It was my Daher TBM 930 literally shaking itself to pieces, struggling to stay on course with the AP. As soon, as i took over manually, the plane flew smooth as silk. Once i turned on the AP, off it went shaking like a s+++++++ dog!
Now that’s not right is it!
In all my TBM flights since release, following a flight plan has been very smooth. You can wait to see if anyone else chimes in, but if this happen consistently to you with the TBM, no harm submitting a report to Zendesk.
It’s happened a few times with the TBM. Usually flying low/high IFR though and not direct. Really struggles to line up ILS as well.