Hello AllIs it possible to find out which version of the Airac cycle you have installed? I have hunted through the FSNav in modules but iam none the wiser.cheers Andy

Looks like if you go into "...Flight Simulator 9ModulesFSNavigatorBin" and open up AIRWAY.txt or ISEC.txt it tells in the header which cycle you have installed.Jim

Thanks very much Jimcheers Andy

Easier way is to open the FMC and go to the index page and hit the ident key and you should read the current AIRAC Cycle just under the AC ID (at least it is so on the PMDG 737.