Does the Lnav bug?

Hi Community I just tried to do an flight from Vancoucer to Mexico City. I failed it bc Lnav didn’t work i was over the pacific at the end. I’ve just wondered if others have experienced similar problems?

Did you use appr before takeoff?

If so head to Nav, and make sure use see GPS not NAV1.

1 Like

No (I mis clicked, but the plane to heavy so it didn’t turn on

Did you have waypoints that were too close together or had too sharp a turn?

Also, I don’t think I’ve ever had a problem like this before.

That was my flight plan
And the whole thing happened right after Vancouver

1 Like

Did you activate VNAV? LNAV does not descend, maybe it did follow your flight plan but then kept going after


Do you have a replay of your flight? If so, upload the replay file to Share My Infinite Flight and paste the link here, so we can take a look and see exactly what happened.

There ya go thanks for the time


From what I can see, just around the time you passed through 1,900 feet after takeoff, your NAV source was switched to NAV1, and stayed there for the rest of the flight. NAV1 was tuned to 109.700. That’s why your airplane didn’t follow your flight plan.

In the future, if you want your airplane to follow your flight plan through LNAV, remember to double-check your NAV source, and make sure it’s set to GPS, before turning on LNAV. You can do this by clicking on the NAV menu button (which is above the A/P menu button) and selecting NAV SRC to GPS.

Hope this helped you! Sorry that your flight didn’t go as planned.


Thanks for the tip mate ✈️✈️✈️

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.