Continous bank in ALTN law

[kshsim]

Hello everyone,

I am new here and the reason I am joining is that I found answers to many of my questions here already.

So now I am asking about an issue I came across to that I couldn't find an answer to so far.

So my question is that, on A320 when we are in a steady flight at FL100 and the aircraft changes to ALTN LAW (for example double ADR failure), is it normal that the a/c start banking slowly (0.5 deg/min) with no side stick input?

[MarkMcC]

Check your rudder trim position. In ALTN law you don’t have the bank angle stability present in NORMAL law; if there is any amount of trim present (which there often is) there will be a corresponding secondary roll tendency.

[FlightDetent]

Yessss. https://www.gov.uk/aaib-reports/airbus-a321-231-g-medj-24-august-2010.