I didn’t realize the MD-11 was still in use. It has had a difficult time in passenger aviation. Looks really nasty. It seems to have come down in an industrial area, which will significantly reduce casualties. I can’t even imagine this, in a residential area.
UPS plane crashes near Louisville airport
301–310 of 469 posts
Re: UPS plane crashes near Louisville airport
#302Earlier quoted context omitted.
Statistics say otherwise. Flying was far more hazardous in the days before deregulation.
That may well be correlation and not causation. The industry (edit: planes in particular) is also decades more mature, as is manufacturing in general.
However, it's impossible to argue that deregulation made flying more dangerous, as the GP believes, simply because flying didn't become more dangerous. Sure, maybe we'd be even safer in the air if price deregulation hadn't happened, but that requires an impressive amount of handwaving. Overall, the tradeoff seems to have worked out incredibly well for everyone. The only people who are really in a position to object would be climate researchers.
Re: UPS plane crashes near Louisville airport
#303Re: UPS plane crashes near Louisville airport
#304The AVHerald is usually the best source for these things, rather than MSM: https://avherald.com/h?article=52f5748f&opt=0 > Ground observers reported the aircraft had been delayed for about two hours for work on the left hand engine (engine #1), the engine #1 separated during the takeoff run, the center engine emitted streaks of flames, the aircraft impacted a UPS warehouse and ploughed through other facilities before…
This is likely relevant https://www.vanityfair.com/news/2015/11/airplane-maintenance... TDLR 10-20 years ago, the US started allowing maintenance of domestic planes in foreign countries, outside the reach of the FAA’s inspections
Either way, to say it's "likely relevant" is a huge leap. We have no idea what caused the crash - it could be a million things and likely some combintation of them.
Re: UPS plane crashes near Louisville airport
#305The AVHerald is usually the best source for these things, rather than MSM: https://avherald.com/h?article=52f5748f&opt=0 > Ground observers reported the aircraft had been delayed for about two hours for work on the left hand engine (engine #1), the engine #1 separated during the takeoff run, the center engine emitted streaks of flames, the aircraft impacted a UPS warehouse and ploughed through other facilities before…
https://archive.is/cdKm0 My IP was blocked, for some reason.
Re: UPS plane crashes near Louisville airport
#306Earlier quoted context omitted.
Given an hour spent flying in a commercial US-flagged airliner or an hour spent in your living room, and you're (far) more likely to get hurt or die in your living room.
Is that actual statistic?
In contrast, the United States saw 125,700 preventable deaths in the home in 2023.[3] The country had a population of 336,806,231 people back then.[4] This means a probability of approx 1:2,679 (0.037 %).
[1] ATAG Aviation Beyond Borders 2024
[2] ICAO Safety Report 2024 Edition
[3] National Safety Council (NSC) Injury Facts
[4] World Bank
Re: UPS plane crashes near Louisville airport
#307From wikipedia, Boeing stopped producing MD-11 since 2,000. Does that mean any MD-11 flying is at least 25 years old? I know 25-year is not particularly old for aircrafts, but MD-11 is not exactly reliable. Is there any reason UPS is flying these planes?
Airframes have a limited lifetime, partially defined by takeoffs and landings (and pressurization cycles). Cargo planes experience fewer cycles than passenger airlines since cargo carriers' aircraft usually only make a one or two flights a day, whereas passenger aircraft a flown back to back as frequently as possible. Historically, cargo carriers would buy used aircraft and convert them, but that's changing.
Wide-body (long-haul) airplanes are generally limited by flying hours since they rarely reach their maximum allowed flight cycles.
In contrast, wide-body cargo planes typically fly shorter legs compared to when they are used as passenger carriers. And as a result, they are much more likely to hit their critical cycle limit.
Re: UPS plane crashes near Louisville airport
#308Earlier quoted context omitted.
Oh woah, very insightful discussion thread you found there. So the tl'dr is: the leading very preliminary theory is that the MD-11's left engine fell off the wing just like https://en.wikipedia.org/wiki/American_Airlines_Flight_191 (a DC-10, the immediate predecessor of the MD-11) which was caused by maintenance errors weakening the pylon structure holding the engine.
This video from an aviation youtuber contains a picture of the engine: https://www.youtube.com/watch?v=U4q2ORhIQQc&t=526s (the video itself is also worth watching in full IMHO). What strikes me as odd is that this looks like the "naked" engine, without the cowling/nacelle that usually surrounds it? Anyway, if an engine departs the aircraft shortly after (last-minute) maintenance was performed on it, that's indeed sus…
Re: UPS plane crashes near Louisville airport
#309Earlier quoted context omitted.
Oh woah, very insightful discussion thread you found there. So the tl'dr is: the leading very preliminary theory is that the MD-11's left engine fell off the wing just like https://en.wikipedia.org/wiki/American_Airlines_Flight_191 (a DC-10, the immediate predecessor of the MD-11) which was caused by maintenance errors weakening the pylon structure holding the engine.
This video from an aviation youtuber contains a picture of the engine: https://www.youtube.com/watch?v=U4q2ORhIQQc&t=526s (the video itself is also worth watching in full IMHO). What strikes me as odd is that this looks like the "naked" engine, without the cowling/nacelle that usually surrounds it? Anyway, if an engine departs the aircraft shortly after (last-minute) maintenance was performed on it, that's indeed sus…
Re: UPS plane crashes near Louisville airport
#310From wikipedia, Boeing stopped producing MD-11 since 2,000. Does that mean any MD-11 flying is at least 25 years old? I know 25-year is not particularly old for aircrafts, but MD-11 is not exactly reliable. Is there any reason UPS is flying these planes?
Airframes have a limited lifetime, partially defined by takeoffs and landings (and pressurization cycles). Cargo planes experience fewer cycles than passenger airlines since cargo carriers' aircraft usually only make a one or two flights a day, whereas passenger aircraft a flown back to back as frequently as possible. Historically, cargo carriers would buy used aircraft and convert them, but that's changing.
[1]: https://www.flightradar24.com/blog/flight-tracking-news/majo...