If there a menu on/off for the FD?ĭid you see the note in the Aspen manual (p. I just don't the relationship of how the flight director works within the STEC environment.Ĭhris, Either I don't have the FD feature or it is turned off if that is an option, I did not add anything to the basic STEC50 that was installed prior to the Aspen. When the bars are there, it works like it supposed to. It really looks like it has something to do with the flight director. When I load a new flight plan or waypoint, the correct heading shows up on the Aspen, the flight director bars are missing and the AP will not command a turn. Do you have the flight director (STEC ST-670) option? I have tried all sorts of things including canceling and reloading the flight plan, using the direct to function, using the heading bug only. But in that mode the course line is not relevant to what the AP is being asked to do. If that is so my comment about the GPS is off base. I reread your note and see you have tried to simply fly a HDG, non-GPSS, and the AP does not fly the HDG you've selected on the Aspen. Have you tried changing the WP on the 650 to see if the aircraft turns to the new course? If you choose to go DIR to the next WP what happens to the heading?Įdit. The only idea I might have would be to be sure the Aspen has the right info from the GPS. Hopefully they can shed some light on this.Ĭhris, I have a 750, Aspen and a STEC 50. I have an email out to the avionics shop. Take a look at the video and let me know what you think. Has anyone know seen this issue with their STEC flight director/AP? I think the Aspen has nothing to do with the problem. The bars were missing, except for a brief appearance at 27 seconds into the video. I think it is related to the single cue flight director. I had a camera with me and I made a video of what I saw. As I returning home, I engaged the AP and noticed the same problem. I was out shooting some LPV approaches over the weekend with and without the AP engaged. Over the next couple of weeks, all of the flights that I used the AP, I was able to do so without any problems. Resetting everything and reconnecting did not make a difference. Again the plane was AP not holding the heading. I disengaged the AP and reconnected using just the heading mode. I noticed the plane was drifting very slowly left of course. A couple of weeks ago, I was flying back from the shore and had the AP engaged in GPSS mode. As most of you know, I have a dual Aspen 2000 linked to a Garmin 650 and a STEC 60-2.