Version Information
26.4
Device Information
iPad 9th gen
Description
While on the LNAV, when turning right about 5 degrees I noticed the aircrafts bank angle can reach 45 degrees going left, then straightens out to the new heading.
Able to replicate. So far have experienced this on the A319, B752, CL35, and E175. When flying towards a new fix, the aircraft banks excessively and overshoots the flight path and swings back and forth for a bit before settling back in a straight line.
2 Likes
I’ve also been experiencing issues with LNAV tracking. As soon as the next fix is targeted, AP banks quickly, turning about 2-4° off track, then recenters to capture the “center” of the track. Happens each time a new fix is targeted in sequential order of the flight plan.
3 Likes
me too on b738
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I’ve also experienced this on the A321 in the beta.
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I have also experienced this while flying the B777-300ER
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Had this as well.
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I’m experiencing this on the A359 as well even if the waypoint in sequence are the same heading.
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Same thing here with the BBJ1
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Same here, but mines was a little different… I thought I was tweaking when my aircraft suddenly banked to the right extremely aggressively in a span of a millisecond and started swaying over and over trying to stay on track (similar to the A35K a few days ago). I gave up and just did heading manually 
If it were IRL, the passengers would’ve definitely been hospitalized… Hopefully it will be fixed very soon.
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Well glad im not the only one, its really annoying me. To be fair it is a beta build.
I have experienced this issue, and it mainly occurs when there is a crosswind component. If the aircraft is experiencing pure headwind/tailwind, or wind with a very small crosswind component, this issue doesn’t seem to occur. If the crosswind component at the end of a leg and at the next waypoint is >5kts, there is a chance that the AP does some crazy 30° bank for no reason.
2 Likes
Ohh yesss. Same situation here. Flying an A350-900 at FL 350.
Crosswind was coming from right approx 45kts. Each waypoint there will be a sudden bank to realign with the flight path
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I dont even think anymore the aircraft banks hard, i think the aircraft itself just tweaks out and then tries to realign
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Having issues with this on the B38M, banks super hard to the left/right then realigns - usually when then next fix has a 0-1° change
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The AP goes out of control when the waypoint deviation is between 0 and 5°; it then jerks to 30° and back to 25° until it stabilizes again. This happens in both normal mode and with stabilization control enabled. Wind does not seem to play a role in this behavior. It’s interesting that the AP can fly at 30°, but the guidance is set at 19° and the aircraft overshoots the target as a result. I fly the Embraer 175/190 and the Airbus A220-300.
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I have experienced this but have usually been able to stabilize by manually flying back to the correct flight path. Inconvenient but not too bad
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True, I found it strange because the next one I was going to turn left.True, I found it strange because my next flight path was a left turn, the plane turned right and then abruptly returned to the left to intercept the next airway.