Hi John,
You are welcome. I am glad you have been able to update your Navigation Data. The current AIRAC cycle is displayed at the top right of the FMS Data Manager:
You need to run the FMS Data Manager after each AIRAC cycle dates for which are shown at Navigation Data AIRAC Cycles. You have done the hard work. Unless you have added new aircraft you only need to do step 5 above:
- In Addon List, select X-Plane 12 and any X-Plane 12 addons, and press Update
You can see the installed AIRAC cycle dates number in the FMC Status page of the default 737-800:
The Zibo Mod 737 gives the AIRAC number and dates:
There are instructions for FMS Data Manager at FAQ - Installing Navigation Data AIRAC Updates
Cheers
Ian