MAYDAY TV Shows "Hidden Danger" United Airlines Flight 585, USAir Flight 427, and Eastwind Airlines Flight 517
On 3 March 1991, a Boeing 737 operating as United Airlines Flight 585 suddenly rolls into a dive and crashes within eight seconds, killing all 25 people on board. On 8 September 1994, USAir Flight 427 also rolls and crashes within thirty seconds, killing all 132 people on board. On 9 June 1996, Eastwind Airlines Flight 517 also rolls unexpectedly in similar circumstances, but the crew successfully regains control of the aircraft and lands safely. The cause of all three incidents was a design flaw with the rudder's control system which allowed the rudder to suddenly and unexpectedly go to full deflection and jam due to thermal shock of the hydraulic control valve.
United Flight 585 & USAir Flight 427
Fatal Flaw - United Airlines Flight 585, USAir Flight 427, Eastwind Airlines Flight 517
The Boeing saga continues.
if it’s Boeing, you ain’t going ...,
Crews have been trained how to deal with it... So competent pilots shouldn’t have a problem. By the sounds of it, the training is obviously working because the pilots in this case avoided a problem during this incident.
Are we suggesting that a fault identified over 30 years ago hasn’t been fixed? Please.
BTW classical “dutch roll” when I learned aerodynamics didn’t involved the rudder at all. It was a symptom of a mismatch between the wing dihedral and the area of the vertical stabilizer, plus other side areas both ahead of and behind the center of mass. Some designs, notably the Bristol Beaufighter cured dutch roll by raising the tips of the horizontal stabilizer to form a distinct vee.
Dutch rolls are not uncommon, nor are they necessarily dangerous depending upon the severity. The older model Beechcraft “V” tail six-seaters were bad about it, as they had a constant mild dutch roll just flying at level flight. I have a few hours in them, and that constant tail-wagging drove me crazy. I never understood why people would own these planes.
I get a kick out of reading the reply’s. The basic story was posted a day or two ago with the comments here going the opposite as in this version of the story. It seems the pilot left the cabin before the incident.
The point is that you all better wait until the real facts are in.
Dutch rolls are fun.... When you mean to do it.
I am thinking of suing. My last flight was B O R I N G and here these people get some entertainment I should have been able to vote on. The pilot should have asked everyone all in favor of a “Dutch Roll” say aye.
I find it very odd that this is happening. Boeing has made tens of thousands of aircraft with an outstanding safety record. What has changed?
I find it very odd that this is happening. Boeing has made tens of thousands of aircraft with an outstanding safety record. What has changed?
I think that in order to reduce the workload of the pilots, they have remanded too much to computers and the computers are failing.
I heard a report yesterday that was worded in a way which faulted the flight crew.
Historically, that’s possible, but the investigation should prove interesting, especially considering the aircraft type’s history.
It should also prove interesting how Boeing slithers out of this one...
Boeing 707 roll by Test Pilot Tex Johnson
Nice short video from yesteryear. Worth a watch.
https://youtu.be/Ra_khhzuFlE?si=etkLBPY3LcBnNcvU