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FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

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Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#81

Earlier quoted context omitted.

I think using an LLM to confidently reply to online commenters is more profound, but I digress

Not sure if you just gave up halfway through the 4-sentence long comment, but I was actually suggesting that you use it to go find the thousands of pages of high-quality source information.

Which is a lazy reply.

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#83
post #7

The 737 has had 14 major recertifications. The aircraft today looks/behaves nothing like the original from the 1960s. The main motivation for recertifications comes from commercial pressure where if a aircraft is given a new number and not recertified, then the pilots have to be retrained. Honestly, back when the 737 MAX debacle happened, a lot of consumers claimed that they would stop flying aircrafts if they ran in…

Honestly they kinda screwed over people -- like me -- who tried to avoid the MAX planes for a while. I'd specifically book around the MAX planes and then they would change equipment at the last minute into a MAX. There is no meaningful "knob" an aviation consumer can turn to express an aircraft preference, and given how US airspace works, you often don't have a meaningful choice in carrier (unless you're willing to t…

Sure there is. Just fly carriers that use an Airbus fleet. It’s honestly pretty trivial.

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#84
post #7

The 737 has had 14 major recertifications. The aircraft today looks/behaves nothing like the original from the 1960s. The main motivation for recertifications comes from commercial pressure where if a aircraft is given a new number and not recertified, then the pilots have to be retrained. Honestly, back when the 737 MAX debacle happened, a lot of consumers claimed that they would stop flying aircrafts if they ran in…

In Europe "no 737 MAX" basically means "no Ryanair". Depending on how you feel about Ryanair, avoiding the 737 MAX can be very easy.

In other places, like the US, they may not be practical to avoid.

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#85

Earlier quoted context omitted.

Honestly they kinda screwed over people -- like me -- who tried to avoid the MAX planes for a while. I'd specifically book around the MAX planes and then they would change equipment at the last minute into a MAX. There is no meaningful "knob" an aviation consumer can turn to express an aircraft preference, and given how US airspace works, you often don't have a meaningful choice in carrier (unless you're willing to t…

Sure there is. Just fly carriers that use an Airbus fleet. It’s honestly pretty trivial.

In the US (parent mentioned US specifically) I think that's just Frontier now that Spirit is gone. I mean technically that's doable sure but idk if I would say trivial it's really limited on routes and the experience is terrible from what I understand.

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#86
post #7

The 737 has had 14 major recertifications. The aircraft today looks/behaves nothing like the original from the 1960s. The main motivation for recertifications comes from commercial pressure where if a aircraft is given a new number and not recertified, then the pilots have to be retrained. Honestly, back when the 737 MAX debacle happened, a lot of consumers claimed that they would stop flying aircrafts if they ran in…

Honestly they kinda screwed over people -- like me -- who tried to avoid the MAX planes for a while. I'd specifically book around the MAX planes and then they would change equipment at the last minute into a MAX. There is no meaningful "knob" an aviation consumer can turn to express an aircraft preference, and given how US airspace works, you often don't have a meaningful choice in carrier (unless you're willing to t…

[deleted]

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#87
post #7

The 737 has had 14 major recertifications. The aircraft today looks/behaves nothing like the original from the 1960s. The main motivation for recertifications comes from commercial pressure where if a aircraft is given a new number and not recertified, then the pilots have to be retrained. Honestly, back when the 737 MAX debacle happened, a lot of consumers claimed that they would stop flying aircrafts if they ran in…

> Honestly, back when the 737 MAX debacle happened, a lot of consumers claimed that they would stop flying aircrafts if they ran into 737 MAXs. And I don't think it happened in enough numbers - or even enough to make news. Sales went through the roof, everything kept working. Is this kind of consumer revolt even really possible? If you feel strongly enough that you refuse to fly altogether, then of course you can avo…

In 2013 there were approximately 24,000 737 flights per day[1] - likely more today. If narrowed to just the MAX variants, it's still thousands per day.

Two, albeit high profile, crashes out of all the daily MAX volume is simply not something to worry about - let alone influence your booking choices.

[1] - https://chinaerospace.oss-cn-beijing.aliyuncs.com/18.1%20%E6...

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#88
post #62

Earlier quoted context omitted.

I did, in fact, spend a bit of time trying to look this up, because as pointed out by other comments, it was not entirely clear what relationship this revocation (which is about inspecting built aircraft vs the design) had to do with the crashes (which were primarily the result of a faulty design). I didn't find a particularly illuminating summary other than maybe the investigation also turned up some other problems.…

https://www.oig.dot.gov/sites/default/files/FAA%20Certificat...

I perused that document. It says quite a bit on how the FAA needs to work on type certificates, but seems limited to that. It says nothing on airworthiness certificates. I'm assuming you know this, but the reason people say there's a hard difference on this is because they really are two different topics covering two different things.

For the uninitiated, and simplified. For a particular aircraft you are about to board to be legally allowed to fly it needs an airworthiness certificate. An airworthiness certificate says _that_ particular airplane is essentially _identical_ to a prototype (or set of identical prototypes) that the manufacture has flight tested and demonstrated is safe to the certifying authority. The formal acceptance of the prototypes safety is called a "Type" certificate.

The ability to say "we made this identical to our prototypes" is what the FAA is restoring the authority of Boeing to self certify, and is a _normal_ thing for a manufacturer to have. It's _abnormal_ for a manufacturer to not have that, as it's the certifying authority basically saying "you don't know how to physically construct airplanes".

The document referenced says the FAA essentially accepted proofs / was pressured to accept assertions from Boeing that the type was actually safe, when it was not. That's basically saying Boeing didn't know how to _design_ aircraft.

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#89

Earlier quoted context omitted.

The addition of MCAS to the 737 MAX received type approval by the FAA in response to Boeing's documentation, not in response to anything Boeing approved or issued. No aircraft manufacturer has ever been allowed to issue a type certificate. The self-certification process (airworthiness certificates) is the manufacturer (rather than the regulator's inspectors) stating "this one specific aircraft with serial number ____…

No, an early, low-risk version of MCAS was proposed and given type approval by FAA. Then the MCAS design was changed iteratively and continuously without prompting another type approval process. Thenceforth, Boeing's ODA self-certification process was the only statutorily required step that could have caught that the post-type approval changes actually increased the risk significantly. You should read the OIG report.…

You are still conflating the process of manufacturing vs able to design a safe aircraft. The ability of Boeing to correctly manufacture an aircraft to it's design was not the cause of 737 Max 8 crashes. The ability of Boeing to create a safe design was. (As an aside: I don't think self certification of a design should be a thing)

Re: FAA lets Boeing sign off on 737 MAX, 787 airworthiness certificates again

#90
post #7

The 737 has had 14 major recertifications. The aircraft today looks/behaves nothing like the original from the 1960s. The main motivation for recertifications comes from commercial pressure where if a aircraft is given a new number and not recertified, then the pilots have to be retrained. Honestly, back when the 737 MAX debacle happened, a lot of consumers claimed that they would stop flying aircrafts if they ran in…

In Europe "no 737 MAX" basically means "no Ryanair". Depending on how you feel about Ryanair, avoiding the 737 MAX can be very easy. In other places, like the US, they may not be practical to avoid.

This is what I do. No Ryanair. Everyone else runs A320 series across Europe. I usually just fly easyJet.
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