The Apparent Wind Angle AWA is displayed with the correct absolute value but on the wrong side i.e. Starboard when it should be Port and vice-versa. Same wrong information is shown on the GMI 20 and the GPSMap. The information is coming from a gWind and a GND 10. Actions on the GND 10 like Factory Default or Angle Offset doesn't fix the problem. The system has been working properly during the last 2 years and went wrong 2 weeks ago without visible reason. Suggestions and help will be highly appreciated!