@saxnot @nixCraft the 737 MAX was Boeing's hail mary to compete with Airbus. Instead of redesigning the fuselage which would cost a lot of money and time, they just put oversized jet engines on the plane which messed up its balance and they tried to fix it with software called MCAS that the pilots weren't even trained on properly. This has caused crashes and killed people.

This is simply one of many sins.

Since then there have been numerous groundings of the planes for various issues, not including the most recent "plug door blew out mid-flight" issue that an Alaskan Airlines flight suffered recently. It turns out there may not have been any bolts secure it at all. They've been investigating others and finding insufficently secured or missing bolts. Also the guy who received the gift of the plug door in the tree of his front yard noted the serial number for the door was written in sharpie. This is looking real bad.

That doesn't include the late December bulletin that went out when a a crew was doing routine maintenance on the rudders and discovered stray bolts laying around. Nobody seems to know where they came from yet. This is terrifying.

How does this even happen?

Well, back in 1999 when Boeing took over McConnell-Douglas the company moved their HQ from Seattle where the planes were being built and they could provide daily oversight to Chicago. This was likely financially motivated and it was a terrible decision. Quality has been tanking ever since. Their planes keep getting worse and more dangerous as they continue to put profits over safety and have been repeatedly getting fined for safety violations. There are accusations of cheating regulations/safety tests too.

Since then they've again moved their HQ to Washington, DC where they can spend their time lobbying the FAA to give them a break. This, again, is making things worse and worse.

Let's not forget that there's still an open issue where if the pilot leaves the de-icers on for too long it causes the plane engines to catch fire. They're trying to convince the FAA to give them an exception instead of fixing it.

> Pilots flying the Max 8 and Max 9 have been warned to limit use of an anti-icing system to five minutes when flying in dry conditions. Otherwise, the FAA says, inlets around the engines could get too hot, and parts of the housing could break away and strike the plane, possibly breaking windows and causing rapid decompression.


Have a nice flight! ✈️
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@feld @saxnot @nixCraft
The requirement wasn’t ‘redesigning the fuselage’ it was to design an entirely new aircraft.
The present series of 737 is a frankenplane. The powerplant evolution has brought issues at every iteration due to short undercarriage legs designed to accommodate ground clearance for 1960s era low bypass turbojets.
Its avionics evolution has brought issues too: fundamentally a replicated/L-R side config where pilots expected to read the displays & ‘vote’ whether L or R presented the correct information (FBW & other common safety critical systems are triplex).

@guardeddon I don't know about "frankenplane", I'd describe it more like a design that has been stretched, bloated, and warped far beyond its original design goals. Maybe that's the same thing, though. Doing a totally new plane is expensive, taking an existing plane and changing it is cheap--and Boeing can talk the FAA into letting them only certify the new parts (and not the plane as a whole) so it's really cheap!

The original 737 series (737-100 and 200) was lauded for being an amazing plane for the 1960s. Nice to ride in, nice to fly, nice to maintain. However, you can look at the design and tell it bears almost no similarities to the monsters that now bear its name: b737.org.uk/737original.htm#73

Despite all the changes from that original design, they're still (as far as i know) flying under a modification of the original certification for the design from 1967. Because of the work of Boeing's engineers, the FAA, and airlines the plane has remained quite successful but i don't think Boeing is going to be able to push this thing further. It's clearly hitting its limits, at least without major design investment.

@winterayars
No doubt the 737 was a great aircraft in the 60s. Operators continue to fly -200s, one has even retrofitted electronic displays into the flight deck.
I was a big fan of the 757 and have often thought it should’ve been the mid-market aircraft. But I’ll accept the 757 was more equivalent in capacity to the A321 so the market makers at Boeing likely saw the 757 as too big while Airbus was selling A318s and A319s to compete better in 737 Classic replacement opportunities.
An evolved FBW 757 using 777/787 derived avionics would have been a great aircraft.
I’d rate the 777 as the last great aircraft to be designed & built by Boeing.

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