Andy A Posted February 16, 2020 Report Share Posted February 16, 2020 I’m still trying to work out all the bugs caused during my last annual. I was flying yesterday and my Skyview Classic autopilot on my 2014 CTLSi would not fly level with the autopilot engaged. When I press the level button it holds altitude but after about 10 seconds it rolls into about a 10 degree left or right bank. Does anybody have any suggestion where to start troubleshooting this? It does the same on Alt/Trk mode and Alt/HSI mode. It worked fine prior to the annual inspection. I am thinking I might need to calibrate the servos. Quote Link to comment Share on other sites More sharing options...
Chris S. Posted February 16, 2020 Report Share Posted February 16, 2020 Does it try and correct back or just continue to bank? The one on my CTLS will wallow back and forth a bit in TRK or HSI modes. If I play with the autopilot pitch roll settings it can go from a wallow to a bit more abrupt. I think I have the sensitivity maxed out and the gain to 0, which produces the least noticeable wallow. Quote Link to comment Share on other sites More sharing options...
John Vance Posted February 16, 2020 Report Share Posted February 16, 2020 Did Seahawk at ILM perform the inspection? Quote Link to comment Share on other sites More sharing options...
Andy A Posted February 25, 2020 Author Report Share Posted February 25, 2020 Yes, Seahawk did the annual. Nice guys, but I'll be looking for somebody else to do it next year. Back to the autopilot, I calibrated the servos yesterday and after talking to Arian with FD, I feel good about the calibration. When I test the servos, I don't get full left or right stick movement. The stick will move all the way forward and back, but I only get about 1" of movement left or right. Also, when i press the level button (with the engine turned off and airplane on the ground) the stick constantly jerks about 1/4" each way. I took the servo out and it looks like the shear screw is still intact. Any recommendations? Update: When I actually took the control arm off of the servo, the shear screw was broken. A new one is on the way from Dynon and hopefully this will fix the problem. I am assuming Seahawk Aviation broke the shear screw when they removed the wings for the wing spar inspection. Quote Link to comment Share on other sites More sharing options...
Tom Baker Posted February 25, 2020 Report Share Posted February 25, 2020 Removing the wings should not damage the AP servo, in fact the control system is basically disconnected from the wings prior to removal. Quote Link to comment Share on other sites More sharing options...
Andy A Posted February 27, 2020 Author Report Share Posted February 27, 2020 Maybe it was just a coincidence the annual inspection and shear screw damage happened at the same time. Either way, I am glad the repair is free vs. paying $750 for a new servo. Quote Link to comment Share on other sites More sharing options...
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