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Boeing asks airlines to inspect 737 Max jets for potential loose bolt

14 Comments
By WYATTE GRANTHAM-PHILIPS

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14 Comments
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A nut secured with safety wire shouls never work loose much less fall off. How far has Boeing fallen /:

2 ( +2 / -0 )

How far has Boeing fallen /:

It's Muilenburg over and over, and over. I feel for Calhoun having to devote so much of his time and effort fixing his predecessor's blunders, one of the biggest is letting spirit work for Boeing's competitor Airbus....all the know how, off to Airbus for nothing in return.

2 ( +3 / -1 )

Boeing asks airlines to inspect 737 Max jets for potential loose bolt

I'm more concerned about the loose nuts in my neighborhood.

2 ( +4 / -2 )

It's Muilenburg over and over, and over.

It is deeper than that. Boeing's problems are traceable to their 1997 purchase of McDonnell Douglas. The resulting company kept the Boeing name but most of the Boeing leadership was replaced by top managers from McDonnell Douglas. Some at the time said that what really happened was McDonnell Douglas bought out Boeing with Boeing's money. Boeing's engineers and their commitment to innovation and excellence were replaced by McDonnell Douglas penny pinching bean counters re-hashing old designs.

https://qz.com/1776080/how-the-mcdonnell-douglas-boeing-merger-led-to-the-737-max-crisis

1 ( +3 / -2 )

Leadership is key but even with the best, if you lose the market share to Airbus and let China make their own planes, it’s going downhill.

0 ( +1 / -1 )

Death traps. Stay away from this aircraft.

1 ( +3 / -2 )

Those who make the Boeing 737 Max jets have loose bolts.

Standard definitely has gone down since I worked at Boeing.

1 ( +3 / -2 )

If its 737 Max boeing ,I ain't going

-1 ( +1 / -2 )

That's a killer plane. Literally. It killed over 300 persons and will kill more.

0 ( +0 / -0 )

Boeing has promoted the head of its services business to chief operating officer, putting the female executive in discussion as a potential heir apparent to CEO David Calhoun in a male-dominated industry.

Boeing said Monday that Stephanie Pope’s elevation to the job, which includes the title of executive vice president, takes effect Jan. 1.

First woman CEO for Boeing.

0 ( +0 / -0 )

This sounds very much like a metallurgical failure issue, which Airlines need to take Seriously. As too all flight booking operators - currently you can't choose your aircraft type. I want that to be made mandatory in future across the Industry - regardless whether budget airlines or otherwise.

0 ( +0 / -0 )

This sounds very much like a metallurgical failure issue, which Airlines need to take Seriously.

No. The failure was a nut falling off a bolt on a control linkage. In aviation, we generally put the bolt in from the top and the nut goes on the bottom. This way if the nut does fall off the bolt should stay put by gravity (airliners don't do aerobatics but this rule might not save a fighter from in-flight failure). From many years of experience in aviation whomever put that assembly together did two things wrong, possibly three. First, they didn't torque the nut to the correct value. A properly torqued nut of the correct grade should not fall off. That is assuming the correct grade of nut was used. If the wrong grade of nut was used it might not have been able to hold the correct torque. Last, after the nut is torqued to the correct value it should be safety wired such that loosening the bolt pulls against the safety wire. Some or perhaps all of these steps were missed assembling that control linkage.

1 ( +1 / -0 )

Boeing said Monday that Stephanie Pope’s elevation to the job, which includes the title of executive vice president, takes effect Jan. 1.

This isn't a criticism confined strictly to Ms. Pope, but her academic qualifications are a BA in Accounting and an MBA. She is not an engineer. As long as the green eye shade crowd is running the company they will continue to have engineering failures along with needless deaths. David Calhoun has a degree in accounting with a background early on at GE and later spent years in private equity. He's not an engineer. He's not a pilot. He doesn't know dog doo-doo about aviation. But he runs Boeing.

0 ( +0 / -0 )

A whistleblower has come forward.

Seems Spirit, a Boeing subcontractor, has been delivering hundreds (over 350) of incomplete, improperly screwed plugs to Boeing in the last year. These are usually caught, then covered under warranty from Spirit.

The whistleblower says it is common for the first "fix" under warranty not to actually address the missing screws, but to just paint over the problem.

If it isn't obvious, finding issues gets in the way of producing a quality product. Ideally, there wouldn't be any issues found, so inspectors can actually look passed the stupid problems and into more subtle quality issues. If all you see are problem red leaves, pretty soon, you'll miss the orange leaves.

Boeing should have stopped Spirit from delivering any plug doors with any issues after the 5th time, not after 350+ times. Sometime systemic is broken at Spirit.

If a certified airline mechanic had missed these things, they'd have charged files and end up in jail over federal crimes. Because the aircraft aren't yet accepted, Spirit is getting away with this, but only because Boeing allows it. This is a Boeing and Spirit management problem.

As the B737-Max screw inspections have continued, they are finding more and more issues across multiple airlines.

One thing that would be funny, if it didn't risk human lives, is that missing screws on the right-hand-side plugs doesn't automatically force the left-hand-side plug screws to be inspected as well. Somehow, things that happen on 1 side of a plane are deemed unrelated to the other side.

Both Boeing and Spirit need heave fine, in addition to fixing the issues AND fixing the root problem. Perhaps $1M/plane fines with any issue uncovered would get their attention? Less and the accountants would mark it as a cost of doing business. A large, per incident fine would get their attention, especially for something that multiple processes should have caught, but obviously didn't.

0 ( +0 / -0 )

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