Thoughts on the UPS Crash.
UPDATE: November 16, 2025
Investigators are looking into the possibility that a structural failure — a fracture in the pylon that connects the engine to the wing — may have caused the engine separation that struck UPS fight 2976 on November 4th.
Shortly after the accident, the FAA grounded all MD-11 jetliners. This weekend they extended that emergency order to all remaining DC-10 jets. The MD-11 is a derivative of the DC-10 and shares many structural components.
Very few DC-10s remain active. Fewer than ten survive, used as freighters or as specialty firefighting planes.
In 1979 the FAA grounded all U.S.-registered DC-10s, and banned the plane from U.S. airspace, following the horrific crash of American Airlines flight 191 in Chicago (see below). Then, as now, the culprit was engine pylons. Airline maintenance procedures were blamed for causing cracks, but investigators criticized the pylon design as well. Did this issue rear its head again, all these decades later, in Louisville?
The poor DC-10 was beset by a slew of design shortfalls that contributed to several accidents. Cargo doors, floors, hydraulics, pylons. The Chicago disaster killed 273 people. Five years earlier, a faulty cargo door led to the crash of a Turkish Airlines flight outside Paris, in which 346 were killed.
So far as I know, the DC-10 becomes the only commercial jet to be grounded twice. A jinxed machine that can’t escape its fate. Here it is, with only the tiniest number still in service, yet its bad luck continues.
November 6, 2025
You’ve all seen the footage by now. Late on Tuesday afternoon, a UPS MD-11 freighter crashed off the runway in Louisville, Kentucky, erupting into a wall of fire. All three pilots perished, as did several people on the ground.
For reasons unclear, the left-side engine of the three-engine widebody jet separated from the wing before liftoff. Beyond that, there’s not a lot we know.
A commercial jet is, by regulation, able to safely take off and climb with a failed or detached engine. That doesn’t guarantee success, however. Everything must be done right, procedurally. It’s something pilots train for all the time, but when you’ve got a widebody jet at max takeoff weight, there’s nothing easy about it.
And there was more going on. From the video, it appears that the left wing was on fire. It’s possible the wing, or its critical control surfaces (flaps and slats), were damaged.
We can’t help thinking of American Airlines flight 191, a DC-10 that lost its left engine on liftoff at Chicago in 1979. The engine rolled over the top of the wing and tore out hydraulic lines, causing the flaps and slats on that side to retract. These devices are crucial for maintaining lift at low speeds. Without them, the wing stalled; the plane rolled over and crashed into a fireball killing 273 people. Indeed, the sequence that befell AA 191 isn’t at all unlike the one in Louisville.
It’s also possible that the MD-11’s center engine, located at the base of the tail, may have ingested debris or hot gasses from the wing fire, causing that engine to suffer a power loss, or fail completely, as well. A jet can take off with a lost engine. It cannot take off with two lost engines.
This brings to mind the Concorde disaster at Charles de Gaulle Airport in 2000. With one engine already failed, a wing fire fed by leaking fuel caused the adjacent engine to quit as well.
A derivative of the star-crossed DC-10, the MD-11 was developed by McDonnell Douglas in the late 1980s. It didn’t sell particularly well. Long since retired from passenger service, a few remain in service as freighters, mostly with UPS and FedEx. The plane has a reputation for being difficult to handle in certain situations, such as when landing in gusty winds. MD-11s were involved in at least three landing rollovers. Whether or how its characteristics played a role in Tuesday’s disaster is unknown. It’s not likely.
At least four different videos of the MD-11 crash have been making the media rounds, each of them pretty gruesome. In the old days it was rare for crashes to be caught on film, be it photographs or video. Someone had to have a camera handy at exactly the right second. The few that were captured became iconic images, such as the photo of the PSA 727 in San Diego in 1978, its wing afire after colliding with a Cessna, and the aforementioned DC-10 at Chicago, rolled onto its side and out of control.
Nowadays, with cameras everywhere and a public starving for sensational images, a plane goes down and the footage is bouncing around social media within minutes.
I’m not sure how I feel about that.
Photo by Lukas Souza, courtesy of Unsplash.


















