201–210 of 307 posts
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Do you mean no two individual planes? Like two 767s made a month apart, do you mean they literally would have different requirements?
Yes. There are constant changes to the design to improve reliability, performance, and fix problems, and the airlines change their requirements constantly.
I don't know about others, but I can't help but smile when I read the detailed series of events in aviation postmortems. To be able to zero in on what turned out to be a single faulty part and then trace the entire provenance and environment that led to that defective part entering service speaks to the robustness of the industry. I say that sincerely since mistakes are going to happen and in my view robustness has l…
It took hundreds of subject experts from ten organizations in seven countries almost three years to reach that conclusion. Here at HN we want a post mortem for a cloud failure in a matter of hours.
They may want a mitigation or RCA in hours, but even AWS gives us NDA restricted PMs in > 24 hours.
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We're making a niche B2B application, and this is very much it for us as well. Our customers are in a cutthroat market with low margins. We can't spend a ton on pre-analysis, redundancies and so on. Instead we've focused reduced the impact of failures. We've made it trivial to switch to an older build in case the new one has an issue. Thus if they hit a bug they can almost always work around it by going to an older b…
You can not. AI though, can be cheap enough to produce that. I wonder what happens if you take a b2b application and let it rewrite with AI to Nuclear Industry/ Aviation standards into a seperate repo. Then on fixes/rewrite the engineers take the "safety aware repository" as inspiration.
I don't know about others, but I can't help but smile when I read the detailed series of events in aviation postmortems. To be able to zero in on what turned out to be a single faulty part and then trace the entire provenance and environment that led to that defective part entering service speaks to the robustness of the industry. I say that sincerely since mistakes are going to happen and in my view robustness has l…
If 200 people died after a db instance crashed, software would be equal in that regard.
The article is complex and well written, but I am a bit perplexed by the victorious tone and never-ending praise of safety. It resembles a sales pitch a bit too much, even though no one is selling anything. Maybe it's unintentional, and being around salesmen just does that to people. If you are like me, you've probably said “hmm…” to yourself multiple times when certain things were mentioned, because those were thing…
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As silly as it might seem, you do something enough times and oddball rare things happen .. this is an instruction intended to reduce: * shoes | boots with sharp objects embedded in soles (glass, bent nails) * extra spikey high heels, * work boots with hard edged metal hooks for laces, (etc) causing damage to both inflatable slipways and to other passengers. How often has a passenger going down an emergancy slide caus…
Also, try to swim/stay afloat with shoes ... Apart from young athletes, most people will drown within a minute
My first job was working at a mro that overhauled engines a bit smaller than the Trent 900s but same principles apply. I built qa software to digitize the forms and signature process like what’s mentioned in the article as having not correctly been signed off on. I ate lunch with repair engineers that had dark wells of knowledge about the engines they worked on. They could talk so deep on a subject that lunch break w…
That would then have produced major failings in the audit, if not the outright revocation of the quality accreditation, which I would then expect to be followed up on by an audit from the customer (which in the case of TFA would be Rolls Royce), asking some rather uncomfortable questions of the management, examining whether the inter-company concession process was being adhered to, and perhaps reflecting internally (i.e. within RR) - "Do we think these folks are the right people to be making these parts for us?"
From what I've read here it seems to me that Rolls Royce were astonishingly lax in not riding their subcontractors nearly hard enough, quality wise.
So did he pass his check flight? ;)
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If 200 people died after a db instance crashed, software would be equal in that regard.
Likewise, in "aviation" when the entertainment system completely fails in a 4 hour flight, there is most like no post mortem at all. They turn it off/on again just like most of us.