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Incident: Condor B767 at Halifax on Jun 28th 2016, uncommanded roll
A Condor Boeing 767-300, registration D-ABUM performing flight DE-2414 from Frankfurt/Main (Germany) to Halifax,NS (Canada), was on approach to Halifax when the crew noticed some uncommanded roll of the aircraft that was countered. The aircraft continued for a safe landing on Halifax's runway 23. (avherald.com) Plus d'info...
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So far, the best explanation of this is an un-commanded roll requiring a persistent 2° Input of aileron control in the opposite direction of the role. This is the only thing that makes any sense.
Hate to think it was heat rising off the lakes lifting a wing or the rudder wasn't engaged by the autopilot. Too many airline pilots get their hours on autopilot then feel disoriented in control of the aircrafts. Hope its not a computer problem appearing. Saw one crash related to the only way to get rid of flight control systems errors was to reboot the computer.....the reboot in a rocking and rolling thunderstorm proved fatal since it turned all flight reference instruments off for a minute or two. Seen some way too sad stuff especially a procedure like that being certified for flight.
That's why I almost always fly up to rvsm airspace by hand. Good to have a sense of what the airplane is doing. I usually kick auto off when cleared for a visual approach also. Good to keep the stick and rudder skills active. I agree about the reboot as well. Probably better to wait for more visual type weather before rebooting a flight instrument. Even if one is not indicating correctly. Usually there is an "abnormal checklist" procedure for correcting this.
"The captain announced in the waiting lounge, that the aircraft had shown a 2 degree uncommanded roll during the approach to Halifax, the cause of which could not be determined". Maybe the ever so well informed avherald meant 20 degrees, or not, but a 2 degree roll is almost imperceptible and thus I wonder. A split flap condition yields 20 or 30 degrees in short order. More to come, I hope. Nah. If the "herald" and several other airline parasitic media outlets went away, gosh we might recognize this site for what it was a few years ago.
