[HN Gopher] United Airlines inspections find loose bolts on seve...
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United Airlines inspections find loose bolts on several 737 Max 9
aircraft
Author : doomlaser
Score : 79 points
Date : 2024-01-08 21:20 UTC (1 hours ago)
(HTM) web link (www.cnbc.com)
(TXT) w3m dump (www.cnbc.com)
| outside1234 wrote:
| Such a crappy aircraft - can we just get rid of these already?
| jlmorton wrote:
| Always refactor
| kube-system wrote:
| Bolts can be loosened, or fail to be tightened on any aircraft.
| I suspect this may be a problem with people and/or procedure.
| RomanPushkin wrote:
| The question is not about bolts, but more about what else is
| hidden there, what else is mechanically neglected that's
| waiting in there to take lives
| adrian_b wrote:
| Since the aircraft with the incident was extremely new, it is
| pretty certain that the bolts have not been properly
| assembled at Boeing, so the problem is with their assembly
| procedures.
| infotainment wrote:
| Agreed -- while we're at it, let's break Boeing up into
| multiple firms. It has been "too big to fail" for too long.
| jerlam wrote:
| Not sure that would help - the Boeing subcontractor that
| likely played a role in the defective parts, Spirit Aero, was
| previously part of Boeing and spun off in 2005.
| AnthonyMouse wrote:
| If Boeing has insufficient competition, they don't have to
| care because their customers have limited alternatives. If
| they don't have to care then they don't have to care if
| their subcontractors care. They also have limited fear of
| regulators because the US government will be wary about
| damaging the country's sole supplier in an important
| industry.
|
| Break them up and it's easier for both the market and the
| government to punish bad behavior.
| KptMarchewa wrote:
| Force it to develop actually new airplane, not rely on
| grandfathered type license from 60 years ago.
| selectodude wrote:
| They keep trying to do that. This mess of a plane is care of
| Southwest and Ryanair who wanted a re-engined 737, period.
| _jal wrote:
| I don't know that they could. We're talking about Boeing,
| they're the sort of MBA hive that's embarrassed to have to
| employ engineers.
| ramesh31 wrote:
| >Such a crappy aircraft - can we just get rid of these already?
|
| It was a beautiful aircraft, destroyed by years of management
| comittees.
|
| Boeing needs to be broken up and reorganized, full stop.
| Congress has to act. It is simply too important and vital of a
| company to US strategic interests to be left in this state.
| epicureanideal wrote:
| Maybe Apple, or Elon Musk, or some other person or company
| with a spare hundred billion could spin up a decent aircraft
| company?
| trebligdivad wrote:
| https://www.youtube.com/watch?v=maLBGFYl9_o is a good video
| explaining how the bolts/doors etc are supposed to go together.
| rconti wrote:
| So, about that Max 10 on which you were hoping to get fast-track
| approval...
| 0cf8612b2e1e wrote:
| Airbus must be having a fantastic week.
| squiffsquiff wrote:
| Airbus is Fire RN
| dataflow wrote:
| How were these not noticed in proper inspections? Is this the
| first time these planes have been inspected?
| Kluggy wrote:
| They generally don't disassemble the entire plane every time
| they get inspected...
| dataflow wrote:
| This required a full disassembly to be noticed?
| janice1999 wrote:
| They do disassemble the entire plane for heavy maintenance
| checks every 6-12 years. The MAX 9 has been in operation for
| just a few weeks though...
| 0cf8612b2e1e wrote:
| That's pretty incredible. After a heavy maintenance
| breakdown, what percentage of the plane gets replaced? Or
| is everything already on a routine maintenance schedule so
| the intention is to visually identify unexpectedly failing
| parts?
| jupp0r wrote:
| IIRC every bolt's torque value needs to be logged any time
| it's (re)fastened. At least that's true for aircraft engine
| maintenance, not sure if it applies to the assembly process
| of the airframe, I'd sure hope so!
| SketchySeaBeast wrote:
| Man, if that's not automated how do they keep the numbers
| from being fudged? That's a lot of bolts, isn't it?
| sparky_z wrote:
| Which doesn't rule out, say, a design flaw that allows the
| bolt to loosen over time under certain circumstances.
| gnopgnip wrote:
| Shouldn't the bolts be safety wired after being torqued?
| exabrial wrote:
| Precisely... everyone other "expert" on HN is asking the wrong
| questions
| 2mol wrote:
| Duplicate of https://news.ycombinator.com/item?id=38917820 ?
| ChrisArchitect wrote:
| [dupe]
|
| Discussion here: https://news.ycombinator.com/item?id=38917820
| genman wrote:
| So is this comment -
| https://news.ycombinator.com/item?id=38918949
| Aqueous wrote:
| Literally just flew on a United Airlines 737 MAX 9 one week ago.
| It seems like the craft I flew on has probably been grounded in
| the week since. I noticed that we were flying on a MAX before
| boarding and nearly asked to switch flights, but consoled myself
| that I was being irrational and that the planes were almost
| certainly fine now. Guess my confidence was misplaced.
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