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Interestingly, the reason American Airlines was removing the engines (and pylons) in the first place was to replace that same aft bearing. McDonnell-Douglas had found that the aft bearing could wear out sooner than expected and issued a service bulletin requiring replacement. There is mention of it in the AA191 NTSB report[1] and also at Admiral Cloudberg's article on the accident[2].

[1] https://www.ntsb.gov/investigations/AccidentReports/Reports/... [2] https://admiralcloudberg.medium.com/rain-of-fire-falling-the...


Westinghouse plans to with their eVinci reactor. It will use an open-air Brayton cycle: https://www.nrc.gov/docs/ML2409/ML24092A122.pdf


The failure of the pylon appears to be different. On AA 191, the pylon rear bulkhead cracked and came apart. In the case of UPS flight 2976, the pylon rear bulkhead looks to be in one piece, but the mounting lugs at the top of the rear bulkhead cracked.

Admiral Cloudberg has a great article on AA 191 that covers exactly what happened: https://admiralcloudberg.medium.com/rain-of-fire-falling-the...


1940 looks like a Boeing model 377

1949 is the de Havilland Comet

1960 looks like a DC-8 (engines are closer together than a 707)

1974 is probably an A300


I think you nailed it. Thanks!


Flight Works | Irvine, CA | Embedded C/C++ Software Engineer | Full-time, Intern | US-Person | ONSITE

Flight Works, Inc. is a growing OEM (Original Equipment Manufacturer) of advanced components and systems for aerospace, medical, and other applications. We are seeking a dynamic, result-focused, hands-on embedded software engineer to focus on the development of our space electronics products: controllers for brushless motors, valves, and sensors. Preferred qualifications include experience with high-reliability programming in C/C++ on ARM Cortex platforms, as well as experience with RTOSes.

The position provides the opportunity for exposure to many disciplines, systems, and technologies in a fast-paced environment, where you will be working with others in all aspects of the product development cycle, starting with our space products. We are currently producing hardware and software to go out to cislunar space!

We require applicants to be a “US Person” eligible to receive technical data controlled under the Export Administration Regulations (EAR) or the International Traffic in Arms Regulation (ITAR).

Apply here: https://www.flightworksinc.com/our-company/careers/ or email me at james.robertson _at_ flightworksinc.com


I'm up to 9343 tabs in Firefox. I am adding about 2000 per year. I keep thinking I'm going to get back to the older ones and read then close them...


Spread over how many windows? It seems that FF can handle loads of tabs, but after too many open windows, the window manager or something else starts to get sluggish on my machine.


This is across 37 windows. Firefox takes a couple of minutes to start up (possibly due to some extensions not performing well with thousands of tabs), but runs fine after loading.


I would like one, please!


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