163CD has had a couple of problems.
First, the ARNAV freezes up when doing an ILS to MYF. It happens every time. If I hit the exit button twice it will reaquire and then lock up again. People at ARNAV thought that the problem might be a loose connection between the Garmin and the ARNAV. They suggested that pin 10 should be inspected for overcrimping. The unit was pulled, inspected and reinstalled. I flew the ILS yesterday . . . same problem, the ARNAV locked up. Has anyone else had this problem? I’m thinking now that there is a software glitch.
The other problem was with the HSI. On an ILS the glide slope indicator stuck in the on glideslope position. There was no flag. If I’m not mistaken, someone else reported a similar problem. As it happend, I had the other VOR receiver tuned to the localizer. I think I’ll continue this practice; intersections can be identified through the GPS. The HSI has been fixed.
So far I have been very pleased with the service I have received from Cirrus, ARNAV and Crownair in dealing with these problems.