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Hi,I used to have this problem when i was starting with a js41 saved flight.Pascal.

First, thanks for your reply.It seems that I was selecting buttons in bad order. I should have followed tutorial flight instructions closer.After taking off, HDG was selected then inspite of pushing the autopilot button, I was selecting nav mode.So the solution that seems working :1) HDG On with altitude select2) Autopilot on3) Direct to the first waypoint in the FMS4) Finally NAV On with LNAV mode selected.Hope this can help beginners like me.Pascal. (LFPO)

Hi,I engaged the LNAV mode and the autopilot is also ON with HDG selected. But when i push the nav button, the aircraft goes to the north direction even after push the direct to button on the FMS to the next waypoint.Any idea of what's wrong ?ThanksPascal