Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
In X-Plane 11.52r1, C152 v1.8 has a dark GTN 750 when aircraft is powered up starting from cold & dark. It used to work just fine and that was quite recently. Any suggestions?