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I suppose for every situation where a pilot gets confused or panics that results in a serious incident there are dozens(hundreds?) situations that never progres
by Roark66 3y ago
I suppose for every situation where a pilot gets confused or panics that results in a serious incident there are dozens(hundreds?) situations that never progressed far enough, because a pilot calmly prevented it.
Personally I consider autopilots etc, boredom relieving devices not an improvement or even replacement for pilots in future. I feel much safer in a plane a human lands by hand than if a computer program could do it.
Also, the whole "software controlled fly by wire" still makes me uneasy. I feel much better when I know there are actual physical cables that let the pilot move control surfaces. In a huge plane I can understand the necessity of using a hydraulic system which can be made to be extremely reliable, but software?
Perhaps it's because I got to see how software is usually developed?
When a bridge or a building is built you get an architect (depending on country also the civil engineer) sign under his/hers responsibility this thing is not going to collapse and kill people. If it does and negligence is proven that person goes to jail for a long time. There is no equivalent in software.
When responsibility is distributed over countless people you often get unreliable products. Why is it we don't build buildings like this? Probably, because people died in shoddy built buildings, also everyone can see cracks in the walls etc. If a software runs badly it's not so obvious.
Sadly, I think more people will die before this 70+ year discipline will come even close to implementing the safety processes devised by millenia of expertise in fields like civil engineering. So what can a person do to lower the probability of getting hurt? Probably not much. If you have to fly, you usually don't get a choice of a plane (and even if you do it's usually an Airbus vs Boeing). But in other areas of life one has much more control. For example, I'll not drive a car that has a computer I can't disable that can slam the brakes any moment at highway speeds if it detects "something" in front.
- dlkf 3y agoI encourage you to research whether flying has gotten safer or more dangerous since 1970, and then consider why that is.
- FabHK 3y ago> Sadly, I think more people will die before this 70+ year discipline will come even close to implementing the safety processes devised by millenia of expertise in fields like civil engineering. With all due respect, the safety culture and processes in aviation are excellent and exemplary. Software in aviation is a bit more problematic (viz, MCAS in the MAX; though note that in the instances discussed here nobody came to harm, thanks to redundancy and pilots doing their job), but also subject to processes and rules that far exceed one or two people putting a signature to paper.
- michael_vo 3y agoYeah sometimes it’s easy to critique the air industry. But imagine if these same safety reviews were applied to the car industry. So many lives could be saved but we have become numb to car accidents.
- Caligatio 3y agoWell, these problems do publicly rear their ugly head in cars intermittently. Telsa pushes out recall-worthy software updates, Toyota had its infamous stuck accelerator pedal issue in 2009, etc. The airline industry gets such a weird amount of public attention across the board ranging from passenger safety to massive investigations if a plane goes down. It's not necessarily a bad thing but you certainly do not hear federal regulation stopping people from driving a model of car (recalls yes, but nothing akin to grounding) if there's one unexplained crash.
- userbinator 3y agoToyota had its infamous stuck accelerator pedal issue in 2009, etc. AFAIK that was never proven to be a software problem.
- Caligatio 3y agoStrictly true but settling for $1.2B certainly certainly points to there being a problem.
- formerly_proven 3y agoAlmost all (in the mathematical sense) car accidents are caused by pilot error, and not the subtle kind: driving into oncoming traffic. running red lights and other ways of ignoring way of right. drugs. speeding and tailgating. You could envisage technical solutions for some classes of these errors, but they would usually require huge changes to infrastructure or only work for new cars. And full self-driving is still ways off.
- theK 3y agoI think the problem you mention has to do with the fact that software does not apply to one specific domain. It is easy to formulate a framework of engineering rigor for specific domains but this is not easily generalisable to all domains that software is applied to. But thankfully this is where regulators play an important role. Building codes have an explicit statement of how they want a building to work and fail, if you want to build engineering rigor in your team that does civil engineering software, that would be your starting point. For aviation the air authorities do the same. Afaic the us had outsourced that part of regulation to related enterprises for a while and this came up in the 737max aftermath. This is one of the few cases where the US seriously lags behind the rest of the world in my opinion.