MAX 8 until it was ordered by the president shows their bias. Any sensible human with a safety-first mindset would have immediately grounded the aircraft after the second crash until a complete investigation was done.

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#116
post #30

>FAA for pushing engineers to 'delegate' reviews of certain components back to Boeing themselves. How much more proof do we need as a society that self regulation is a fool's errand?

How many 737s crashed while under FAA jurisdiction? The US has had one commercial airliner fatality since 2009, so it would seem that the FAA is doing something right. Maybe Kenya and Indonesia need some improvements?

Why is this downvoted? It’s a fact. The FAA doesn’t regulate the training, maintenance or competency of Indonesia or Kenya. Under FAA regulations, the copilot on the Kenya crash would have never been allowed to fly: he had just 200 total hours. So somehow that’s the FAA’s fault?

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#117
post #5

The FAA, citing lack of funding and resources, has over the years delegated increasing authority to Boeing to take on more of the work of certifying the safety of its own airplanes. How does it work in other countries?

Funny, I've never heard the FDA make a statement like that. If it takes longer to certify a new pharmaceutical because of lack of resources, so be it. It needs to take longer.

Instead of applying pressure on the FAA to cut corners, Boeing and Airbus should lobby Congress to increase FAA funding.

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#118
post #65
post #62

Earlier quoted context omitted.

Not true. https://www.seattletimes.com/business/boeing-aerospace/faile... Quote: The discrepancy over this number is magnified by another element in the System Safety Analysis: The limit of the system’s authority to move the tail applies each time MCAS is triggered. And it can be triggered multiple times, as it was on the Lion Air flight. One current FAA safety engineer said that every time the pilots on the Lion Air…

Yes true.[1] You're misunderstanding that quote. It's talking about "authority" in the sense of software's authorization to move the trim tab, not the aerodynamic authority of the tailplane. The 737 has a 60 year old, very conventional elevator with a trim tab. The tab changes the resting angle of the overall elevator, and thus the "center point" of tailplane force on the airframe. Being out of trim means that the ai…

I appreciate your style note, but I think you should really follow your own advice (look at the style of your own comment). If you don't fly the airplane in question for a living, it's perhaps best not to make categorical statements that turn out to be incorrect. As others have pointed out, stabilizer (not elevator) trim on large aircraft works differently from what you might expect from looking at smaller planes. People don't always realize the whole stabilizer can move, because it moves slowly and never on the ground, and you can't see it from the airplane's windows. The stabilizer has a substantial range of motion because it needs to maintain aerodynamic efficiency while offsetting the range of off-center of mass forces at the edges of the flight envelope. Runaway trim on the stabilizer can result in loss of control authority by the pilot.

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#119

Earlier quoted context omitted.

Looking back a hundred or more years when the market was more free, your vision of how things might work does not hold. There were no insurance markets for potential injury due to riding a horse, no private certification of stables that lent horses to ensure animals were fit and free of issues of temperament that might cause them to throw a rider. The free market is not a panacea that solves every problem. It does so…

A horse was also a much less complex animal (literally) than a 737. Using that as a justification for the lack of an insurance market is just wrong...

I don't know about that. We could build 737s 50 years ago, but no one has yet built a horse.

Re: How Boeing, FAA certified the suspect 737 MAX flight control system

#120

Earlier quoted context omitted.

But an inherent bug of government regulation is that it's always vulnerable to lobbying like you cited. So it's still a failure of regulation, except one that is permanent and unsurprising.

>> That is misleading at best. The FAA was instructed to let the industry to regulate itself more, a typical republican/libertarian belief. Boeing being allowed to self regulated created this mess. > But an inherent bug of government regulation is that it's always vulnerable to lobbying like you cited. So it's still a failure of regulation, except one that is permanent and unsurprising. It's a failure of regulation t…

Yes, among other aspects of regulatory capture.
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