When I enter the company route, that appears, ive tried a few routes, all the same message, ive tired routes with different origin, same message but different runway, I think thats why I cant arm LNAV and VNAV.ThanksConstantine V EDIT: Opps sorry, didnt see how bad this post was.When I enter a route, into the FMC, the warning 36 RNW load error, usually accompanied buy another/the corresponding runway shows up, I can easily clear the message, but LNAV and VNAV wont arm, I think I maybe doing somthing else wrong. The route I'm entering is a route PMDG provides from the Flightplan folder, and I am entering it in the Company route section in the FMC.I have the 747-400X.ThanksConstantine V.

I think that You should be much more specific. And maybe posting in thread regarding Your aircraft would be more helpful.

What it means is that the route you are loading is telling the FMC to land/lift-off from runway 36, but the FMC does not recognize it. It might be that between FSX's release and PMDG's release, there are discrepencies. These might be as little as adding another parallel runway so they are now "36L" and "36R", or as complex as a total error between the route and the airport, which has runway 9-27.If you open the route using a text editor like notepad, you can change around the runways to use, or create the runway in the airport's file.

The solution is to make sure your navdata is the same cycle as the sidstar file. Current data is obtained from navigraph.comThe error occurs when there has been a runway renumbered, happens fairly often.

So could you please tell me what I have to do to fix it? And what do you mean by a renumbered runway?Thanks.,Constantine V Edit: Oh I see, I just open the FP in the notepad and change the runway, But this happens with every airport for me, do I need to change all the runways?Thanks all, Kind regardsConstantine V.

Another thing that I have noticed is that all the departing runways/destination runways are the same, and there is only one flight plan that works, that is AAYBBNYSSY, it is set out differently when I open it and it works, is says its generated by FS build 2.2 and the others arnt, the others are all set out differently and have different names such as SYDSIN001, JFKLAX001.Constantine V

The most recent AIRAC cycle included changes to many airports magnetic deviation and as a result can have changed runway numbers due to said magnetic heading change as seen on the Houston Hobby (HOU) compare airport diagram. If you downloaded the most recent AIRAC cycle, your saved FPs may need to be changed if you intend to fly them again.